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Degradable plastic

A technology for degrading plastics and plasticizers, applied in the field of plastic raw materials, can solve the problems of poor air permeability, not widely used, and high production costs, and achieve the effects of improving tensile strength, shortening degradation time, and improving practicability

Inactive Publication Date: 2015-09-09
ZHANGJIAGANG SHANMU NEW MATERIAL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, although polylactic acid resin can be used to produce plastic products that can be degraded, its production cost is high and its air permeability is poor, so it has not been widely used.

Method used

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  • Degradable plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A degradable plastic, the mass parts of the degradable plastic are composed as follows: 40 parts of corn starch microspheres, 12 parts of polyamide, 5 parts of polyhydroxybutyrate, 2 parts of glass fiber, 0.8 parts of zinc stearate, plant 1.2 parts of fiber, 0.8 parts of dispersant, 6 parts of photosensitizer, 8 parts of plasticizer, and 0.8 part of coupling agent.

[0022] Wherein, the plant fiber is selected from coconut fiber, and the length of the coconut fiber is 4.5 μm.

[0023] Wherein, the dispersant is selected from polysodium methacrylate.

[0024] Wherein, the photosensitizer is benzophenone.

[0025] Wherein, the plasticizer is tributyl acetate.

[0026] Wherein, the coupling agent is a silane coupling agent, specifically, the model is KH550.

Embodiment 2

[0028] A degradable plastic, the mass parts of the degradable plastic are composed as follows: 50 parts of cornstarch microspheres, 15 parts of polyamide, 7.5 parts of polyhydroxybutyrate, 7 parts of glass fiber, 1.6 parts of zinc stearate, plant 2.4 parts of fiber, 2.8 parts of dispersant, 8 parts of photosensitizer, 12 parts of plasticizer, and 1.8 parts of coupling agent.

[0029] Wherein, the plant fiber is selected from coconut fiber and corn stalk fiber; the length of the two kinds is 4.5 μm.

[0030] Wherein, the dispersant is selected from sodium polymethacrylate and ammonium polymethacrylate.

[0031] Wherein, the photosensitizer is selected from benzoin dimethyl ether.

[0032] Wherein, the plasticizer is selected from tributyl acetate and dibutyl phthalate.

[0033] Wherein, the coupling agent is a silane coupling agent, specifically, the models are KH550 and DL602.

Embodiment 3

[0035] A degradable plastic, the mass parts of the degradable plastic are composed as follows: 45 parts of cornstarch microspheres, 15 parts of polyamide, 8 parts of polyhydroxybutyrate, 6 parts of glass fiber, 1.6 parts of zinc stearate, plant 3.2 parts of fiber, 3.2 parts of dispersant, 8 parts of photosensitizer, 12 parts of plasticizer, and 1.6 parts of coupling agent.

[0036] Wherein, the plant fiber is selected from coconut fiber, corn stalk fiber and rice straw fiber; the length of the fiber is 5 μm.

[0037] Wherein, the dispersant is selected from sodium polymethacrylate, ammonium polymethacrylate and polyphosphate.

[0038] Wherein, the plasticizer is a mixture of tributyl acetate, dibutyl phthalate and diethyl phthalate.

[0039] Wherein, the coupling agent is a silane coupling agent, specifically, the models are KH550 and DL602.

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Abstract

The invention relates to the technical field of plastic raw materials, in particular to a degradable plastic. The degradable plastic comprises the following materials in parts by mass: 40-60 parts of corn starch microspheres, 12-18 parts of polyamide, 5-10 parts of polyhydroxybutyrate, 2-12 parts of glass fibers, 0.8-2.4 parts of zinc stearate, 1.2-3.6 parts of plant fibers, 0.8-4.8 parts of dispersants, 6-10 parts of a photosensitizer, 8-16 parts of plasticizers and 0.8-2.8 parts of coupling agents. As the corn starch fibers and the plant fibers which are both degradable materials are added, and benzophenone or benzoin dimethyl ether is selected as the photosensitizer, the degradation efficiency can be effectively improved, and the degradation time is shortened; meanwhile, as the plasticizers, the coupling agents and the glass fibers are added, the tensile strength, the elongation at break, the right-angle tearing load, the physical properties and the practicability of the degradable plastic are improved.

Description

technical field [0001] The invention relates to the technical field of plastic raw materials, in particular to a degradable plastic. Background technique [0002] Plastic raw material is a kind of synthetic living natural polymer compound, which can be arbitrarily kneaded into various shapes and finally can keep the shape of the material or plastic material products. At present, plastic is closely related to people's daily life. It has the advantages of convenience and durability, but it has the problem of being difficult to degrade, causing environmental pollution. [0003] Degradable plastics are a class of products whose performance can meet the requirements of use, the performance remains unchanged during the storage period, and can be degraded into environmentally friendly plastics under natural environmental conditions after use. Therefore, it is also called degradable plastics. Environmentally degradable plastic. [0004] Although polylactic acid resin can be used t...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08L77/00C08L67/04C08L97/02C08K13/04C08K7/14C08K5/098C08K5/07C08K5/101C08K5/06C08K5/12
Inventor 范佳晨赵云龙徐丹徐凯徐再赵维达
Owner ZHANGJIAGANG SHANMU NEW MATERIAL TECH DEV
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