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Method for improving dispersion of hard carbon black in NR/SBR/BR by using PEG

A hard carbon black and dispersing technology, which is applied in the field of improving the dispersion of hard carbon black in NR/SBR/BR with PEG, can solve the problems of thickening, and achieve the effect of improving mechanical properties

Inactive Publication Date: 2017-02-15
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, carbon black has a natural tendency to condense into larger particles in solvents or resins. Even if it is ground to the required fineness, it will still return to coarse after a period of storage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] Example 1: Put 50g of natural rubber (NR SCR5) on the double-roll mill for mastication, then add 40g of SBR15000 and 10g of BR9000 for thinning, then add 0.5g of PEG2000, 5g of activator zinc oxide, 1g of stearic acid, The amine anti-aging agent is N-isopropyl-N'-phenyl-p-phenylenediamine (4010NA) 1g, paraffin 1.5g and mixed, reinforcing carbon black N33050g, aromatic oil 6g, vulcanization accelerator (NOBS) 1.5g, Finally, 2.5g of sulfur was added, mixed uniformly on an open mill to obtain a mixed rubber, and then it was vulcanized on a plate at 145°C to obtain a vulcanized rubber, and its mechanical properties were measured after punching, see Table 1.

example 2

[0023] Example 2: Put 50g of natural rubber (NR SCR5) on the double-roll mill for mastication, then add 40g of SBR15000, 10g of BR9000 for thin pass, then add 1g of PEG2000, 5g of activator zinc oxide, 1g of stearic acid, amine The anti-aging agent is N-isopropyl-N'-phenyl-p-phenylenediamine (4010NA) 1g, paraffin 1.5g, mixing, reinforcing carbon black N33050g, aromatic oil 6g, vulcanization accelerator (NOBS) 1.5g, and finally Add 2.5g of sulfur, mix uniformly on the open mill to obtain the mixed rubber, and then vulcanize it on a plate at 145°C to obtain the vulcanized rubber, and measure its mechanical properties after punching, see Table 1.

example 3

[0024] Example 3: Put 50g of natural rubber (NR SCR5) on the double-roll mill for mastication, then add 40g of SBR15000 and 10g of BR9000 for thinning, then add 1.5g of PEG2000, 5g of activator zinc oxide, 1g of stearic acid, The amine anti-aging agent is N-isopropyl-N'-phenyl-p-phenylenediamine (4010NA) 1g, paraffin 1.5g and mixed, reinforcing carbon black N33050g, aromatic oil 6g, vulcanization accelerator (NOBS) 1.5g, Finally, 2.5g of sulfur was added, mixed uniformly on an open mill to obtain a mixed rubber, and then it was vulcanized on a plate at 145°C to obtain a vulcanized rubber, and its mechanical properties were measured after punching, see Table 1.

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PUM

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Abstract

The invention relates to a method for improving dispersion of hard carbon black in NR / SBR / BR by using PEG. According to the method, a used matrix rubber is a three-component mixture composed of natural rubber, styrene-butadiene rubber and butadiene rubber; a used vulcanization system is a sulphur vulcanization system; a used vulcanization promoter is sulfonamide (NOBS); used antioxidants are amine antioxidants (RD and 4010NA); and a used strengthening agent is N330. The method provided by the invention uses sulfur as a vulcanizing agent, so every performance of a prepared rubber material reaches national standard in China; and through addition of a proper amount of PEG, the prepared rubber material has improved mechanical performance.

Description

technical field [0001] The invention relates to a method for dispersing hard carbon black in NR / SBR / BR, in particular to a method for improving the dispersion of hard carbon black in NR / SBR / BR by using PEG. Background technique [0002] Polyethylene glycol (PEG) is currently widely used in all walks of life. In rubber, it mainly neutralizes the acidity of fillers, accelerates vulcanization speed and crosslinking density, has good water solubility, and has good compatibility with many organic components. Solubility, with excellent lubricity and dispersibility, when used as a dispersant in the rubber compound of various fillers and colorants, it can reduce or eliminate the influence of fillers on vulcanization, make various additives disperse evenly, and improve the durability of rubber products. physical and mechanical properties. [0003] As an important reinforcing agent in tire products, carbon black is a black rubber reinforcing filler with low density, small particle si...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/06C08L9/00C08L91/06C08L71/02C08K13/02C08K3/04C08K3/22C08K5/09C08K3/06C08K5/47C08K5/3437C08K5/18
CPCC08L7/00C08L2205/02C08L2205/035C08L9/06C08L9/00C08L91/06C08L71/02C08K13/02C08K3/04C08K2003/2296C08K5/09C08K3/06C08K5/47C08K5/3437C08K5/18
Inventor 王重刘浩张舒雅武文斌孟唯
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY