CN116657414A - A kind of preparation method and application of sunscreen refrigeration polyurethane emulsion - Google Patents
A kind of preparation method and application of sunscreen refrigeration polyurethane emulsion Download PDFInfo
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Abstract
本发明涉及一种防晒制冷聚氨酯乳液的制备方法和应用，制法：将表面有纳米杂化镀膜的微胶囊硅藻土添加到聚氨酯乳液中，搅拌和超声波振荡配置得到防晒制冷的聚氨酯乳液；表面有纳米杂化镀膜的微胶囊硅藻土是将微米级硅藻土加入到纳米杂化水溶液中，搅拌后逐步浓缩烘干，然后超微粉碎得到的；纳米杂化水溶液是由纳米杂化材料分散于水中配置得到的，纳米杂化材料为纳米石墨烯、纳米二氧化钛、纳米氧化锌和纳米氧化铝的一种以上；应用：用于对纺织面料进行表面涂布整理；本发明的制备方法增加了面料的防晒降温功能；本发明的应用中，所使用的防晒制冷聚氨酯乳液的配方均是环保材料，可以运用到各种后整理技术中增加产品的防晒降温效果。The invention relates to a preparation method and application of a sun-proof and refrigeration polyurethane emulsion. The preparation method: add microcapsule diatomite with a nano-hybrid coating on the surface to the polyurethane emulsion, stir and ultrasonically oscillate to obtain a sun-screen and refrigeration polyurethane emulsion; Microcapsule diatomite with nano-hybrid coating is obtained by adding micron-sized diatomite into nano-hybrid aqueous solution, gradually concentrating and drying after stirring, and then ultrafine grinding; nano-hybrid aqueous solution is made of nano-hybrid material Dispersed in water and configured, the nano-hybrid material is more than one of nano-graphene, nano-titanium dioxide, nano-zinc oxide and nano-alumina; application: used for surface coating and finishing of textile fabrics; the preparation method of the present invention increases The sun-proof and cooling function of the fabric is improved; in the application of the present invention, the formula of the used sun-proof and cooling polyurethane emulsion is an environmentally friendly material, which can be applied to various finishing technologies to increase the sun-proof and cooling effect of the product.
Description
技术领域technical field
本发明属于功能材料技术领域，涉及一种防晒制冷聚氨酯乳液的制备方法和应用。The invention belongs to the technical field of functional materials, and relates to a preparation method and application of a sunscreen refrigeration polyurethane emulsion.
背景技术Background technique
适当的晒一下太阳，对身体是有一定好处的，但如果是长时间晒太阳，将会对我们身体造成危害，比如视力减退、老年性黄斑病变、头发损伤、引发黑色素瘤、引发皮肤病，甚至破坏人体免疫系统。因此，防晒降温是一个关乎民生和优化环境的重要研究课题。Proper exposure to the sun is good for the body, but if it is exposed to the sun for a long time, it will cause harm to our body, such as vision loss, age-related macular degeneration, hair damage, melanoma, and skin diseases. Even destroy the human immune system. Therefore, sun protection and cooling is an important research topic related to people's livelihood and optimizing the environment.
文献1（隔热降温型纳米材料防紫外线伞布的开发[D].东华大学，2012.）提供了纳米二氧化钛、二氧化硅和氧化砹的抗紫外运用，还使用了大量的辅助助剂，但是该方法制备的产品的UPF值在40+，仍然不满足隔热和降温效果的需求。Document 1 (Development of heat-insulating and cooling nano-material anti-ultraviolet umbrella cloth [D]. Donghua University, 2012.) provides anti-ultraviolet application of nano-titanium dioxide, silicon dioxide and astatine oxide, and also uses a large number of auxiliary agents , but the UPF value of the product prepared by this method is 40+, which still does not meet the needs of heat insulation and cooling effects.
专利CN109423105A，提供一种散热降温纳米粉新材料，具体提供一种散热降温纳米粉末，该粉末由特定质量和粒径不同的小颗粒混合而成,主要成分是SiO2、Al2O3、ZnO、MgO等，该方法是纳米无机材料的配方使用，从而形成散热降温效果，但是材料中含有不环保的重金属。Patent CN109423105A provides a new material for heat dissipation and cooling nano powder, specifically provides a heat dissipation and cooling nano powder, which is composed of small particles with specific quality and different particle sizes, and the main components are SiO 2 , Al 2 O 3 , ZnO , MgO, etc., this method is to use the formula of nano-inorganic materials to form a heat dissipation and cooling effect, but the materials contain heavy metals that are not environmentally friendly.
因此，研究一种防晒制冷聚氨酯乳液的制备方法和应用，以解决上述问题，具有十分重要的意义。Therefore, it is of great significance to study a preparation method and application of a sunscreen refrigeration polyurethane emulsion to solve the above problems.
发明内容Contents of the invention
为解决现有技术中存在的问题，本发明提供 一种防晒制冷聚氨酯乳液的制备方法和应用；In order to solve the problems existing in the prior art, the present invention provides a kind of preparation method and application of sunscreen refrigeration polyurethane emulsion;
为达到上述目的，本发明采用的方案如下：In order to achieve the above object, the scheme adopted by the present invention is as follows:
一种防晒制冷的聚氨酯乳液的制备方法，将表面有纳米杂化镀膜的微胶囊硅藻土添加到聚氨酯乳液中，搅拌和超声波振荡配置得到防晒制冷的聚氨酯乳液；A method for preparing a sun-proof and cooling polyurethane emulsion, comprising adding microcapsule diatomite with a nano-hybrid coating on the surface to the polyurethane emulsion, stirring and ultrasonically oscillating to obtain a sun-proof and cooling polyurethane emulsion;
表面有纳米杂化镀膜的微胶囊硅藻土是将微米级硅藻土加入到纳米杂化水溶液中，搅拌后逐步浓缩烘干（逐步浓缩烘干是指通过加热蒸、离心脱水的方法逐步干燥的过程），然后超微粉碎得到的；The microcapsule diatomite with nano-hybrid coating on the surface is to add micron-sized diatomite into the nano-hybrid aqueous solution, gradually concentrate and dry after stirring (gradually concentrate and dry refers to gradually drying by heating, steaming and centrifugal dehydration) process), and then obtained by superfine pulverization;
纳米杂化水溶液是由纳米杂化材料分散于水中配置得到的，纳米杂化材料为纳米石墨烯、纳米二氧化钛、纳米氧化锌和纳米氧化铝的一种以上。The nano-hybrid aqueous solution is prepared by dispersing nano-hybrid materials in water, and the nano-hybrid materials are at least one of nano-graphene, nano-titanium dioxide, nano-zinc oxide and nano-alumina.
