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Shock-absorption foamed plastic preparing method

A technology of foam and foaming agent is applied in the field of preparation of shock-absorbing foam and can solve problems such as burning

Active Publication Date: 2016-02-17
EVA GLORY INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the above-mentioned method is used to prepare the shock-absorbing foam whose distance between the side of the protrusion 2 away from the base 1 and the base 1 is greater than 2mm, the surface of the protrusion 2 will be scorched.

Method used

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  • Shock-absorption foamed plastic preparing method
  • Shock-absorption foamed plastic preparing method
  • Shock-absorption foamed plastic preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Prepare shock-absorbing foam

[0058] Step (1): Select the required ingredients and their contents according to Table 1, mix and stir the ingredients evenly to prepare a mixture.

[0059] Table 1

[0060]

[0061] Step (2): knead the mixture obtained in step (1) at 130° C. for 10 minutes, and then extrude to obtain an embryonic body (a thin sheet with a thickness ranging from 1 to 8 mm).

[0062] Step (3): The primary body obtained in step (2) is subjected to micro-processing such as pulverization, granulation or granulation to form a plurality of fragments or granules with a particle size ranging from 3 to 6 mm and a volume range of 27~196mm 3 embryo body.

[0063] Step (4): Put the embryo body obtained in step (3) into a mold and place it on a hot press table for molding and foaming (temperature is 170°C, pressure is 150kg / cm 2 ), after 12 minutes, a shock-absorbing foam was obtained.

[0064]

[0065] refer to figure 2 , the shock-absorbing foam prepared ...

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Abstract

A shock-absorption foamed plastic preparing method includes the following steps that (1) a mixture is prepared, wherein the mixture comprises base material components, a foaming agent and a bridging agent, and the base material components contain the major base material and the minor base materials; (2) the mixture is subjected to mixing and extrusion to obtain a primary embryoid body; (3) micronization processing is conducted on the primary embryoid body so that multiple embryoid bodies with the particle sizes ranging from 1 mm to 20 mm can be formed; and (4) the embryoid bodies are subjected to foaming molding to obtain shock-absorption foamed plastic. When the shock-absorption foamed plastic containing at least one emergence with the emergence length larger than 2 mm is prepared through the method, the surface of the emergence is free of burning.

Description

technical field [0001] The invention relates to a preparation method of foam, in particular to a preparation method of shock-absorbing foam. Background technique [0002] Plastic products have become one of the indispensable products in modern people's life, especially the foam which is formed by plastic foam and has material properties such as light weight, wear resistance, insulation, impact resistance, etc., is very suitable as a shock-absorbing material, so It is often used in body protective equipment, sports equipment protective equipment or packaging materials for precision instruments and equipment. [0003] China Taiwan Patent Publication No. 200842154 discloses a method for preparing a shock-absorbing foam, which is to knead and extrude a mixture to form a primordial body, and then directly foam the primordial body to obtain a shock-absorbing foam. Wherein, the mixture includes a main substrate containing ethylene-vinylacetate copolymer (ethylene-vinylacetatecopol...

Claims

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Application Information

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IPC IPC(8): B29C44/02B29K31/00
Inventor 李文生
Owner EVA GLORY INDAL