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Nano-reinforced wear-resistant composite rubber material

A composite rubber and nano-reinforced technology, which is applied in the field of nano-reinforced wear-resistant composite rubber materials to achieve the effects of reducing agglomeration, better dispersion and tighter bonding

Inactive Publication Date: 2020-01-10
苏州鼎立工业胶辊有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the surface is treated with surfactants or coupling agents to increase the dispersion of fillers, but this method has certain limitations for improving the wear resistance of materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The nano-reinforced wear-resistant composite rubber material of the present invention comprises 100 parts by weight of nitrile rubber, 20 parts of modified attapulgite, 3 parts of multi-walled carbon nanotubes, 1 part by weight of stearic acid, 2 parts by weight Part sulfur, 1 part by weight of accelerator DM and 0.5 part by weight of accelerator CZ, wherein the particle size of the multi-walled carbon nanotubes is 400-700, and the particle size of the modified attapulgite is 20-100nm.

[0031] The preparation method of modified attapulgite is:

[0032] The first step: purification of attapulgite;

[0033] The second step: using an impact crusher to crush;

[0034] The third step: use fluidized bed jet mill for further pulverization;

[0035] Step 4: Place the pulverized attapulgite in H at a pH of 4 2 o 2 In the solution, treat at a temperature of 85°C for 3h;

[0036] Step 5: Under normal temperature conditions, soak the treated attapulgite in 3wt% polyethyleneim...

Embodiment 2

[0041] The nano-reinforced wear-resistant composite rubber material of the present invention comprises 100 parts by weight of nitrile rubber, 25 parts of modified palygorskite, 5 parts of multi-walled carbon nanotubes and 1.2 parts by weight of stearic acid, 2.5 parts by weight Part sulfur, 1.5 parts by weight accelerator DM and 0.7 parts by weight accelerator CZ, wherein the particle size of the multi-walled carbon nanotubes is 400-700, and the particle size of the modified palygorskite is 20-200nm.

[0042] The preparation method of modified palygorskite is:

[0043] The first step: the purification of palygorskite;

[0044] The second step: using an impact crusher to crush;

[0045] The third step: use fluidized bed jet mill for further pulverization;

[0046] Step 4: Place the pulverized palygorskite in H at a pH of 4 2 o 2 In the solution, treat at a temperature of 85°C for 3h;

[0047] Step 5: Under normal temperature conditions, soak the treated palygorskite in 3wt...

Embodiment 3

[0052] The nano-reinforced wear-resistant composite rubber material of the present invention comprises 100 parts by weight of neoprene, 25 parts of modified attapulgite, 6 parts of multi-walled carbon nanotubes, 1.3 parts by weight of stearic acid, 2.5 parts by weight Part sulfur, 1.5 parts by weight accelerator DM and 0.8 parts by weight accelerator CZ, wherein the particle size of the multi-walled carbon nanotubes is 400-700, and the particle size of the modified attapulgite is 20-200nm.

[0053] The preparation method of modified attapulgite is:

[0054] The first step: purification of attapulgite;

[0055] The second step: using an impact crusher to crush;

[0056] The third step: use fluidized bed jet mill for further pulverization;

[0057] Step 4: Place the pulverized attapulgite in H at a pH of 4 2 o 2 In the solution, treat at a temperature of 85°C for 3h;

[0058] Step 5: Under normal temperature conditions, soak the treated attapulgite in 3wt% polyethyleneimine...

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Abstract

The invention provides a nano-reinforced wear-resistant composite rubber material. The nano-reinforced wear-resistant composite rubber material comprises, by weight, 100 parts of rubber, 20-30 parts of modified acicular silicate, 3-8 parts of multi-walled carbon nanotubes and a compounding agent. The nano-reinforced wear-resistant composite rubber material is prepared by the following steps: adjusting the roller spacing of a double-roller open mill to be minimum, adding the rubber, then slowly adding the modified acicular silicate and multi-walled carbon nanotubes, performing uniform mixing, then sequentially adding the compounding agent to obtain a mixture, and vulcanizing the mixture in a press vulcanizer at a vulcanizing temperature of 160 DEG C. A rubber roller made by coating a metalcore with the nano-reinforced wear-resistant composite rubber has the advantages of good wear resistance, excellent mechanical properties and remarkably prolonged service life.

Description

technical field [0001] The invention relates to the field of polymer functional materials, in particular to a nano-reinforced wear-resistant composite rubber material. Background technique [0002] At present, the traditional reinforcing agents used in rubber are carbon black and white carbon black, among which carbon black has the best reinforcing effect, because of its strong coloring ability, it is generally only suitable for black rubber products. The reinforcing effect of white carbon black is second only to carbon black, surpassing any other white reinforcing agent, but the price of carbon black and white carbon black is relatively high, so the development and utilization of reinforcing agents made of rich natural minerals are beneficial to Polymer modification is becoming more and more important, such as the research on acicular silicate / compound composites has become a hot spot. [0003] Acicular silicate is a natural layer chain-like hydrous magnesium-rich aluminum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L11/00C08K13/06C08K9/04C08K7/10C08K3/04C08K3/06C08K5/09
CPCC08J5/005C08K3/06C08K5/09C08K7/10C08K9/04C08K9/08C08K13/06C08K2201/011C08K3/041C08L9/02C08L11/00
Inventor 钱林根
Owner 苏州鼎立工业胶辊有限公司
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