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A kind of high-strength wear-resistant plastic material and its preparation method

A wear-resistant plastic, high-strength technology, used in the field of composite materials, can solve the problems of poor wear resistance, oil resistance and oxidation resistance, low requirements for equipment and reaction conditions, and poor anti-aging performance, and achieve excellent anti-aging performance. , The requirements for equipment and reaction conditions are not high, and the effect of improving weather resistance and chemical stability

Active Publication Date: 2020-12-18
SHENZHEN HUA WAN CAI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the prior art, the present invention provides a high-strength wear-resistant plastic material and its preparation method. The preparation method is simple and easy to operate, the raw materials are easy to obtain, the price is low, the requirements for equipment and reaction conditions are not high, and it is suitable for Large-scale production; the high-strength wear-resistant plastic material prepared by the preparation method overcomes the unstable quality of ordinary plastic materials in the prior art, poor aging resistance, easy aging and cracking, wear resistance, Oil resistance, poor oxidation resistance, poor flame retardant effect, brittleness, low impact strength, due to the rigidity of the molecular chain, it is easy to cause stress cracking, and the service life is short. After forming the product, the product performance basically meets the requirements. It has the characteristics of excellent anti-aging performance, oil resistance, wear resistance, good oxidation resistance, good flame retardant effect and high strength.

Method used

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  • A kind of high-strength wear-resistant plastic material and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0031] A high-strength wear-resistant plastic material, made of the following components by weight: 65 parts of fluorenone-based polycondensate, 15 parts of silicon-boron-fluorine copolymer, 5 parts of carbon nanofiber, 1 part of acrylate, K- 1 part resin.

[0032] The preparation method of the fluorenone-based polycondensate comprises the following steps: dissolving 128 g of 9-fluorenone-2,7-dicarboxylic acid and 100 g of 2,3-diamino-9H-fluoren-9-one in dimethylmethylene A solution was formed in 500 g of sulfone, and 30 g of 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride and 20 g of 4-dimethylaminopyridine were added thereto, and stirred for 1 hour under ice-water bath conditions. Stir and react at 40°C for 18 hours, precipitate in water, wash the product 4 times with dichloromethane, and then place it in a vacuum drying oven at 70°C for 12 hours to obtain a fluorenone-based polycondensate.

[0033] The preparation method of the silicon-containing boron-fluorine ...

Embodiment 2

[0039] A high-strength wear-resistant plastic material, which is made of the following components in parts by weight: 70 parts of fluorenone-based condensation polymers, 18 parts of silicon-containing boron-fluorine copolymers, 7 parts of carbon nanofibers, methyl methacrylate-butylene 2 parts of diene-styrene copolymer, 1 part of thermoplastic elastomer POE.

[0040] The preparation method of the fluorenone-based condensation polymer comprises the following steps: dissolving 128 g of 9-fluorenone-2,7-dicarboxylic acid and 100 g of 2,3-diamino-9H-fluoren-9-one in N,N Form a solution in 600g of dimethylformamide, then add 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride 35g, 4-dimethylaminopyridine 25g, ice-water bath condition Stir at low temperature for 1.2 hours, then stir and react at 45°C for 20 hours, precipitate in water, wash the product 5 times with dichloromethane, and then place it in a vacuum drying oven at 73°C for 13 hours to obtain a fluorenone-based po...

Embodiment 3

[0047] A high-strength wear-resistant plastic material, made of the following components in parts by weight: 75 parts of fluorenone-based polycondensate, 20 parts of silicon-boron-fluorine copolymer, 8 parts of carbon nanofiber, and 2 parts of impact modifier , 2 parts of toughening agent; Described impact modifier is acrylate, methyl methacrylate-butadiene-styrene copolymer mixed by mass ratio 2:3; Described toughening agent is K- Resin and thermoplastic elastomer POE are mixed at a mass ratio of 3:5.

[0048] The preparation method of the fluorenone-based polycondensate comprises the following steps: dissolving 128 g of 9-fluorenone-2,7-dicarboxylic acid and 100 g of 2,3-diamino-9H-fluoren-9-one in N-formaldehyde Form a solution in 800g of pyrrolidone, then add 40g of 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, 30g of 4-dimethylaminopyridine, and stir for 1.5 hours under ice-water bath conditions , then stirred and reacted at 50°C for 21 hours, precipitated ...

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Abstract

The invention discloses a high-strength wear-resistant plastic material. The high-strength wear-resistant plastic material is characterized by being prepared from the following components in parts byweight: 65-85 parts of anthrone-based polycondensate, 15-25 parts of silicon / boron / fluorine-containing copolymer, 5-10 parts of carbon nanometer fiber, 1-3 parts of impact modifier, and 1-3 parts of toughening agent. A preparation method of the high-strength wear-resistant plastic material comprises the following steps: S1, putting the components into a high-speed mixer according to a ratio, and uniformly mixing to obtain a mixture; S2, pouring the mixture obtained in step S1 into a twin-screw extruder for extrusion molding; S3, cooling the extruded product obtained in step S2 with circulatingwater of 8-12 DEG C, and pelletizing and packaging to obtain a finished plastic material product. The high-strength wear-resistant plastic material disclosed by the invention has the characteristicsof excellent anti-aging performance, good oil resistance, wear resistance, oxidation resistance, good flame retardant effect and high strength.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a high-strength wear-resistant plastic material and a preparation method thereof. Background technique [0002] In recent years, with the continuous improvement of the quality of life in human society, people have higher requirements for plastic products in terms of appearance, material, and quality of use. Not only are they required to have high impact strength, but they are also required to have excellent Excellent wear resistance, heat resistance, aging resistance, chemical corrosion resistance, flame retardancy, etc. Plastic material is the main material of plastic products, and is an indispensable part of home appliances, automobiles, mobile phones, PCs, medical equipment, and lighting appliances. With the continuous and stable growth of my country's economy, the demand for plastic materials is increasing, and its performance directly affects the rapid developme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L43/04C08L43/02C08L23/08C08L33/12C08L53/02C08K7/06C08G69/32C08F230/08C08F230/06C08F220/32C08F220/44
CPCC08F220/32C08F220/44C08F230/06C08F230/08C08G69/32C08K2201/011C08L77/06C08L2201/02C08L2201/08C08L2205/03C08L2205/035C08L2207/04C08F220/325C08L43/04C08L53/02C08K7/06C08L43/02C08L23/0815C08L33/12
Inventor 董廷显李春山
Owner SHENZHEN HUA WAN CAI IND
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