作为优选的技术方案：As a preferred technical solution:
如上所述的一种防晒制冷聚氨酯乳液的制备方法，表面有纳米杂化镀膜的微胶囊硅藻土的制备步骤具体如下：A kind of preparation method of sunscreen refrigeration polyurethane emulsion as above, the preparation steps of the microcapsule diatomite that the surface has nano-hybrid coating film are specifically as follows:
（1）将纳米杂化材料分散到水中，超声波振荡配置得到均质的纳米杂化水溶液；(1) Disperse the nano-hybrid material in water, and ultrasonically oscillate to obtain a homogeneous nano-hybrid aqueous solution;
（2）将微米级硅藻土加入到步骤（1）配置得到均质的纳米杂化水溶液中得到混合溶液，以30~300转/分钟的转速进行搅拌，然后在120~250℃的温度下进行烘干，随着烘干纳米杂化材料失水增加，液体会越来越浓稠；在烘干的过程中不断搅拌浓缩，形成硅藻土表面纳米镀膜层，得到表面有纳米杂化镀膜的硅藻土；(2) Add micron-sized diatomaceous earth to the homogeneous nano-hybrid aqueous solution prepared in step (1) to obtain a mixed solution, stir at a speed of 30-300 rpm, and then heat it at a temperature of 120-250°C Drying, as the dehydration of the nano-hybrid material increases, the liquid will become thicker and thicker; during the drying process, it is continuously stirred and concentrated to form a nano-coating layer on the surface of diatomite, and a nano-hybrid coating on the surface is obtained. diatomaceous earth;
（3）对表面有纳米杂化镀膜的硅藻土进行超微粉碎，得到表面有纳米杂化镀膜的微胶囊硅藻土；表面有纳米杂化镀膜的微胶囊硅藻土的粒径为3μm以下；超微粉碎采用常州立马干燥科技有限公司的纳米研磨机，把待粉料通过加料口加入，在出料口收集粉碎后的粉体，经过8500目网筛后得到的粉体就是3μm以下的纳米杂化镀膜的微胶囊硅藻土。(3) Superfinely pulverize diatomite with nano-hybrid coating on the surface to obtain microcapsule diatomite with nano-hybrid coating on the surface; the particle size of micro-capsule diatomite with nano-hybrid coating on the surface is 3 μm The following; ultra-fine grinding adopts the nano-grinding machine of Changzhou Lima Drying Technology Co., Ltd., the powder to be fed is added through the feeding port, and the pulverized powder is collected at the discharge port, and the powder obtained after passing through a 8500-mesh screen is less than 3 μm Nano-hybrid coated microcapsules of diatomaceous earth.
如上所述的一种防晒制冷聚氨酯乳液的制备方法，步骤（1）中超声波振荡频率为25~130KHz，作为优化可以在80KHz或者100KHz两档。In the above-mentioned method for preparing a sunscreen and refrigeration polyurethane emulsion, the ultrasonic oscillation frequency in step (1) is 25-130KHz , and can be optimized at two levels of 80KHz or 100KHz.
如上所述的一种防晒制冷聚氨酯乳液的制备方法，步骤（2）的混合溶液中纳米杂化材料和微米级硅藻土的总浓度为25~40wt%。In the method for preparing a sunscreen and refrigeration polyurethane emulsion as described above, the total concentration of the nano-hybrid material and micron-sized diatomaceous earth in the mixed solution in step (2) is 25-40wt%.
如上所述的一种防晒制冷聚氨酯乳液的制备方法，步骤（2）中微纳米硅藻土的粒径1~3μm。In the method for preparing a sunscreen and refrigeration polyurethane emulsion as described above, the particle size of the micro-nano diatomite in step (2) is 1-3 μm.
如上所述的一种防晒制冷聚氨酯乳液的制备方法，微米级硅藻土与纳米杂化材料的质量比为20~40:1~2。According to the above-mentioned preparation method of a sun-proof and refrigeration polyurethane emulsion, the mass ratio of micron diatomite to nano-hybrid material is 20-40:1-2.
本发明还提供如上任一项所述的方法制得的防晒制冷聚氨酯乳液的应用，用于对纺织面料进行表面涂布整理。The present invention also provides the application of the sunscreen and refrigeration polyurethane emulsion prepared by the method described in any one of the above, which is used for surface coating and finishing of textile fabrics.
作为优选的技术方案：As a preferred technical solution:
如上所述的应用，与未经表面涂布整理的纺织面料相比，采用防晒制冷聚氨酯乳液整理后的纺织面料，经过LS301隔热膜测试仪测试3分钟后隔热率增加30~80%，温度下降1.5~4℃；For the application mentioned above, compared with the textile fabrics without surface coating, the thermal insulation rate of the textile fabrics treated with sunscreen and cooling polyurethane emulsion increases by 30-80% after being tested by the LS301 thermal insulation film tester for 3 minutes. The temperature drops by 1.5~4℃;
采用防晒制冷聚氨酯乳液整理后的纺织面料的UPF值（紫外线防护系数）在80以上，具有优异的紫外屏蔽功能，而未经表面涂布整理的纺织面料的UPF值在30以下；以UPF值作为纺织面料防紫外线性能表征的指标，测试参照GB/T 18830-2009标准，面料隔绝紫外线的性能效果与UPF值成呈正比关系。The UPF value (ultraviolet protection factor) of the textile fabric finished with sunscreen refrigeration polyurethane emulsion is above 80, which has excellent ultraviolet shielding function, while the UPF value of the textile fabric without surface coating finishing is below 30; the UPF value is used as The index for the characterization of the UV protection performance of textile fabrics, the test refers to the GB/T 18830-2009 standard, and the performance effect of the fabric's UV protection is directly proportional to the UPF value.
