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Biodegradable material, and preparation method and uses thereof

A technology of biodegradable materials and natural plants, applied in the field of biodegradable materials and their preparation, and the preparation of biodegradable films, can solve the problems of easy damage and low elongation at break, and achieve good overall mechanical properties and excellent tensile strength. The effect of tensile strength and good elongation at break

Active Publication Date: 2014-07-30
深圳万达杰环保新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the biodegradable copolyester composition is biodegradable, due to the lack of components such as compatibilizers and compatibilizers, its elongation at break is low, and the prepared film-type plastic products are very easy to break

Method used

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  • Biodegradable material, and preparation method and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Weigh the following raw materials in parts by weight:

[0044] Dried dimethyl carbonate-butylene glycol copolymer (the weight percent composition of moisture is 0.8%, Guangzhou Big Jia Science and Technology Co., Ltd., Bio-plus 803) 50 weight parts, butylene adipate and p-phthalic acid The copolymer of butylene glycol diformate (the weight percent composition of moisture is 0.8%, Hangzhou Xinfu Pharmaceutical Industry, Biocosafe2003) 25 weight parts, polylactic acid (Natureworks 2002D, LD mixed type polylactic acid) 30 weight parts, polyethylene Diol (Sinopharm, PEG 400) 5 parts by weight, castor oil 14 parts by weight, diphenylmethane diisocyanate (Yantai Wanhua, MDI, WANNATE 100) 1 part by weight.

[0045] First, pre-mix the raw materials in the pre-mixer, the initial temperature of mixing is 40°C, the speed of the pre-mixer is 800-1200 rpm (slowly increase from low speed to high speed, and mix for 30 minutes), after fully mixing, The mixed material is obtained; the ...

Embodiment 2

[0048] Weigh the following raw materials in parts by weight:

[0049] Dried dimethyl carbonate-butylene glycol copolymer (the weight percent composition of moisture is 0.8%, Guangzhou Big Jia Science and Technology Co., Ltd., Bio-plus 803) 50 weight parts, butylene adipate and p-phthalic acid The copolymer of butylene glycol diformate (the weight percent composition of moisture is 0.8%, Hangzhou Xinfu Pharmaceutical Industry, Biocosafe2003) 25 weight parts, polylactic acid (Natureworks 2002D, LD mixed type polylactic acid) 30 weight parts, polyethylene 5 parts by weight of diol (Sinopharm, PEG 400), 14 parts by weight of castor oil, and 1 part by weight of epoxy silane coupling agent (KH-550, γ-aminopropyltriethoxysilane).

[0050] First, pre-mix the raw materials in the pre-mixer, the initial temperature of mixing is 40°C, the speed of the pre-mixer is 800-1200 rpm (slowly increase from low speed to high speed, and mix for 30 minutes), after fully mixing, The mixed material ...

Embodiment 3

[0053] Weigh the following raw materials in parts by weight:

[0054] Dried dimethyl carbonate-butylene glycol copolymer (the weight percent composition of moisture is 0.8%, Guangzhou Big Jia Science and Technology Co., Ltd., Bio-plus 803) 50 weight parts, butylene adipate and p-phthalic acid 25 parts by weight of the copolymer of butylene glycol diformate (the weight percentage of moisture is 0.8%, Hangzhou Xinfu Pharmaceutical, Biocosafe2003), 30 parts by weight of polylactic acid (Natureworks 2002D, LD mixed type polylactic acid), 5 parts by weight of glycerin Parts by weight, castor oil 14 parts by weight, diphenylmethane diisocyanate (Yantai Wanhua, MDI, WANNATE 100) 1 part by weight.

[0055] First, pre-mix the raw materials in the pre-mixer, the initial temperature of mixing is 40°C, the speed of the pre-mixer is 800-1200 rpm (slowly increase from low speed to high speed, and mix for 30 minutes), after fully mixing, The mixed material is obtained; the mixed material is...

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Abstract

The invention discloses a biodegradable material, which consists of the following components by weight percent: 30% to 70% of methyl carbonate-butylene glycol copolymer, 10% to 35% of butyleneglycol adipate-butyleneglycol terephthalate copolymer, 0 to 35% of polylactic acid, 5% to 20% of natural vegetable oil, 1% to 10% of plasticizer and 0.02% to 5% of reaction promoter. The biodegradable material is not only biodegradable, but also exhibits excellent mechanical properties by means of the action among these components while good transparency is kept, so the biodegradable material is extremely suitable for the preparation of biodegradable thin film. The invention further discloses a preparation method of the biodegradable material. The preparation method is simple in process, easy for control and industrial production, strong in operability, superior in economic benefit and wide in application prospect.

Description

technical field [0001] The invention relates to the field of plastic materials, in particular to a biodegradable material, a preparation method thereof and an application in preparing a biodegradable film. Background technique [0002] Since plastic materials were put into use in the 1930s, they have been widely used in various sectors of the national economy and in various fields of people's lives due to their outstanding characteristics such as light weight, low price, smooth and beautiful appearance, corrosion resistance, and simple production process. The world's plastic raw material production exceeded 100 million tons for the first time in 1991. By 2003, the world's annual plastic production had reached nearly 200 million tons, which exceeded the total output of steel, aluminum, copper and other metal materials in terms of volume. From 1995 to 2000, the average annual growth rate of global plastic production was 6.3%. According to forecasts, the world's demand for pla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L67/02C08L67/04C08K5/103B29B9/06B29C47/92B29C48/92
CPCB29C47/92B29C48/0022B29C48/04B29C48/40
Inventor 汤兆宾朱锦熊竹杨勇张传芝
Owner 深圳万达杰环保新材料股份有限公司