Preparation method of anti-aging tire rubber powder-based PP thermoplastic elastomer automobile part

A technology for thermoplastic elastomers and auto parts, applied in the field of material manufacturing, to achieve excellent ozone aging resistance, large market space, and significant economic and social benefits

Inactive Publication Date: 2021-11-02
XUZHOU COLLEGE OF INDAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the above-mentioned prior art, reduce the cost of thermoplastic elastomer (TPE), improve performance, and promote its popularization and application, the invention provides a kind of preparation method of aging-resistant tire rubber powder-based PP thermoplastic elastomer auto parts, which It not only has the processing characteristics of plastics, but also has the excellent performance of elastomers and is low in cost. The tire rubber powder used is made from waste tires. The tire rubber powder is easier to disperse evenly than block raw rubber and PP, and the performance has been greatly improved. , the tire rubber powder is directly used to prepare TPE, which will avoid serious pollution problems in the preparation of reclaimed rubber

Method used

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  • Preparation method of anti-aging tire rubber powder-based PP thermoplastic elastomer automobile part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Various raw materials and their mass parts are: PP, 15 parts; EPDM, 10 parts; BR, 10 parts; 60 mesh and below tire rubber powder, 65 parts; regeneration activator 510, 2.0 parts; pine tar oil, 15.0 parts ; Compatibilizer BIBP, 1.1 parts; Vulcanizing agent S 8 , 0.3 parts; zinc oxide ZnO, 5.0 parts; stearic acid SA, 0.3 parts; antioxidant 1010, 0.3 parts;

[0021] Its preparation method, carry out as follows:

[0022] Step 1) Activate 19.5Kg of 60-mesh tire rubber powder at 200°C×30min; mix and masticate 3.0Kg, EPDM, 3.0Kg, and BR at room temperature for 5 minutes to obtain plasticized rubber, and then make the activated 60-mesh Tire rubber powder and 4.5Kg of powdered PP are uniformly dispersed in a kneader to obtain a compound, and the compound is added to the plasticized rubber at 160+5°C and kneaded evenly to obtain a compounded plastic.

[0023] Add 0.09Kg, sulfur S 8 , 0.33Kg, BIBP, 1.5Kg, zinc oxide ZnO, 0.09Kg, stearic acid SA, 0.09Kg, antioxidant 1010, unifor...

Embodiment 2

[0026] Various raw materials and their mass parts are: PP, 15 parts, EPDM, 15 parts, BR, 10 parts, 60 mesh and below tire rubber powder, 60 parts, regeneration activator 510, 2.0 parts, pine tar oil, 15.0 parts , compatibilizer BIBP, 1.1 parts, HDPE-g-MAH, 8.0 parts, vulcanizing agent S 8 , 0.3 parts, zinc oxide ZnO, 5.0 parts, stearic acid SA, 0.3 parts, antioxidant 1010, 0.3 parts.

[0027] Its preparation method, carry out as follows:

[0028] Step 1) Activate 18.0Kg of 60-mesh tire rubber powder under the condition of 200°C×30min. At room temperature, 4.5Kg, EPDM, 3.0Kg, and BR were masticated for 5 minutes to obtain masticated rubber, and then the 60-mesh tire rubber powder and 4.5Kg powdered PP were uniformly dispersed in a kneader to obtain a mixture. Add the mixture to the plasticized rubber at ℃, and knead evenly to obtain the kneaded plastic.

[0029] Add 0.09Kg, sulfur S 8 , 0.33Kg, BIBP, 2.4Kg, HDPE-g-MAH, 1.5Kg, zinc oxide ZnO, 0.09Kg, stearic acid SA, 0.09Kg,...

Embodiment 3

[0032] Various raw materials and their mass parts are: PP, 15 parts, EPDM, 1515 parts, BR, 10 parts, 60 mesh and below tire rubber powder, 65 parts, regeneration activator 510, 2.0 parts, pine tar oil, 15.0 parts , compatibilizer BIBP, 1.1 parts, PAPI, 0.7 parts, vulcanizing agent S 8 , 0.3 parts, zinc oxide ZnO, 5.0 parts, stearic acid SA, 0.3 parts, antioxidant 1010, 0.3 parts.

[0033] Its preparation method, carry out as follows:

[0034] Step 1) Activate 19.5Kg of 60-mesh tire rubber powder under the condition of 200°C×30min. At room temperature, masticate 4.5Kg EPDM and 3.0Kg BR for 5 minutes to obtain masticated rubber, and then disperse the activated 60-mesh tire rubber powder and 4.5Kg powder PP in a kneader to obtain a mixture. Add the mixture to the plasticized rubber, and knead evenly to obtain the kneaded plastic.

[0035] Add 0.09Kg of sulfur S to the kneading plastic in a twin-screw extruder at 180°C 8 , 0.33Kg BIBP, 0.21Kg PAPI, zinc oxide ZnO, 0.09Kg stear...

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Abstract

The invention discloses a preparation method of an anti-aging tire rubber powder-based PP thermoplastic elastomer automobile part. The method comprises the steps: selecting tire rubber powder of 60 meshes or below, PP, EPDM, BR, different compatilizer systems and stearic acid SA; uniformly dispersing the tire rubber powder and powdery PP in a kneading machine, adding the mixture into EPDM/BR plasticated rubber at 160 + 5 DEG C, and uniformly mixing to obtain the mixed plastic; and adding various compounding agents into the mixed plastic, and carrying out cross-linking reaction by virtue of a dynamic cross-linking system and strong mechanical shear stress to obtain the anti-aging tire rubber powder-based PP thermoplastic elastomer automobile part. Then performance detection is carried out to obtain the tensile strength, the elongation at break, the compression set, the water resistance, the thermo-oxidative aging hardness change, the tensile strength change rate and the elongation at break change rate; and when the samples are tested and free of cracks under the ozone aging resistance condition, it is shown that the ozone aging resistance is excellent.

Description

technical field [0001] The invention relates to a preparation method of anti-aging tire rubber powder-based PP thermoplastic elastomer auto parts, belonging to the field of material manufacturing. Background technique [0002] The following common problems exist in the production of rubber powder-based thermoplastic elastomer (RPTPE): poor mechanical properties; poor performance stability; high price; RPTPE has a strong smell and is not suitable for making high-end products. [0003] The thermoplastic elastomer (TPE) currently on the market is expensive, and its performance cannot meet the requirements of many downstream users. Contents of the invention [0004] In order to overcome the deficiencies of the above-mentioned prior art, reduce the cost of thermoplastic elastomer (TPE), improve performance, and promote its popularization and application, the invention provides a kind of preparation method of aging-resistant tire rubber powder-based PP thermoplastic elastomer au...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L19/00C08L23/12C08L23/06C08L9/00C08L95/00C08K3/06C08K3/22C08K5/09C08K5/134
CPCC08L19/003C08L2207/04C08L2201/08C08K2003/2296C08L23/12C08L23/06C08L9/00C08L95/00C08K3/06C08K3/22C08K5/09C08K5/1345C08L17/00C08L2207/20C08K5/14C08L23/10C08L23/16C08L51/06C08L61/20
Inventor 王艳秋祝木伟刘太闯翁国文柳峰臧亚南靳玲姚亮张小萍李培培
Owner XUZHOU COLLEGE OF INDAL TECH
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