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Modified polyoxymethylene composite material and preparation method thereof

A composite material and polyoxymethylene technology, which is applied in the field of modified polyoxymethylene composite material and its preparation, can solve the problems of easy corrosion, reduced service life, unstable mechanical properties, etc., and achieves the effect of good corrosion resistance.

Active Publication Date: 2016-03-09
安徽博利迈新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the mechanical strength of the polyoxymethylene material is high, its mechanical properties are unstable, and it is easily corroded in an acid-base environment, thereby reducing its service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Modified polyoxymethylene composite material, including the following raw materials in parts by weight: 15 parts of polyoxymethylene, 25 parts of triethanolamine, 35 parts of polyacrylate, 30 parts of polyvinylpyridine, 70 parts of ethyl methacrylate, 40 parts of zinc silicate 15 parts of kaolin, 25 parts of deacetylated chitin, 25 parts of calcium molybdate, 60 parts of aluminum powder, 50 parts of crosslinking agent, and 50 parts of modifier.

[0025] The particle size of the aluminum powder is 5 microns.

[0026] The crosslinking agent is sulfur.

[0027] The modifier is butadiene-styrene copolymer.

[0028] The preparation method of modified polyoxymethylene composite material comprises the following steps:

[0029] (1) Add polyoxymethylene, triethanolamine, and polyacrylate into the mixer and stir, and after stirring evenly, discharge to obtain a premix;

[0030] (2) Slowly add polyvinylpyridine and ethyl methacrylate into the premix, and stir while adding, to o...

Embodiment 2

[0035] Modified polyoxymethylene composite material, including the following raw materials in parts by weight: 10 parts of polyoxymethylene, 20 parts of triethanolamine, 30 parts of polyacrylate, 20 parts of polyvinylpyridine, 50 parts of ethyl methacrylate, 20 parts of zinc silicate parts, 10 parts of kaolin, 20 parts of deacetylated chitin, 10 parts of calcium molybdate, 20 parts of aluminum powder, 10 parts of crosslinking agent, and 40 parts of modifier.

[0036] The particle size of the aluminum powder is 8 microns.

[0037] The crosslinking agent is barium oxide.

[0038] The modifier is butadiene-styrene copolymer.

[0039] The preparation method of modified polyoxymethylene composite material comprises the following steps:

[0040] (1) Add polyoxymethylene, triethanolamine, and polyacrylate into the mixer and stir, and after stirring evenly, discharge to obtain a premix;

[0041] (2) Slowly add polyvinylpyridine and ethyl methacrylate into the premix, and stir while...

Embodiment 3

[0046] Modified polyoxymethylene composite material, including the following raw materials in parts by weight: 20 parts of polyoxymethylene, 30 parts of triethanolamine, 50 parts of polyacrylate, 50 parts of polyvinylpyridine, 80 parts of ethyl methacrylate, 60 parts of zinc silicate parts, 20 parts of kaolin, 30 parts of deacetylated chitin, 40 parts of calcium molybdate, 80 parts of aluminum powder, 80 parts of crosslinking agent, and 60 parts of modifier.

[0047] The particle size of the aluminum powder is 6 microns.

[0048] The crosslinking agent is barium oxide.

[0049] The modifier was butadiene-styrene copolymer6.

[0050] The preparation method of modified polyoxymethylene composite material comprises the following steps:

[0051] (1) Add polyoxymethylene, triethanolamine, and polyacrylate into the mixer and stir, and after stirring evenly, discharge to obtain a premix;

[0052] (2) Slowly add polyvinylpyridine and ethyl methacrylate into the premix, and stir whi...

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Abstract

The invention discloses a modified polyoxymethylene composite material and a preparation method thereof. The modified polyoxymethylene composite material comprises the following raw materials in parts by weight: 10-20 parts of polyoxymethylene, 20-30 parts of triethanolamine, and 30-50 parts of polyacrylate 20-50 parts of polyvinylpyridine, 50-80 parts of ethyl methacrylate, 20-60 parts of zinc silicate, 10-20 parts of kaolin, 20-30 parts of deacetylated chitin, 10-40 parts of calcium molybdate 20-80 parts of aluminum powder, 10-80 parts of crosslinking agent, and 40-60 parts of modifier. Preparation method: Stir polyoxymethylene, triethanolamine and polyacrylate evenly to obtain a premix; slowly add polyvinylpyridine and ethyl methacrylate to the premix to obtain a modified premix; The mixture was fed to the main feed hopper of the twin-screw extruder, and the remaining components were fed through the side feed. The modified polyoxymethylene composite material obtained in the invention has an acid resistance of 2.8-3.0 hours, an alkali resistance of 6.9-7.1 hours, and good corrosion resistance.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a modified polyoxymethylene composite material and a preparation method thereof. Background technique [0002] POM (English: polyformaldehyde) thermoplastic crystalline polymer. Known as "Super Steel" or "Sai Steel", also known as polyoxymethylene. The structure is, the English abbreviation is POM. Usually, the polymer obtained by formaldehyde polymerization has a low degree of polymerization and is easily depolymerized by heat. Polyoxymethylene is a linear polymer with no side chain, high density and high crystallinity, and has excellent comprehensive properties. Polyoxymethylene is a smooth, shiny hard and dense material, light yellow or white, and can be used for a long time in the temperature range of -40-100°C. Its wear resistance and self-lubrication are also superior to most engineering plastics, and it has good oil resistance and peroxide resistance. It i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/06C08L15/00C08L33/04C08L39/08C08L59/00C08L5/08C08F291/12C08F291/06C08F220/18C08K3/34C08K3/24C08K3/08C08K3/06C08K3/22B29C47/92B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08K2201/003C08L9/06C08L2205/035C08L33/08C08L39/08C08L5/08C08L59/00C08K13/02C08K3/346C08K2003/0812C08K3/34C08K5/17C08K3/06C08K2003/2206
Inventor 翟红波杨振枢韦洪屹
Owner 安徽博利迈新材料科技有限公司