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High-strength injection molding material formula

A high-strength, formula-based technology, applied in the field of injection molding material formula, can solve problems such as color mixing and floating fibers, difficult demoulding, easy aging, etc., to achieve the effect of convenient molding and insulation, simple injection molding process, and not easy to rust

Inactive Publication Date: 2019-07-23
江门市亿高电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary plastic parts have disadvantages such as low strength, poor rigidity and easy aging, and cannot completely replace metal parts
In order to enhance the strength of plastic parts, glass fiber is generally added to the plastic material in the prior art, but if the content of glass fiber is too low, the strength and stiffness of the workpiece cannot meet the requirements of metal fittings, and if the content of glass fiber is too high, it is easy to cause cracks on the surface of the workpiece. Embossing, color mixing and floating fibers, it is easy to cause difficult demoulding, white top and deformation in the injection molding process

Method used

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  • High-strength injection molding material formula
  • High-strength injection molding material formula
  • High-strength injection molding material formula

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Example 1, a high-strength injection molding material formulation, which is composed of the following raw materials: Nylon 66 with the brand name 21SPC produced by Solutia Chemicals: 34KG, glass staple fibers produced by Jushi Company: 59KG, and maleic anhydride as a toughening agent POE grafting: 4kg, octadecyl propionate as an antioxidant: 1kg, PETS-AP as a flow agent: 1kg, plasticizer: 1kg.

Embodiment 2

[0010] Example 2, a high-strength injection molding material formula, which is composed of the following raw materials: Nylon 66 with the brand name of 21SPC produced by Solutia Chemicals: 32KG, nylon 6 material with the brand name of 3280 produced by Yueyang Chemical Industry: 2KG, produced by Jushi Company Glass staple fiber: 60KG, maleic anhydride POE grafting as a toughening agent: 3.5kg, n-octadecanyl propionate as an antioxidant: 0.8kg, PETS-AP as a flow agent: 0.8kg, Plasticizer: 0.9kg.

Embodiment 3

[0011] Example 3, a high-strength injection molding material formula, which is composed of the following raw materials: Nylon 66 with the brand name of 21SPC produced by Solutia Chemicals: 33KG, nylon 6 material with the brand name of 3280 produced by Yueyang Chemical Industry: 3.5KG, produced by Jushi Company Glass staple fiber: 61KG, maleic anhydride POE grafting as a toughening agent: 1kg, octadecyl propionate as an antioxidant: 0.5kg, PETS-AP as a flow agent: 0.5kg, Plasticizer: 0.5kg.

[0012] When using the formula of the present invention to manufacture the door hinge of a certain brand of drum-type washing machine, its injection molding process is shown in the table below:

[0013]

[0014] After testing the door hinges manufactured by using the formula of the present invention and the above-mentioned injection molding process, the performance results are compared as follows:

[0015]

[0016]

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PUM

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Abstract

A high-strength injection molding material formula comprises materials in percentage by weight as follows: 32%-34% of nylon-66, 59%-61% of short glass fiber, 1%-4% of a toughening agent, 0.5%-1% of anantioxidant, 0.5%-1% of a flowable agent and 0.5%-1% of a plasticizer. A small household appliance injection molded part formed by injection molding with the formula has strength and hardness close to metal parts and has the advantages of being low in cost, light in mass, not prone to rusting, convenient to mold, insulating and the like. Meanwhile, the injection molding process is simple, and undesirable phenomena of flower floating, color mixing, fiber floating and the like cannot occur on workpiece surfaces.

Description

technical field [0001] The invention relates to an injection molding material formula, in particular to a high-strength nylon injection molding material formula. Background technique [0002] Compared with metal fittings, plastic fittings in household appliances have the advantages of low cost, light weight, not easy to rust, convenient molding and insulation. It has been a tireless pursuit in the industry to replace metal fittings with plastic fittings. However, ordinary plastic parts have disadvantages such as low strength, poor stiffness and easy aging, and cannot completely replace metal parts. In order to enhance the strength of plastic parts, glass fiber is generally added to the plastic material in the prior art, but if the content of glass fiber is too low, the strength and stiffness of the workpiece cannot meet the requirements of metal fittings, and if the content of glass fiber is too high, it is easy to cause cracks on the surface of the workpiece. Embossing, mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L51/06C08K7/14C08K5/101C08K5/103
CPCC08L77/06C08L2205/03C08L51/06C08K7/14C08K5/101C08K5/103C08L77/02
Inventor 陈坚
Owner 江门市亿高电器有限公司
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