CN104725803A - Polyhydroxyacetic acid-copper ammonia regenerated cellulose-polylactic acid composite material and preparation method thereof - Google Patents
Polyhydroxyacetic acid-copper ammonia regenerated cellulose-polylactic acid composite material and preparation method thereof Download PDFInfo
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- CN104725803A CN104725803A CN201510147617.0A CN201510147617A CN104725803A CN 104725803 A CN104725803 A CN 104725803A CN 201510147617 A CN201510147617 A CN 201510147617A CN 104725803 A CN104725803 A CN 104725803A
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Abstract
The invention provides a polyhydroxyacetic acid-copper ammonia regenerated cellulose-polylactic acid composite material and a preparation method thereof. The polyhydroxyacetic acid-copper ammonia regenerated cellulose-polylactic acid composite material comprises the following components in parts by weight: 36-46 parts of polyhydroxyacetic acid, 34-50 parts of copper ammonia regenerated cellulose, 6-12 parts of polylactic acid, 0.1-10 parts of 2-methylacryloyl oxyethylphosphoryl choline, 2-5 parts of polyethyleneglycol, 1-4 parts of lubricant and 1-3 parts of assistant. The preparation method comprises the following steps: drying the polyhydroxyacetic acid in a drying oven; uniformly mixing the dried polyhydroxyacetic acid with the rest of raw materials, adding into a co-rotating twin-screw compounding extruder to perform extrusion granulation to obtain composite material sample strips, granulating by a granulating machine, and finally, drying in a drying oven to constant mass. Compared with the polyhydroxyacetic acid-polylactic acid composite material, the polyhydroxyacetic acid-copper ammonia regenerated cellulose-polylactic acid composite material has higher tensile strength and bending strength, and is suitable for processing and application.
Description
Technical field
The present invention relates to technical field of biological material, be specifically related to a kind of polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material and preparation method thereof.
Background technology
Along with the demand of growing minimizing white pollution, substitute the polymer materials being difficult to degrade with biodegradable material, become one of key subjects of attracting attention in the world.The research and development of Biodegradable material have become a large focus of Material Field.
Polyglycolic acid is in body in Absorbable rod polymer business-like one the earliest, usual and poly(lactic acid) is compounded to form lactic acid-hydroxyl ethanol acid copolymer, there is the advantages such as steady quality, bio-compatibility, biodegradability and good plasticity-, but physical strength is not high, causes its application limited.
Summary of the invention
goal of the invention:the object of the present invention is to provide a kind of polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material with good mechanical properties and preparation method thereof.
technical scheme of the present invention:
A kind of polyglycolic acid/cuprammonium regenerated cellulose-lactic acid composite material, by weight, comprise following component: polyglycolic acid 36 ~ 46 parts, cuprammonium regenerated cellulose 34 ~ 50 parts, poly(lactic acid) 6 ~ 12 parts, 2-methacryloxyethyl Phosphorylcholine 0.1 ~ 10 part, polyoxyethylene glycol 2 ~ 5 parts, lubricant 1 ~ 4 part and auxiliary agent 1 ~ 3 part.
Preferably, by weight, following component is comprised: polyglycolic acid 40 ~ 42 parts, cuprammonium regenerated cellulose 40 ~ 44 parts, poly(lactic acid) 8 ~ 10 parts, 2-methacryloxyethyl Phosphorylcholine 5 ~ 7 parts, polyoxyethylene glycol 3 ~ 4 parts, lubricant 2 ~ 3 parts and auxiliary agent 2 ~ 3 parts.
More preferably, by weight, following component is comprised: polyglycolic acid 41 parts, cuprammonium regenerated cellulose 42 parts, poly(lactic acid) 9 parts, 2-methacryloxyethyl Phosphorylcholine 6 parts, polyoxyethylene glycol 3 parts, lubricant 2 parts and auxiliary agent 2 parts.
Described lubricant is calcium stearate.