本发明的原理是：Principle of the present invention is:
在硅藻土表面做纳米杂化镀膜处理，制得表面有纳米杂化镀膜的微胶囊硅藻土，表面有纳米杂化镀膜的微胶囊硅藻土具有很大的杂化镀膜的比表面积，这是因为原有自然成孔在50~3000nm的硅藻土具有巨大的比表面积，当硅藻土通过纳米杂化水溶液，吸附纳米杂化液体然后干燥后形成表面二次杂化纳米材料结晶，得到牢固的纳米杂化镀膜层，从而获得很大的杂化镀膜的比表面积。Nano-hybrid coating treatment is performed on the surface of diatomite to obtain microcapsule diatomite with nano-hybrid coating on the surface. The micro-capsule diatomite with nano-hybrid coating on the surface has a large specific surface area of hybrid coating. This is because the original diatomite with natural pores of 50-3000nm has a huge specific surface area. When the diatomite passes through the nano-hybridized aqueous solution, absorbs the nano-hybridized liquid and then dries to form a secondary hybridized nanomaterial crystal on the surface. A firm nano-hybrid coating layer is obtained, thereby obtaining a large specific surface area of the hybrid coating.
杂化的纳米石墨烯、纳米二氧化钛、纳米氧化锌和纳米氧化铝本身都是良好的红外和紫外屏蔽和反射材料，在未经表面涂布整理的纺织面料表面，表面有纳米杂化镀膜的微胶囊硅藻土形成涂层，可以反射和阻隔大部分阳光能量的同时，根据半波相互能量抵消的消光原理消除部分光能，形成叠加的阻隔消除光能的效果增益了对阳光光线的屏蔽和反射消除作用，从而增加了面料的防晒降温功能。Hybrid nano-graphene, nano-titanium dioxide, nano-zinc oxide and nano-alumina are all good infrared and ultraviolet shielding and reflective materials. On the surface of textile fabrics without surface coating, the microstructure of nano-hybrid coatings on the surface Capsule diatomaceous earth forms a coating, which can reflect and block most of the sunlight energy. At the same time, it eliminates part of the light energy according to the half-wave mutual energy cancellation principle of extinction, forming a superimposed barrier to eliminate the effect of light energy, which increases the shielding and protection of sunlight. Reflection elimination effect, thus increasing the sun protection and cooling function of the fabric.
太阳光谱是一种不同波长的吸收光谱。分为可见光与不可见光两部分。可见光的波长为400~760nm，散射后分为红、橙、黄、绿、青、蓝、紫7色，集中起来则为白光。不可见光，又分为两种：位于红光之外区的叫红外线，波长大于760nm，最长达5300nm；位于紫光之外区的叫紫外线，波长290~400nm。纳米杂化材料吸附在硅藻土上时，硅藻土的孔径会有缩小的纳米变化，但仍然覆盖太阳光的整个半波段区域，145~2650nm区域。The solar spectrum is an absorption spectrum of different wavelengths. Divided into two parts, visible light and invisible light. Visible light has a wavelength of 400~760nm. After scattering, it is divided into seven colors: red, orange, yellow, green, cyan, blue, and purple. When gathered together, it becomes white light. Invisible light can be divided into two types: the infrared light is located outside the red light area, with a wavelength greater than 760nm and up to 5300nm; the ultraviolet light is located outside the purple light area, with a wavelength of 290-400nm. When the nano-hybrid material is adsorbed on the diatomite, the pore size of the diatomite will be reduced by nanometers, but it still covers the entire half-band region of sunlight, 145~2650nm region.
有益效果Beneficial effect
（1）本发明的一种防晒制冷聚氨酯乳液的制备方法中，纳米杂化镀膜在原有自然成孔在50~3000nm的硅藻土的比表面形成比表面积巨大的高效的屏蔽和反射涂层面，根据半波相互能量抵消的消光原理消除部分光能，形成叠加的阻隔消除光能的效果增益了对阳光光线的屏蔽和反射消除作用，从而增加了面料的防晒降温功能；(1) In the preparation method of a sunscreen and refrigeration polyurethane emulsion of the present invention, the nano-hybrid coating forms an efficient shielding and reflective coating surface with a huge specific surface area on the specific surface of diatomite with natural pores of 50-3000 nm According to the extinction principle of half-wave mutual energy cancellation, part of the light energy is eliminated, and the effect of superimposed barrier and elimination of light energy is formed, which increases the shielding and reflection elimination of sunlight, thereby increasing the sunscreen and cooling function of the fabric;
（2）本发明的一种防晒制冷聚氨酯乳液的应用中，所使用的防晒制冷聚氨酯乳液的配方均是环保材料，可以运用到各种后整理技术中增加产品的防晒降温效果。(2) In the application of a sunscreen and refrigeration polyurethane emulsion of the present invention, the formula of the sunscreen and refrigeration polyurethane emulsion used is an environmentally friendly material, which can be applied to various finishing technologies to increase the sunscreen and cooling effect of the product.
具体实施方式Detailed ways
下面结合具体实施方式，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。The present invention will be further described below in combination with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
本发明采用的测试方法如下：The test method that the present invention adopts is as follows:
UPF值：参照GB/T 18830-2009标准测试，面料隔绝紫外线的性能效果与UPF值成呈正比关系。UPF value: According to the GB/T 18830-2009 standard test, the performance effect of the fabric to block ultraviolet rays is directly proportional to the UPF value.
隔热率：采用LS301隔热膜测试仪进行测试，参照《ISO 3270-1984 色漆和清漆及其原料 调节及试验的温度和湿度》方法。Heat insulation rate: LS301 heat insulation film tester is used for testing, referring to the method of "ISO 3270-1984 Paints and varnishes and their raw materials - Conditioning and testing temperature and humidity".
本发明采用的物质如下：The material that the present invention adopts is as follows:
纳米石墨烯：上海杳田新材料科技有限公司，货号YT-Y-01-1（20nm黑色球形）；Nanographene: Shanghai Yaotian New Material Technology Co., Ltd., article number YT-Y-01-1 (20nm black spherical shape);
纳米二氧化钛：达西浓纳米科技（常州）有限公司，达西浓100nm锐钛型二氧化钛粉末；Nano-titanium dioxide: Daxiong Nano Technology (Changzhou) Co., Ltd., Daxiong 100nm anatase titanium dioxide powder;
纳米氧化锌：达西浓纳米科技（常州）有限公司，DXN-HQ20W达西浓50nm纳米氧化锌；Nano Zinc Oxide: Darcy Concent Nanotechnology (Changzhou) Co., Ltd., DXN-HQ20W Darcy Concent 50nm Nano Zinc Oxide;
纳米氧化铝：东莞东超新材料科技有限公司，包装规格DCA-300N（300纳米）；Nano-alumina: Dongguan Dongchao New Material Technology Co., Ltd., packaging specification DCA-300N (300 nanometers);
微米级硅藻土：灵寿县旭诚矿产品加工厂，货号XC-GZHB2。Micron-sized diatomite: Lingshou County Xucheng Mineral Products Processing Factory, item number XC-GZHB2.
