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Calcium sulfate whisker modified butadiene styrene rubber composite and preparation process thereof

A technology of calcium sulfate whiskers and styrene-butadiene rubber, which is applied in the field of modified styrene-butadiene rubber composite materials and its preparation, can solve the problems of low strength, unstable performance, poor toughness and the like, and achieves good toughness, stable performance and high strength. Effect

Active Publication Date: 2011-07-27
XIANGFU NEW BUILDING MATERIAL HUNAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its strength is low, its toughness is poor, and its performance is not stable, which limits its further application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The calcium sulfate whisker modified styrene-butadiene rubber composite material in this embodiment is made of the following raw materials in parts by weight: 100 parts of styrene-butadiene rubber SBR, 15 parts of calcium sulfate whiskers, 15 parts of furnace carbon black, and 1 part of sulfur. 1 part NS, 3 parts zinc oxide, 2 parts stearic acid, 1 part titanate coupling agent.

[0016] Preparation:

[0017] (1) Add calcium sulfate whiskers to a high-speed mixer, add titanate coupling agent at 100°C, and mix for 8 minutes to obtain modified calcium sulfate whiskers, which are dried for use;

[0018] (2) Mix styrene-butadiene rubber, modified calcium sulfate whiskers and furnace carbon black on an open mill for 5 minutes;

[0019] (3) Add sulfur, NS, stearic acid and zinc oxide, knead for 6 minutes, and make flakes; the roller spacing is 0.5mm~2mm, and the roller temperature is 100°C.

[0020] The mechanical performance test of the product of this embodiment is carried...

Embodiment 2

[0022] The calcium sulfate whisker modified styrene-butadiene rubber composite material in this embodiment is made of the following raw materials in parts by weight: 100 parts of styrene-butadiene rubber SBR, 20 parts of calcium sulfate whiskers, 15 parts of furnace carbon black, and 1 part of sulfur. 1 part NS, 3 parts zinc oxide, 2 parts stearic acid, 1 part titanate coupling agent.

[0023] Preparation:

[0024] (1) Add calcium sulfate whiskers to a high-speed mixer, add titanate coupling agent at 100°C, and mix for 7 minutes to obtain modified calcium sulfate whiskers, which are dried for use;

[0025] (2) Mix styrene-butadiene rubber, modified calcium sulfate whiskers and furnace carbon black on an open mill for 6 minutes;

[0026] (3) Add sulfur, NS, stearic acid and zinc oxide, knead for 5 minutes, and make flakes; the roller spacing is 0.5mm~2mm, and the roller temperature is 100°C.

[0027] The mechanical performance test of the product of this embodiment is carried...

Embodiment 3

[0029] The calcium sulfate whisker modified styrene-butadiene rubber composite material in this embodiment is made of the following raw materials in parts by weight: 100 parts of styrene-butadiene rubber SBR, 25 parts of calcium sulfate whiskers, 20 parts of furnace carbon black, 1.5 parts of sulfur, and Agent NS 1 part, zinc oxide 3 parts, stearic acid 2 parts, titanate coupling agent 2 parts. .

[0030] Preparation:

[0031] (1) Add calcium sulfate whiskers to a high-speed mixer, add titanate coupling agent at 100°C, and mix for 9 minutes to obtain modified calcium sulfate whiskers, which are dried for use;

[0032] (2) Mix styrene-butadiene rubber, modified calcium sulfate whiskers and furnace carbon black on an open mill for 7 minutes;

[0033] (3) Add sulfur, NS, stearic acid and zinc oxide, knead for 4 minutes, and make flakes; the roller spacing is 0.5mm~2mm, and the roller temperature is 100°C.

[0034] The mechanical performance test of the product of this embodime...

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PUM

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Abstract

The invention relates to a calcium sulfate whisker modified butadiene styrene rubber composite and a preparation process thereof. The calcium sulfate whisker modified butadiene styrene rubber composite is prepared from the following materials in parts by weight: 100 parts of butadiene styrene rubber, 15-25 parts of calcium sulfate whisker, 10-20 parts of furnace black, 0.5-1.5 parts of sulphur, 0.5-2 parts of accelerator, 2-4 parts of zinc oxide, 1-3 parts of stearic acid and 1-3 parts of titanate coupling agent. The preparation method comprises the following steps: weighing the raw materialsat a weight ratio; adding the calcium sulfate whisker into a high-speed mixer; adding the titanate coupling agent into the mixture at 98-102 DEG C and mixing for 6-10 minutes to obtain the modified calcium sulfate whisker; blending the butadiene styrene rubber, calcium sulfate whisker and furnace black on an open mill for 5-7 minutes; and adding the sulphur, accelerator NS, stearic acid and zinc oxide for blending for 3-6 minutes to prepare into slices. The calcium sulfate whisker modified butadiene styrene rubber composite in the invention has the advantages of high strengthen, good toughness and stable performance and can be widely applied to the manufacturing of tyres, rubber sacs, rubber overshoes and the like.

Description

technical field [0001] The invention relates to a modified styrene-butadiene rubber composite material and a preparation process thereof, in particular to a calcium sulfate whisker-modified styrene-butadiene rubber (SBR) composite material and a preparation process thereof. Background technique [0002] Styrene-butadiene rubber (SBR) is a copolymer of butadiene and styrene. Because it is a general-purpose rubber and cheap, 70% of it is used in the tire industry, and it is also widely used in the fields of pipes, belts and shoes. However, its low strength, poor toughness, and unstable performance limit its further application. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the shortcomings of existing styrene-butadiene rubber and provide a calcium sulfate whisker-modified styrene-butadiene rubber composite material with high strength, good toughness and stable performance and its preparation process. [0004] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08K13/06C08K9/04C08K7/08C08K3/04C08K3/06C08K3/22C08K5/09
Inventor 刘珍如刘立文付桃梅杨志强宁勇鲁纪鸣
Owner XIANGFU NEW BUILDING MATERIAL HUNAN