Preparation method of rubber material for preparing high temperature-resistant automobile cooling hose

A kind of rubber material, automobile cooling technology, applied in the direction of hose, pipe, mechanical equipment, etc., can solve the problem of low temperature resistance, hardness change, elongation at break performance does not meet the requirements, it is difficult to meet the increasing requirements of rubber products, etc. question

Active Publication Date: 2012-09-19
上海天普汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As can be seen from the above-mentioned experimental results, the hardness change and the elongation at break performance of the automobile coolant system hose rubber products made of EPDM rubber do not meet the requirements; the automobile coolant system hose made by the prior art Rubber products have low high temperature resistance, which makes it difficult to meet the increasing requirements of the automotive industry for rubber products

Method used

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  • Preparation method of rubber material for preparing high temperature-resistant automobile cooling hose
  • Preparation method of rubber material for preparing high temperature-resistant automobile cooling hose
  • Preparation method of rubber material for preparing high temperature-resistant automobile cooling hose

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preparation example Construction

[0025] The preparation method for the rubber material that is used to prepare high-temperature-resistant automobile cooling hose of the present invention, it comprises the steps:

[0026] (1) Cool the internal mixer with water, put rubber raw materials, reinforcing fillers, plasticizers, active agents, anti-aging agents and accelerators into the internal mixer for internal mixing, and control the rubber temperature below 160°C for internal mixing. Debinding, sheeting and cooling on an open rubber mixer to obtain masterbatch;

[0027] (2) Put the masterbatch into the internal mixer, add vulcanizing agent evenly for mixing, control the temperature of the glue below 100°C to discharge the glue, and make strips on the open rubber mixer, cool and stand for aging to obtain the car for manufacturing High temperature resistant rubber material used for rubber products such as coolant system hoses.

[0028] In the present invention, the rubber material comprises the following component...

Embodiment 1

[0033] Rubber raw material: EPDM rubber 41.32%;

[0034] Reinforcing filler: 18.60% of quick-pressed furnace black, 12.40% of non-polluting high-definition semi-reinforcing furnace black, and 10.33% of silicon powder;

[0035] Plasticizer: paraffin oil 11.98%;

[0036] Active agent: magnesium oxide 1.65%;

[0037] Antiaging agent: 0.62% of 2,2,4-trimethyl-1,2-dihydroquinoline polymer, 0.62% of 2-mercaptobenzimidazole;

[0038] Accelerator: triallyl isocyanurate 1.03%;

[0039] Vulcanizing agent: dicumyl peroxide 1.45%;

[0040] Specifically include the following steps:

[0041] (1) Cool the internal mixer with water, control the temperature of the internal mixer studio to be greater than 100°C, and the rotation speed: 32 rpm, and mix the rubber raw materials, reinforcing fillers, plasticizers, active agents, and anti-aging agents in the formula 1. The accelerator is put into the internal mixer, and the internal mixing takes 5.5 minutes. The glue temperature is controlled ...

Embodiment 2

[0048] Rubber raw material: EPDM rubber 40.82%;

[0049] Reinforcing filler: 18.59% of quick-pressed furnace black, 12.53% of non-polluting high-definition semi-reinforcing furnace black, and 10.50% of silicon powder;

[0050] Plasticizer: paraffin oil 12.16%;

[0051] Active agent: magnesium oxide 1.66%;

[0052] Antiaging agent: 0.65% of 2,2,4-trimethyl-1,2-dihydroquinoline polymer, 0.65% of 2-mercaptobenzimidazole;

[0053] Accelerator: triallyl isocyanurate 1.02%;

[0054] Vulcanizing agent: dicumyl peroxide 1.42%;

[0055] Specifically include the following steps:

[0056] (1) Cool the internal mixer with water, control the temperature of the internal mixer working room to be greater than 100°C, and the speed to be 32 rpm, and promote the rubber raw materials, reinforcing fillers, plasticizers, active agents, and anti-aging agents in the formula. Put the agent into the internal mixer, the internal mixing takes 5 minutes, the glue temperature is controlled below 160°C...

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Abstract

The invention provides a preparation method of rubber material for preparing a high temperature-resistant automobile cooling hose, which comprises the following steps of: (1) cooling an internal mixer with water, putting rubber raw material, reinforcing filler, plasticizer, active agent, anti-aging agent and accelerator into the internal mixer for banburying, discharging rubber when the temperature of the rubber is controlled to be less than 160 DEG C, and discharging sheets and cooling on an open type rubber mixing machine, to obtain master batch; and (2) putting the master batch into the internal mixer, evenly adding vulcanizer for mixing, discharging the rubber when the temperature of the rubber is controlled to be less than 100 DEG C, and discharging sheets, cooling and curing in a sewing way on the open type rubber mixing machine, to obtain the high temperature-resistant rubber material for manufacturing the rubber products such as the automobile cooling liquid system tube; and compared with the prior art, the preparation method can prepare the high temperature-resistant rubber material, due to the detection of various mechanical strength and physical and chemical indexes, the manufactured rubber products such as the automatable cooling liquid system tube can accord with the standards of the ASTM (American society for testing material) D2240, the ASTM D412 and the ASTM D573, and meet the ELV (extra low voltage) instruction requirement; and therefore, the high temperature resistance can be improved.

Description

technical field [0001] The invention relates to a method for preparing a rubber material, in particular to a method for preparing a rubber material used in the hose of an automobile coolant system for preparing a high-temperature-resistant automobile cooling hose. Background technique [0002] Rubber products such as automotive coolant system hoses produced by existing preparation methods have relatively low high temperature resistance (160°C) performance and cannot meet the requirements. [0003] In the prior art, the test data of rubber products of automobile coolant system hoses made of rubber materials (EPDM rubber) are as follows: [0004] [0005] As can be seen from the above-mentioned experimental results, the hardness change and the elongation at break performance of the automobile coolant system hose rubber products made of EPDM rubber do not meet the requirements; the automobile coolant system hose made by the prior art Rubber products have low high temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/04C08K3/16C08K5/14C08J3/22F16L11/04
Inventor 尤建义
Owner 上海天普汽车零部件有限公司
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