面料：品名本白色涤丝纺，成分及含量100%涤纶，克重60g/m2。Fabric: The product name is white polyester spinning, the composition and content are 100% polyester, and the weight is 60g/m 2 .
水性固含量为50%的聚氨酯乳液或者是其他可用于涂布的聚氨酯乳液。Water-based polyurethane emulsion with a solid content of 50% or other polyurethane emulsions that can be used for coating.
实施例1Example 1
一种防晒制冷的聚氨酯乳液的制备方法，具体步骤如下：A kind of preparation method of the polyurethane emulsion of sunscreen refrigeration, concrete steps are as follows:
（1）原料的准备：(1) Preparation of raw materials:
纳米杂化材料：纳米石墨烯、纳米二氧化钛、纳米氧化锌和纳米氧化铝；Nano-hybrid materials: nano-graphene, nano-titanium dioxide, nano-zinc oxide and nano-alumina;
粒径为1~3μm的微米级硅藻土；Micron-sized diatomite with a particle size of 1~3μm;
聚氨酯乳液；polyurethane emulsion;
（2）将4种纳米杂化材料等份分散到水中，以80KHz的频率超声波振荡配置得到均质的浓度为1%的纳米杂化水溶液；(2) Disperse 4 kinds of nano-hybrid materials into water in equal parts, and configure them with ultrasonic oscillation at a frequency of 80KHz to obtain a homogeneous nano-hybrid aqueous solution with a concentration of 1%.
（3）将微米级硅藻土加入到步骤（2）配置得到的均质的纳米杂化水溶液中得到混合溶液，以30转/分钟的转速进行搅拌，然后在120℃的温度下进行烘干，在烘干的过程中不断搅拌浓缩，得到表面有纳米杂化镀膜的硅藻土；(3) Add micron-sized diatomaceous earth to the homogeneous nano-hybrid aqueous solution prepared in step (2) to obtain a mixed solution, stir at a speed of 30 rpm, and then dry at a temperature of 120°C , continuously stirring and concentrating during the drying process to obtain diatomite with a nano-hybrid coating on the surface;
其中，微米级硅藻土与纳米杂化材料的质量比为25:1.5；混合溶液中纳米杂化材料和微米级硅藻土的总浓度为20wt%；Wherein, the mass ratio of micron diatomite and nano hybrid material is 25:1.5; the total concentration of nano hybrid material and micron diatom earth in the mixed solution is 20wt%;
（4）对表面有纳米杂化镀膜的硅藻土进行超微粉碎，得到粒径为3μm以下的表面有纳米杂化镀膜的微胶囊硅藻土；(4) Superfinely pulverize diatomite with nano-hybrid coating on the surface to obtain microcapsule diatomite with nano-hybrid coating on the surface with a particle size of less than 3 μm;
（5）将表面有纳米杂化镀膜的微胶囊硅藻土添加到聚氨酯乳液中，搅拌和超声波振荡配置得到防晒制冷的聚氨酯乳液；(5) Add microcapsule diatomite with nano-hybrid coating on the surface to polyurethane emulsion, stir and ultrasonically oscillate to obtain polyurethane emulsion for sun protection and refrigeration;
其中，表面有纳米杂化镀膜的微胶囊硅藻土和聚氨酯乳液的质量比为10:100。Wherein, the mass ratio of microcapsule diatomite with nano-hybrid coating film on the surface and polyurethane emulsion is 10:100.
将制得的防晒制冷聚氨酯乳液用于对纺织面料进行表面涂布整理，涂膜厚度为5μm。与未经表面涂布整理的纺织面料相比，采用防晒制冷聚氨酯乳液整理后的纺织面料，经过LS301隔热膜测试仪测试3分钟后隔热率增加60%，温度下降3℃；采用防晒制冷聚氨酯乳液整理后的纺织面料的UPF值为268，而未经表面涂布整理的纺织面料的UPF值为15。The prepared sunscreen refrigeration polyurethane emulsion was used for surface coating and finishing of textile fabrics, and the thickness of the coating film was 5 μm. Compared with the textile fabrics without surface coating finishing, the textile fabrics treated with sunscreen refrigeration polyurethane emulsion, after 3 minutes of testing by LS301 heat insulation film tester, the heat insulation rate increased by 60%, and the temperature dropped by 3°C; The UPF value of the textile fabric finished with polyurethane emulsion is 268, while the UPF value of the textile fabric without surface coating finishing is 15.
对比例1Comparative example 1
一种聚氨酯乳液的制备方法，基本同实施例1，不同之处在于省略步骤（1）~（4），步骤（5）中将相同质量的纳米杂化材料替代表面有纳米杂化镀膜的微胶囊硅藻土，添加到聚氨酯乳液中，搅拌和超声波振荡配置得到防晒制冷的聚氨酯乳液。A method for preparing a polyurethane emulsion, which is basically the same as in Example 1, except that steps (1) to (4) are omitted, and in step (5), nano-hybrid materials of the same quality are substituted for micro-particles with nano-hybrid coatings on the surface. Capsules of diatomaceous earth are added to the polyurethane emulsion, stirred and ultrasonically oscillated to obtain a sunscreen and cooling polyurethane emulsion.
制得的聚氨酯乳液用于对纺织面料进行表面相同工艺涂布整理，涂膜厚度为5μm。与未经表面涂布整理的纺织面料相比，采用聚氨酯乳液整理后的纺织面料，经过LS301隔热膜测试仪测试3分钟后隔热率增加35%，温度下降1.5℃；采用防晒制冷聚氨酯乳液整理后的纺织面料的UPF值为51。The prepared polyurethane emulsion is used for coating and finishing the surface of the textile fabric with the same process, and the thickness of the coating film is 5 μm. Compared with the textile fabrics without surface coating finishing, the textile fabrics treated with polyurethane emulsion, after being tested by LS301 heat insulation film tester for 3 minutes, the heat insulation rate increased by 35%, and the temperature dropped by 1.5°C; the polyurethane emulsion used for sun protection and refrigeration The UPF value of the finished textile fabric is 51.
