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

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

Active Publication Date: 2014-07-02
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 method for preparing a rubber material for preparing a high temperature resistant automobile cooling hose of the present invention includes the following steps:

[0026] (1) Cool the internal mixer with water, put the rubber raw materials, reinforcing fillers, plasticizers, activators, antioxidants and accelerators into the internal mixer for banburying, and control the rubber temperature below 160℃. Debinding, discharging and cooling on the open mixer to obtain masterbatch;

[0027] (2) Put the masterbatch into the internal mixer, uniformly add the vulcanizing agent for mixing, control the rubber temperature below 100°C to discharge the rubber, discharge it on the open rubber mixer, cool it and leave it to mature to obtain the vehicle for manufacturing High temperature resistant rubber materials used in rubber products such as coolant system hoses.

[0028] In the present invention, the rubber material contains the following components in weight percentage: rubber raw ma...

Embodiment 1

[0033] Rubber raw material: EPDM 41.32%;

[0034] Reinforcing fillers: fast pressing furnace black 18.60%, non-polluting high fixed extension semi-reinforcing furnace black 12.40%, silicon powder 10.33%;

[0035] Plasticizer: paraffin oil 11.98%;

[0036] Active agent: magnesium oxide 1.65%;

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

[0038] Accelerator: triallyl isocyanurate 1.03%;

[0039] Vulcanizing agent: Dicumyl peroxide 1.45%;

[0040] It includes the following steps:

[0041] (1) The internal mixer is cooled with water, the temperature of the internal mixer working room is controlled to be greater than 100℃, the speed: 32 rpm, and the rubber raw materials and reinforcing fillers, plasticizers, activators, and antioxidants in the formula 、The accelerator is put into the internal mixer, the internal mixer takes 5.5 minutes, the rubber temperature is controlled below 160℃ to discharge the rubber, and then the flakes ...

Embodiment 2

[0048] Rubber raw material: EPDM 40.82%;

[0049] Reinforcing filler: fast pressing furnace black 18.59%, non-polluting high fixed extension semi-reinforcing furnace black 12.53%, silicon powder 10.50%;

[0050] Plasticizer: paraffin oil 12.16%;

[0051] Active agent: magnesium oxide 1.66%;

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

[0053] Accelerator: triallyl isocyanurate 1.02%;

[0054] Curing agent: Dicumyl peroxide 1.42%;

[0055] It includes the following steps:

[0056] (1) The internal mixer is cooled with water, the temperature of the internal mixer is controlled to be greater than 100°C, and the speed is 32 revolutions per minute to promote the rubber raw materials, reinforcing fillers, plasticizers, activators, and antioxidants in the formula Put the agent into the internal mixer, the internal mixer will take 5 minutes, and the rubber temperature should be controlled below 160℃ to discharge the rubber, then th...

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

Claims

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Application Information

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Patent Type & Authority Patents(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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