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High-wearing high-rigidity reinforced nylon 66 complexes and method for making same

A high-rigidity, high-wear-resistant technology, applied in the field of modified polyamide, can solve the problem of no high-wear-resistant high-rigidity reinforced nylon 66 compound, etc., to achieve improved surface gloss, less toughness loss, and improved dimensional stability Effect

Active Publication Date: 2008-05-21
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] General-purpose glass fiber reinforced nylon 66 currently sells a lot in the market, and there are great differences in the performance of glass fiber reinforced nylon 66 produced by different manufacturers. Generally, foreign manufacturers such as Dupont, Asahi, Lanxess, BASF, Solutia, Dow chemical, etc., according to Different grades are actually required, such as high rigidity, high heat resistance, anti-aging, anti-hydrolysis, etc., but there is no high wear resistance and high rigidity reinforced nylon 66 compound

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Nylon 66 is PA66 21SPC with an intrinsic viscosity of 2.7±0.02 from DOW Chemical;

[0027] The nucleating agent is linear PPSRyton R-6 with a weight average molecular weight of 40,000-50,000 from Phillips Petroleum in the United States;

[0028] The anti-wear agent is made of polytetrafluoroethylene powder PTFE produced by Shanghai Fluoroplastic Research Institute;

[0029] The glass fiber is self-treated glass fiber Saint go bain 983 from Saint go bain in the United States;

[0030] Heat stabilizer and processing aid are selected as: Ciba (N, N'-1,6-hexanediyl bis(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenylpropionyl, Pentaerythritol bisphosphite bis(2,4-di-tert-butylphenyl) ester).

[0031] Put 100kg of PA66 with an intrinsic viscosity of 2.7±0.02, 10kg of linear PPS with a degree of polymerization, 10kg of anti-wear agent polytetrafluoroethylene powder PTFE (M1300 Shanghai Fluorine Plastic Research Institute), 0.9kg of heat stabilizer and processing aid Mix well und...

Embodiment 2

[0052] Nylon 66 is PA66 21SPC with an intrinsic viscosity of 2.7±0.02 from DOW Chemical;

[0053] The nucleating agent is a fully aromatic polyamide PPA from Du Pont Company of the United States;

[0054] The anti-wear agent is made of polytetrafluoroethylene powder PTFE produced by Shanghai Fluoroplastic Research Institute;

[0055] The glass fiber is self-treated glass fiber Saint go bain 983 from Saint go bain in the United States;

[0056] Heat stabilizers and processing aids are selected from Ciba N, N'-1,6-hexanediyl bis(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenylpropionyl and pentaerythritol bis Bis(2,4-di-tert-butylphenyl) phosphate.

[0057] Put 100kg of PA66 with an intrinsic viscosity of 2.7±0.02, 10KG of fully aromatic polyamide PPA, 10KG of wear-resistant polytetrafluoroethylene powder PTFE (M1300 Shanghai Fluorine Plastic Research Institute), 0.9KG of heat stabilizer and processing aid into the high Mix evenly in the mixer under the condition of 450rpm, add it ...

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Abstract

The invention relates to a highly wear-resistant and high-rigidity reinforced nylon 66 compound. The invention is characterized in that the compound consists of materials of the following weight portions: 66 portions to 100 portions of nylon, 0.1 portions to 15 portions of nucleater, 5 portions to 30 portions of wear-resistant agent, 0.5 portion to 3 portions of heat stabilizer and processing aid, and 15 portions to 105 portions of glass fiber. The invention has the advantage that each index all reaches or surpasses the scheduled requirements; the bending modulus of the material reach above 11000MPa; the hardness reaches to 135 N / mm2. Under the condition of no lubrication, surface pressure of 1.5 kg / m2, speed of 29 m / min and a temperature of 23 DEG C, the maximum static friction coefficient is 0.11; the maximum dynamic friction coefficient is 0.07. Under the condition of no lubrication, surface pressure of 100kg / cm<2> and speed of 23m / min, the PV value reaches above 2270kg / cm<2> question mark m / min.

Description

technical field [0001] The invention relates to a high-wear-resistant and high-rigidity reinforced nylon 66 compound and its preparation method, which is mainly used in bearings, gears, bushings, rollers, cams and other parts with relative motion in the industries of automobiles and OA, and belongs to the improvement permanent polyamide technology field. Background technique [0002] Nylon 66 is a widely used engineering plastic, which is formed by polycondensation of hexamethylenediamine and adipic acid. Its melting point is 246-263°C, the theoretical melting point is 259°C (DSC method), and the glass transition temperature in dry state is 50°C. . And the amide group on its molecular chain is polar and easy to form hydrogen bonds, so its mechanical properties are excellent, such as high strength, high modulus, high hardness, etc.; thermal properties are also high, such as thermal deformation, when adding glass fiber After that, it can reach 260°C (load is 0.45MPa), 250°C ...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08K7/14B29C47/40C08K5/524C08K5/54C08K3/04C08K5/10
Inventor 苏妤吉继亮刘志力张永姜苏俊陈大华
Owner SHANGHAI KINGFA SCI & TECH
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