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nylon composite

A nylon composite material and nylon technology, which is applied in the field of nylon composite materials, can solve the problems such as the inability to take into account the performance, and achieve the effects of improving poor toughness, little influence of material color, and improving toughness.

Active Publication Date: 2019-04-19
惠州市华聚塑化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the modification methods currently used are very targeted, and some properties cannot be taken into account

Method used

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  • nylon composite
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preparation example Construction

[0024] For example, the present invention provides a preparation method of modified inorganic fillers: add inorganic fillers and water into a flask, stir evenly, add emulsifier OP-10 [nonylphenol polydec(ethylene oxide) alcohol], high-speed After stirring for 30 minutes, add 25% monomer (methyl acrylate), emulsify at high speed for 30 minutes, heat up to 60-70°C, add 50% of initiator, that is, 50% of the total amount of initiator, and heat up to 80-90°C ℃, add the remaining monomers and initiators synchronously, keep the temperature at 80-90 ℃, evenly add in 3 hours, keep warm for 1 hour, cool to room temperature, filter, refrigerate, demulsify, wash, and vacuum dry to obtain modification Inorganic filler. For example, the outermost monomer methacrylic acid (MAA) is 0.5% of the total mass of the shell monomer methyl acrylate (MMA). In another example, the initiator is potassium sulfate.

[0025] Specifically in this embodiment, the grafted elastomer is maleic anhydride graft...

Embodiment 1

[0044] Nylon composite material in the embodiment of the present invention 1 comprises the following components in the following weight percentages:

[0045] Nylon 6: 81.1%, grafted elastomer: 16%, modified inorganic filler: 2%, lubricant: 0.3%, antioxidant: 0.6%.

[0046] The preparation method of nylon composite material in the embodiment of the present invention 1, comprises the following steps:

[0047] Nylon 6 was dried at 100°C for 6 hours. The dried nylon 6, modified inorganic filler, grafted elastomer, lubricant, and antioxidant were stirred in a high-speed mixer for 3 minutes and then added to the hopper of the twin-screw extruder. The process conditions of the twin-screw extruder were set as: 1 The temperature in the zone is 200-220°C, the temperature in the second zone is 220-240°C, the temperature in the third zone is 220-240°C, the temperature in the fourth zone is 220-250°C, the temperature in the fifth zone is 220-250°C, and the temperature in the sixth zone is...

Embodiment 2

[0049] Nylon composite material in the embodiment of the present invention 2 comprises the following components in the following weight percentages:

[0050] Nylon 6: 79.1%, grafted elastomer: 18%, modified inorganic filler: 2%, lubricant: 0.3%, antioxidant: 0.6%.

[0051] The preparation method of the nylon composite material in Example 2 of the present invention is the same as that in Example 1.

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Abstract

The invention provides a nylon composite material. The nylon composite material is prepared from, by weight, 75.1-81.1% of nylon resin, 16-22% of a grafting elastomer, 1-3% of a modified inorganic filler, 0.1-1% of a lubricant and 0.1-1% of an antioxidant. According to the modified inorganic filler, an organic filler is adopted as a core layer, methyl acrylate is adopted as a shell layer, a functional monomer methacrylic acid is copoplymerized on the outmost layer, and an emulsion polymerization method is used for preparing the nylon composite material. According to the nylon composite material, the grafting elastomer and the modified inorganic filler are composited to form the reinforcing and toughening nylon material, inherent advantages of the nylon material are kept, the toughness of the nylon material is greatly improved, the defect that the toughness of the nylon material is poor is overcome, the influence on the color of the material is small, and the mechanical property of the product is better.

Description

technical field [0001] The invention relates to the technical field of polymer material preparation, in particular to a nylon composite material. Background technique [0002] Nylon, scientific name Polyamide (Polyamide), referred to as PA, refers to the total number of thermoplastic resins with amide group (—NHCO—) repeating structural units on the polymer chain. Although there are many types of polyamides, they are mainly prepared by two methods, one is prepared by the polycondensation reaction between the functional groups of dicarboxylic acids and diamines; the other is prepared by ring-opening with caprolactam or ω-aminocaproic acid aggregated. With the development of society, engineering plastics have been widely used in automobile manufacturing, electronics, aerospace and other industries, but the use environment of engineering plastics will become more and more harsh, such as high toughness, high temperature, high voltage, high humidity, high Loads, chemical reagen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L51/06C08L55/02C08L51/04C08K9/10C08K7/08
CPCC08K2201/003C08K2201/004C08L77/02C08L51/06C08L55/02C08L51/04C08L51/003C08K9/10C08K7/08
Inventor 刘典典冉进成官炳荣官炳桂
Owner 惠州市华聚塑化科技有限公司
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