Preparation method of easily-degradable environmentally-friendly plastic

An environmentally friendly plastic and easy-to-degrade technology, applied in the field of polymer materials, can solve the problems of not being able to use daily necessities, etc., and achieve the effects of simple and easy preparation process, stable storage and low cost

Inactive Publication Date: 2018-09-18
FOSHAN RICH FIELD COMMODITIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the plastic produced in this scheme can meet the requirements of degradable plastics, it cannot be used in daily necessities due to the addition of sludge and other materials

Method used

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  • Preparation method of easily-degradable environmentally-friendly plastic
  • Preparation method of easily-degradable environmentally-friendly plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 Preparation of biological components

[0043] The biological components and mass parts are listed as follows:

[0044]

[0045] The preparation method of the biological component is:

[0046]Grind the chaff of edible fungi to an average particle size of 1.6-1.8 mm, mix it with bamboo fibers with an average length of 1.5 mm and a diameter of 3.8 μm, mix evenly, and dry in an oven at 85°C until the water content is lower than 20%. Secondary crushing, crushing until the average particle size of the mixture is less than 3 μm, performing secondary drying in an oven at 85°C until the water content is less than 10%, and finally mixing with glutinous rice starch evenly, and drying three times in an oven at 44°C until the water content of the mixture is low At 5%, the desired biological components were obtained.

[0047] Among the biological components, the humidity of edible fungus chaff is relatively high, but the drying efficiency is low when it is dried alone....

Embodiment 2

[0049] Example 2 Structural components

[0050] In this example, the iron tailings powder obtained in the gravity separation ore dressing process is used as a structural component. The iron tailings powder has an iron content of less than 2% and the average particle size of the iron tailings powder is 0.1 μm ( Iron tailings powder source: Hubei Daye).

Embodiment 3

[0051] Embodiment 3 Preparation of environmentally friendly plastics

[0052] Environmentally friendly plastic raw material components and mass parts are shown in the following list, wherein the polyvinyl chloride monomer is a commercially available product, the biological component adopts the raw material numbered 8 in Example 1, and the structural component adopts the material in Example 2 The raw material and the plasticizer are mixed with dioctyl phthalate, orthophosphate and ethylene glycol at a mass ratio of 2:0.22:0.57. The coupling agent is a monoalkoxypyrophosphate titanate coupling agent (commercially available), and the crosslinking agent is dicumyl peroxide, diethylenetriamine, and zinc oxide at a mass ratio of 1:1.15: 0.053 mixed. Other additives are a mixture of defoamers, lubricants, surfactant accelerators, and ultraviolet absorbers. The defoamer is silicone defoamer (commercially available), and the surfactant accelerator is sodium lauroyl glutamate. The age...

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Abstract

The invention discloses a preparation method of an easily-degradable environmentally-friendly plastic, and the preparation method comprises the following steps: S01, ultrasonically sterilizing a biological component; S02, mixing a polyvinyl chloride monomer with a plasticizer and other auxiliary agents, dispersing, adding the biological component, uniformly dispersing, adding a structural component, grinding and dispersing; S03, adding a coupling agent and a crosslinking agent into a mixture obtained in the S02, and using a planet type grinding machine for grinding and dispersing for 5-8min at300 to 400 r / min to obtain a desired mixed raw material; S04, using a twin-screw extruder for granulating the mixed raw material obtained in the S03 at the extrusion rate of 3.5-4.5 kg / hand the melting temperature of 205-210 DEG C to obtain the easily-degradable environmentally-friendly plastic. The easily-degradable environmentally-friendly plastic can be used for a long time under the conditionof daily use, and has stable storage property. Compared with plastic products in the prior art, the strength and toughness of the easily-degradable environmentally-friendly plastic are basically thesame as that of the plastic products in the prior art, and after being discarded, the easily-degradable environmentally-friendly plastic can be slowly broken and completely degraded in a hot and humidenvironment, has no pollution to the environment and the human body, and meets the requirements of environmental protection.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a preparation method of easily degradable environmentally friendly plastics. Background technique [0002] The plastics industry has formed a very complete industrial system in the course of years of development, and has become a basic material industry that keeps pace with steel, cement, and wood. As one of the pillar industries of the light industry, the plastics industry maintains a considerable annual growth rate. develop. my country is a big producer of plastic raw materials and a huge consumer of plastic products. Plastic materials are widely used in agriculture, forestry, animal husbandry and fishery, daily life and light and heavy industries, and have become an indispensable means of production. Although plastic materials have the advantages of wide application range and low application cost, the pollution and public nuisance caused by their waste have always...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L97/02C08L3/02C08L91/00C08K13/02C08K5/12C08K5/521C08K3/22C08K5/523C08K5/134
CPCC08L27/06C08K2003/2296C08L2205/035C08L2205/16C08L97/02C08L3/02C08L91/00C08K13/02C08K5/12C08K5/521C08K3/22C08K5/523C08K5/1345
Inventor 谭志恒
Owner FOSHAN RICH FIELD COMMODITIES CO LTD
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