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Reinforced modified PA6 composition

A composition and modification technology, applied in the field of polymer materials, can solve the problems such as impact resistance and tensile properties need to be improved, warping easily, low dimensional stability, etc., to reduce volume shrinkage and resist notch impact. performance, the effect of improving mechanical properties

Inactive Publication Date: 2017-10-17
宁波市特尔佳塑料科技有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Because polyamide 6 contains a large number of polar groups, it is easy to absorb water, and at the same time, it has a large shrinkage rate after molding, is prone to warping, has low dimensional stability, is sensitive to notches, and needs to be improved in impact resistance and tensile properties.

Method used

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  • Reinforced modified PA6 composition
  • Reinforced modified PA6 composition

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Embodiment Construction

[0021] The technical solutions of the present invention will be further illustrated and described below through specific embodiments.

[0022] PA6 uses polymer slices with a relative viscosity of 3.0 or more, and uses Ultramid B35, a product of BASF in Germany, with a relative viscosity of 3.3 and a number average molecular weight of 24,000.

[0023] Ultra-high molecular weight PE adopts RCH 1000 from Hearst Company of Germany.

[0024] Maleic anhydride grafted PE is prepared by the following method:

[0025] In 100 parts by weight of PE-1 (LLDPE produced by Mitsui Chemicals Co., Ltd.), 1 part by weight of maleic anhydride (produced by Wako Pure Chemical Industries, Ltd., hereinafter referred to as MAH) and 0.06 parts by weight of 2,5-dimethyl - A solution in which 2,5-bis(tert-butylperoxy)hexane (manufactured by NOF Corporation, trade name PERHEXA 25B) is dissolved in acetone. Then, extrusion was performed using a twin-screw kneader at a resin temperature of 250° C. at a sc...

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Abstract

The invention discloses a reinforced modified PA6 (polyamide-6) composition and a preparation method thereof. The composition consists of the following components in parts by weight: 50-80 parts of PA6, 10-20 parts of ultrahigh-molecular-weight PE, 1-10 parts of maleic anhydride grafted PE, 10-30 parts of glass fiber, 5-10 parts of large-particle-size SiO2, 5-10 parts of small-particle-size SiO2, 0.5-3 parts of a silane coupling agent, 0.5-2 parts of an antioxidant, and 0.5-2 parts of a lubricant. A product prepared from the composition has the advantages of improved dimensional stability, tensile property, impact resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a reinforced modified PA6 composition. Background technique [0002] Polyamide is usually called nylon. It is a general term for polymers containing amide group repeating units in the polymer macromolecular chain. It is mainly obtained by polycondensation or self-polymerization of dibasic acids and diamines or amino acid lactams. It is the earliest developed , The most used thermoplastic engineering plastics. Polyamide 6 has the advantages of high mechanical strength, high melting point, wear resistance and oil resistance, and is widely used in the fields of automobiles, electromechanical, electronics, textiles, and home appliances. [0003] SiO2 is one of the extremely important high-tech ultra-fine inorganic new materials, because of its large specific surface area, strong surface adsorption force, large surface energy, high chemical purity, good dispersi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L23/06C08L51/06C08K13/06C08K9/06C08K3/36C08K7/14
CPCC08L77/02C08K2201/003C08K2201/004C08L2201/08C08L2205/03C08L2207/068C08L23/06C08L51/06C08K13/06C08K9/06C08K3/36C08K7/14
Inventor 毛秋娣
Owner 宁波市特尔佳塑料科技有限公司
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