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TPO thermoplastic elastomer material and preparation method thereof

A thermoplastic elastomer and granule technology, which is applied in the field of processing aids for plastic products, can solve the problems of poor waterproof performance, low toughness, and low rigidity, and achieve strong waterproof performance, excellent toughness, and low cost.

Inactive Publication Date: 2017-08-29
江苏超喜加塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention discloses a TPO thermoplastic elastomer material and a preparation method thereof, which are used to solve the problems of low toughness, low rigidity and poor waterproof performance of thermoplastic elastomer materials in the traditional technology

Method used

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  • TPO thermoplastic elastomer material and preparation method thereof
  • TPO thermoplastic elastomer material and preparation method thereof
  • TPO thermoplastic elastomer material and preparation method thereof

Examples

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preparation example Construction

[0018] A kind of TPO thermoplastic elastomer material and preparation method thereof, comprises the steps:

[0019] 1) Physical treatment: In terms of mass fraction, mix 70g-80g of TPO, 4g-6g of PP, 8g-12g of POE, and 8g-12g of EPDM, add it to an ultrasonic cleaner, and clean it ultrasonically for more than 2 hours at room temperature , placed in an oven after filtering, and dried at 70-80°C until the moisture on the surface of each component material disappears, and the dry mixture is obtained;

[0020] 2) Melt blending: Add the dry mixture and a certain amount of fusion agent into the 75L internal mixer, at a temperature of 180-190°C, the rotor speed is 35-70r / min, and the motor speed is controlled at 490-980r / min. Blending and banburying under the same conditions for 20 minutes to obtain the crude compound;

[0021] 3) Granulation molding: the crude compound is transported to the granulator through the conveyor, and at 185°C, the crude compound is cut into particles of dif...

Embodiment 1

[0026] Mix 70g of TPO, 4g of PP, 8g of POE, and 8g of EPDM, put them into an ultrasonic cleaner, and clean them ultrasonically for more than 2 hours at room temperature. After filtering, place them in an oven and dry them at 100-120°C After 4 hours, the dry mixture was obtained, and the dry mixture and a certain amount of fusion agent were added to a 75L internal mixer, and the temperature was 185°C, the rotor speed was 55r / min, and the motor speed was controlled at 750r / min. Refining for 20 minutes, the crude compound is obtained. The crude compound is transported to the granulator through the conveyor, and the crude compound is cut into particles of different particle sizes at 185 ° C. Finally, the particles are put into molds of different shapes. Prepare PP / POE / EPDM type TPO thermoplastic elastomer material.

Embodiment 2

[0028] Mix 70g of TPO, 5g of PP, 10g of POE, and 10g of EPDM, put them into an ultrasonic cleaner, and clean them ultrasonically for more than 2 hours at room temperature. After filtering, place them in an oven and dry them at 100-120°C. After 4 hours, the dry mixture was obtained, and the dry mixture and a certain amount of fusion agent were added to a 75L internal mixer, and the temperature was 185°C, the rotor speed was 55r / min, and the motor speed was controlled at 750r / min. Refining for 20 minutes, the crude compound is obtained. The crude compound is transported to the granulator through the conveyor, and the crude compound is cut into particles of different particle sizes at 185 ° C. Finally, the particles are put into molds of different shapes. Prepare PP / POE / EPDM type TPO thermoplastic elastomer material.

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Abstract

The invention discloses a TPO thermoplastic elastomer material and a preparation method thereof. The preparation method comprises the following steps: mixing a certain amount of TPO, PP, POE and EPDM, adding the mixture into an ultrasonic cleaning machine for cleaning, filtering the mixture, putting the mixture into a drying box for drying, adding the dried mixture and a certain amount of a fusion agent into an internal mixer for blending mixing, thus preparing a coarse compound, conveying the coarse compound into a granulator, cutting the coarse compound into particles with different particle sizes at 185 DEG C, feeding the particles into dies with different shapes, and finally preparing the PP / POE / EPDM type TPO thermoplastic elastomer material. The TPO thermoplastic elastomer material disclosed by the invention is high in softness and machinable property and relatively high in waterproofness; the elongation at break is up to 480.62 to 892.36 percent, and the tensile strength is up to 9.38 to 11.78 MPa; the toughness is greatly improved.

Description

technical field [0001] The invention relates to the field of processing aids for plastic products, in particular to a TPO thermoplastic elastomer material and a preparation method thereof. Background technique [0002] Auto parts such as dashboards, bumpers, wipers, and airbag covers are mostly made of thermoplastic resins such as TPO, PP, POE, and EPDM. Among them, TPO has a good balance between processing performance and mechanical properties, and is recyclable. , PP has excellent processing performance, high yield strength, tensile strength and elastic modulus, POE has excellent aging resistance, UV resistance, good mechanical properties and processing rheological properties, and the main molecular chain of EPDM is Saturated structure, with excellent aging resistance, ozone resistance, chemical medium resistance and other properties, is a very important type of product in synthetic rubber, and is currently one of the most widely used polymer waterproof materials. At pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/00C08L23/12C08L23/08C08L23/16
CPCC08L23/00C08L2201/08C08L2205/02C08L2205/035C08L23/12C08L23/0815C08L23/16
Inventor 沈琳烽
Owner 江苏超喜加塑料科技有限公司
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