Foam forming method for completely biological degradable plastic tubleware and drinking ware

A technology of biodegradable plastics and foam molding, which is applied in the field of international patent classification C08L97/00 "compositions containing lignin materials", can solve problems such as unseen production, achieve easy recycling and treatment, and have broad market prospects. Wide range of effects

Inactive Publication Date: 2005-03-02
胡靖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main products are starch-filled biodegradable plastics, additive-based photodegradable plastics, and fully degradable polymer-based degradable plastics. No production reports have been seen yet.

Method used

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  • Foam forming method for completely biological degradable plastic tubleware and drinking ware

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: 800 parts of corn flour, 60 parts of paper pulp, 60 parts of PVA, 50 parts of rice husk powder, 30 parts of plasticizer, and 300 parts of water are added; stir evenly in the mixer, after metering, send into the foaming machine In the mold, foam at 150-160°C for 3 minutes, and then apply a waterproof layer to obtain the product.

Embodiment 2

[0019] Embodiment 2: 800 parts of potato starches, 50 parts of PVA, 50 parts of paper pulp, 100 parts of orange stalk powder, 30 parts of plasticizers, 280 parts of water; Foaming, stay at 160°C for 3 minutes to foam, the product is coated with polyamide waterproofing agent, dried to obtain the finished product, and sent to the finished product warehouse.

Embodiment 3

[0020] Embodiment 3: 800 parts of cassava starch, 60 parts of PVA, 40 parts of paper pulp, filler: 100 parts of rice husk powder or orange stalk powder, 30 parts of plasticizers, 300 parts of water; Mix in blender, send into micro-skin furnace formula In the mold of the foaming machine, foam at 150-160°C for 1 minute. After the product is coated with a strong amine waterproof layer, the product is dried and put into storage.

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Abstract

The present invention discloses the formulation and foaming formation process of biodegradable starch-base plastic tableware. The tableware is produced with starch as main material, PVA, plasticizer, foaming agent, stuffing and other supplementary material, and through mixing, foaming, formation and surface treatment. The present invention has improved toughness and high temperature water tolerance, and is biodegradable completely.

Description

technical field [0001] The invention relates to a formula and a preparation method of a starch-based fully biodegradable plastic tableware, and belongs to the technical field of international patent classification C08L97 / 00 "compositions containing lignin materials". Background technique [0002] Nowadays, plastics are widely used in the world, and the output is increasing day by day. At present, it has reached 140 million tons per year. However, after extensive use, about 50 million tons of plastic waste will cause "white pollution" to soil, rivers, oceans and the environment. It has attracted the attention of the whole world; among them, the plastic waste in the United States and Western Europe has reached 30 million tons per year, and that in Japan is 12 million tons. In my country, it is 8 million tons per year, and the annual plastic waste in Shanghai alone reaches more than 300,000 tons. In order to solve the environmental pollution caused by plastic waste. Photodegr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/24C08L3/02
Inventor 胡靖冯铮
Owner 胡靖
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