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Expandable polyethylene and production process thereof

A kind of pearl cotton and modified technology, applied in the field of pearl cotton, can solve the problems of poor moisture-proof and waterproof performance of pearl cotton, achieve the effects of excellent dispersibility and surface activity, improve mechanical properties and improve stability

Inactive Publication Date: 2019-12-24
平湖市富利源塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects in the above-mentioned prior art, aiming at the problem of poor moisture-proof and waterproof performance of traditional pearl cotton, and to provide a pearl cotton and its production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: A kind of pearl cotton, its preparation raw material comprises by weight: polyethylene 100 parts, modified VAE emulsion 10 parts, titanate modified calcium carbonate 10 parts, aluminum hydroxide 3 parts, monoglyceride 2 parts , 6 parts of foaming agent, 1 part of talcum powder, 1 part of flame retardant, 5 parts of water glass, 1 part of silane coupling agent; wherein the modified VAE emulsion includes the following materials by weight: 45 parts of VAE, 5 parts of polyvinyl alcohol , 15 parts of vinyl acetate, 1 part of ammonium persulfate, and 1 part of potassium persulfate.

[0028] Adding modified VAE emulsion to the pearl cotton can improve the stability of the pearl cotton connection. During the reaction process, the surface charge of the latex particles will increase, the mutual repulsion between the latex particles will be enhanced, and the mutual coalescence will be reduced, making the system stable.

[0029] The main raw material of the raw materi...

Embodiment 2

[0042] A kind of pearl cotton, its preparation raw material comprises by weight: Its preparation raw material comprises by weight: polyethylene 155 parts, modified VAE emulsion 15 parts, titanate modified calcium carbonate 19 parts, aluminum hydroxide 7 parts, single 3 parts of glycerin, 10 parts of foaming agent, 3 parts of talcum powder, 3 parts of flame retardant, 10 parts of water glass, 3 parts of silane coupling agent, wherein, the modified VAE emulsion includes the following materials by weight: 59 parts of VAE, poly 7 parts of vinyl alcohol, 20 parts of vinyl acetate, 4 parts of ammonium persulfate, 3 parts of potassium persulfate.

[0043] A kind of production technology of pearl cotton, comprises the following steps:

[0044] Step (1), batching, dry 3 parts of talcum powder and 19 parts of titanate-modified calcium carbonate, pass through a 100-150 mesh sieve, add 3 parts of monoglyceride into a high-speed mixer, and mix at 110-120 °C with Stir and mix at a speed of...

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PUM

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Abstract

The invention relates to expandable polyethylene. The expandable polyethylene is prepared from the following raw materials in parts by weight: 100-155 parts of polyethylene, 10-15 parts of modified VAE emulsion, 10-19 parts of titanate modified calcium carbonate, 3-7 parts of aluminum hydroxide, 2-3 parts of monoglyceride, 6-10 parts of a foaming agent, 1-3 parts of talcum powder, 1-3 parts of a flame retardant, 5-10 parts of water glass and 1-3 parts of a silane coupling agent. The modified VAE emulsion is added into the expandable polyethylene, so that the connection stability of the expandable polyethylene can be improved, the surface charges of latex particles are increased in the reaction process, the mutual repulsion effect between latex particles is enhanced, the mutual coalescenceis reduced, and the system is stable.

Description

technical field [0001] The invention belongs to the technical field of pearl cotton, and in particular relates to pearl cotton and a production process thereof. Background technique [0002] EPE pearl cotton has a non-cross-linked closed-cell structure. It is a high-foam polyethylene product extruded from low-density polyethylene (LDPE) as the main raw material. It is also called polyethylene foam cotton. It is a new type of environmentally friendly packaging material. Because it is composed of numerous independent bubbles produced by physical foaming of low-density polyethylene resin, it overcomes the shortcomings of ordinary foam rubber such as fragility, deformation, and poor recovery, and has good water and moisture resistance, shock resistance, sound insulation, heat preservation, and good plasticity. , Strong toughness, recycling, environmental protection, strong impact resistance, etc., also has good chemical resistance. [0003] Since pearl cotton is a high-foaming ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L51/00C08K13/06C08K9/04C08K3/26C08K3/22C08K5/103C08K3/34C08J9/10
CPCC08J9/0023C08J9/0066C08J9/009C08J9/0095C08J9/103C08J9/105C08J9/107C08J2203/04C08J2323/06C08J2451/00
Inventor 吴彬枫许万孙亚平
Owner 平湖市富利源塑业有限公司
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