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A kind of rigid reinforced polyoxymethylene composite material and preparation method thereof

A technology of composite material and rigidity enhancement, which is applied in the field of rigidity-reinforced polyoxymethylene composite material and its preparation, to achieve the effect of facilitating implementation and promotion, and improving compatibility effect

Active Publication Date: 2018-03-30
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, although a stiffening modifier has been introduced to improve the rigidity of polyoxymethylene, the prior art has not solved the problem of compatibility between the two

Method used

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  • A kind of rigid reinforced polyoxymethylene composite material and preparation method thereof
  • A kind of rigid reinforced polyoxymethylene composite material and preparation method thereof
  • A kind of rigid reinforced polyoxymethylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Preparation of composite stabilizer:

[0065] ①With 338g formaldehyde absorbent melamine, 61g formic acid absorbent zinc oxide, 452g antioxidant triethylene glycol bis[3-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate], 108g Add the anti-floating fiber lubricant simethicone to a 3L high-speed mixer (Obert Plastic Machinery Co., Ltd., model SHR-10A, the same below), and mix evenly at a speed of 1200 rpm;

[0066] ②Put the uniformly mixed composite stabilizer into an extrusion molding machine (Jiangyin Xinyou Machinery Equipment Manufacturing Co., Ltd., model S-40, the same below), extrude and pelletize to obtain composite stabilizer granules.

[0067] Preparation of rigidity-reinforced polyoxymethylene composites:

[0068] Add 3.12kg of polyoxymethylene, 12g of maleic anhydride grafted polystyrene, and 16g of composite stabilizer into a high-speed mixer and mix evenly. The mixing speed of the mixer is 1500r / min; In the main feeder of the extruder, 350g of glass fibe...

Embodiment 2

[0071] Preparation of composite stabilizer:

[0072] ① 276g formaldehyde absorbent melamine, 54g formic acid absorbent zinc stearate, 248g antioxidant tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 132g antioxidant Agent tris(2,4-di-tert-butylphenyl) phosphite, 130g anti-floating fiber lubricant ethylene bisoleic acid amide was added in a 3L high-speed mixer, and mixed evenly at a speed of 900 rpm;

[0073] ②Put the evenly mixed composite stabilizer into the extrusion molding machine, extrude and pelletize to obtain composite stabilizer granules.

[0074] Preparation of rigidity-reinforced polyoxymethylene composites:

[0075] Add 2.98kg of polyoxymethylene, 21g of maleic anhydride grafted polystyrene, and 28g of composite stabilizer to a high-speed mixer and mix evenly. The mixing speed of the mixer is 1600r / min; then the mixed components are added to the twin-screw In the main feeder of the extruder, 525g of glass fiber is added from the ...

Embodiment 3

[0078] Preparation of composite stabilizer:

[0079] ① Mix 285g formaldehyde absorbent diethyltriamine, 76g formic acid absorbent calcium stearate, 245g antioxidant triethylene glycol bis[3-(3-tert-butyl-4-hydroxy-5-methylphenyl) Propionate], 234g antioxidant tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 105g anti-floating fiber lubricant ethylene bisoleic acid amide graft copolymerization Add the mixture into a 3L high-speed mixer, and mix evenly at a speed of 1000 rpm;

[0080] ②Put the evenly mixed composite stabilizer into the extrusion molding machine, extrude and pelletize to obtain composite stabilizer granules.

[0081] Preparation of rigidity-reinforced polyoxymethylene composites:

[0082] 2.75kg of polyoxymethylene, 21g of maleic anhydride grafted ethylene-vinyl acetate, and 28g of composite stabilizer were added to a high-speed mixer and mixed uniformly, and the mixing speed of the mixer was 1600r / min; then the components afte...

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Abstract

The invention discloses a rigidity-reinforced polyformaldehyde composite material including 70-95 parts by weight of polyformaldehyde, 5-30 parts by weight of a toughening elastomer and 0.2-1.0 part by weight of a modification compatilizer. The invention also provides a preparation method of the rigidity-reinforced polyformaldehyde composite material. Through adding the special modification compatilizer, a compatibility effect of basis resin and the rigidity reinforcing modifier in the composite material is increased.

Description

technical field [0001] The invention belongs to the field of polymer material modification, and in particular relates to a rigidity-reinforced polyoxymethylene composite material and a preparation method thereof. Background technique [0002] Polyoxymethylene resin has a regular molecular structure and high crystallinity, so it has high tensile strength, high flexural modulus, high hardness, and excellent comprehensive performance. It is widely used in the fields of automobiles, electronics, office equipment, mechanical engineering and household devices. Polyoxymethylene resin plays a very important role in the preparation of various rotating parts. [0003] Although relative to other resins or materials, such as polyethylene, polypropylene, styrene-butadiene-acrylonitrile copolymer, polystyrene, polyvinyl chloride, polyoxymethylene resin has higher rigidity or modulus, but in When preparing high wear-resistant or high-strength products, such as special gears, bearings, mec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L59/00C08L51/00C08K13/04C08K7/14C08K5/3492C08K3/22C08K5/098C08K5/17B29C47/92B29C48/92
Inventor 方伟张彩霞李丽英田广华罗春桃袁炜孟永智杨玮婧焦旗郑鹏程李磊黄河
Owner CHNA ENERGY INVESTMENT CORP LTD