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Rubber material for windscreen wipers, preparation method thereof and process for producing windscreen wiper from the rubber material

A technology for wipers and rubber strips, applied in the field of auto parts, can solve the problems of high temperature resistance and cold resistance of wiper rubber strips, difficulty in disposal of rubber strips, damage to soil ecology, etc. The use of sulfur additives and the effect of simple process

Active Publication Date: 2013-05-29
广西科泰科技信息咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rubber strip described in this invention has good tensile strength and elongation at break, but because it adopts natural rubber, it must add additives such as various sulfur-containing compounds and petroleum hydrocarbons in the preparation process, which not only It consumes a lot of petrochemical energy, and the rubber strips of this type of formula will emit harmful gases during the production process, which will cause great pollution to the environment; at the same time, it is difficult to dispose of rubber strips made of natural rubber, and toxic gases will be generated during incineration. Does not degrade, destroys soil ecology
In addition, the performance of wiper rubber strips made of natural rubber is insufficient in terms of high temperature resistance and cold resistance.

Method used

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  • Rubber material for windscreen wipers, preparation method thereof and process for producing windscreen wiper from the rubber material
  • Rubber material for windscreen wipers, preparation method thereof and process for producing windscreen wiper from the rubber material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1. Composition of rubber material:

[0042] 100 parts of methyl vinyl silicone rubber;

[0043] 50 parts of fumed silica N20;

[0044] Hydroxy silicone oil (viscosity is 25cp, hydroxyl content is 8%) 1.5 parts;

[0045] Benzyl silicone oil 7.8 parts;

[0046] 0.2 part of iron oxide black;

[0047] 1.2 parts of double two tetra vulcanizing agent.

[0048] Second, the preparation method of rubber material:

[0049] 1) homogeneously mixing fumed silica N O, hydroxy silicone oil and benzyl silicone oil to obtain a mixture;

[0050] 2) Put the methyl vinyl silicone rubber of the formula amount into the kneader at one time, open the lid and knead for 10min, then divide the above-mentioned mixed material into 3 times, and put the same amount into the kneader each time (the material to be put in for the first time) After mixing with methyl vinyl silicone rubber, the second input can be carried out, and the third input can be carried out after the second input material is ...

Embodiment 2

[0056] 1. Composition of rubber material:

[0057] 100 parts of methyl vinyl silicone rubber;

[0058] 30 parts of fumed silica N20;

[0059] Hydroxy silicone oil (viscosity is 30cp, hydroxyl content is 9%) 1.0 part;

[0060] Dimethicone 5.0 parts;

[0061] Titanium dioxide 0.2 part;

[0062] 1.2 parts of double two tetra vulcanizing agent.

[0063] Second, the preparation method of rubber material:

[0064]1) mixing gas phase method silica N20, hydroxy silicone oil and dimethyl silicone oil to obtain a mixture;

[0065] 2) put the methyl vinyl silicone rubber of the formula amount into the kneader at one time, open the lid and knead for 12min, then divide the above-mentioned mixed material into 2 times, and put the same amount into the kneader each time (the material to be put in for the first time) After mixing with methyl vinyl silicone rubber, the second injection can be carried out), after all the mixed materials are injected, the mixture is semi-closed and mixed fo...

Embodiment 3

[0070] 1. Composition of rubber material:

[0071] 100 parts of methyl vinyl silicone rubber;

[0072] 40 parts of fumed silica N20;

[0073] Hydroxy silicone oil (viscosity is 30cp, hydroxyl content is 8%) 2.5 parts;

[0074] 6 parts of fluorosilicone oil;

[0075] 1.5 parts of titanium yellow;

[0076] 0.8 part of bis-ditetra-vulcanizing agent.

[0077] Second, the preparation method of rubber material:

[0078] 1) Mix fumed silica N20, hydroxy silicone oil and fluorosilicone oil to obtain a mixture;

[0079] 2) Put the methyl vinyl silicone rubber of the formula amount into the kneader at one time, open the lid and knead for 8min, then divide the above-mentioned mixed material into 3 times and put it into the kneader (the first time, the second time and the third time). The amount of input is 1 / 2, 1 / 4 and 1 / 4 of the total weight of the mixture; the second input can be carried out after the first input material and methyl vinyl silicone rubber are evenly mixed, and the...

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PUM

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Abstract

The invention discloses a rubber material for windscreen wipers, a preparation method of the ionomer-metal composite artificial muscle, and a process for producing a windscreen wiper from the rubber material. The rubber material contains the following ingredients in parts by weight: 100 of methylvinylsilicone rubber, 20 to 55 of fumed silica N20, 1 to 2.5 of hydroxylsilicone oil, 5 to 10 of lubricants, 0 to 1.7 of colorants, and 0.8 to 2.5 of 2,4-dichlorobenzoyl peroxide. In the rubber material, methylvinylsilicone rubber replaces natural rubber or a composition of natural rubber and other synthetic rubber in the existing formula, the fumed silica N20 is used as reinforcing agent, the structure of fumed silica N20 is controlled by hydroxylsilicone oil, so that the high / low temperature resistance of the rubber material is improved an the strength of the rubber material is increased, and the rubber material is easier to be processed. The special lubricants are adopted to endow the rubber material with excellent hydrophobicity, which prevents water from being attached on the glass surface after cleaning the glass windscreen.

Description

technical field [0001] The invention relates to an automobile part, in particular to a rubber compound for an automobile wiper strip, a preparation method thereof, and a process for preparing the wiper strip with the rubber compound. Background technique [0002] The formula of the existing automobile wiper strip is usually made by mixing and vulcanizing EPDM rubber alone, or other synthetic rubbers such as natural rubber and styrene-butadiene rubber together with suitable additives. For example, the Chinese invention patent with publication number CN101891905A discloses a boneless wiper strip, including natural rubber, vulcanizing agent, vulcanization accelerator, vulcanization activator, anti-scorch agent, anti-aging agent, reinforcing agent, filler, softener Auxiliary component, wherein the mass ratio of natural rubber and auxiliary component is 100: 500~1200, and described auxiliary component also includes one or two selected from styrene-butadiene rubber, neoprene rubbe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/06C08K3/04C08K3/22B29C47/92B29C35/02B29C48/92
CPCB29C48/92B29C48/397B29C2948/92561B29C2948/92704B29C2948/92895
Inventor 罗华兴
Owner 广西科泰科技信息咨询有限公司