A kind of preparation method of fully biodegradable nanocomposite polyester plastic

A technology of composite polyester and polysaccharide nanocrystals, applied in the field of degradable ecological environment materials and natural polymer materials, can solve the problems of insignificant effect, high price, poor barrier properties, etc., achieve low cost, improve material performance, reduce The effect of cost of use

Inactive Publication Date: 2011-12-28
YANXIN WULONGXING PLASTICS HIGH TECH MATERIALS
View PDF1 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this degradable polyester synthetic material with excellent performance has limited its practical application in the field of materials due to its inherent softness, poor barrier properties, and high price.
In recent years, many organic and inorganic substances have been introduced into the modification research of polybutylene succinate materials, such as natural polymers (cellulose acetate, cellulose, corn starch], chitosan, silk protein, plant or red algal fibers); synthetic

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of preparation method of polysaccharide nano crystal composite polyester material, it comprises the steps:

[0020] The cellulose whiskers extracted from cotton linters (Xiangfan Chutian Chemical Fiber Co., Ltd., the following examples are the same) and polybutylene succinate (provided by China Anqing Hexing Chemical Co., Ltd., with a weight average molecular weight of 1.29× 10 5 , the following examples are the same) with a mass ratio of 1:50, select cellulose whiskers and polybutylene succinate, and disperse and dissolve the cellulose whiskers and polybutylene succinate in chloroform respectively , made of cellulose whisker suspension, polybutylene succinate solution. The two solutions were mixed evenly, and then the solvent was evaporated at 60° C. to obtain a solid mixture of cellulose whiskers and polybutylene succinate. The blend is then subjected to hot-compression composite molding on a hot press (China Tianjin Keqi High-tech Co., Ltd., the following ex...

Embodiment 2

[0023] A kind of preparation method of polysaccharide nano crystal composite polyester material, it comprises the steps:

[0024] The mass ratio of the cellulose whiskers extracted from cotton linters to polybutylene succinate is 1:20, the cellulose whiskers and polybutylene succinate are selected, and the cellulose whiskers and polybutylene succinate are Butylene dioate is dispersed and dissolved in chloroform to make cellulose whisker suspension and polybutylene succinate solution. The two solutions were mixed evenly, and then the solvent was evaporated at 40° C. to obtain a solid mixture of cellulose whiskers and polybutylene succinate. Then, the blend is subjected to hot-compression composite molding on a hot press: the temperature is 120°C, the pressure is 20MPa, and the time is 10 minutes; after molding, it is vacuum-dried at 50°C for 12 hours to remove moisture to obtain cellulose whisker composite polybutylene. Butylene glycol diacid material.

[0025] According to m...

Embodiment 3

[0027] A kind of preparation method of polysaccharide nano crystal composite polyester material, it comprises the steps:

[0028] The mass ratio of the cellulose whiskers extracted from cotton linters to polybutylene succinate is 1:10, the cellulose whiskers and polybutylene succinate are selected, and the cellulose whiskers and polybutylene succinate are Butylene dioate is dispersed and dissolved in chloroform to make cellulose whisker suspension and polybutylene succinate solution. The two solutions were mixed evenly, and then the solvent was evaporated at 35° C. to obtain a solid mixture of cellulose whiskers and polybutylene succinate. Then the blend is subjected to hot-compression composite molding on a hot press: the temperature is 115°C, the pressure is 20MPa, and the time is 10 minutes; after molding, it is vacuum-dried at 50°C for 12 hours to remove moisture, and the cellulose whisker composite polybutylene is obtained. Butylene glycol diacid material.

[0029] Acco...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a preparation method of a polysaccharide nanocrystalline composite polyester material. A preparation method of a biodegradable nanocomposite material, characterized in that it comprises the steps of: 1) selecting polysaccharide nanocrystals with a mass ratio of 1:1 to 30 according to the mass ratio of polypolysaccharide nanocrystals and polybutylene succinate (cellulose whiskers or starch nanocrystals), polybutylene succinate raw materials; 2) then adopt the method for solution blending or melt blending respectively, polysaccharide nanocrystals, polybutylene succinate Uniform compounding to obtain a solid mixture; 3) hot-pressing the solid mixture, drying the material, and preparing a polysaccharide nanocrystal modified polybutylene succinate bionano composite material product. The invention has many advantages such as low cost, non-toxic and harmless, environmental protection, complete biodegradability, simple process, etc. The prepared products can be processed into films, sheets, profiles, fibers and containers; they can be used in packaging, biological, medical, Engineering plastics and other material fields.

Description

technical field [0001] The invention relates to a polysaccharide nanocrystal composite modified polyester material and a method for preparing biodegradable materials, which belong to the field of degradable ecological environment materials and also belong to the field of natural polymer materials. Background technique [0002] Various natural polymers in nature belong to biomass resources, such as cellulose, starch and other biomass polysaccharides. They have many types of active functional groups, and have the advantages of being renewable, degradable, and non-toxic. They are regarded as excellent "green" chemical raw materials, and their comprehensive utilization has attracted much attention. Nanocrystals extracted from polysaccharides are a new type of biomass nanoparticles, which not only inherit all the advantages of biomass sources, but also have nanoscale effects such as high surface activity and high specific surface area, and their intrinsic rigid structure shows E...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L67/02C08L1/02C08L3/02C08L5/08B29B7/28B29C51/46
Inventor 黄进林宁梁兼胜
Owner YANXIN WULONGXING PLASTICS HIGH TECH MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap