Transparent nylon material and preparation method thereof

A nylon and transparent technology, applied in the field of polymer material nylon synthesis, can solve the problems of increased production cost, low tolerance and harsh processing requirements.

Pending Publication Date: 2021-04-20
GUANGZHOU CHENDONG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to the presence of aromatic monomers in the existing transparent nylon materials, the polymerization temperature in the preparation process is high, the color is easy to change, the synthesis process is complicated, and the processing technology is also demanding. It is difficult to produce large-scale industrial production. The infrared transmittance of nylon material products is low, and it is difficult to meet the needs of industrial applications that require h

Method used

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  • Transparent nylon material and preparation method thereof
  • Transparent nylon material and preparation method thereof
  • Transparent nylon material and preparation method thereof

Examples

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Embodiment 1

[0023] A kind of transparent nylon material, preparation raw material comprises the following components by mass percentage:

[0024] 70% Component A: obtained by reacting aliphatic branched long-chain diamine with a molar ratio of 1:1 and aliphatic long-chain dibasic acid, wherein the aliphatic branched long-chain diamine is trimethyl Hexamethylenediamine, the aliphatic long-chain dibasic acid is dodecane dibasic acid;

[0025] 15% Component B: para-position aromatic dibasic amine and aromatic dibasic acid with a molar ratio of 1:1, wherein the para-position aromatic dibasic amine is p-xylylenediamine, and the aromatic dibasic acid is p-phenylene dicarboxylic acid;

[0026] 13% Component C: Caprolactam;

[0027] 2% catalyst: hypophosphite.

[0028] The preparation method of transparent nylon material comprises the following steps:

[0029] (1) Add component A, component B, component C and the catalyst into the liquid mixing tank, raise the temperature to 120-160°C under t...

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PUM

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Abstract

The invention discloses a transparent nylon material and a preparation method thereof, and the preparation raw materials of the transparent nylon material comprise the following components in percentage by mass: 50-80% of a component A, 5-25% of a component B, 5-25% of a component C and 0.01-2% of a catalyst, wherein the component A is a prepolymer prepared from aliphatic branched-chain-containing long-chain diamine and aliphatic long-chain dicarboxylic acid according to a molar ratio of 1: 1, the component B is a prepolymer prepared from para-aromatic diamine and aromatic dicarboxylic acid according to a molar ratio of 1: 1, and the component C is a lactam compound. The catalyst is selected from at least one of hypophosphite, titanium dioxide and vanadium pentoxide. As the benzene ring of the prepolymer B destroys the regularity of a macromolecular chain, a fine and uniform crystal structure is favorably formed, the light transmittance of the product is improved, the prepolymer A belongs to aliphatic transparent polyamide, and the stability and the chemical corrosion resistance of the product are effectively improved by combining the stable benzene ring structure of the prepolymer B.

Description

technical field [0001] The invention relates to the technical field of polymer material nylon synthesis, in particular to a transparent nylon material and a preparation method thereof. Background technique [0002] Transparent nylon material is a kind of special polyamide with amorphous structure or microcrystalline structure, which has higher mechanical strength than conventional transparent materials such as polycarbonate PC, polymethyl methacrylate PMMA, polystyrene PS, etc. , thermal stability, excellent corrosion resistance, scratch resistance and stress crack resistance, etc., not only can be used for beverage and food packaging, but also can be used as packaging materials for precision instruments, meters, pharmaceutical and chemical industries, production of moisture-proof, disinfectant Shock cushions and foamed sheets, etc., have good tensile strength, impact strength, rigidity, wear resistance, chemical resistance, surface hardness and other properties. [0003] D...

Claims

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Application Information

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IPC IPC(8): C08G69/36C08G69/04
Inventor 杨冬李东阵袁会宁
Owner GUANGZHOU CHENDONG NEW MATERIALS
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