Active lubricant for wear-resistant material and high-strength wear-resistant nylon material

A wear-resistant material and lubricant technology, which is applied in the direction of lubricating composition, base material, petroleum industry, etc., can solve the problems of poor polymer compatibility and solid lubricant agglomeration, so as to improve the anti-friction and wear resistance performance and improve the Sexual state, the effect of improving physical and mechanical properties

Inactive Publication Date: 2010-07-21
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of agglomeration of solid lubricants during use and poor compatibility with polymers, and to further improve the physical and mechanical properties of nylon, the present invention provides an active lubricant for wear-resistant materials and high-strength wear-resistant nylon materials, and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 100g molybdenum disulfide (particle diameter 100 μm), 10g butanediol diglycidyl ether is dissolved in the mixed solvent of 500g toluene and 1-butanol, the proportioning of toluene and 1-butanol mixed solvent is 1: 1; The above-mentioned substances were put into a ball mill, and the ball milling time was 24 hours to obtain a ball mill product. The ball mill product was separated from solid and liquid, and dried in vacuum to obtain a surface-activated solid active lubricant. The solid active lubricant was in the form of black gray powder.

[0031] Dry nylon 6 (PA6) at 105°C for 6 hours, mix 100 parts of dried nylon 6 (PA6), 6 parts of the solid active lubricant prepared above, 3 parts of polyethylene grafted maleic anhydride, and 8 parts of zeolite whiskers , 2 parts of coupling agent KH-550 were blended in a high-speed mixer for 10 minutes, and then put into an extruder for extrusion and granulation. Among them, the temperature of each section of the extruder is: 1...

Embodiment 2

[0034] Add 100g of graphite (10 μm in particle size) and 50 g of molybdenum disulfide (45 μm in particle size), and 15 g of butanediol diglycidyl ether into a high-speed mixer at a speed of 1200 r / min, and mix for 30 minutes to obtain a mixed product. After vacuum drying, the compounded surface-activated solid active lubricant is obtained, and the solid active lubricant is in the form of black gray powder.

[0035] PA66 was dried at 105°C for 6 hours before use. 100 parts of dried PA66, 10 parts of solid active lubricant, 5 parts of polyethylene grafted maleic anhydride, 3 parts of talcum powder, and 1 part of coupling agent KH-550 were added to the The high-speed mixer blended for 10 minutes, and then put it into the extruder to extrude and granulate. Among them, the temperature of each section of the extruder is respectively: the temperature of the first zone is 240°C, the temperature of the second zone is 248°C, the temperature of the third zone is 250°C, the temperature of...

Embodiment 3

[0038] Weigh 60g of molybdenum disulfide (3.5 μm in particle size), 15g of 1,6-hexanediol diglycidyl ether, add in the high-speed mixer, the mixer speed is 1200r / min, mix for 30min, get the mixed product, the mixed product is subjected to vacuum After drying, a surface-activated solid active lubricant can be obtained.

[0039] Nylon 66 (PA66) was dried at 105°C for 6 hours before use. 100 parts of dried nylon 66 (PA66), 20 parts of solid active lubricant, 6 parts of maleic anhydride grafted POE, 0.5 parts of antioxidant 1010 and 0.5 parts of pigments were blended in a high-speed mixer for 10 minutes, then put into an extruder for extrusion and granulation. Among them, the temperature of each section of the extruder is respectively: the temperature of the first zone is 240°C, the temperature of the second zone is 248°C, the temperature of the third zone is 250°C, the temperature of the fourth zone is 253°C, the temperature of the fifth zone is 256°C, and the temperature of the ...

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Abstract

The invention relates to an active lubricant for wear-resistant materials and a high-strength wear-resistant nylon material. The active lubricant for wear-resistant materials comprises the following substances: molybdenum disulfide, graphite and an active treating agent; and the solid-state active lubricant is prepared through feeding the substances to a high-speed mixer according to the formulation and then mixing the substances. The high-strength wear-resistant nylon material comprises the following substances: 100 parts of nylon, 6-20 parts of solid-state active lubricant, 3-6 parts of toughening agent and 1-10 parts of additive; and the high-strength wear-resistant nylon material is prepared through feeding the substances to the high-speed mixer for high-speed mixing, and then pouring the substances to an extruder. When applied in nylon resin, the active lubricant can significantly improve the friction reducing capability, wear resistance, relative viscosity and comprehensive mechanical properties of the nylon matrix material, and can also prolong the service life of the material. Meanwhile, the active lubricant integrates the functions of activation modification of the surface of the solid lubricant and chain extension of the nylon resin, and enhances the physical and mechanical properties of nylon. The preparation method is simple and convenient, has good effect and is easy to be industrialized.

Description

technical field [0001] The invention belongs to solid lubricants and nylon materials, in particular to active lubricants for wear-resistant materials and high-strength wear-resistant nylon materials. Background technique [0002] Nylon (polyamide) has a regular molecular structure, high crystallinity and good comprehensive mechanical properties. Its outstanding features are wear resistance and good self-lubrication performance. It is one of the engineering plastics commonly used in the manufacture of mechanical parts and is widely used in automobiles. , machinery, packaging, electronics, electrical appliances and other fields. However, it has high water absorption, poor dimensional stability, and high friction coefficient during dry friction, so it cannot be used as a high-speed friction pair material, thus limiting its application range. To address these shortcomings, it is common to add high-performance fibers and solid lubricants to improve its mechanical strength and we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M103/06C10M103/00C08L77/02C08L77/06C08K13/06C08K3/30C08K3/04C10N50/08
Inventor 徐卫兵汪瑾周正发马海红任凤梅
Owner HEFEI UNIV OF TECH
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