Long glassfiber reinforced nylon composite material and preparation method thereof

A nylon composite material and long glass fiber technology, which is applied in the field of long glass fiber reinforced nylon composite material and its preparation, can solve the problems of large production equipment loss, serious glass fiber flying, and large environmental pollution, so as to improve the modulus and increase the Effects of reducing mechanical properties and molding shrinkage

Inactive Publication Date: 2014-06-11
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using short glass fiber for reinforcement, the fiber needs to be cut off and mixed with nylon material to add to the screw, the glass fiber is flying seriously, causing great environmental pollution, and the short glass fiber will seriously wear the screw and barrel in the screw, which will cause a great loss to the production equipment

Method used

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  • Long glassfiber reinforced nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) First dry nylon 6 in an oven at 90°C for 10 hours, take 100 parts of dried nylon 6, 2 parts of compatibilizer PP-g-MAH, 0.1 part of antioxidant 1010 and 0.2 parts of lubricant silicone powder , mixed in a high-speed mixer for 3 minutes;

[0041] (2) Glass fiber surface treatment: First mix absolute ethanol and deionized water at a mass ratio of 95:5, and use acetic acid to adjust the pH of the solution to 3.5, and then add coupling agent KH550 (the content of effective substances is 98%) Dissolve in the above solution, prepare a glass fiber surface treatment agent with a coupling agent mass concentration of 0.5wt%, and then immerse a continuous long glass fiber with a diameter of 13 μm in the above solution for 20 minutes. Dry for 48 hours, then dry in an oven at 80°C for 4 hours;

[0042] (3) Send the mixture in the above (1) into the twin-screw extruder through the upstream feeding port, and at the same time, send the continuous long glass fiber in the above (2) ...

Embodiment 2

[0045] (1) First dry nylon 6 in an oven at 100°C for 8 hours, take 100 parts of dried nylon 6, 4 parts of compatibilizer POE-g-MAH, 0.2 parts of antioxidant 168 and 0.4 parts of lubricant TAF (modified Ethylene bis fatty acid amide, Suzhou Xingtai Photochemical Auxiliary Co., Ltd.) mixed in a high-speed mixer for 4 minutes;

[0046] (2) Glass fiber surface treatment: First mix absolute ethanol and deionized water at a mass ratio of 95:5, and use acetic acid to adjust the pH of the solution to 4.0, and then add coupling agent KH560 (the content of effective substances is 97%) Dissolve in the above solution, prepare a glass fiber surface treatment agent with a coupling agent mass concentration of 1.0wt%, and then immerse a continuous long glass fiber with a diameter of 12 μm in the above solution for 30 minutes. Dry for 42 hours, then dry in an oven at 90°C for 3 hours;

[0047](3) Send the mixture in the above (1) into the twin-screw extruder through the upstream feeding port,...

Embodiment 3

[0050] (1) First dry nylon 6 in an oven at 110°C for 6 hours, take 100 parts of dried nylon 6, 5 parts of compatibilizer EPDM-g-MAH, 0.25 parts of antioxidant 1076 and 0.45 parts of RH-313A (pentaerythritol Stearate, Dongguan Jianxing Plastic Products Co., Ltd.) was mixed in a high-speed mixer for 5 minutes;

[0051] (2) Glass fiber surface treatment: first mix absolute ethanol and deionized water at a mass ratio of 95:5, and use acetic acid to adjust the pH value of the solution to 4.5, and then add coupling agent KH570 (the content of effective substances is 97%) Dissolve in the above solution, prepare a glass fiber surface treatment agent with a coupling agent mass concentration of 1.25wt%, and then immerse a continuous long glass fiber with a diameter of 11 μm in the above solution for 40 minutes. Dry for 38 hours, then dry in an oven at 100°C for 2 hours;

[0052] (3) Send the mixture in the above (1) into the twin-screw extruder through the upstream feeding port, and at...

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Abstract

The invention belongs to the technical field of high-molecular composite materials, and relates to a long glassfiber reinforced nylon composite material and a preparation method thereof. The composite material is prepared from the following components in parts by weight: 100 parts of nylon, 2 to 10 parts of compatilizer, 0.1 to 0.5 part of antioxidant, 0.2 to 1.0 part of lubricant and 10 to 40 parts of glassfibers. Compared with the short glassfiber reinforcement mode, according to the composite material provided by the invention, abrasions among short glassfibers, a screw rod and a feed cylinder are decreased during a double-screw extruding process, namely, the minimum fiber retained in an injection-molding product is large in length, so that the glassfiber reinforced nylon composite material with excellent performance is prepared. Thus, the applications of the glassfiber reinforced nylon composite material in the fields of automobiles, electric appliances, machinery, military industry and the like are enlarged.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and relates to a long glass fiber reinforced nylon composite material and a preparation method thereof. Background technique [0002] With the rapid growth of the global economy, the requirements for the mechanical properties of engineering plastics are getting higher and higher. In order to meet the needs of the electronic appliances and automobile markets, glass fibers are usually used as reinforcements to improve the mechanical properties of engineering plastics. [0003] When glass fiber reinforced engineering plastics, the length of the fiber is one of the main factors that determine the fiber reinforced composite. In ordinary short fiber reinforced nylon materials, shorter fibers are mixed with nylon materials and added to the screw, and the short glass fibers are sheared between the screw and the barrel, the fibers are damaged, and the fiber length is only 0.2~0.6mm, so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08K9/06C08K7/14B29C47/92B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08K2201/003C08L77/02C08L77/06C08L2205/03C08L51/06C08L83/04C08K9/06C08K7/14C08K5/20C08K5/103B29B9/14B29C48/40B29C48/875B29C2948/92561B29C2948/9259B29C2948/92638B29C2948/92838B29C2948/92885B29C2948/92895
Inventor 刘明昌
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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