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Heat-resistant and cold-resistant air chamber rubber diaphragm material and preparation method thereof

A rubber diaphragm and air chamber technology, which is applied in the field of air chamber rubber diaphragm materials and its preparation, can solve the problems that rubber materials cannot meet high temperature resistance, low temperature resistance, and aging resistance at the same time, so as to improve anti-aging performance and low temperature resistance performance , good tensile properties

Pending Publication Date: 2022-03-01
NINGGUO HAI TIAN LI IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a heat-resistant, cold-resistant air chamber rubber diaphragm material and its preparation method, which overcomes the deficiencies in the prior art and solves the problem that rubber materials cannot simultaneously meet the properties of high temperature resistance, low temperature resistance and aging resistance

Method used

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  • Heat-resistant and cold-resistant air chamber rubber diaphragm material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] First, 60kg of natural rubber and 30kg of styrene-butadiene rubber were masticated on an internal mixer for 6 minutes at a speed of 60r / min, then kneaded for 3 minutes at a speed of 40r / min, and the mixing temperature was 110°C. hour; then add activator zinc oxide 5kg, activator stearic acid 1kg, anti-scorch agent CTP 0.3kg, composite anti-aging agent 4kg (wherein anti-aging agent RD 1kg, anti-aging agent 4010NA2kg, anti-aging agent A 1kg), dispersant L-24 1kg, dioctyl sebacate 6kg, mixing 1min, obtains mixing material; Mixing material and composite carbon black 65kg (high abrasion-resistant carbon black 330 25kg, quick extrusion carbon black 550 40kg), mixing 3min turn over Glue, the mixing temperature is 130 ℃, then deglue, sheet, parked for 24 hours, to obtain the premix; add composite accelerator 3kg (wherein the accelerator 4,4'-dithiodimorph 1.0kg of morphine, 2.0kg of accelerator CZ), 0.6kg of sulfur S-80, kneading for 2min at a temperature of 80°C, and dischargi...

Embodiment 2

[0023] First, 70kg of natural rubber and 40kg of styrene-butadiene rubber were masticated on an internal mixer for 8 minutes at a speed of 50r / min, then kneaded for 2 minutes at a speed of 30r / min, and the mixing temperature was 115°C, then the glue was removed, the sheets were released, and parked for 24 Hour; Then add activator zinc oxide 4kg, activator stearic acid 2kg, anti-scorch agent CTP 0.5kg, composite anti-aging agent 8kg (wherein anti-aging agent RD 2kg, anti-aging agent 4010NA4kg, anti-aging agent A 2kg), dispersant L-24 2kg, dioctyl sebacate 8kg, mixing 2min, obtains mixing material; Mixing material and composite carbon black 80kg (high abrasion-resistant carbon black 330 35kg, quick extrusion carbon black 550 45kg), mixing 5min turns over Glue, mixing temperature is 140 ℃, then deglue, sheet, stop for 24 hours to obtain premix; add composite accelerator 5kg (wherein accelerator 4,4'-dithiodimorph 2.0kg of morphine, 3.0kg of accelerator CZ), 0.8kg of sulfur S-80, ...

Embodiment 3

[0025] First, 65kg of natural rubber and 35kg of styrene-butadiene rubber were masticated on an internal mixer for 7 minutes at a speed of 55r / min, then kneaded for 2-3 minutes at a speed of 30r / min at a mixing temperature of 115°C, and then the glue was removed and the sheet was discharged. Park for 24 hours; then add active agent zinc oxide 5kg, active agent stearic acid 2kg, anti-scorch agent CTP 0.5kg, compound anti-aging agent 6kg (including anti-aging agent RD 1kg, anti-aging agent 4010NA 3kg, anti-aging agent A 2kg), dispersant L-24 2kg, dioctyl sebacate 7kg, mixing 2min, obtain mixing material; Mixing material and composite carbon black 75kg (high abrasion-resistant carbon black 330 30kg, quick extrusion carbon black 550 45kg), mixing Refining for 5 minutes to turn over the glue, the mixing temperature is 140°C, then deglue, take out the sheet, and park for 24 hours to obtain the premix; add 4kg of composite accelerator (wherein the accelerator 4,4'-disulfide Dimorphol...

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Abstract

The invention discloses a heat-resistant and cold-resistant air chamber rubber diaphragm material and a preparation method thereof. Comprising the following raw materials in parts by weight: 60-70 parts of natural rubber, 30-40 parts of butadiene styrene rubber, 4-5 parts of zinc oxide, 1-2 parts of stearic acid, 0.3-0.5 part of a scorch retarder CTP, 1-2 parts of a dispersant L-24, 6-8 parts of dioctyl sebacate, 0.6-0.8 part of sulfur, 4-8 parts of a composite anti-aging agent, 65-80 parts of composite carbon black and 3-5 parts of a composite accelerant. The problem that a rubber material cannot meet high temperature resistance, low temperature resistance and aging resistance at the same time is solved.

Description

technical field [0001] The invention relates to the technical field of rubber diaphragm materials, in particular to a heat-resistant and cold-resistant air chamber rubber diaphragm material and a preparation method thereof. Background technique [0002] Automobile brake air chamber rubber diaphragm, a key component widely used in various types of heavy-duty vehicles (trucks, trailers, passenger cars, military vehicles, etc.) to seal and transmit pressure brakes in braking systems and air brakes. Increase the pressure of the air chamber through the displacement of the rubber diaphragm to open the brake pads and hold the wheel tightly to achieve the braking effect. It is a rubber product that is related to the crash of the machine and is called a safety component. As people's requirements for high speed, comfort and reliability (safety) of automobiles are getting higher and higher, higher requirements are put forward for the rubber diaphragm, one of the key components of the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/06C08K3/22C08K5/09C08K3/04C08K5/11C08K5/378C08K5/47C08K3/06C08K5/43C08K5/3437C08K5/18C08J5/18
CPCC08J5/18C08J2307/00C08J2409/06C08K3/22C08K2003/2296C08K2201/014C08K5/09C08K3/04C08K5/11C08K5/378C08K5/47C08K3/06C08K5/43C08K5/3437C08K5/18
Inventor 柳青山
Owner NINGGUO HAI TIAN LI IND DEV