Nano-carbon conductive high-toughness black masterbatch and preparation method thereof

A high-toughness, nano-carbon technology, applied in the field of nano-carbon conductive high-toughness black masterbatch and its preparation, can solve the problems of affecting the mechanical properties of the resin, not having electrical conductivity, and insufficient electrical conductivity, etc., to achieve mechanical properties retention and good temperature stability Sexuality, the effect of solving unresponsiveness

Active Publication Date: 2021-03-19
茂康材料科技(常熟)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional black masterbatch does not have obvious conductivity or the conductivity is not enough and affects the mechanical properties of the resin itself. Therefore, the present invention aims to develop a new type of nano-carbon conductive high-toughness black masterbatch to make up for the gap in the market

Method used

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Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] A preparation method of nano-carbon conductive high-toughness black masterbatch, comprising the following steps: stirring-banburying-extrusion-granulation-dehydration-sieving-magnetic-passing-homogenization-encapsulation, specifically including:

[0036] (1) According to parts by weight, weigh 48 to 65 parts of resin, 11 to 35 parts of carbon conductive composition, and 2 to 10 parts of modifier. The weight ratio of carbon black and carbon nanotubes in the carbon conductive composition is 3:1~3:3;

[0037] (2) Pre-disperse the carbon nanotubes: put the carbon nanotubes into a high-temperature mixer, and carry out high-temperature stirring and wetting with vinylamide to facilitate the mixing uniformity of the carbon nanotubes, modifiers, and resins in the later stage.

[0038] (3) Mix and stir 11 to 35 parts of the carbon conductive composition and 2 to 10 parts of the modifier to obtain a mixture a;

[0039] (4) Mix mixture a and 48 to 65 parts of resin and stir evenly...

Embodiment 1

[0044] A nano-carbon conductive high-toughness black masterbatch is prepared from a resin, a carbon conductive composition and a modifier. The nano-carbon conductive high-toughness black masterbatch includes the following components in parts by weight:

[0045] 60 parts of resin

[0046] 35 parts carbon conductive composition

[0047] Modifier 5 parts.

[0048] The DBP absorption value of carbon black is 150×10 -5 m 3 / kg~160×10 -5 m 3 / kg, the outer diameter of carbon nanotubes is 50nm-80nm, and the weight ratio of carbon black to carbon nanotubes is 3:2.

Embodiment 2

[0050] A nano-carbon conductive high-toughness black masterbatch is prepared from a resin, a carbon conductive composition and a modifier. The nano-carbon conductive high-toughness black masterbatch includes the following components in parts by weight:

[0051] 50 parts of resin

[0052] Carbon conductive composition 15 parts

[0053] Modifier 8 parts.

[0054] The DBP absorption value of carbon black in the carbon conductive composition is 160×10 -5 m 3 / kg~180×10 -5 m3 / kg, the outer diameter of carbon nanotubes is 80nm to 120nm, and the weight ratio of carbon black to carbon nanotubes is 3:2.

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Abstract

The invention discloses a nanocarbon conductive high-toughness black masterbatch and a preparation method thereof, the nanocarbon conductive high-toughness black masterbatch is prepared from resin, acarbon conductive composition and a modifier, the pipe diameter of a carbon nanotube in the carbon conductive composition is 50-300nm, the pipe diameter ratio is 300-600, and the DBP absorption valueof carbon black is 150 *10 <-5>-210 *10<-5> M<3> / kg. According to the nano-carbon conductive high-toughness black masterbatch and the preparation method thereof provided by the invention, the carbon nanotubes are firstly subjected to pre-dispersion treatment, so that the later mixing uniformity is improved, the black masterbatch has extremely high conductivity and dispersity, the product has antistatic property and permanent retentivity, the resistance value is relatively low, and the mechanical properties of resin are greatly retained; and moreover, the temperature stability is good, the piezoresistive linearity is better, the dosage is small, the use of precise key equipment can be met, and the problems of slow response, short service life, large resistance and the like of the existing plastic electric conductor and the like are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of black masterbatch preparation, and in particular relates to a nano-carbon conductive high-toughness black masterbatch and a preparation method thereof. Background technique [0002] Most of the current black masterbatches are plastic colorants that are well dispersed with a high proportion of carbon black or additives and thermoplastic resins. It has good compatibility; after mixing and granulating carbon black with natural resin and additives to form black plastic, it is used in the molding process; black masterbatch makes carbon black have better dispersibility in the product, and the carrier of special black masterbatch It is the same as the plastic of the product, and has good matching. After heating and melting, the carbon black particles can be well dispersed in the plastic of the product, which is beneficial to maintain the coloring of carbon black. If carbon black is used directly, due to the Whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/10C08L51/00C08L23/30C08K3/04C08K5/524C08J3/22
CPCC08J3/226C08J2463/10C08J2451/00C08J2423/30C08K3/04C08K3/041C08K5/524C08K2201/001C08K2201/003C08K2201/016C08K2201/017
Inventor 唐胜李卫平
Owner 茂康材料科技(常熟)有限公司
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