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A kind of reinforced modified flame retardant pa6 composition

A composition and modification technology, applied in the field of flame retardant PA6 composition, can solve the problems of rough surface, difficult processing and high price of injection molded products, and achieve the effects of improving mechanical properties, satisfying environmental protection, and improving flame retardant performance.

Active Publication Date: 2020-01-17
宁波市特尔佳塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these flame retardants are more or less expensive, difficult to process, rough surface of injection molded products, poor color, etc.

Method used

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  • A kind of reinforced modified flame retardant pa6 composition
  • A kind of reinforced modified flame retardant pa6 composition

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Effect test

Embodiment Construction

[0024] The technical solutions of the present invention will be further illustrated and described below through specific embodiments.

[0025] 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.

[0026] Ultra-high molecular weight PE adopts RCH 1000 from Hearst Company of Germany.

[0027] Maleic anhydride grafted PE is prepared by the following method:

[0028] 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 and modified flame-retardant PA6 composition and a preparation method thereof. The composition is prepared from, 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 fibers, 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, 0.5-2 parts of a lubricating agent and 10-20 parts of a flame retardant. A product prepared from the composition has advantages of improvement of dimensional stability, tensile properties, impact resistance and the like and promotion of flame retardation.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a reinforced modified flame-retardant 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] Micro-nano 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 che...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L23/06C08L51/06C08K13/06C08K9/06C08K7/14C08K3/36C08K3/22
CPCC08K2003/2224C08K2201/003C08K2201/014C08L77/02C08L2201/02C08L2201/08C08L2205/03C08L2207/068C08L23/06C08L51/06C08K13/06C08K9/06C08K7/14C08K3/36C08K3/22
Inventor 毛秋娣
Owner 宁波市特尔佳塑料科技有限公司