High-elasticity polyolefin foamed sheet and manufacturing method thereof

A polyolefin foaming and manufacturing method technology, applied in flat products, other household utensils, applications, etc., can solve problems such as poor hardness and elasticity, and achieve low cost and simple industrial process

Inactive Publication Date: 2013-01-09
FUJIAN ZHENGYI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Foamed sheet, the hardness and elasticity in the

Method used

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Embodiment Construction

[0031] The high-elasticity polyolefin foam sheet that the present invention proposes, the preferred embodiment of formula comprises the following materials: 50 parts of EN8150, 40 parts of KS-340, 10 parts of Vm6102, 20 parts of talcum powder, 1.5 parts of activator zinc oxide powder, stearin 1.0 parts of acid, 0.8 parts of bridging crosslinking agent, 0.7 parts of auxiliary crosslinking agent, 3.5 parts of chemical foaming agent, totaling PHR125.

[0032] The preferred embodiment 1 of the manufacturing method of the highly elastic polyolefin foam board proposed by the present invention includes the following steps, with a 110 liter internal mixer, and a load of 100 kg of mixture can obtain the best mixed rubber condition.

[0033] ⑴ Stir and mix the following materials in the container thoroughly:

[0034] EN8150 40 kg, KS-340 32 kg, Vm6102 8 kg, talcum powder 14 kg, zinc oxide powder 1.2 kg, stearic acid 0.8 kg, cross-linking agent 0.64 kg, auxiliary cross-linking agent 0...

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Abstract

The invention discloses a multi-high-polymer smelting combination of a high-elasticity polyolefin foamed sheet and a manufacturing method thereof. The invention aims to solve the problem that the rebound rate of the existing foamed profile is only 40-45%. The formula disclosed by the invention comprises 50 parts of ethylene-1-octylene copolymer (DOWENGAGE8150), 40 parts of ethylene-hexene-octadecene terpolymer (JPE-KS340) and 10 parts of propylene-ethylene copolymer (EXXONMOBILVitmaxx 6102) (which form the smelting composition), 17.5 parts of talcum powder, 2.5 parts of activating agent, 0.8 part of crosslinking agent, 0.17 part of aid and 3.5 parts of chemical foaming agent, totaling PHR 125. The manufacturing method comprises the following steps: mixing, banburying, mixing, and carrying out secondary thinning to obtain a sheet; and carrying out mold pressure, cross-linking, and foaming at 165 DEG C under the pressure of 200kg/cm<2> for 1.2 minutes per millimeter, thereby manufacturing the polyolefin foamed material of which the elasticity is up to 75-80%.

Description

technical field [0001] The invention relates to a melting combination of various high polymers for improving the high elasticity of foamed boards and a manufacturing method thereof. Background technique [0002] Existing EVA foam boards are generally formed by cross-linking and foaming EVA materials and compounding agents. The resilience of the materials is not high. For example, the midsole of sports shoes is only used as a cushioning device. If it is a sports shoe, it needs a function of high elasticity. [0003] The existing EVA foam material production process steps are: [0004] (1) Mixing, evenly mix the EVA material containing compounding agent and foaming agent; [0005] ⑵ Rolling, rolling the mixture into a sheet body; [0006] (3) Slicing, cutting the sheet body into boards of equal size; [0007] ⑷ Foaming. Weigh the material of the board and carry out the cross-linking foaming process in the hydraulic press to make a foamed board. [0008] Foam board, the har...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/16C08K13/02C08K3/34C08K3/22C08K5/09C08J9/10B29B7/28B29B7/72B29C44/02B29C44/60B29L7/00
Inventor 郭延志
Owner FUJIAN ZHENGYI IND
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