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Paper-imitating biodegradable resin and preparation method

A technology of biodegradable resin and imitation paper, applied to paper, synthetic cellulose fibers, inorganic fibers/sheets, etc., can solve the problems of lack of paper feeling, high paper weight, poor printing and writing performance, etc., and achieve good printing and writing properties, Good rigidity and good uniformity

Active Publication Date: 2010-12-15
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, some defects are also exposed. Due to the large amount of polymer and calcium carbonate used, the paper has a high basis weight, a heavy hand feel, a lack of paper feel, poor printing and writing performance, and usually requires coating treatment.
Due to the existence of polyethylene and polypropylene, it is difficult to degrade paper, and it is very easy to cause environmental pollution after being discarded.
Moreover, a large amount of degradable polymers will increase the cost, which loses the significance of low-cost promotion of paper-like materials

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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1) Add 40-70 parts of wollastonite fiber into the SJW-100 double paddle mixer, control the mixing equipment at 80 ° C ~ 130 ° C, add 3-5 parts of maleic anhydride grafted polypropylene from the feeding port during the stirring process For wax, disperse vigorously at a speed of 500-900rpm in a mixing device for 5 minutes for later use.

[0042] 2) Stir and dry 10-30 parts of corn stalk fiber and 5-20 parts of methacrylate grafted starch fiber in SJW-100 mixing equipment until the water content is less than 1%. Add 3-5 parts of acetic anhydride at 60°C to 80°C, and mix and react for 30 minutes under vigorous stirring at a speed of 500-900 rpm.

[0043] 3) Put the materials obtained in step 1) and step 2) into the mixing equipment, and under the strong stirring at a speed of 500-900rpm, control the temperature of the mixing equipment at 60°C to 80°C, and add 1.5 parts by weight of ethylene bis fatty acid amide, 0.3 Parts by weight of β (3,5-di-tert-butyl-4-hydroxyphenyl) ...

Embodiment 2

[0046] 1) Add 20-30 parts of calcium carbonate fiber and 20-40 parts of sepiolite fiber into the SJW-100 double-blade mixer, control the mixing equipment at 80 ° C ~ 130 ° C, add 3-5 parts from the feeding port during the stirring process Ethylene-acrylic acid ester copolymer, disperse vigorously at a speed of 500-900rpm in a mixing device for 10 minutes for later use.

[0047] 2) Stir and dry 5-15 parts of sorghum stalk fiber, 5-15 parts of corn stalk fiber and 5-20 parts of acrylonitrile-grafted starch fiber in SJW-100 mixing equipment until the water content is less than 1%. Add 3-5 parts of α-methacrylic acid under the condition of 60°C-80°C, and mix and react for 20 minutes under strong stirring at 500-900rpm.

[0048] 3) Put the materials obtained in step 1) and step 2) into the mixing equipment, and under the strong stirring at a speed of 500-900rpm, control the temperature of the mixing equipment at 60°C to 80°C, and add 2.0 parts by weight of No. 56 paraffin wax, 0.2 ...

Embodiment 3

[0051] 1) Add 30-40 parts of wollastonite fiber and 10-30 parts of gypsum fiber into the SJW-100 double paddle mixer, control the mixing equipment at 80°C to 130°C, and add 3-5 parts of γ from the feeding port during the stirring process -Aminopropyltrimethoxysilane, disperse vigorously in a mixing device at a speed of 500-900rpm for 8 minutes for later use.

[0052] 2) Stir and dry 10-30 parts by weight of hydroxypropyl methylcellulose, 3-10 parts by weight of acrylate grafted starch fiber, and 2-10 parts by weight of gelatinized starch fiber in SJW-100 mixing equipment to less than 1% water. Add 3-5 parts of benzyl chloride under the condition of 60°C to 80°C, and mix and react for 30 minutes under vigorous stirring at 500-900 rpm for later use.

[0053] 3) Put the materials obtained in step 1) and step 2) into the mixing equipment, and under strong stirring at a speed of 500-900rpm, control the temperature of the mixing equipment at 60°C to 80°C, and add 2.0 parts by weigh...

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Abstract

The invention discloses a paper-imitating biodegradable resin and a preparation method. For improving the degradability and natural recoverability of paper-imitating materials and making the paper-imitating materials have similar lightness, foldability and printing and writing performance as the conventional paper. The paper-imitating biodegradable resin uses mineral fibers, vegetable fibers and starch fibers as main components, and concretely comprises the following components in part by weight: 40 to 70 parts of mineral fibers, 10 to 30 parts of vegetable fibers, 5 to 20 parts of starch fibers, 5 to 15 parts of biopolymer, 3 to 5 parts of modifier, 3 to 5 parts of compatibilizer and 3 to 8 parts of processing assistant. The mineral fibers, vegetable fibers and starch fibers are interweaved through thermoplastic processing, and the preparation process is clear and pollution-free. The paper-imitating biodegradable resin can be processed into various paper-imitating products by hot plasticizing equipment, and the products, when discarded, can be swallowed and decomposed by microbes without polluting the environment.

Description

technical field [0001] The invention relates to a paper-like biodegradable resin, specifically, the invention provides a biodegradable resin which can be directly used for paper processing and a preparation method. Background technique [0002] As one of the four great inventions in ancient my country, papermaking is an outstanding creation in the history of human civilization. Paper plays an important role in human's daily life, work and study. Due to the recyclable and degradable characteristics of paper, it is more and more widely used in the field of packaging, and its consumption is increasing. However, while promoting the rapid development of human civilization, traditional papermaking has seriously damaged tree resources, and the production process has caused serious water pollution. my country is an area lacking in forest resources, so my country is the world's largest importer of primary pulp and waste paper. The import of pulp accounts for about 16% of the world'...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L1/18C08L1/12C08L1/22C08L1/26C08L51/02C08L3/02C08L67/04C08L67/02C08L69/00C08K13/04C08K7/04C08K7/08C08K7/10B29B7/28B29C47/92D21H13/04D21H13/06D21H13/24D21H13/30D21H13/36B29C48/92
Inventor 陈庆曾军堂刘宏
Owner CHENDU NEW KELI CHEM SCI CO LTD
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