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Method for producing high-foaming EPE pearl wool by use of carbon dioxide foaming agent

A carbon dioxide and foaming agent technology, applied in the field of polymer material processing, can solve the problems of easily igniting gas-containing sheets, low cost, flammability, etc., achieving ideal foaming effect, good flame retardancy, cushioning and shockproofing good effect

Inactive Publication Date: 2013-05-22
ANHUI CHANGCHENG AUTOMOBILE INNER DECORATION
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Problems solved by technology

[0003] At present, most of the EPE pearl cotton products on the market in our country are made of low-density polyethylene resin (LDPE) through butane physical foaming. Butane gas is used as the foaming agent, which has low cost, but its disadvantages Because it is flammable, the finished thin sheet will generate a large amount of static charge due to surface friction during the production and coiling process, and the sparks generated by static electricity can easily ignite the sheet containing gas, causing a fire

Method used

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Embodiment Construction

[0016] A kind of method that adopts carbon dioxide blowing agent to produce high foaming EPE pearl cotton, comprises the following steps:

[0017] (1) Preparation of raw materials, in parts by weight (kg): LDPE 80, LLDPE 20, EVA 35, talcum powder 20, light calcium carbonate 12, water glass 28, plant straw powder 13, modified tree ash 2, isopropyl Tris(dioctyl pyrophosphate acyloxy) titanate 0.8, glyceryl monostearate 0.6, blowing agent carbon dioxide 0.07.

[0018] (2) Dry the talcum powder and light calcium carbonate, pass through a 150-mesh sieve, add isopropyl tris (dioctyl pyrophosphate acyloxy) titanate to a high-speed mixer, and set the temperature at 110 ° C at 1000 rpm Stir and mix at a high speed for 20 minutes, then add water glass and continue stirring for 10 minutes, then add plant straw powder and blend at a speed of 2000rpm for 6 minutes, send it to a granulator for granulation, control the particle size to 0.2mm, and dry to obtain plant straw Powder-coated ...

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Abstract

The invention discloses a method for producing high-foaming EPE pearl wool by use of a carbon dioxide foaming agent. The EPE pearl wool is prepared from the following raw materials in parts by weight: 60-100 parts of LDPE, 0-40 parts of LLDPE, 30-40 parts of EVA, 15-25 parts of talcum powder, 10-15 parts of light calcium carbonate, 20-30 parts of water glass, 10-15 parts of plant straw powder, 2-3 parts of modified tree ash, 0.5-1 part of isopropyl tri(dioctylpyrophosphate)titanate, 0.5-0.8 part of glycerin monostearate and 0.05-0.1 part of foaming agent carbon dioxide. Through the invention, the produced EPE pearl wool has the advantages of high elasticity, light weight, softness, high strength, good impact resistance, ideal foaming effect, uniform pores, fineness and compactness, good buffer shock prevention, good flame retardance, chemical corrosion resistance, aging resistance and durability.

Description

technical field [0001] The invention relates to a method for producing high-foaming EPE pearl cotton by using a carbon dioxide foaming agent, and belongs to the field of polymer material processing. Background technique [0002] Polyethylene foam (EPE), commonly known as pearl cotton, is a new type of environmentally friendly packaging material with high cushioning capacity. It is one of the important cushioning materials in modern transportation packaging. It has light weight, flexibility, friction resistance, and excellent Energy absorption performance, incineration treatment and other performance characteristics, and overcome the shortcomings of EPS (pre-expanded polystyrene), pulp molding and other products that are fragile, easy to deform, poor recovery and poor vibration resistance. At the same time, EPE has a series of superior performance characteristics such as heat preservation, moisture resistance, friction resistance, and corrosion resistance. After adding antist...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L97/02C08J9/12C08K13/06C08K9/10C08K3/34C08K3/26C08K5/103C08K9/04C08K9/02
Inventor 李大周李振腾李振飞
Owner ANHUI CHANGCHENG AUTOMOBILE INNER DECORATION
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