将实施例1与对比例1对比，可以发现对比例1有防晒降温效果，但是比实施例1的效果相差很大，这是因为同样浓度的纳米材料也有很好的隔绝和反射光线作用，但是实施例1有更大的防晒降温的比表面积增加了反射面，同时因为硅藻土的内部空腔静止空气很多先天具有很好的隔热效果和半波消光能效果。Comparing Example 1 with Comparative Example 1, it can be found that Comparative Example 1 has a sunscreen and cooling effect, but the effect is much different than that of Example 1. This is because the same concentration of nanomaterials also has a good effect of isolating and reflecting light, but Example 1 has a larger specific surface area for sun protection and cooling and increases the reflective surface. At the same time, because the inner cavity of diatomite has a lot of static air, it has a good heat insulation effect and half-wave extinction effect.
对比例2Comparative example 2
一种聚氨酯乳液的制备方法，基本同实施例1，不同之处在于省略步骤（1）~（4），步骤（5）中将相同质量的硅藻土替代表面有纳米杂化镀膜的微胶囊硅藻土，添加到聚氨酯乳液中，搅拌和超声波振荡配置得到防晒制冷的聚氨酯乳液。A method for preparing a polyurethane emulsion, which is basically the same as in Example 1, except that steps (1) to (4) are omitted, and in step (5), diatomite of the same quality is substituted for microcapsules with nano-hybrid coating on the surface Add diatomaceous earth into the polyurethane emulsion, stir and ultrasonically oscillate to obtain the polyurethane emulsion for sun protection and refrigeration.
制得的聚氨酯乳液用于对纺织面料进行表面涂布整理。与未经表面涂布整理的纺织面料相比，采用聚氨酯乳液整理后的纺织面料，经过LS301隔热膜测试仪测试3分钟后隔热率增加40%，温度下降2℃；采用防晒制冷聚氨酯乳液整理后的纺织面料的UPF值为41。The prepared polyurethane emulsion is used for surface coating and finishing of textile fabrics. Compared with the textile fabrics without surface coating finishing, the textile fabrics finished with polyurethane emulsion, after being tested by LS301 heat insulation film tester for 3 minutes, the heat insulation rate increased by 40%, and the temperature dropped by 2°C; the polyurethane emulsion used for sun protection and refrigeration The UPF value of the finished textile fabric is 41.
将实施例1与对比例2对比，可以发现纳米杂化材料和硅藻土均有降温和抗紫外作用，这是因为采用的纳米材料本身就有抗紫外作用，硅藻土也有抗紫外作用和隔热作用，但是当硅藻土镀膜后反射、隔热和消光作用叠加和增强的复合作用隔热和降温消除紫外的作用更加明显。Comparing Example 1 with Comparative Example 2, it can be found that the nano-hybrid material and diatomaceous earth all have cooling and anti-ultraviolet effects, and this is because the nanomaterials used have anti-ultraviolet effects themselves, and diatomite also has anti-ultraviolet effects and anti-ultraviolet effects. Heat insulation effect, but when diatomite is coated, the effect of reflection, heat insulation and extinction is superimposed and enhanced, and the effect of heat insulation and cooling to eliminate ultraviolet rays is more obvious.
对比例3Comparative example 3
一种聚氨酯乳液的制备方法，基本同实施例1，不同之处仅在于省略步骤（1）~（4），步骤（5）中将硅藻土和纳米杂化材料的混合物替代表面有纳米杂化镀膜的微胶囊硅藻土（硅藻土和纳米杂化材料的添加量和实施例1的使用量相同），添加到聚氨酯乳液中，搅拌和超声波振荡配置得到防晒制冷的聚氨酯乳液。A method for preparing a polyurethane emulsion, which is basically the same as in Example 1, except that steps (1) to (4) are omitted, and in step (5), a mixture of diatomaceous earth and nano-hybrid materials is used instead of nano-hybrid materials on the surface. The coated microcapsule diatomite (the amount of diatomite and nano-hybrid material added is the same as that in Example 1), was added to the polyurethane emulsion, stirred and ultrasonically oscillated to obtain a polyurethane emulsion for sun protection and refrigeration.
制得的聚氨酯乳液用于对纺织面料进行表面涂布整理。与未经表面涂布整理的纺织面料相比，采用聚氨酯乳液整理后的纺织面料，经过LS301隔热膜测试仪测试3分钟后隔热率增加50%，温度下降2.5℃；采用聚氨酯乳液整理后的纺织面料的UPF值为82。The prepared polyurethane emulsion is used for surface coating and finishing of textile fabrics. Compared with the textile fabrics without surface coating, the thermal insulation rate of the textile fabrics treated with polyurethane emulsion increased by 50% and the temperature dropped by 2.5°C after being tested by the LS301 heat insulation film tester for 3 minutes; The UPF value of the textile fabric is 82.
将实施例1与对比例3对比，可以发现对比例3有很好的抗紫外作用但是比纳米杂化镀膜的要差一些，这是因为纳米材料是随机分布在聚氨酯材料中，可能会有部分吸附在硅藻土表面但是形成镀膜反射的比例很小；主要的隔热和降温还是呈现在各自材料的本能反应结果。Comparing Example 1 with Comparative Example 3, it can be found that Comparative Example 3 has a good anti-ultraviolet effect but is worse than that of the nano-hybrid coating. This is because the nano-materials are randomly distributed in the polyurethane material, and there may be some Adsorbed on the surface of diatomite but the proportion of coating reflection is very small; the main heat insulation and cooling are the results of the instinctive reaction of the respective materials.
实施例2Example 2
一种防晒制冷的聚氨酯乳液的制备方法，具体步骤如下：A kind of preparation method of the polyurethane emulsion of sunscreen refrigeration, concrete steps are as follows:
（1）原料的准备：(1) Preparation of raw materials:
纳米杂化材料：纳米石墨烯、纳米二氧化钛、纳米氧化锌和纳米氧化铝；Nano-hybrid materials: nano-graphene, nano-titanium dioxide, nano-zinc oxide and nano-alumina;
粒径为1~3μm的微米级硅藻土；Micron-sized diatomite with a particle size of 1~3μm;
聚氨酯乳液；polyurethane emulsion;
（2）将4种纳米杂化材料等份分散到水中，以100KHz的频率超声波振荡配置得到均质的浓度为1%的纳米杂化水溶液；(2) Disperse 4 kinds of nano-hybrid materials in equal parts in water, and configure them with ultrasonic oscillation at a frequency of 100KHz to obtain a homogeneous nano-hybrid aqueous solution with a concentration of 1%.
（3）将微米级硅藻土加入到步骤（2）配置得到的均质的纳米杂化水溶液中得到混合溶液，以50转/分钟的转速进行搅拌，然后在150℃的温度下进行烘干，通过不断搅拌浓缩，得到表面有纳米杂化镀膜的硅藻土；(3) Add micron-sized diatomaceous earth to the homogeneous nano-hybrid aqueous solution prepared in step (2) to obtain a mixed solution, stir at a speed of 50 rpm, and then dry at a temperature of 150°C , through continuous stirring and concentration, diatomite with nano-hybrid coating film on the surface is obtained;
其中，微米级硅藻土与纳米杂化材料的质量比为30:1.5；混合溶液中纳米杂化材料和微米级硅藻土的总浓度为23wt%；Wherein, the mass ratio of micron diatomite and nano hybrid material is 30:1.5; the total concentration of nano hybrid material and micron diatom earth in the mixed solution is 23wt%;
（4）对表面有纳米杂化镀膜的硅藻土进行超微粉碎，得到粒径为3μm以下的表面有纳米杂化镀膜的微胶囊硅藻土；(4) Superfinely pulverize diatomite with nano-hybrid coating on the surface to obtain microcapsule diatomite with nano-hybrid coating on the surface with a particle size of less than 3 μm;
（5）将表面有纳米杂化镀膜的微胶囊硅藻土添加到聚氨酯乳液中，搅拌和超声波振荡配置得到防晒制冷的聚氨酯乳液；(5) Add microcapsule diatomite with nano-hybrid coating on the surface to polyurethane emulsion, stir and ultrasonically oscillate to obtain polyurethane emulsion for sun protection and refrigeration;
其中，表面有纳米杂化镀膜的微胶囊硅藻土和聚氨酯乳液的质量比为5:100。Among them, the mass ratio of microcapsule diatomite with nano-hybrid coating on the surface and polyurethane emulsion is 5:100.
将制得的防晒制冷聚氨酯乳液用于对纺织面料进行表面涂布整理，涂膜厚度为5μm。与未经表面涂布整理的纺织面料相比，采用防晒制冷聚氨酯乳液整理后的纺织面料，经过LS301隔热膜测试仪测试3分钟后隔热率增加30%，温度下降1.5℃；采用防晒制冷聚氨酯乳液整理后的纺织面料的UPF值为80，而未经表面涂布整理的纺织面料的UPF值为15。The prepared sunscreen refrigeration polyurethane emulsion was used for surface coating and finishing of textile fabrics, and the thickness of the coating film was 5 μm. Compared with the textile fabrics without surface coating finishing, the textile fabrics finished with sunscreen refrigeration polyurethane emulsion, after being tested by LS301 heat insulation film tester for 3 minutes, the heat insulation rate increased by 30%, and the temperature dropped by 1.5℃; The UPF value of the textile fabric finished with polyurethane emulsion is 80, while the UPF value of the textile fabric without surface coating finishing is 15.
实施例3Example 3
一种防晒制冷的聚氨酯乳液的制备方法，具体步骤如下：A kind of preparation method of the polyurethane emulsion of sunscreen refrigeration, concrete steps are as follows:
（1）原料的准备：(1) Preparation of raw materials:
纳米杂化材料：纳米石墨烯、纳米二氧化钛、纳米氧化锌和纳米氧化铝；Nano-hybrid materials: nano-graphene, nano-titanium dioxide, nano-zinc oxide and nano-alumina;
粒径为1~3μm的微米级硅藻土；Micron-sized diatomite with a particle size of 1~3μm;
聚氨酯乳液；polyurethane emulsion;
（2）将4种纳米杂化材料等份分散到水中，以80KHz的频率超声波振荡配置得到均质的浓度为1.5%的纳米杂化水溶液；(2) Disperse 4 kinds of nano-hybrid materials into water in equal parts, and configure them with ultrasonic oscillation at a frequency of 80KHz to obtain a homogeneous nano-hybrid aqueous solution with a concentration of 1.5%;
（3）将微米级硅藻土加入到步骤（2）配置得到的均质的纳米杂化水溶液中得到混合溶液，以100转/分钟的转速进行搅拌，然后在180℃的温度下进行烘干，在烘干的过程中不断搅拌浓缩，得到表面有纳米杂化镀膜的硅藻土；(3) Add micron-sized diatomaceous earth to the homogeneous nano-hybrid aqueous solution prepared in step (2) to obtain a mixed solution, stir at a speed of 100 rpm, and then dry at a temperature of 180°C , continuously stirring and concentrating during the drying process to obtain diatomite with a nano-hybrid coating on the surface;
其中，微米级硅藻土与纳米杂化材料的质量比为30:1.5；混合溶液中纳米杂化材料和微米级硅藻土的总浓度为24wt%；Wherein, the mass ratio of micron diatomite and nano-hybrid material is 30:1.5; the total concentration of nano-hybrid material and micron-diatom earth in the mixed solution is 24wt%;
（4）对表面有纳米杂化镀膜的硅藻土进行超微粉碎，得到粒径为3μm以下的表面有纳米杂化镀膜的微胶囊硅藻土；(4) Superfinely pulverize diatomite with nano-hybrid coating on the surface to obtain microcapsule diatomite with nano-hybrid coating on the surface with a particle size of less than 3 μm;
（5）将表面有纳米杂化镀膜的微胶囊硅藻土添加到聚氨酯乳液中，搅拌和超声波振荡配置得到防晒制冷的聚氨酯乳液；(5) Add microcapsule diatomite with nano-hybrid coating on the surface to polyurethane emulsion, stir and ultrasonically oscillate to obtain polyurethane emulsion for sun protection and refrigeration;
其中，表面有纳米杂化镀膜的微胶囊硅藻土和聚氨酯乳液的质量比为12:100。Wherein, the mass ratio of microcapsule diatomite with nano-hybrid coating film on the surface and polyurethane emulsion is 12:100.
将制得的防晒制冷聚氨酯乳液用于对纺织面料进行表面涂布整理，涂膜厚度为5μm。与未经表面涂布整理的纺织面料相比，采用防晒制冷聚氨酯乳液整理后的纺织面料，经过LS301隔热膜测试仪测试3分钟后隔热率增加60%，温度下降3℃；采用防晒制冷聚氨酯乳液整理后的纺织面料的UPF值为275，而未经表面涂布整理的纺织面料的UPF值为15。The prepared sunscreen refrigeration polyurethane emulsion was used for surface coating and finishing of textile fabrics, and the thickness of the coating film was 5 μm. Compared with the textile fabrics without surface coating finishing, the textile fabrics treated with sunscreen refrigeration polyurethane emulsion, after 3 minutes of testing by LS301 heat insulation film tester, the heat insulation rate increased by 60%, and the temperature dropped by 3°C; The UPF value of the textile fabric finished with polyurethane emulsion is 275, while the UPF value of the textile fabric finished without surface coating is 15.
