CN105803784A - Method for preparing functional cotton fabric by assembling phytic acid with positive ion polyelectrolyte layer by layer - Google Patents
Method for preparing functional cotton fabric by assembling phytic acid with positive ion polyelectrolyte layer by layer Download PDFInfo
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 35
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 title claims abstract description 26
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 235000002949 phytic acid Nutrition 0.000 title claims abstract description 26
- 229940068041 phytic acid Drugs 0.000 title claims abstract description 26
- 239000000467 phytic acid Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 11
- 229920000867 polyelectrolyte Polymers 0.000 title claims abstract description 6
- 239000004744 fabric Substances 0.000 title abstract description 23
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007864 aqueous solution Substances 0.000 claims abstract description 15
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 6
- 125000002091 cationic group Chemical group 0.000 claims abstract description 5
- 229920002518 Polyallylamine hydrochloride Polymers 0.000 abstract description 13
- 229920000767 polyaniline Polymers 0.000 abstract description 7
- 238000000707 layer-by-layer assembly Methods 0.000 abstract description 6
- 238000011065 in-situ storage Methods 0.000 abstract description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003063 flame retardant Substances 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000003463 adsorbent Substances 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 206010000234 Abortion spontaneous Diseases 0.000 description 1
- 102000053602 DNA Human genes 0.000 description 1
- 108020004414 DNA Proteins 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000000349 chromosome Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 210000000805 cytoplasm Anatomy 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 208000032839 leukemia Diseases 0.000 description 1
- 210000002751 lymph Anatomy 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 230000003169 placental effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000083 poly(allylamine) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 208000000995 spontaneous abortion Diseases 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/282—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
- D06M13/292—Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/356—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
- D06M15/3562—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms containing nitrogen
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/61—Polyamines polyimines
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/30—Flame or heat resistance, fire retardancy properties
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- Engineering & Computer Science (AREA)
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
本发明提供了一种利用阳离子聚电解质聚烯丙基胺盐酸盐层层组装植酸制备功能棉织物的方法，该方法包括如下步骤：（1）将聚烯丙基胺盐酸盐溶解于50mL水中，加入棉布，室温下浸泡30min，取出并烘干；（2）将上述处理的棉布置于植酸水溶液中，室温下浸泡30min，取出并烘干；（3）反复步骤（1）、（2）数次；（4）冷却至0‑5ºC，加入苯胺；（5）缓慢滴加过硫酸铵水溶液，滴完后静置30min；（6）将上述处理后的棉织物取出，水洗、烘干。本制备技术是将聚烯丙基胺盐酸盐作为植酸吸附剂，将植酸通过层层组装富集在棉纤维表面，以此为基础将苯胺原位聚合在棉纤维表面，使棉织物具有导电和阻燃性能；将聚烯丙基胺盐酸盐与植酸的层层组装技术与聚苯胺原位化学合成技术相结合，增加了植酸的耐洗性，提高了棉织物导电、阻燃的稳定性和持久性。The invention provides a method for preparing functional cotton fabrics by using cationic polyelectrolyte polyallylamine hydrochloride to assemble phytic acid layer by layer. The method comprises the following steps: (1) dissolving polyallylamine hydrochloride in Add cotton cloth to 50mL water, soak it for 30min at room temperature, take it out and dry it; (2) Arrange the cotton treated above in phytic acid aqueous solution, soak it at room temperature for 30mins, take it out and dry it; (3) Repeat steps (1), (2) Several times; (4) Cool to 0‑5ºC, add aniline; (5) Slowly add ammonium persulfate aqueous solution, and let it stand for 30 minutes after dripping; (6) Take out the cotton fabric after the above treatment, wash, drying. This preparation technology uses polyallylamine hydrochloride as a phytic acid adsorbent, enriches phytic acid on the surface of cotton fibers through layer-by-layer assembly, and based on this, in-situ polymerizes aniline on the surface of cotton fibers to make cotton fabrics It has electrical conductivity and flame retardancy; combining the layer-by-layer assembly technology of polyallylamine hydrochloride and phytic acid with the in-situ chemical synthesis technology of polyaniline increases the washability of phytic acid and improves the electrical conductivity of cotton fabrics. Flame retardant stability and durability.
