Thermoplastic elastomer used in automobile engine, having temperature resistance grade of 150 DEG C and having oxygen resistance and oil resistance and preparation method thereof

A thermoplastic elastomer, automotive engine technology, applied in the field of thermoplastic elastomer and its preparation, can solve the problems of intolerance to 150 ° C, poor ACM processing performance, poor storage stability, etc.

Inactive Publication Date: 2019-01-15
GUANGDONG RES INSTITITUTE OF PETROCHEM & FINE CHEM ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Acrylic rubber (ACM) is a kind of special rubber with saturated main chain, and the side groups are polar ester groups, so it has excellent oil resistance and high temperature resistance, and can be used for a long time under harsh conditions, but ACM has processing properties

Method used

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  • Thermoplastic elastomer used in automobile engine, having temperature resistance grade of 150 DEG C and having oxygen resistance and oil resistance and preparation method thereof
  • Thermoplastic elastomer used in automobile engine, having temperature resistance grade of 150 DEG C and having oxygen resistance and oil resistance and preparation method thereof
  • Thermoplastic elastomer used in automobile engine, having temperature resistance grade of 150 DEG C and having oxygen resistance and oil resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] The method for preparing the thermoplastic elastomer used in the engine of a temperature-resistant 150°C oxygen-resistant and oil-resistant automobile is characterized in that it comprises the following steps:

[0035] 1) Preparation of surface-modified supported antioxidant: first dissolve the antioxidant in an organic solvent to obtain the antioxidant solution, then add the halloysite nanotubes to the antioxidant solution, stir evenly, and then vacuum and vent into the atmosphere Recycle treatment, washing, and then disperse the halloysite nanotubes loaded with antioxidant into water, add silane coupling agent and stir evenly, separate the solid product, and dry to obtain the surface modified supported antioxidant;

[0036] 2) Mixing: Weigh the raw materials according to the above composition, first put the acrylic rubber, surface modification supported antioxidants, and processing aids into the internal mixer for mixing, then add carbon black and softening plasticizer to c...

Example Embodiment

[0051] Example 1:

[0052] Embodiment 1 The preparation method of thermoplastic elastomer used in automobile engine with temperature resistance of 150°C, oxygen resistance and oil resistance includes:

[0053] 1) Preparation of silane-modified supported antioxidant: 30.08g antioxidant MC445 was dissolved in 1L acetone to prepare an antioxidant solution with a concentration of 30g / L. Add 60.12g of HNT to the antioxidant solution, stir and disperse evenly, let the air pass through the negative pressure for half an hour, repeat 3 times; filter with suction, and rinse with 75% ethanol solution 3 times to remove the antioxidant MC445 attached to the surface. Disperse the obtained solid in 100 mL of distilled water again, add 3.05 g of KH570, react at 60° C. for 30 min, centrifuge, dry, and grind for later use.

[0054] 2) Mixing: 52.04g acrylate rubber AR840, 5.87g loaded antioxidant, 0.52g stearic acid, 0.38g VANFRE VAM and 0.43g 935P were weighed separately and put into the internal mi...

Example Embodiment

[0056] Example 2:

[0057] Embodiment 2 The preparation method of thermoplastic elastomer used in automobile engine with temperature resistance of 150°C, oxygen resistance and oil resistance includes:

[0058] 1) Preparation of silane-modified supported antioxidant: 30.08g antioxidant MC445 was dissolved in 1L acetone to prepare an antioxidant solution with a concentration of 30g / L. Add 60.12g of HNT to the antioxidant solution, stir and disperse evenly, let the air pass through the negative pressure for half an hour, repeat 3 times; filter with suction, and rinse with 75% ethanol solution 3 times to remove the antioxidant MC445 attached to the surface. Disperse the obtained solid in 100 mL of distilled water again, add 3.05 g of KH570, react at 60° C. for 30 min, centrifuge, dry, and grind for later use.

[0059] 2) Mixing: 60.24g acrylic rubber AR51, 17.35g loaded antioxidant, 0.60g stearic acid, 0.46g VANFRE VAM and 0.52g 935P are respectively weighed and put into an internal mix...

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Abstract

The invention discloses a thermoplastic elastomer used in an automobile engine, having temperature resistance grade of 150 DEG C and having oxygen resistance and oil resistance and a preparation method thereof. The thermoplastic elastomer is composed of the following raw materials in parts by mass: 50-75 parts of acrylate rubber, 25-50 parts of polyamide, 10-20 parts of carbon black, 2-4 parts ofa softening plasticizer, 5-30 parts of a surface modified loaded anti-aging agent, 1-2 parts of a processing aid and 2-4 parts of a vulcanizing agent. The invention also discloses the preparation method of the thermoplastic elastomer used in the automobile engine, having temperature resistance grade of 150 DEG C and having oxygen resistance and oil resistance. A polyacrylate rubber/polyamide TPV material is prepared by a dynamic vulcanization method; the problem that a traditional anti-aging agent is easy to extract is solved by using the loaded type anti-aging agent in the material; meanwhile, the anti-aging agent is slowly released, and the TPV material which can be used in the automobile engine and has long-term high temperature resistance, oil resistance and thermo-oxidative aging resistance is obtained.

Description

technical field [0001] The invention relates to a 150°C temperature-resistant, oxygen-resistant and oil-resistant thermoplastic elastomer used in automobile engines and a preparation method thereof. Background technique [0002] With the development of automobile technology, the automobile manufacturing industry has put forward higher and higher requirements for the heat resistance and oil resistance of rubber products in the engine. The power system and axle components (especially the exhaust side of the engine) require the use temperature of rubber products to reach 135°C, the temperature in some engine compartments even requires rubber sealing products to work at 170°C for a long time. To extend the life of automotive emissions systems and powertrains, synthetic fluids (such as certain engine oils and ATF oils) are often used instead of petroleum-based oils. Therefore, more stringent requirements are put forward for the high temperature resistance and oil resistance of r...

Claims

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Application Information

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IPC IPC(8): C08L33/08C08L77/00C08K13/06C08K9/12C08K3/04C08K5/09C08K5/18
CPCC08L33/08C08L2201/08C08L2207/04C08L77/00C08K13/06C08K9/12C08K3/04C08K5/09C08K5/18
Inventor 路芳麦裕良刘洋王全勇江川霞
Owner GUANGDONG RES INSTITITUTE OF PETROCHEM & FINE CHEM ENG
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