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Environment-friendly type degradable plastic

A degradable plastic, environmentally friendly technology, applied in the field of packaging materials, can solve the problems of limited degradation degree, low utilization rate of degradable plastics, long degradation cycle of degradable plastics, etc., to increase the degree of degradation, shorten the degradation cycle, improve The effect of toughness

Inactive Publication Date: 2018-09-28
ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, although the country has vigorously developed degradable materials to replace traditional plastic materials, there is still a big gap between the toughness and bearable strength of degradable plastics compared with traditional plastics, and the degradation cycle of degradable plastics is longer. Therefore, the utilization rate of degradable plastics in the market is still relatively low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An environment-friendly degradable plastic, the composition and mass parts of the degradable plastic are: 50 parts of polypropylene, 5 parts of wheat starch, 5 parts of acetate starch, 5 parts of single-layer graphene powder, and 10 parts of calcium carbonate , 5 parts of plasticizer DEHP, 0.8 part of antioxidant phosphite, 0.4 part of UV-531 ultraviolet absorber.

[0022] Specifically, the particle size of the vegetable starch is 5um.

[0023] The processing technology of described degradable plastic is:

[0024] Step 1, weighing each component of the degradable plastic in parts by mass;

[0025] Step 2, put the ingredients of each component into a mixer with a temperature of 35°C and a rotation speed of 800r / min for premixing to obtain a premix;

[0026] Step 3, placing the premixed material in a twin-screw extruder for mixing, extruding, and granulating to obtain pellets;

[0027] Step 4, placing the pellets in a blow molding machine for blow molding to obtain fil...

Embodiment 2

[0030] An environment-friendly degradable plastic, the composition and mass parts of the degradable plastic are: 55 parts of polypropylene, 8 parts of corn starch, 7 parts of acetate starch, 8 parts of single-layer graphene powder, and 12 parts of calcium carbonate , 6 parts of plasticizer DOP, 0.9 parts of antioxidant phosphite, 0.5 parts of AM-101 ultraviolet absorber.

[0031] Specifically, the particle size of the vegetable starch is 6um.

[0032] The processing technology of described degradable plastic is:

[0033] Step 1, weighing each component of the degradable plastic in parts by mass;

[0034] Step 2, put the ingredients of each component into a mixer with a temperature of 40°C and a rotation speed of 900r / min for premixing to obtain a premix;

[0035] Step 3, placing the premixed material in a twin-screw extruder for mixing, extruding, and granulating to obtain pellets;

[0036] Step 4, placing the pellets in a blow molding machine for blow molding to obtain fil...

Embodiment 3

[0039] An environment-friendly degradable plastic, the composition and mass parts of the degradable plastic are: 60 parts of polypropylene, 10 parts of sweet potato starch, 8 parts of acetate starch, 10 parts of single-layer graphene powder, and 15 parts of calcium carbonate , 8 parts of plasticizer DEHP, 1 part of antioxidant phosphite, 0.6 parts of UV-531 ultraviolet absorber.

[0040] Specifically, the particle size of the vegetable starch is 8um.

[0041] The processing technology of described degradable plastic is:

[0042] Step 1, weighing each component of the degradable plastic in parts by mass;

[0043] Step 2, put the ingredients of each component into a mixer with a temperature of 40°C and a rotation speed of 1000r / min for premixing to obtain a premix;

[0044] Step 3, placing the premixed material in a twin-screw extruder for mixing, extruding, and granulating to obtain pellets;

[0045] Step 4, placing the pellets in a blow molding machine for blow molding to o...

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PUM

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Abstract

The invention discloses environment-friendly type degradable plastic. The environment-friendly type degradable plastic consists of the following components in parts by mass: 50 to 60 parts of polypropylene, 5 to 10 parts of plant starch, 5 to 8 parts of acetic ester starch, 5 to 10 parts of graphene powder, 10 to 15 parts of calcium carbonate, 5 to 8 parts of plasticizer, 0.8 to 1 part of an antioxidant and 0.4 to 0.6 part of an ultraviolet absorbent. The plant starch and the acetic ester starch which are added in the degradable plastic shorten the degradation cycle of the plastic and improvethe degradability; and the graphene is added, so that the toughness of the plastic is improved and the service life of the degradable plastic product is prolonged.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to an environment-friendly degradable plastic. Background technique [0002] In recent years, in the existing market in my country, there are many kinds of plastic products made of polyethylene or polypropylene as the main material, which are widely used and used in a large amount. However, the phenomenon of discarded plastic products after use is serious. The recycling rate is low. These plastic products are discarded in the soil, and it is difficult to rot and decompose after up to 200 years. Moreover, when these plastic products are exposed to high temperature or corrosion, they will slowly dissolve and release harmful substances to the human body. Therefore, discarded plastic bags and plastic bottles that can be seen everywhere are gradually destroying our green homes and eroding our life and health. In recent years, although the country has vigorously developed degr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L3/02C08L3/06C08K13/02C08K3/04C08K3/26
CPCC08K2003/265C08L23/12C08L2201/06C08L2205/02C08L2205/03C08L3/02C08L3/06C08K13/02C08K3/042C08K3/26
Inventor 蒋国军
Owner ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY