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High foaming polyethylene alloy material and preparation method therefor

A polyethylene and high-foaming technology, applied in the field of high-foaming polyethylene alloy material and its preparation, can solve problems such as insufficient hardness, and achieve the effects of high hardness and good cushioning and shock absorption effect.

Inactive Publication Date: 2015-11-25
上海心尔新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The foamed material obtained by this method has good elasticity, belongs to soft foam body, and the hardness is not enough, and this method is not suitable for foam molding of various products.

Method used

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  • High foaming polyethylene alloy material and preparation method therefor
  • High foaming polyethylene alloy material and preparation method therefor
  • High foaming polyethylene alloy material and preparation method therefor

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preparation example Construction

[0041] A preparation method of high-foaming polyethylene alloy material, comprising the following preparation steps:

[0042] 1) The raw material components are weighed according to a certain weight ratio, and then added to the mixed product after mixing in the internal mixer. The mixing temperature is controlled at 150°C-160°C, and the mixing time is controlled at 5 minutes;

[0043] 2) Extrude and granulate the kneaded material in step 1) through a twin-screw extruder water rod to obtain a high-foaming polyethylene alloy material, wherein the extruder speed is set to 300rpm, and the six-stage processing temperature is set to 135°C, 140°C, 155°C, 160°C, 160°C, 155°C;

[0044] 3) The foamed alloy material prepared in step 2) is heated in a foaming mold, and then foamed and molded, wherein the foaming temperature is set at 200° C., and the foaming time is 10 minutes to 20 minutes.

[0045] The density of the foamed product made by the above steps is 0.05g / cm 3 -0.12g / cm 3 , ...

Embodiment 1

[0048]Weigh the following raw material components by weight: 100 parts of Fushun ethylene HDPE2911, 2 parts of PP1-g-γ-(methacryloyloxy)propyltrimethoxysilane, 10 parts of N,N-dinitrosopenta Methyltetramine, 1 part of light calcium carbonate, 5 parts of stearic acid, 0.5 part of oleic acid amide, 0.5 part of vinyltrimethoxysilane, 0.2 part of dicumyl peroxide (DCP), 0.1 part of 4,4 '-Thio(3-methyl-6-tert-butylphenol), and add the above raw material components into the internal mixer to knead the kneaded product, and control the kneading temperature at 150°C-160°C during kneading , the kneading time is controlled at 5 minutes; the kneaded material is extruded and granulated by twin-screw extruder water strands to obtain high-foaming polyethylene alloy material, the extruder speed is set to 300rpm, and the six-stage processing temperature is set to 135 ℃, 140°C, 155°C, 160°C, 160°C, 155°C; put the prepared high-foaming polyethylene alloy material in a foaming mold and heat it to...

Embodiment 2

[0050] Weigh the following raw material components by weight: 100 parts of Panjin Petrochemical LLDPE0209AA, 10 parts of PP1-g-γ-(methacryloyloxy)propyltrimethoxysilane, 10 parts of 4,4ˊ-oxidized dibenzenesulfonyl hydrazide , 5 parts of light calcium carbonate, 0.5 parts of PE wax, 3 parts of oleic acid amide, 2 parts of vinyltriethoxysilane, 5 parts of benzoyl peroxide (BPO), 0.5 parts of antioxidant 4,4'- Thio (3-methyl-6-tert-butylphenol), and the above-mentioned raw material components are added into an internal mixer and mixed to obtain a mixed product. During mixing, the mixing temperature is controlled at 150°C-160°C. The kneading time is controlled at 10 minutes; the kneaded material is extruded and granulated by a twin-screw extruder water rod to obtain a high-foaming polyethylene alloy material, wherein the extruder speed is set to 300rpm, and the six-stage processing temperature is set to 135°C, 140°C, 155°C, 160°C, 160°C, 155°C; the prepared high-foaming polyethyle...

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Abstract

The invention relates to the technical field of macromolecular alloys, particularly a high foaming polyethylene alloy material and a preparation method therefore. The high foaming polyethylene alloy material comprises the following raw materials in parts by weight: 100 parts of polyethylene resin, 2-10 parts of PP-g-gamma-(methyl acryloyl oxy)propyl trimethoxy silane, 1-10 parts of a foaming agent, 1-15 parts of calcium carbonate, 0.5-5 parts of a lubricant, 0.5-3 parts of a dispersant, 0.5-2 parts of a coupling agent, 0.2-5 parts of a crosslinking agent and 0.1-0.5 part of an antioxidant. By adopting the technical scheme, the high foaming polyethylene alloy material is suitable for die forming and foaming of products in various shapes and pressure-free forming and foaming; the foamed body not only is highly foamed and is high in hardness and good in buffering and damping effect, but also can be used in the field of building materials, packaging, light industry and the like and further can be used for meeting the requirements in military industry and marine industry on buffering and shock resistance, light weight of equipment, filling of specially shaped products and the like.

Description

technical field [0001] The invention relates to the technical field of polymer alloys, in particular to a high-foaming polyethylene alloy material and a preparation method thereof. Background technique [0002] With the development of the national economy, high-sensitivity, high-precision electronic equipment, optical equipment, instruments and meters, etc. require good quality and performance packaging. In recent years, the development of EPS and pearl cotton EPE has made great progress in meeting this requirement. [0003] However, pearl cotton is soft and EPS is brittle, so it is difficult to meet the requirements of some high-end packaging fields, such as high strength, good thermal insulation and sound insulation, good cushioning and shock absorption, low thermal conductivity, and complex mold molding. [0004] Invention patent CN102558647A provides a method for preparing high-performance foamed polyethylene products. The foamed polyethylene is physical foaming, which ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L51/06C08K13/02C08K5/20C08K5/09C08K3/26C08K5/098C08J9/10
CPCC08L23/06C08J9/103C08J9/105C08J9/107C08L23/0815C08L2203/14C08L2205/02C08L2205/03C08L2207/062
Inventor 汪根林王梓刚
Owner 上海心尔新材料科技股份有限公司
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