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Polypropylene foaming bead formed body and preparation method thereof

A technology of foaming beads and polypropylene, applied in the field of polymers, can solve the problems of increasing process complexity and uncertainty, increasing costs, etc.

Active Publication Date: 2014-05-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires an additional step of blending, which increases the complexity and uncertainty of the process, and also increases the cost

Method used

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  • Polypropylene foaming bead formed body and preparation method thereof
  • Polypropylene foaming bead formed body and preparation method thereof
  • Polypropylene foaming bead formed body and preparation method thereof

Examples

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Embodiment Construction

[0039] The following examples further illustrate the present invention, but the scope of the present invention is not limited thereto.

[0040] The raw materials and equipment used in the following examples and comparative examples include:

[0041] Ordinary random copolymer polypropylene: China Petroleum & Chemical Corporation Shanghai Petrochemical Company, grade M800E;

[0042] Silica: Tianjin Guangfu Fine Chemical Research Institute, analytical pure;

[0043] Deionized water: Beijing Research Institute of Chemical Industry of China Petroleum & Chemical Corporation;

[0044] Sodium dodecylbenzene sulfonate: Tianjin Guangfu Fine Chemical Research Institute, analytical pure;

[0045] Kaolin: Bailingwei, ACROS, analytically pure;

[0046] Aluminum sulfate: Tianjin Guangfu Technology Development Co., Ltd., analytical pure;

[0047] Underwater pelletizing system: Labline 100, BKG, Germany;

[0048] Melt tensile testing machine: Rheotens TM 97, Goettfert, Germany;

[0049] Density tester: CPA...

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Abstract

The invention provides a polypropylene foaming bead formed body and a preparation method thereof. The preparation method comprises the following steps: mixing polypropylene foaming beads having different foaming rates and prepared by using wide-molecular-weight-distribution high-melt-strength polypropylene as a raw material in proportion, and carrying out thermal molding of the above obtained mixed foaming beads to obtain the foamed body with good surface flatness and tight adhesion. The formed body can be widely applied to the heat insulation tableware field, the automobile interior decorative part field, the finishing material interlayer field, the product damping packaging field and the like. Additionally, the molded body can be recycled, causes no secondary pollution, and accords with circular economy requirements.

Description

Technical field [0001] The invention relates to the field of polymers, in particular to a polypropylene foamed bead molded body and a preparation method thereof. Background technique [0002] Polypropylene series resin has good heat resistance, mechanical strength, processability, recyclability and other properties, so its application fields are becoming more and more extensive. The polypropylene foam molded product obtained by in-molding polypropylene resin foam particles retains the excellent properties of polypropylene resin, and also has characteristics such as cushioning, thermal insulation, and light weight, so it is widely used Used in packaging materials, construction materials, or shock-absorbing materials for vehicles. [0003] The polypropylene resin foamed particle molded body prepared by in-mold molding of the polypropylene resin foamed particle has heat resistance and resistance compared to the polystyrene resin foamed particle molded body used for similar purposes. ...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08J9/14C08F210/16
CPCC08F210/16C08J9/0066C08J9/16C08J2323/14C08L23/14C08L2205/025C08L2205/03C08L2308/00C08L2314/02C08F210/06
Inventor 张师军郭鹏乔金樑吕明福刘有鹏尹华
Owner CHINA PETROLEUM & CHEM CORP
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