Biodegradable plastic product material

A technology for degrading plastics and degrading materials, applied in the field of biodegradable plastic products and materials, can solve the problems of slow decomposition, unrecoverable soil, affecting crops to absorb nutrients and water, etc., to achieve resource recycling and reduce greenhouse gases. The effect of emissions

Inactive Publication Date: 2017-03-01
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the main component of plastic is synthetic resin, the decomposition rate is very slow in the natural environment, and it is extremely harmful to the land, changing its pH, affecting the absorption of nutrients and water by crops, resulting in the landfill of soil containing plastic waste for a long time not recovered
If the plastic waste is disposed of by incineration, a large amount of harmful smoke will be produced, polluting the atmosphere
The cheap and easy availability of plastic packaging makes it easy for people to throw it away, causing visual and environmental damage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A biodegradable plastic product material of the present invention is characterized in that it consists of 30kg biodegradable material and 70kg polypropylene plastic, wherein the biodegradable material is soybean protein and starch, and the soybean protein and starch The ratio is 1:3.

[0018] The oxygen transmission rate of the biodegradable plastic film produced by casting method is as low as 1.0(ml·mm) / (m 2 ·d·Pa), the water permeability is as low as 1.9 / (m·s·Pa), the tensile strength can reach 11MPa, and the elongation is as high as 70%.

[0019] The tensile strength of biodegradable plastic parts produced by molding method can reach 45MPa, the bending strength can reach 65MPa, and the density can reach 1.5g / cm 3 , can withstand high temperature of 260 ℃. Using accelerated aging experiments, it is estimated that the natural aging time of biodegradable plastics is 20 years.

Embodiment 2

[0021] A biodegradable plastic product material of the present invention is characterized in that it consists of 35kg biodegradable material and 65kg polypropylene plastic, wherein the biodegradable material is soybean protein and starch, and the soybean protein and starch The ratio is 1:3.

[0022] The oxygen transmission rate of the biodegradable plastic film produced by casting method is as low as 1.1(ml·mm) / (m 2 ·d·Pa), the water permeability is as low as 1.3 / (m·s·Pa), the tensile strength can reach 11MPa, and the elongation is as high as 75%.

[0023] The tensile strength of biodegradable plastic parts produced by molding method can reach 55MPa, the bending strength can reach 60MPa, and the density can reach 1.7g / cm 3 , can withstand high temperature of 270 ℃. Using accelerated aging experiments, the estimated natural aging time of biodegradable plastics is 15 years.

Embodiment 3

[0025] A biodegradable plastic product material of the present invention is characterized in that it consists of 50kg of biodegradable materials and 50kg of polypropylene plastic, wherein the biodegradable materials are soybean protein and starch, and the soybean protein and starch The ratio is 1:3.

[0026] The oxygen transmission rate of the biodegradable plastic film produced by casting method is as low as 1.1(ml·mm) / (m 2 ·d·Pa), the water permeability is as low as 1.9 / (m·s·Pa), the tensile strength can reach 17MPa, and the elongation is as high as 77%.

[0027] The tensile strength of biodegradable plastic parts produced by molding method can reach 50MPa, the bending strength can reach 56MPa, and the density can reach 1.4g / cm 3 , can withstand high temperature of 280 ℃. Using accelerated aging experiments, it is estimated that the natural aging time of biodegradable plastics is 10 years.

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Abstract

The invention relates to a biodegradable plastic product material being composed of, by weight, 30-60% of a biodegradable material and 50-70% of polypropylene plastic, wherein the biodegradable material includes soya bean protein and starch according to the ratio of 1:3. Compared with a conventional synthetic plastic product, the biodegradable synthetic material is better than the common synthetic plastic products in light transmittance, oxygen permeability, heat resistance, toughness, softness, elasticity, tensile strength and anti-aging property. In addition the biomass synthetic plastic is greatly reduced in production cost. The biodegradable plastic product material needs 5-8 months for being completely decomposed in soil into high-quality organic fertilizers.

Description

technical field [0001] The invention relates to a biodegradable plastic product material, which belongs to the field of plastic product materials. Background technique [0002] With the rapid development of the plastics industry, the resulting environmental problems are becoming increasingly serious. The waste of plastic products accounts for 10% of the total amount of urban garbage and 30% of the volume. Since the main component of plastic is synthetic resin, it decomposes very slowly in the natural environment, and it is very harmful to the land, changing its pH, affecting the absorption of nutrients and water by crops, resulting in the landfill of soil containing plastic waste for a long time Cannot be restored. If the plastic waste is disposed of by incineration, a large amount of harmful smoke will be produced, which will pollute the atmosphere. The cheap and easy availability of plastic packaging makes it easy for people to discard it at will, resulting in visual an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L3/02C08L89/00
CPCC08L23/12C08L2201/06C08L2205/03C08L3/02C08L89/00
Inventor 张海斌刘刚林航
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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