实施例4Example 4
一种防晒制冷的聚氨酯乳液的制备方法，具体步骤如下：A kind of preparation method of the polyurethane emulsion of sunscreen refrigeration, concrete steps are as follows:
（1）原料的准备：(1) Preparation of raw materials:
纳米杂化材料：纳米石墨烯、纳米二氧化钛、纳米氧化锌和纳米氧化铝；Nano-hybrid materials: nano-graphene, nano-titanium dioxide, nano-zinc oxide and nano-alumina;
粒径为1~3μm的微米级硅藻土；Micron-sized diatomite with a particle size of 1~3μm;
聚氨酯乳液；polyurethane emulsion;
（2）将4种纳米杂化材料等份分散到水中，以100KHz的频率超声波振荡配置得到均质的浓度为1.5%的纳米杂化水溶液；(2) Disperse 4 kinds of nano-hybrid materials in equal parts in water, and configure them with ultrasonic oscillation at a frequency of 100KHz to obtain a homogeneous nano-hybrid aqueous solution with a concentration of 1.5%;
（3）将微米级硅藻土加入到步骤（2）配置得到的均质的纳米杂化水溶液中得到混合溶液，以200转/分钟的转速进行搅拌，然后在200℃的温度下进行烘干，在烘干的过程中不断搅拌浓缩，得到表面有纳米杂化镀膜的硅藻土；(3) Add micron-sized diatomaceous earth to the homogeneous nano-hybrid aqueous solution prepared in step (2) to obtain a mixed solution, stir at a speed of 200 rpm, and then dry at a temperature of 200°C , continuously stirring and concentrating during the drying process to obtain diatomite with a nano-hybrid coating on the surface;
其中，微米级硅藻土与纳米杂化材料的质量比为35:2；混合溶液中纳米杂化材料和微米级硅藻土的总浓度为26.5wt%；Wherein, the mass ratio of micron diatomite and nano-hybrid material is 35:2; the total concentration of nano-hybrid material and micron-diatom earth in the mixed solution is 26.5wt%;
（4）对表面有纳米杂化镀膜的硅藻土进行超微粉碎，得到粒径为3μm以下的表面有纳米杂化镀膜的微胶囊硅藻土；(4) Superfinely pulverize diatomite with nano-hybrid coating on the surface to obtain microcapsule diatomite with nano-hybrid coating on the surface with a particle size of less than 3 μm;
（5）将表面有纳米杂化镀膜的微胶囊硅藻土添加到聚氨酯乳液中，搅拌和超声波振荡配置得到防晒制冷的聚氨酯乳液；(5) Add microcapsule diatomite with nano-hybrid coating on the surface to polyurethane emulsion, stir and ultrasonically oscillate to obtain polyurethane emulsion for sun protection and refrigeration;
其中，表面有纳米杂化镀膜的微胶囊硅藻土和聚氨酯乳液的质量比为15:100。Wherein, the mass ratio of microcapsule diatomite with nano-hybrid coating on the surface and polyurethane emulsion is 15:100.
将制得的防晒制冷聚氨酯乳液用于对纺织面料进行表面涂布整理，涂膜厚度为5μm。与未经表面涂布整理的纺织面料相比，采用防晒制冷聚氨酯乳液整理后的纺织面料，经过LS301隔热膜测试仪测试3分钟后隔热率增加65%，温度下降3.5℃；采用防晒制冷聚氨酯乳液整理后的纺织面料的UPF值为410，而未经表面涂布整理的纺织面料的UPF值为15。The prepared sunscreen refrigeration polyurethane emulsion was used for surface coating and finishing of textile fabrics, and the thickness of the coating film was 5 μm. Compared with the textile fabrics without surface coating finishing, the textile fabrics finished with sunscreen refrigeration polyurethane emulsion, after being tested by LS301 heat insulation film tester for 3 minutes, the heat insulation rate increased by 65%, and the temperature dropped by 3.5℃; The UPF value of the textile fabric finished with polyurethane emulsion is 410, while the UPF value of the textile fabric without surface coating finishing is 15.
实施例5Example 5
一种防晒制冷的聚氨酯乳液的制备方法，具体步骤如下：A kind of preparation method of the polyurethane emulsion of sunscreen refrigeration, concrete steps are as follows:
（1）原料的准备：(1) Preparation of raw materials:
纳米杂化材料：纳米石墨烯、纳米二氧化钛、纳米氧化锌和纳米氧化铝；Nano-hybrid materials: nano-graphene, nano-titanium dioxide, nano-zinc oxide and nano-alumina;
粒径为1~3μm的微米级硅藻土；Micron-sized diatomite with a particle size of 1~3μm;
聚氨酯乳液；polyurethane emulsion;
（2）将4种纳米杂化材料等份分散到水中，以25KHz的频率超声波振荡配置得到均质的浓度为2%的纳米杂化水溶液；(2) Disperse 4 kinds of nano-hybrid materials into water in equal parts, and configure them with ultrasonic oscillation at a frequency of 25KHz to obtain a homogeneous nano-hybrid aqueous solution with a concentration of 2%;
（3）将微米级硅藻土加入到步骤（2）配置得到的均质的纳米杂化水溶液中得到混合溶液，以250转/分钟的转速进行搅拌，然后在230℃的温度下进行烘干，在烘干的过程中不断搅拌浓缩，得到表面有纳米杂化镀膜的硅藻土；(3) Add micron-sized diatomaceous earth to the homogeneous nano-hybrid aqueous solution prepared in step (2) to obtain a mixed solution, stir at a speed of 250 rpm, and then dry at a temperature of 230°C , continuously stirring and concentrating during the drying process to obtain diatomite with a nano-hybrid coating on the surface;
其中，微米级硅藻土与纳米杂化材料的质量比为25:1.5；混合溶液中纳米杂化材料和微米级硅藻土的总浓度为20wt%；Wherein, the mass ratio of micron diatomite and nano hybrid material is 25:1.5; the total concentration of nano hybrid material and micron diatom earth in the mixed solution is 20wt%;
（4）对表面有纳米杂化镀膜的硅藻土进行超微粉碎，得到粒径为3μm以下的表面有纳米杂化镀膜的微胶囊硅藻土；(4) Superfinely pulverize diatomite with nano-hybrid coating on the surface to obtain microcapsule diatomite with nano-hybrid coating on the surface with a particle size of less than 3 μm;
（5）将表面有纳米杂化镀膜的微胶囊硅藻土添加到聚氨酯乳液中，搅拌和超声波振荡配置得到防晒制冷的聚氨酯乳液；(5) Add microcapsule diatomite with nano-hybrid coating on the surface to polyurethane emulsion, stir and ultrasonically oscillate to obtain polyurethane emulsion for sun protection and refrigeration;
其中，表面有纳米杂化镀膜的微胶囊硅藻土和聚氨酯乳液的质量比为20:100。Among them, the mass ratio of microcapsule diatomite with nano-hybrid coating on the surface and polyurethane emulsion is 20:100.
