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High-smooth engineering plastic alloy and preparation method thereof

An engineering plastic alloy and smooth technology, applied in the field of engineering plastics, can solve the problems of product quality degradation, glass fiber exposure, glass fiber is not easy to disperse evenly, etc., to achieve the effect of increasing mechanical properties and simplifying the production process

Inactive Publication Date: 2019-03-08
上海天原集团胜德塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the production cost, a high content of glass fiber can be added to PA66, but the high content of glass fiber is not easy to disperse evenly in PA66, and it is easy to cause the glass fiber to be exposed on the surface of the product, that is, floating fiber, which greatly reduces the quality of the product

Method used

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  • High-smooth engineering plastic alloy and preparation method thereof
  • High-smooth engineering plastic alloy and preparation method thereof
  • High-smooth engineering plastic alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: A high-smooth engineering plastic alloy, each component and its corresponding parts by weight are shown in Table 1, and are prepared through the following steps:

[0041] Step 1, glass fiber pretreatment: put the glass fiber into γ-aminopropyltriethoxysilane and fully impregnate it for 10 minutes, then dry it for later use, the drying temperature is 70°C;

[0042] Step 2, mixing and drying: cut the pretreated glass fibers into 6mm bundles, then mix and dry with polyhexamethylene adipamide for 4 hours, and the drying temperature is 110°C;

[0043] Step three, twin-screw extrusion: mix the mixture obtained in step two with talcum powder, trifluoroacetic acid, ethylene acrylate copolymer, pentaerythritol stearate, tris (2,4-di-tert-butylphenyl) phosphorous acid The ester and pentaerythritol diphosphite were put into a twin-screw mixing extruder for mixing, and the machine head was directly water-cooled for traction, cutting and granulation. The twin-screw ext...

Embodiment 2-7

[0044] Embodiment 2-7: A high-smooth engineering plastic alloy. The difference from Embodiment 1 is that each component and its corresponding parts by weight are shown in Table 1.

[0045] Each component and parts by weight thereof in table 1 embodiment 1-7

[0046]

Embodiment 8-17

[0047] Embodiment 8-17: A high-smooth engineering plastic alloy, the difference from Embodiment 1 is that each component and its corresponding parts by weight are shown in Table 2

[0048] Each component and parts by weight thereof in table 2 embodiment 8-17

[0049]

[0050]

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Abstract

The invention discloses high-smooth engineering plastic alloy, relates to the technical field of engineering plastic, and solves the technical problem that adding high-content glass fiber in engineering plastic is easy to cause glass fiber floating. The alloy comprises 30 to 44 parts of polyhexamethylene adipamide, 50 to 62 parts of glass fiber, 10 to 16 parts of a talcum powder, 0.4 to 1 part ofa silane coupling agent, 0.1 to 0.5 part of a dispersing agent, 0.1 to 1.5 parts of a lubricant, and 0.1 to 1 part of an antioxidant. The alloy has the advantages that no glass fiber floating phenomenon exists on the surface of a product, the alloy is high in smoothness, the strength is high, and the production cost is low.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a high-smooth engineering plastic alloy and a preparation method thereof. Background technique [0002] In recent years, with the improvement of industrial development level and the improvement of product quality requirements, the high performance of engineering plastics has gradually been put on the agenda, and has become the development frontier and key research direction of today's modified plastics. [0003] In the Chinese utility model patent whose publication number is CN203669959U, a gasoline vehicle engine oil pan is disclosed, including the oil pan body, the oil pan body is provided with reinforcing ribs, and the oil pan body is made of polyadipyl adipyl Hexamethylenediamine (PA66) and 35% glass fiber are mixed. [0004] In the above patent, by using PA66, it can not only replace the metal material, greatly reduce the weight of the engine, but also reduce t...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L23/08C08K9/06C08K7/14C08K3/34
CPCC08L77/06C08L23/0869C08K9/06C08K7/14C08K3/34
Inventor 李国锋李红叶管俊
Owner 上海天原集团胜德塑料有限公司