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High-wearing resistance polyamide/polyketone alloy

A technology of wear-resistant polyamide and polyamide, applied in the field of polymer materials, can solve the problems of decreased tensile strength and flexural modulus, failure to obtain effects, high water absorption, etc., and achieve excellent wear resistance and good dimensional stability , low water absorption effect

Active Publication Date: 2017-09-22
CGN JUNER NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that in the composition, POE grafted maleic anhydride is used as a compatibilizer, although claim 1 defines its usage as 1-12% by weight, but from the performance in Table 2 As can be seen from the data, when the content of POE grafted maleic anhydride is 1% by weight (embodiment 3), there are floating fibers on the surface of the gained material, the water absorption rate is the largest, and the abrasion resistance is the worst. When maleic anhydride is used as a compatibilizer, the desired effect cannot be obtained
And when the surface of material can't observe floating fiber completely, and when abrasion resistance reaches optimum, the content of the POE grafted maleic anhydride that needs is as high as 6~8 weight % (embodiment 5~6), but simultaneously, the material's Significant decreases in both tensile strength and flexural modulus

Method used

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  • High-wearing resistance polyamide/polyketone alloy
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0030] Polyamide (PA610) and polyketone resin (AKRO-PALSTIC, brand PK-HM) are mixed in high-speed mixer according to the material proportion of each embodiment in Table 1 (if no special instructions, the following proportions are weight percentages) After mixing at medium and high speed for 2 minutes, add it to the extruder from the first feeder (main feeder); then mix ethylene-maleic anhydride copolymer (Vantrus E60), lubricant and compound stabilizer by the high-speed mixer for 3 minutes Add 0.1% KH550 coupling agent to petroleum-based needle coke (ComocoINC), crush it to 1250 mesh with a high-speed pulverizer, and then feed it into the twin-screw extruder from the third feeder.

[0031] The temperature distribution of the extruder is as follows: from the feed section to the machine head: 245~265℃, 245~265℃, 245~255℃, 235~245℃, 230~245℃, 220~230℃, 220~230℃ ℃, 210~230℃, die head: 235~255℃, after extrusion, the material is water-cooled, pelletized, and then packaged. The pell...

Embodiment 5

[0033] The material ratio and processing technology are exactly the same as those in Example 1, except that the needle coke used is coal-based needle coke (domestic), and the specific ratio is listed in Table 1 below.

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Abstract

The invention discloses a high-wearing resistance polyamide / polyketone alloy which comprises the following raw materials: polyamide, polyketone, a compatilizer, other aids as well as needle cokes, wherein the compatilizer is an ethylene-maleic anhydride alternating copolymer. The invention provides the high-wearing resistance polyamide / polyketone alloy and the prepared material is excellent in wearing resistance, high in size stability and low in water absorption rate, and can be used for manufacturing transmission parts of automobiles, electronic appliances and various machines and components with requirements of high strength, high wearing resistance and high size stability.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a highly wear-resistant polyamide / polyketone alloy. Background technique [0002] Polyamide is collectively referred to as nylon (Nylon), and its English name is Polyamide (abbreviated as PA). It is named after the repeated amide group—[NHCO]—in the main chain of the molecule. , a class of basic resin with excellent comprehensive performance. Nylon has good mechanical strength, high softening point, heat resistance, oil resistance, weak acid resistance, alkali resistance and general solvent resistance, good electrical insulation, self-extinguishing, non-toxic, odorless, good weather resistance, good dyeing property, Low friction coefficient, wear resistance, self-lubricating, shock-absorbing and noise-absorbing properties, and excellent processing and forming characteristics. The disadvantage is that the water absorption is large, which affects the dimensional stabili...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L73/00C08L23/08C08K13/06C08K5/20C08K5/526C08K5/098C08K9/06C08K7/06
CPCC08L77/06C08L2203/20C08L2205/03C08L73/00C08L23/0869C08K13/06C08K5/20C08K5/526C08K5/098C08K9/06C08K7/06
Inventor 陈佰全陈晓敏陈智文田际波林立刘浪黄涛
Owner CGN JUNER NEW MATERIALS