Thermoplastic elastomer with both electrical conductivity and flame retardancy and preparation method thereof

A thermoplastic elastomer, flame-retardant technology, applied in the field of thermoplastic elastomer and its preparation, can solve the problems of product mechanical strength decline, poor temperature resistance, intolerance to strong polar solvents and strong acid-base media, etc., to achieve strong electrical conductivity The effect of stability, good mechanical strength and simple process

Active Publication Date: 2022-06-21
江苏金陵奥普特高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Antistatic and flame retardant elastomers currently on the market mainly focus on thermoplastic elastomers prepared based on polar polymers, such as polyurethane elastomers. This product has its own polarity and can achieve better performance at a lower amount of carbon black. Antistatic, but its shortcomings are also obvious. The product is not resistant to strong polar solvents and strong acid-base media. Therefore, there are obvious limitations in the selection of polar thermoplastic elastomers for high-risk transport media. At the same time, the product’s resistance The temperature resistance is poor, which also leads to the need to add a large amount of flame retardants to prevent the material from being flame-retardant, which also indirectly leads to a decrease in the mechanical strength of the product

Method used

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  • Thermoplastic elastomer with both electrical conductivity and flame retardancy and preparation method thereof
  • Thermoplastic elastomer with both electrical conductivity and flame retardancy and preparation method thereof
  • Thermoplastic elastomer with both electrical conductivity and flame retardancy and preparation method thereof

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Effect test

Embodiment 1

[0045] The preparation method of thermoplastic elastomer with both electrical conductivity and flame retardancy is as follows:

[0046] a), measure according to weight ratio, firstly take 1 part of coupling agent, put it into ethanol solution, stir and mix, and adjust PH to be weakly alkaline, make it hydrolyzed, then take 16 parts of conductive medium, described The DBP absorption value of conductive carbon black is 170-185ml / g, the iodine absorption value is 360Mg / g, and the particle size is 9-17nm. Carbon content≥95%, volume resistivity≤1.5*10 -3 Ω.cm. Add in it and stir, then heat in a water bath to volatilize ethanol to obtain a pretreated mixed conductive medium, then weigh 10 parts of random polypropylene into a high-speed mixer, and the polypropylene melt flow rate is 16±3. Then add 10 parts of conductive carbon black, add 0.1 part of stabilizer, 0.1 part of antioxidant, stir for one minute, finally add 0.4 part of lubricant, knead for one minute and then process and...

Embodiment 2

[0051] The preparation method of thermoplastic elastomer with both electrical conductivity and flame retardancy is as follows:

[0052] a), measure according to weight ratio, firstly take 1 part of coupling agent, put it into ethanol solution, stir and mix, and adjust PH to be weakly alkaline, make it hydrolyzed, then take 16 parts of conductive medium, described The DBP absorption value of conductive carbon black is 170-185ml / g, the iodine absorption value is 360Mg / g, and the particle size is 9-17nm. Carbon content≥95%, volume resistivity≤1.5*10 -3 Ω.cm. Add in it and stir, then heat in a water bath to volatilize ethanol to obtain a pretreated mixed conductive medium, then weigh 10 parts of random polypropylene into a high-speed mixer, and the polypropylene melt flow rate is 16±3. Then add 10 parts of conductive carbon black, add 0.1 part of stabilizer, 0.1 part of antioxidant, stir for one minute, finally add 0.4 part of lubricant, knead for one minute and then process and...

Embodiment 3

[0058] The preparation method of thermoplastic elastomer with both electrical conductivity and flame retardancy is as follows:

[0059] a), measure according to weight ratio, firstly take 1 part of coupling agent, put it into ethanol solution, stir and mix, and adjust PH to be weakly alkaline, make it hydrolyzed, then take 16 parts of conductive medium, described The DBP absorption value of conductive carbon black is 170-185ml / g, the iodine absorption value is 360Mg / g, and the particle size is 9-17nm. Carbon content≥95%, volume resistivity≤1.5*10 -3 Ω.cm. Add in it and stir, then heat in a water bath to volatilize ethanol to obtain a pretreated mixed conductive medium, then weigh 10 parts of random polypropylene into a high-speed mixer, and the polypropylene melt flow rate is 16±3. Then add 10 parts of conductive carbon black, add 0.1 part of stabilizer, 0.1 part of antioxidant, stir for one minute, finally add 0.4 part of lubricant, knead for one minute and then process and...

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Abstract

The invention discloses a thermoplastic elastomer with both electrical conductivity and flame retardancy and a preparation method thereof, belonging to the technical field of thermoplastic elastomer materials, and the components are: non-polar rubber, polyolefin resin, conductive medium, flame retardant, Maleic anhydride grafted non-polar rubber, maleic anhydride grafted polyolefin resin, polar rubber, crosslinking agent, auxiliary crosslinking agent, white oil, processing aid; Activation pretreatment; then melt blending with polyolefin resin; then with non-polar rubber, polar rubber, maleic anhydride grafted non-polar rubber, maleic anhydride grafted non-polar resin, conductive medium as the base material, An additional compound flame retardant was added for melt blending to prepare antistatic flame retardant elastomer. The invention takes into account the advantages of mechanical properties under the premise of ensuring good antistatic properties, has high fluidity, is easy to process, and has good weather resistance and aging resistance, and has great significance for expanding the application field of thermoplastic elastomers.

Description

Technical field: [0001] The invention relates to the technical field of thermoplastic elastomer materials, in particular to a thermoplastic elastomer with both electrical conductivity and flame retardancy and a preparation method thereof. Background technique: [0002] Thermoplastic elastomer is a high-performance material with a composite structure with physical properties between rubber and plastic. It has both the elasticity of rubber and the ease of processing of plastic. Has formed a new "industrial raw material system", known as "the third generation of rubber". The elastomer prepared with styrene block copolymer as the base material is called TPE (Thermoplastic Elastome), which can be processed by general thermoplastic molding machines, with high production efficiency, excellent processing performance, no need for vulcanization, can be recycled to reduce costs, and soft to the touch. , has good weather resistance, fatigue resistance and temperature resistance. At pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L53/02C08L23/12C08L71/12C08L91/06C08K13/06C08K3/04C08K7/06C08K5/3492C08K5/5313C08J3/22
CPCC08L53/025C08J3/226C08J2423/12C08K13/06C08K3/04C08K7/06C08K2201/001C08K2201/011C08L2205/035C08L2201/04C08L2201/02C08L2207/04C08L23/12C08L71/12C08L91/06C08K5/34922C08K5/5313
Inventor 吴佳骏陈忠基
Owner 江苏金陵奥普特高分子材料有限公司
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