Described auxiliary agent is wilkinite, mica, kaolin, one or more mixture talcous.
A preparation method for polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material, comprises the steps:
(1) polyglycolic acid is placed in the drying in oven of 50 ~ 60 DEG C to constant mass, for subsequent use;
(2) step (1) dried polyglycolic acid and all the other raw materials are mixed; join extruding pelletization in parallel dual-screw compounding extrusion machine; each section of temperature of forcing machine is set to 100 DEG C, Ith district, 145 DEG C, IIth district, 165 DEG C, IIIth district, 155 DEG C, IVth district, 145 DEG C, district; screw speed is 400 ~ 450 r/min; feed rate is about 12 ~ 15g/min; water cooling; obtained polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material batten; and after through dicing machine granulation, be finally placed in 50 ~ 60 DEG C of drying in oven to constant mass.
beneficial effect:
Polyglycolic acid prepared by the present invention-cuprammonium regenerated cellulose-lactic acid composite material has higher tensile strength and flexural strength relative to PLGA matrix material, is more suitable for processed and applied.
Embodiment
Below the specific embodiment of the present invention is described in detail.
embodiment 1
A kind of polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material, by weight, comprise following component: polyglycolic acid 36 parts, cuprammonium regenerated cellulose 34 parts, poly(lactic acid) 6 parts, 2-methacryloxyethyl Phosphorylcholine 0.1 part, polyoxyethylene glycol 2 parts, calcium stearate 1 part and wilkinite 1 part.
Preparation method, comprises the steps:
(1) polyglycolic acid is placed in the drying in oven of 50 DEG C to constant mass, for subsequent use;
(2) step (1) dried polyglycolic acid and all the other raw materials are mixed; join extruding pelletization in parallel dual-screw compounding extrusion machine; each section of temperature of forcing machine is set to 100 DEG C, Ith district, 145 DEG C, IIth district, 165 DEG C, IIIth district, 155 DEG C, IVth district, 145 DEG C, district; screw speed is 400r/min; feed rate is about 15g/min; water cooling; obtained polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material batten; and after through dicing machine granulation, be finally placed in 50 DEG C of drying in oven to constant mass.
embodiment 2
A kind of polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material, by weight, comprise following component: polyglycolic acid 40 parts, cuprammonium regenerated cellulose 40 parts, poly(lactic acid) 8 parts, 2-methacryloxyethyl Phosphorylcholine 5 parts, polyoxyethylene glycol 3 parts, calcium stearate 2 parts and 2 parts, mica.
Preparation method, comprises the steps:
(1) polyglycolic acid is placed in the drying in oven of 50 DEG C to constant mass, for subsequent use;
(2) step (1) dried polyglycolic acid and all the other raw materials are mixed; join extruding pelletization in parallel dual-screw compounding extrusion machine; each section of temperature of forcing machine is set to 100 DEG C, Ith district, 145 DEG C, IIth district, 165 DEG C, IIIth district, 155 DEG C, IVth district, 145 DEG C, district; screw speed is 410 r/min; feed rate is about 14g/min; water cooling; obtained polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material batten; and after through dicing machine granulation, be finally placed in 50 DEG C of drying in oven to constant mass.
embodiment 3
A kind of polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material, by weight, comprise following component: polyglycolic acid 41 parts, cuprammonium regenerated cellulose 42 parts, poly(lactic acid) 9 parts, 2-methacryloxyethyl Phosphorylcholine 6 parts, polyoxyethylene glycol 3 parts, calcium stearate 2 parts and kaolin 2 parts.
