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A wire drawing process and application of starch degradable plastic

A technology for degrading plastics and starches, applied in filament forming treatment, textile and papermaking, melt spinning, etc., can solve the problems of poor processing performance, short life, difficult to popularize and apply on a large scale, improve processing performance, strengthen mechanical performance, the effect of improving the pulling performance

Active Publication Date: 2017-07-11
DONGGUAN FANGZHONG SPORT PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the production process of starch-degradable plastics is very mature. However, the strength, stretchability and light transmittance of starch-degradable plastics are poor, and the degradation time is difficult to control, and the life is short. Due to poor processability, it is difficult to draw For further processing into silk, due to the above-mentioned defects in the existing starch-degradable plastics, it is difficult to apply them on a large scale

Method used

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  • A wire drawing process and application of starch degradable plastic

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Embodiment 1

[0016] A wire drawing process of starch degradable plastics, comprising the following steps:

[0017] 1) First, weigh the starch-degradable plastic with a weight percentage of 90%, the isocyanate compatibilizer with a weight percentage of 0.5%, and the acrylic acid additive with a weight percentage of 9.5%, and mix the above-mentioned starch-degradable plastic and isocyanate compatibilizer and acrylic acid additives were stirred evenly at 40°C;

[0018] 2) Heating the uniformly stirred material in step 1 in a single-screw extruder, extruding monofilament or flat filament at 120°C.

[0019] Among them, compatibilizers and additives make the chemical bonds of starch degradable plastics form double bonds, and the intermolecular double bonds polymerize to strengthen the connection between molecular chains, which is beneficial to the longitudinal arrangement between molecular chains, thereby improving the degradability of starch. The tensile properties, strength and flexibility of...

Embodiment 2

[0021] A wire drawing process of starch degradable plastics, comprising the following steps:

[0022] 1) First, weigh the starch-degradable plastic with a weight percentage of 99%, the titanate compatibilizer with a weight percentage of 0.5%, and the acetoacrylic acid additive with a weight percentage of 0.5%, and mix the above-mentioned starch-degradable plastic, titanium Stir the ester compatibilizer and acetoacrylic acid additives evenly at 70°C;

[0023] 2) Heating the uniformly stirred material in step 1 in a single-screw extruder, extruding monofilament or flat filament at 220°C.

Embodiment 3

[0025] A wire drawing process of starch degradable plastics, comprising the following steps:

[0026] 1) First, weigh the starch-degradable plastic with a weight percentage of 80%, the methyl acrylate compatibilizer with a weight percentage of 10%, and the polyester acrylic acid additive with a weight percentage of 10%, and mix the above-mentioned starch-degradable plastic, Methyl acrylate compatibilizer and polyester acrylic additive are stirred evenly at 50°C;

[0027] 2) Heating the uniformly stirred material in step 1 in a single-screw extruder, extruding monofilament or flat filament at 180°C.

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Abstract

The invention relates to the technical field of degradable plastics and an application of the degradable plastics, and in particular relates to a drawing process and application of the starch degradable plastics. The process comprises the following steps of 1) respectively weighing 80-99 percent by weight of starch degradable plastics, 0.5-10 percent by weight of ester compatilizers and 0.5-10 percent by weight of aids-acrylic assistants, and uniformly stirring the starch degradable plastics, the ester compatilizers and the aids-acrylic assistants at the temperature of 40-70 DEG C; 2) adding the materials which are stirred uniformly in the step 1 in a single-screw extruding machine, and extruding monofilaments or ribbon-like filaments at the temperature of 120-220 DEG C. Compared with the prior art, the drawing process of the starch degradable plastics has the advantages that the starch degradable plastics can be drawn into filaments, and the filaments are high in flexibility, high in intensity, high in tensile strength and high in mechanical performance; the processing performance of the materials can be obviously improved; the drawn filaments can be widely applied to the fields of silk ribbons, threads, nets, braids, luggage, handbag cloth or curtains and the like and have wide application.

Description

technical field [0001] The invention relates to the technical field of degradable plastics and their applications, in particular to a wire drawing process and applications of starch-degradable plastics. Background technique [0002] Plastics have brought various conveniences to people's daily life, but because organic polymers are difficult to degrade, they have caused serious pollution. The "white pollution" of plastics threatens the ecological environment and is a worldwide problem. The emergence of environmentally friendly degradable plastics has pointed out the development direction for the future plastics industry. [0003] At present, the production process of starch-degradable plastics is very mature. However, the strength, stretchability and light transmittance of starch-degradable plastics are poor, and the degradation time is difficult to control, and the life is short. Due to poor processability, it is difficult to draw To be further processed into silk, because ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/00C08L3/02C08K5/205
CPCC08K5/09C08K5/10C08K5/101C08K5/29C08L2201/06D01D1/00D01D5/08C08L3/02
Inventor 赵奎
Owner DONGGUAN FANGZHONG SPORT PROD
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