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Degradable composite material and preparation method thereof

A composite material and raw material technology, applied in the field of degradable composite materials and its preparation, can solve problems such as uneven plant fibers, and achieve the effects of improving mechanical properties, stability, and compatibility

Inactive Publication Date: 2018-03-13
肖宇萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages such as the inhomogeneity of the plant fiber itself are the technical bottleneck of this type of composite material.

Method used

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  • Degradable composite material and preparation method thereof
  • Degradable composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take the raw materials of following weight ratio and make:

[0021] 30 parts of polyethylene, 20 parts of bacterial cellulose, 10 parts of cyclodextrin, 30 parts of polylactic acid, 30 parts of polybutylene succinate, 6 parts of zymosan, 2 parts of acetyl chloride, 2 parts of n-octanol, silane 2 parts of coupling agent, 5 parts of chitosan, 5 parts of maleic anhydride grafted polyethylene, 1 part of gum arabic, 1 part of epichlorohydrin, 1 part of acetyl tributyl citrate, and 2 parts of polyvinyl acetate.

[0022] Prepare as follows:

[0023] (1) Add bacterial cellulose, chitosan, acetyl chloride, silane coupling agent, and n-octanol to the reaction vessel, react for 6 hours at 80°C, wash the reaction product with water until neutral, and put Put it into a freeze dryer and dry for 12 hours, pulverize with a ball mill until the particle size is below 200 mesh, and sieve to obtain the modified bacterial cellulose powder.

[0024] (2) Add polyethylene, cyclodextrin, zymo...

Embodiment 2

[0028] Take the raw materials of following weight ratio and make:

[0029] 40 parts of polyethylene, 30 parts of bacterial cellulose, 20 parts of cyclodextrin, 40 parts of polylactic acid, 40 parts of polybutylene succinate, 14 parts of zymosan, 6 parts of acetyl chloride, 8 parts of n-octanol, silane 10 parts of coupling agent, 12 parts of chitosan, 15 parts of maleic anhydride grafted polyethylene, 8 parts of gum arabic, 6 parts of epichlorohydrin, 6 parts of acetyl tributyl citrate, and 8 parts of polyvinyl acetate.

[0030] Prepare as follows:

[0031] (1) Add bacterial cellulose, chitosan, acetyl chloride, silane coupling agent, and n-octanol to the reaction vessel, react for 3 hours at 120°C, wash the reaction product with water until neutral, and put Put it into a freeze dryer and dry it for 120 hours, pulverize it with a ball mill until the particle size is below 200 mesh, and sieve to obtain the modified bacterial cellulose powder.

[0032] (2) Add polyethylene, cyc...

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PUM

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Abstract

The invention discloses a degradable composite material and a preparation method thereof, and relates to the technical field of plastic preparation. The degradable composite material is prepared fromthe following raw materials in parts by weight: 30 to 40 parts of polyethylene, 20 to 30 parts of bacterial cellulose, 10 to 20 parts of cyclodextrin, 30 to 40 parts of polylactic acid, 30 to 40 partsof polybutylene succinate, 6 to 14 parts of zymosan, 1 to 6 parts of acetyl chloride, 1 to 8 parts of n-octanol, 2 to 10 parts of silane coupling agent, 5 to 12 parts of chitosan, 5 to 15 parts of maleic anhydride grafted polyethylene, 1 to 8 parts of arabic gum, 1 to 6 parts of epoxy chloropropane, 1 to 6 parts of acetyl tributyl citrate and 2 to 8 parts of polyvinyl acetate. The preparation method comprises the following steps of modification of the bacterial cellulose, mixing, extrusion, band casting, granulation, injection molding and the like. The composite material provided by the invention is stable in structural performance and good in mechanical strength, has the tensile strength of 10N / mm<2> to 18N / mm<2>, the breaking strength of 12N / mm<2> to 28N / mm<2> and the breaking elongation of 120 to 240 percent and meanwhile, can be subjected to biodegradation and therefore, an environment cannot be polluted.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and specifically relates to a degradable composite material and a preparation method thereof. Background technique [0002] With the shortage of resources and the increasingly serious environmental problems, the development of environmentally friendly and degradable materials has attracted widespread attention. Polylactic acid and polybutylene succinate have become research hotspots due to their easy availability of raw materials, low toxicity, and complete regeneration. However, the low mechanical strength of polylactic acid and polybutylene succinate limits their application, and the compatibility of the mixture of polylactic acid and polybutylene succinate is not good. Due to its excellent properties such as high melting point, high tensile strength, low relative density, and corrosion resistance, polyethylene has become the resin with the fastest consumption growth rate among the f...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L67/04C08L67/02C08L1/12C08L5/16C08L5/00C08L5/08C08L51/06C08L31/04C08K5/05C08K5/54C08K5/1515C08K5/11B29B9/06
Inventor 肖宇萍
Owner 肖宇萍
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