Description
技术领域 technical field
本发明涉及一种功能棉织物制备方法，尤其是一种利用阳离子聚电解质聚烯丙基胺盐酸盐层层组装植酸制备功能棉织物的方法。 The invention relates to a method for preparing functional cotton fabrics, in particular to a method for preparing functional cotton fabrics by using cationic polyelectrolyte polyallylamine hydrochloride to assemble phytic acid layer by layer.
背景技术 Background technique
随着科技的进步，更多的电器产品进入到人们的生活中，给人们带来了电磁污染，称为继空气污染、水污染和噪声污染之后的第四大污染。人体被过量的电磁波辐照后，血液、淋巴液和细胞原生质会发生变化，造成细胞内的脱氧核糖核酸受损和遗传基因发生突变而畸形，进而诱发白血病和肿瘤，还会引起胎盘染色体改变，导致婴儿的畸形或孕妇的自然流产。 With the advancement of science and technology, more electrical products have entered people's lives, bringing electromagnetic pollution to people, which is called the fourth largest pollution after air pollution, water pollution and noise pollution. After the human body is irradiated by excessive electromagnetic waves, the blood, lymph and cell protoplasm will change, resulting in damage to the deoxyribonucleic acid in the cells and genetic mutations and deformities, which will induce leukemia and tumors, and also cause changes in placental chromosomes. Cause deformity of the baby or spontaneous abortion of the pregnant woman.
导电聚合物是具有可调控导电性能的有机聚合物，尤其是聚苯胺已经广泛应用于导电、电磁屏蔽、抗静电、金属防腐、光电子器件、气敏探头、超级电容等领域。利用原位化学氧化技术可以将聚苯胺包覆在纺织品表面，尤其是棉纤维表面，从而使不导电的棉织物具有导电性。聚苯胺通常通过掺杂来调控导电性，常用掺杂剂是质子酸类物质。目前已公开的聚苯胺包覆棉织物主要采用一些小分子有机酸进行掺杂，在洗涤过程中掺杂酸容易脱掺杂而失去导电性。 Conductive polymers are organic polymers with adjustable electrical conductivity, especially polyaniline, which has been widely used in electrical conduction, electromagnetic shielding, antistatic, metal anticorrosion, optoelectronic devices, gas sensor, supercapacitor and other fields. Using in-situ chemical oxidation technology, polyaniline can be coated on the surface of textiles, especially the surface of cotton fibers, so that the non-conductive cotton fabric has conductivity. The conductivity of polyaniline is usually adjusted by doping, and the commonly used dopant is protonic acid. The currently disclosed polyaniline-coated cotton fabrics are mainly doped with some small molecular organic acids, and the doped acids are easy to dedope and lose conductivity during washing.
植酸是一种多聚磷酸，作为螯合剂、抗氧化剂、保鲜剂、软水剂、发酵促进剂、金属防腐蚀剂等，广泛应用于食品、医药、油漆、涂料、日用化工、金属防腐、纺织工业、塑料工业及高分子工业等行业领域。植酸分子带有6个带负电的磷酸根基团，可以用于聚苯胺的掺杂，且对棉纤维具有较好的阻燃效果；植酸分子具有共平面性，亲和力较大，带负电荷，可以通过与聚烯丙基胺盐酸盐的层层组装作用吸附在纤维表面，使其具有较好的耐洗性。 Phytic acid is a kind of polyphosphoric acid, which is widely used in food, medicine, paint, coating, daily chemical industry, metal anticorrosion, textile, etc. Industry, plastic industry and polymer industry and other industries. The phytic acid molecule has 6 negatively charged phosphate groups, which can be used for the doping of polyaniline, and has a good flame retardant effect on cotton fibers; the phytic acid molecule has coplanarity, high affinity, and negative charge , can be adsorbed on the surface of the fiber through the layer-by-layer assembly with polyallylamine hydrochloride, so that it has better washing resistance.
