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Low temperature-resistant reinforced PP composite material and preparation method thereof

A composite material and low-temperature-resistant technology, which is applied in the field of plastic modification, can solve the problems of high impact resistance and failure to meet the use requirements, and achieve the effect of meeting the use requirements, excellent low-temperature resistance, and expanding the application range

Inactive Publication Date: 2014-03-26
QINGDAO DADU NEW MATERIAL TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] However, none of the above-mentioned methods in the prior art can meet the requirements of use, especially for bumpers and instrument panels on automobiles, which require high impact resistance of materials at low temperatures, so the formulation of low-temperature-resistant reinforced PP composite materials is studied It is of great significance to improve the performance of the product and expand the application range of the product

Method used

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Embodiment Construction

[0022] The present invention will be further described below through specific embodiments.

[0023] The technical solution provided in this embodiment is: a low temperature resistant reinforced PP composite material, which is composed of the following components in mass percentage: homopolymer PP accounts for 25%-40%, copolymer PP accounts for 30%-49%, talc powder and The cold-resistant agent accounts for 15%-25%, and the antioxidant, lubricant and coupling agent are the balance.

[0024] Wherein, the homopolymer PP adopts T30S.

[0025] Wherein, the copolymerized PP adopts F800E.

[0026] Wherein, the cold resistance agent adopts dioctyl adipate, diisodecyl adipate, dioctyl azelate or dioctyl sebacate.

[0027] Among them, tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester is used as the antioxidant.

[0028] The preparation method of the above-mentioned low-temperature-resistant reinforced PP composite material provided in this embodimen...

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Abstract

The invention belongs to the field of plastic modification technology and especially relates to a low temperature-resistant reinforced PP composite material and a preparation method thereof. The PP composite material comprises the following components by mass: 25 to 40% of homopolymerized PP, 30 to 49% of copolymerized PP and 15 to 25% of talcum powder and a cold resistant agent, with the balance being an anti-oxidant, a lubricant and a coupling agent. The preparation method comprises the following steps: blending; extrusion; and granulation. The composite material provided by the invention can maintain good toughness at low temperature conditions and meets requirements on usage of the PP composite material at a low temperature.

Description

technical field [0001] The invention belongs to the technical field of plastic modification, and in particular relates to a low-temperature-resistant reinforced PP composite material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a general-purpose plastic resin with a wide range of sources and low prices, and has a very wide range of uses. It has high crystallinity and regular structure, so it has excellent mechanical properties. The absolute value of the mechanical properties of polypropylene is higher than that of polyethylene, but it is still a relatively low variety in plastic materials, and its tensile strength can only reach 30 MPa or a slightly higher level. Polypropylene with a larger isotactic index has higher tensile strength, but as the isotactic index increases, the impact strength of the material decreases, but it does not change after falling to a certain value. [0003] Temperature and loading rate have a great infl...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/12C08K13/02C08K3/34C08K5/11C08K5/134B29B9/06B29C47/92B29C48/92
CPCB29C48/92C08L23/14B29B9/06B29C2948/92704C08L23/12C08K13/02C08K3/34C08K5/11C08K5/1345
Inventor 赵成方
Owner QINGDAO DADU NEW MATERIAL TECH
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