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High wear-resistant thermoplastic elastomer composition and preparation method thereof

A thermoplastic elastomer and composition technology, applied in the field of thermoplastic elastomers, can solve the problems of unstable product quality, difficult powder dosage, uneven dispersion, etc., and achieve uniform and stable product quality, good wear resistance, and simple operation. Effect

Inactive Publication Date: 2012-07-11
无锡润鹏复合新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Thermoplastic elastomer (TPE) is a new type of polymer material between rubber and resin. It has both the physical and mechanical properties of vulcanized rubber and the processing performance of soft plastics. It is regarded as the most promising third-generation rubber. , There are also a lot of applications in the modification of plastics; however, thermoplastic elastomers have poor wear resistance and short service life, so wear-resistant modifiers must be added to make up for this deficiency. Commonly used wear-resistant modifiers are divided into organic high There are two types of polymer (such as polyurethane) resins and inorganic powder (such as graphite) fillers, among which the latter is the most widely used because of its low price.
However, inorganic powder fillers are very easy to scatter during the addition process, and it is difficult to accurately control the amount of powder according to theoretical measurement, and the phenomenon of uneven dispersion often occurs after addition, resulting in unstable product quality and great environmental impact. pollution

Method used

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  • High wear-resistant thermoplastic elastomer composition and preparation method thereof
  • High wear-resistant thermoplastic elastomer composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) prepare materials according to the following mass percentages:

[0026] Raw material ratio (mass percentage)

[0027] Ethylene-1-octene copolymer 94% 89% 84% 79% 74% 69%

[0028] Graphite powder 5% 10% 15% 20% 25% 30%

[0029] 1010 Antioxidant 1% 1% 1% 1% 1% 1%

[0030] (2) Add the thermoplastic elastomer ethylene-1-octene copolymer and 9 times the mass of tetrahydrofuran into the container, and place it at room temperature for 9 hours to fully swell the ethylene-1-octene copolymer, and then disperse it by ultrasonic vibration for 2 Hour, until the ethylene-1-octene copolymer is completely dissolved and uniformly dispersed to obtain a 10% ethylene-1-octene copolymer solution;

[0031] (3) Add graphite powder and 1010 antioxidant to an appropriate amount of tetrahydrofuran to prepare a suspension, then add them together to a 10% ethylene-1-octene copolymer solution, stir while adding, and stir for 2 hours after adding all To fully disperse graphite powder and 101...

Embodiment 2

[0045] (1) prepare materials according to the following mass percentages:

[0046] Raw material ratio (mass percentage)

[0047]Ethylene-1-octene copolymer 94% 89% 84% 79% 74% 69%

[0048] Serpentine Powder 5% 10% 15% 20% 25% 30%

[0049] 1010 Antioxidant 1% 1% 1% 1% 1% 1%

[0050] (2) Add the thermoplastic elastomer ethylene-1-octene copolymer and tetrahydrofuran 9 times its mass into the container, and place it at room temperature for 8 hours to fully swell the ethylene-1-octene copolymer, and then disperse it by ultrasonic vibration for 2 Hour, until the ethylene-1-octene copolymer is completely dissolved and uniformly dispersed to obtain a 10% ethylene-1-octene copolymer solution;

[0051] (3) The serpentine powder is added to an appropriate amount of tetrahydrofuran to prepare a suspension, then added to 10% ethylene-1-octene copolymer solution, stirred while adding, and stirred for 2 hours after all adding to make the serpentine powder Fully dispersed in 10% ethylene...

Embodiment 3

[0055] (1) prepare materials according to the following mass percentages:

[0056] Raw material ratio (mass percentage)

[0057] Ethylene-1-octene copolymer 94% 89% 84% 79% 74% 69%

[0058] Molybdenum disulfide powder 5% 10% 15% 20% 25% 30%

[0059] 1098 Antioxidant 0.5% 0.5% 0.5% 0.5% 0.5% 0.5%

[0060] (2) Add the thermoplastic elastomer ethylene-1-butene and 9 times the mass of tetrahydrofuran into the container, and place it at room temperature for 10 hours to fully swell the ethylene-1-butene, and then disperse it by ultrasonic vibration for 1 hour until the ethylene - 1-butene is completely dissolved and uniformly dispersed to obtain a 10% ethylene-1-butene solution;

[0061] (3) Add molybdenum disulfide powder and 1098 antioxidant to an appropriate amount of tetrahydrofuran to prepare a suspension, then add it to 10% ethylene-1-butene solution, stir while adding, and stir for 2 hours after all the addition Fully disperse molybdenum disulfide powder and 1098 antioxid...

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Abstract

The invention discloses a high wear-resistant thermoplastic elastomer composition and a preparation method thereof. In the preparation method, a solution mixing co-precipitation method is mainly adopted, inorganic wear-resistant modifier which has significant influence on the thermal properties and tribological properties of polymer-based composite material is added in thermoplastic elastomer solution, and then the high wear-resistant thermoplastic elastomer composition is obtained by co-precipitating, suction filtering, drying, grinding and granulating; and the high wear-resistant thermoplastic elastomer composition can be applied after processing and shaping, and can realize large-scale industrialization preparation. The preparation method has low cost and simple operation, and both thetype and adding quantity of inorganic wear-resistant additive can be accurately controlled in the operation process; therefore, various thermoplastic elastomer compositions with different thermal properties and tribological properties can be obtained according to needs; furthermore, the product has uniform and stable quality, and good wear-resistance, toughness and thermal stability, and is widely applicable to cutting tools, and the fields of friction and circuits.

Description

technical field [0001] The invention relates to a thermoplastic elastomer, in particular to a high wear-resistant thermoplastic elastomer composition and a preparation method thereof. Background technique [0002] Thermoplastic elastomer (TPE) is a new type of polymer material between rubber and resin. It has both the physical and mechanical properties of vulcanized rubber and the processing performance of soft plastics. It is regarded as the most promising third-generation rubber. , There are also a lot of applications in the modification of plastics; however, thermoplastic elastomers have poor wear resistance and short service life, so wear-resistant modifiers must be added to make up for this deficiency. Commonly used wear-resistant modifiers are divided into organic high There are two types of polymer (such as polyurethane) resin and inorganic powder (such as graphite) filler, and the latter is the most widely used because of its low price. However, inorganic powder fil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/16C08K3/04C08K3/34C08K3/36C08K3/30C08K7/20C08K7/08C08J3/215
Inventor 李长生曹可生唐华陈娟王芳菲李国伟
Owner 无锡润鹏复合新材料有限公司