发明内容 Contents of the invention
本发明所要解决的技术问题是，针对以上现有技术存在的缺点，提出一种利用阳离子聚电解质聚烯丙基胺盐酸盐层层组装植酸制备功能棉织物的方法，该制备方法简单易行，制备出的棉织物具有良好的导电性和阻燃性能，同时具有耐洗性等优点。 The technical problem to be solved by the present invention is to propose a method for preparing functional cotton fabrics using cationic polyelectrolyte polyallylamine hydrochloride layer-by-layer assembly of phytic acid for the shortcomings of the above prior art. The preparation method is simple and easy. Yes, the prepared cotton fabric has good electrical conductivity and flame retardant properties, and also has the advantages of washability.
为了实现上述目的本发明采取如下技术方案。 In order to achieve the above object, the present invention adopts the following technical solutions.
本发明提供的一种利用阳离子聚电解质聚烯丙基胺盐酸盐层层组装植酸制备功能棉织物的方法，本制备方法包括如下步骤：（1）将0.4-2g聚烯丙基胺盐酸盐溶解于100mL水中，加入棉布，室温下浸泡30min，取出并烘干；（2）将上述处理的棉布置于100mL植酸水溶液中，植酸水溶液浓度为5-10g/L，室温下浸泡30min，取出并烘干；（3）反复步骤（1）、（2）数次；（4）冷却至0-5ºC，加入2-5mL苯胺；（5）缓慢滴加含有5-7g过硫酸铵的20mL水溶液，滴完后静置30min；（6）将上述处理后的棉织物取出，水洗、烘干。 The invention provides a method for preparing functional cotton fabrics by using cationic polyelectrolyte polyallylamine hydrochloride to assemble phytic acid layer by layer. The preparation method comprises the following steps: (1) adding 0.4-2g of polyallylamine salt Dissolve salt in 100mL water, add cotton cloth, soak at room temperature for 30min, take out and dry; 30min, take it out and dry it; (3) Repeat steps (1) and (2) several times; (4) Cool to 0-5ºC, add 2-5mL aniline; (5) Slowly add 5-7g ammonium persulfate 20mL aqueous solution, let it stand for 30min after dripping; (6) Take out the cotton fabric after the above treatment, wash it with water, and dry it.
本发明的有益效果在于，本制备技术是将聚烯丙基胺盐酸盐作为植酸吸附剂，将植酸通过层层组装富集在棉纤维表面，以此为基础将苯胺原位聚合在棉纤维表面，使棉织物具有导电和阻燃性能；将聚烯丙基胺盐酸盐与植酸的层层组装技术与聚苯胺原位化学合成技术相结合，增加了植酸的耐洗性，提高了棉织物导电、阻燃的稳定性和持久性。 The beneficial effect of the present invention is that the preparation technology uses polyallylamine hydrochloride as a phytic acid adsorbent, phytic acid is enriched on the surface of cotton fibers through layer-by-layer assembly, and aniline is polymerized in situ on the basis of this The surface of cotton fibers makes cotton fabrics conductive and flame retardant; the layer-by-layer assembly technology of polyallylamine hydrochloride and phytic acid is combined with the in-situ chemical synthesis technology of polyaniline to increase the washability of phytic acid , improve the stability and durability of the cotton fabric's electrical conductivity and flame retardancy.
具体实施方式 detailed description
下文将结合具体实施例详细描述本发明。应当注意的是，下述实施例中描述的技术特征或者技术特征的组合不应当被认为是孤立的，它们可以被相互组合从而达到更好的技术效果。 The present invention will be described in detail below in conjunction with specific embodiments. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be regarded as isolated, and they can be combined with each other to achieve better technical effects.