Preparation method, comprises the steps:
(1) polyglycolic acid is placed in the drying in oven of 55 DEG C to constant mass, for subsequent use;
(2) step (1) dried polyglycolic acid and all the other raw materials are mixed; join extruding pelletization in parallel dual-screw compounding extrusion machine; each section of temperature of forcing machine is set to 100 DEG C, Ith district, 145 DEG C, IIth district, 165 DEG C, IIIth district, 155 DEG C, IVth district, 145 DEG C, district; screw speed is 420 r/min; feed rate is about 13g/min; water cooling; obtained polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material batten; and after through dicing machine granulation, be finally placed in 55 DEG C of drying in oven to constant mass.
embodiment 4
A kind of polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material, by weight, comprise following component: polyglycolic acid 42 parts, cuprammonium regenerated cellulose 44 parts, poly(lactic acid) 10 parts, 2-methacryloxyethyl Phosphorylcholine 7 parts, polyoxyethylene glycol 4 parts, calcium stearate 3 parts and talcum powder 3 parts.
Preparation method, comprises the steps:
(1) polyglycolic acid is placed in the drying in oven of 55 DEG C to constant mass, for subsequent use;
(2) step (1) dried polyglycolic acid and all the other raw materials are mixed; join extruding pelletization in parallel dual-screw compounding extrusion machine; each section of temperature of forcing machine is set to 100 DEG C, Ith district, 145 DEG C, IIth district, 165 DEG C, IIIth district, 155 DEG C, IVth district, 145 DEG C, district; screw speed is 430 r/min; feed rate is about 12g/min; water cooling; obtained polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material batten; and after through dicing machine granulation, be finally placed in 55 DEG C of drying in oven to constant mass.
embodiment 5
A kind of polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material, by weight, comprise following component: polyglycolic acid 46 parts, cuprammonium regenerated cellulose 50 parts, poly(lactic acid) 12 parts, 2-methacryloxyethyl Phosphorylcholine 10 parts, polyoxyethylene glycol 5 parts, calcium stearate 4 parts and talcum powder 3 parts.
Preparation method, comprises the steps:
(1) polyglycolic acid is placed in the drying in oven of 60 DEG C to constant mass, for subsequent use;
(2) step (1) dried polyglycolic acid and all the other raw materials are mixed; join extruding pelletization in parallel dual-screw compounding extrusion machine; each section of temperature of forcing machine is set to 100 DEG C, Ith district, 145 DEG C, IIth district, 165 DEG C, IIIth district, 155 DEG C, IVth district, 145 DEG C, district; screw speed is 450 r/min; feed rate is about 12g/min; water cooling; obtained polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material batten; and after through dicing machine granulation, be finally placed in 60 DEG C of drying in oven to constant mass.
comparative example 1
A kind of polyglycolic acid // lactic acid composite material, by weight, comprises following component: polyglycolic acid 46 parts, poly(lactic acid) 12 parts, 2-methacryloxyethyl Phosphorylcholine 10 parts, polyoxyethylene glycol 5 parts, calcium stearate 4 parts and talcum powder 3 parts.
Preparation method is with embodiment 5.
performance test:
Polyglycolic acid-cuprammonium regenerated cellulose-the lactic acid composite material prepare embodiment 1 ~ 5 and polyglycolic acid carry out Mechanics Performance Testing and water-intake rate measures, and the results are shown in Table 1.
Table 1 Mechanics Performance Testing and water-intake rate measurement result
。
As can be seen from Table 1, polyglycolic acid prepared by the present invention-cuprammonium regenerated cellulose-lactic acid composite material has higher tensile strength and flexural strength relative to PLGA matrix material, is more suitable for processed and applied.
Although embodiment of the present invention are open as above, but it is not restricted to listed in specification sheets and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details.
Claims (6)
1. polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material, it is characterized in that, by weight, comprise following component: polyglycolic acid 36 ~ 46 parts, cuprammonium regenerated cellulose 34 ~ 50 parts, poly(lactic acid) 6 ~ 12 parts, 2-methacryloxyethyl Phosphorylcholine 0.1 ~ 10 part, polyoxyethylene glycol 2 ~ 5 parts, lubricant 1 ~ 4 part and auxiliary agent 1 ~ 3 part.
