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Low-warpage high-modulus modified polypropylene material and preparation method thereof

A polypropylene material and high modulus technology, applied in the field of modified polypropylene materials, can solve problems such as warping appearance, achieve the effects of improving warping resistance, good fluidity, and improving product warping

Inactive Publication Date: 2015-04-29
SHANGHAI PRET COMPOSITES +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the addition of these fillers can cause warping and appearance problems

Method used

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  • Low-warpage high-modulus modified polypropylene material and preparation method thereof

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Embodiment Construction

[0018] Below in conjunction with embodiment, the present invention is described in further detail.

[0019] In the composite material formulations of the examples and comparative examples, the polypropylene is a homopolypropylene produced by China Shanghai Petrochemical Co., Ltd., the trade name is M1200HS, and its melt flow rate is 11g / 10min (test conditions: 230 ° C × 2.16 Kg); Described whisker is produced by Feng Zhu Whisker Company, and trade name is NP-YW2, and its aspect ratio is at 30~40, and molecular formula is MgSO 4 5Mg(OH) 2 ·3H 2 O; described anti-warping nucleating agent is HPN-68L produced by Milliken Company, and its molecular formula is C 9 h 10 Na 2 o 4 The main antioxidant is selected from DSTP produced by British ICE company, whose chemical name is octadecyl thiodipropionate, and 3114 produced by Ciba company, whose chemical name is 3,5-di-tert-butyl-4-hydroxybenzyl phosphoric acid diethyl ester. The auxiliary antioxidant is 168 produced by Ciba Com...

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Abstract

The invention discloses a low-warpage high-modulus modified polypropylene material and a preparation method thereof. The low-warpage high-modulus modified polypropylene material is prepared from the following raw materials in percentage by weight: 80-96.8 percent of polypropylene, 3-15 parts of a crystal whisker, 0.1-3 percent of an anti-warpage nucleating agent, 0.1-2 percent of an antioxidant and 0-2 percent of other auxiliaries. By the utilization of the anti-warpage property of the anti-warpage nucleating agent, the anti-warpage capability of a PP (Polypropylene) matrix is improved; the crystal whisker is combined with the anti-warpage nucleating agent to perform synergetic enhancement, and the prepared modified polypropylene material also solves the product warpage problem caused by the addition of the crystal whisker while the high rigidity of polypropylene is kept; meanwhile, the prepared material has good liquidity and can be used for preparing thin-walled, high-strength and high-modulus plastic products.

Description

technical field [0001] The invention relates to a modified polypropylene material with low warpage and high modulus, which is a modified polypropylene material with simple process, high modulus and high strength, and can be used to prepare thin-walled, high-strength and high-modulus materials. plastic products. Background technique [0002] Polypropylene is one of the five general-purpose plastics. Due to its rich source of raw materials, low price, easy processing and excellent overall performance, it has a wide range of uses and has become the fastest-growing variety of general-purpose resins. It is widely used in automotive interior and exterior decoration hardware, electronics and home appliances. However, an obvious disadvantage of polypropylene is that the molding shrinkage is relatively large, the creep resistance is poor, and the dimensional stability of the product is poor. When applied to automotive interiors such as automotive dashboards and door panels, the req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/04C08K7/08C08K5/098B29C47/92B29C48/92
CPCC08K13/04B29C48/92C08K5/098C08K7/08C08K2201/016C08L23/12
Inventor 屈国梁张鹰张祥福周文
Owner SHANGHAI PRET COMPOSITES
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