实施例1 Example 1
（1）将1.5g聚烯丙基胺盐酸盐溶解于100mL水中，加入棉布，室温下浸泡30min，取出并烘干； (1) Dissolve 1.5g polyallylamine hydrochloride in 100mL water, add cotton cloth, soak for 30min at room temperature, take it out and dry it;
（2）将上述处理的棉布置于100mL植酸水溶液中，植酸水溶液浓度为10g/L，室温下浸泡30min，取出并烘干； (2) Arrange the cotton treated above in 100mL phytic acid aqueous solution, the concentration of phytic acid aqueous solution is 10g/L, soak at room temperature for 30min, take it out and dry it;
（3）反复步骤（1）、（2）数次； (3) Repeat steps (1) and (2) several times;
（4）冷却至0ºC，加入5mL苯胺； (4) Cool to 0ºC, add 5mL of aniline;
（5）缓慢滴加含有7g过硫酸铵的20mL水溶液，滴完后静置30min； (5) Slowly add 20mL of aqueous solution containing 7g of ammonium persulfate dropwise, and let stand for 30min after the drop;
（6）将上述处理后的棉织物取出，水洗、烘干。 (6) Take out the cotton fabric after the above treatment, wash it with water and dry it.
实施例2 Example 2
（1）将0.4g聚烯丙基胺盐酸盐溶解于100mL水中，加入棉布，室温下浸泡30min，取出并烘干； (1) Dissolve 0.4g polyallylamine hydrochloride in 100mL water, add cotton cloth, soak at room temperature for 30min, take it out and dry it;
（2）将上述处理的棉布置于100mL植酸水溶液中，植酸水溶液浓度为5g/L，室温下浸泡30min，取出并烘干； (2) Arrange the cotton treated above in 100mL phytic acid aqueous solution, the concentration of phytic acid aqueous solution is 5g/L, soak for 30min at room temperature, take it out and dry it;
（3）反复步骤（1）、（2）数次； (3) Repeat steps (1) and (2) several times;
（4）冷却至5ºC，加入2mL苯胺； (4) Cool to 5ºC, add 2mL of aniline;
（5）缓慢滴加含有5g过硫酸铵的20mL水溶液，滴完后静置30min； (5) Slowly add 20mL of aqueous solution containing 5g of ammonium persulfate dropwise, and let it stand for 30min after dropping;
（6）将上述处理后的棉织物取出，水洗、烘干。 (6) Take out the cotton fabric after the above treatment, wash it with water and dry it.
实施例3 Example 3
（1）将2g聚烯丙基胺盐酸盐溶解于100mL水中，加入棉布，室温下浸泡30min，取出并烘干； (1) Dissolve 2g polyallylamine hydrochloride in 100mL water, add cotton cloth, soak at room temperature for 30min, take it out and dry it;
（2）将上述处理的棉布置于100mL植酸水溶液中，植酸水溶液浓度为8g/L，室温下浸泡30min，取出并烘干； (2) Arrange the cotton treated above in 100mL phytic acid aqueous solution, the concentration of phytic acid aqueous solution is 8g/L, soak at room temperature for 30min, take it out and dry it;
（3）反复步骤（1）、（2）数次； (3) Repeat steps (1) and (2) several times;
（4）冷却至0ºC，加入4mL苯胺； (4) Cool to 0ºC, add 4mL of aniline;
（5）缓慢滴加含有6g过硫酸铵的20mL水溶液，滴完后静置30min； (5) Slowly add 20mL of aqueous solution containing 6g of ammonium persulfate dropwise, and let it stand for 30min after dropping;
（6）将上述处理后的棉织物取出，水洗、烘干。 (6) Take out the cotton fabric after the above treatment, wash it with water and dry it.
本文虽然已经给出了本发明的一些实施例，但是本领域的技术人员应当理解，在不脱离本发明精神的情况下，可以对本文的实施例进行改变。上述实施例只是示例性的，不应以本文的实施例作为本发明权利范围的限定。 Although some embodiments of the present invention have been given herein, those skilled in the art should understand that the embodiments herein can be changed without departing from the spirit of the present invention. The above-mentioned embodiments are only exemplary, and the embodiments herein should not be used as limitations on the scope of rights of the present invention.
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| CN111996798B (en) * | 2020-08-27 | 2023-01-31 | 盐城工学院 | A kind of LBL method expansive flame-retardant cotton fabric coating and coating method thereof |
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