将制得的防晒制冷聚氨酯乳液用于对纺织面料进行表面涂布整理，涂膜厚度为5μm。与未经表面涂布整理的纺织面料相比，采用防晒制冷聚氨酯乳液整理后的纺织面料，经过LS301隔热膜测试仪测试3分钟后隔热率增加70%，温度下降3.5℃；采用防晒制冷聚氨酯乳液整理后的纺织面料的UPF值为760，而未经表面涂布整理的纺织面料的UPF值为15。The prepared sunscreen refrigeration polyurethane emulsion was used for surface coating and finishing of textile fabrics, and the thickness of the coating film was 5 μm. Compared with the textile fabrics without surface coating finishing, the textile fabrics finished with sunscreen refrigeration polyurethane emulsion, after being tested by LS301 heat insulation film tester for 3 minutes, the heat insulation rate increased by 70%, and the temperature dropped by 3.5°C; The UPF value of the textile fabric finished with polyurethane emulsion is 760, while the UPF value of the textile fabric finished without surface coating is 15.
实施例6Example 6
一种防晒制冷的聚氨酯乳液的制备方法，具体步骤如下：A kind of preparation method of the polyurethane emulsion of sunscreen refrigeration, concrete steps are as follows:
（1）原料的准备：(1) Preparation of raw materials:
纳米杂化材料：纳米石墨烯、纳米二氧化钛、纳米氧化锌和纳米氧化铝；Nano-hybrid materials: nano-graphene, nano-titanium dioxide, nano-zinc oxide and nano-alumina;
粒径为1~3μm的微米级硅藻土；Micron-sized diatomite with a particle size of 1~3μm;
聚氨酯乳液；polyurethane emulsion;
（2）将4种纳米杂化材料等份分散到水中，以130KHz的频率超声波振荡配置得到均质的浓度为2%的纳米杂化水溶液；(2) Disperse 4 kinds of nano-hybrid materials in water in equal parts, and configure them with ultrasonic oscillation at a frequency of 130KHz to obtain a homogeneous nano-hybrid aqueous solution with a concentration of 2%;
（3）将微米级硅藻土加入到步骤（2）配置得到的均质的纳米杂化水溶液中得到混合溶液，以300转/分钟的转速进行搅拌，然后在250℃的温度下进行烘干，在烘干的过程中不断搅拌浓缩，得到表面有纳米杂化镀膜的硅藻土；(3) Add micron-sized diatomite to the homogeneous nano-hybrid aqueous solution prepared in step (2) to obtain a mixed solution, stir at a speed of 300 rpm, and then dry at a temperature of 250°C , continuously stirring and concentrating during the drying process to obtain diatomite with a nano-hybrid coating on the surface;
其中，微米级硅藻土与纳米杂化材料的质量比为30:1.2；混合溶液中纳米杂化材料和微米级硅藻土的总浓度为24wt%；Wherein, the mass ratio of micron diatomite and nano-hybrid material is 30:1.2; the total concentration of nano-hybrid material and micron-diatom earth in the mixed solution is 24wt%;
（4）对表面有纳米杂化镀膜的硅藻土进行超微粉碎，得到粒径为3μm以下的表面有纳米杂化镀膜的微胶囊硅藻土；(4) Superfinely pulverize diatomite with nano-hybrid coating on the surface to obtain microcapsule diatomite with nano-hybrid coating on the surface with a particle size of less than 3 μm;
（5）将表面有纳米杂化镀膜的微胶囊硅藻土添加到聚氨酯乳液中，搅拌和超声波振荡配置得到防晒制冷的聚氨酯乳液；(5) Add microcapsule diatomite with nano-hybrid coating on the surface to polyurethane emulsion, stir and ultrasonically oscillate to obtain polyurethane emulsion for sun protection and refrigeration;
其中，表面有纳米杂化镀膜的微胶囊硅藻土和聚氨酯乳液的质量比为25:100。Wherein, the mass ratio of microcapsule diatomite with nano-hybrid coating film on the surface and polyurethane emulsion is 25:100.
将制得的防晒制冷聚氨酯乳液用于对纺织面料进行表面涂布整理，涂膜厚度为5μm。与未经表面涂布整理的纺织面料相比，采用防晒制冷聚氨酯乳液整理后的纺织面料，经过LS301隔热膜测试仪测试3分钟后隔热率增加80%，温度下降4℃；采用防晒制冷聚氨酯乳液整理后的纺织面料的UPF值为1110，而未经表面涂布整理的纺织面料的UPF值为15。The prepared sunscreen refrigeration polyurethane emulsion was used for surface coating and finishing of textile fabrics, and the thickness of the coating film was 5 μm. Compared with the textile fabrics without surface coating finishing, the textile fabrics finished with sunscreen refrigeration polyurethane emulsion, after being tested by LS301 heat insulation film tester for 3 minutes, the heat insulation rate increased by 80%, and the temperature dropped by 4°C; The UPF value of the textile fabric treated with polyurethane emulsion is 1110, while the UPF value of the textile fabric without surface coating is 15.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117127419A (en) * | 2023-10-26 | 2023-11-28 | 吴江市汉塔纺织整理有限公司 | Cooling sun-proof fabric and preparation method thereof |
| CN117127419B (en) * | 2023-10-26 | 2024-02-02 | 吴江市汉塔纺织整理有限公司 | Cooling sun-proof fabric and preparation method thereof |
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| CN116657414B (en) | 2023-10-24 |
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Denomination of invention: A preparation method and application of a sun protection cooling polyurethane emulsion Granted publication date: 20231024 Pledgee: Industrial and Commercial Bank of China Limited Suzhou Yangtze River Delta integration Demonstration Zone Branch Pledgor: WUJIANG HANTA TEXTILE FINISHING Co.,Ltd. Registration number: Y2025980055100 |