2. a kind of polyglycolic acid according to claim 1-cuprammonium regenerated cellulose-lactic acid composite material, it is characterized in that, by weight, comprise following component: polyglycolic acid 40 ~ 42 parts, cuprammonium regenerated cellulose 40 ~ 44 parts, poly(lactic acid) 8 ~ 10 parts, 2-methacryloxyethyl Phosphorylcholine 5 ~ 7 parts, polyoxyethylene glycol 3 ~ 4 parts, lubricant 2 ~ 3 parts and auxiliary agent 2 ~ 3 parts.
3. a kind of polyglycolic acid according to claim 1-cuprammonium regenerated cellulose-lactic acid composite material, it is characterized in that, by weight, comprise following component: polyglycolic acid 41 parts, cuprammonium regenerated cellulose 42 parts, poly(lactic acid) 9 parts, 2-methacryloxyethyl Phosphorylcholine 6 parts, polyoxyethylene glycol 3 parts, lubricant 2 parts and auxiliary agent 2 parts.
4. a kind of polyglycolic acid according to any one of claim 1 ~ 3-cuprammonium regenerated cellulose-lactic acid composite material, is characterized in that, described lubricant is calcium stearate.
5. a kind of polyglycolic acid according to any one of claim 1 ~ 3-cuprammonium regenerated cellulose-lactic acid composite material, is characterized in that, described auxiliary agent is wilkinite, mica, kaolin, one or more mixture talcous.
6., based on the preparation method of a kind of polyglycolic acid according to claim 1-cuprammonium regenerated cellulose-lactic acid composite material, it is characterized in that, comprise the steps:
(1) polyglycolic acid is placed in the drying in oven of 50 ~ 60 DEG C to constant mass, for subsequent use;
(2) step (1) dried polyglycolic acid and all the other raw materials are mixed; join extruding pelletization in parallel dual-screw compounding extrusion machine; each section of temperature of forcing machine is set to 100 DEG C, Ith district, 145 DEG C, IIth district, 165 DEG C, IIIth district, 155 DEG C, IVth district, 145 DEG C, district; screw speed is 400 ~ 450 r/min; feed rate is about 12 ~ 15g/min; water cooling; obtained polyglycolic acid-cuprammonium regenerated cellulose-lactic acid composite material batten; and after through dicing machine granulation, be finally placed in 50 ~ 60 DEG C of drying in oven to constant mass.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105237973A (en) * | 2015-09-30 | 2016-01-13 | 苏州蔻美新材料有限公司 | Polylactic acid-bacterial cellulose composite material and preparation method thereof |
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| CN103467938A (en) * | 2012-06-08 | 2013-12-25 | 上海梭莱泰刻机电发展有限公司 | High-strength completely biodegradable medical resin composition and preparation method thereof |
| CN104220463A (en) * | 2012-03-29 | 2014-12-17 | Dic株式会社 | Method for producing modified cellulose nanofibers, modified cellulose nanofibers, resin composition, and molded article thereof |
| CN104262982A (en) * | 2014-09-09 | 2015-01-07 | 安徽坤城木艺有限公司 | Wood fiber with antistatic function and production method of wood fiber |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104220463A (en) * | 2012-03-29 | 2014-12-17 | Dic株式会社 | Method for producing modified cellulose nanofibers, modified cellulose nanofibers, resin composition, and molded article thereof |
| CN103467938A (en) * | 2012-06-08 | 2013-12-25 | 上海梭莱泰刻机电发展有限公司 | High-strength completely biodegradable medical resin composition and preparation method thereof |
| CN104262982A (en) * | 2014-09-09 | 2015-01-07 | 安徽坤城木艺有限公司 | Wood fiber with antistatic function and production method of wood fiber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105237973A (en) * | 2015-09-30 | 2016-01-13 | 苏州蔻美新材料有限公司 | Polylactic acid-bacterial cellulose composite material and preparation method thereof |
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Application publication date: 20150624 |