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Blow-molding-grade TPV (thermoplastic vulcanizate) material for dust shields and preparation method thereof

A dust cover, blow molding technology, applied in the field of TPV materials, can solve problems such as difficulty in blow molding

Inactive Publication Date: 2016-06-15
安徽韧达高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for general TPV materials, blow molding is still relatively difficult, which requires that the TPV material itself also needs to have good melt strength, so that the parison is stable and conducive to molding

Method used

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  • Blow-molding-grade TPV (thermoplastic vulcanizate) material for dust shields and preparation method thereof
  • Blow-molding-grade TPV (thermoplastic vulcanizate) material for dust shields and preparation method thereof
  • Blow-molding-grade TPV (thermoplastic vulcanizate) material for dust shields and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of TPV material for blow molding grade dust cover, its raw material comprises by weight:

[0022]

[0023]Wherein, the method for preparing the flow modifier includes: adding 15 parts of silane coupling agent and 20 parts of nano-calcium carbonate in a mixed solution of isopropanol and water at a volume ratio of 6:1 by weight, and heating up to 100°C , stirred for 4h, dried at 80°C until the solvent content was 40wt%, and then dried at 140°C until the solvent content was 0wt%, after grinding, the grafted nano-calcium carbonate of silane coupling agent was obtained; the silane coupling agent Add grafted nano-calcium carbonate to water, sonicate for 1 hour, add 0.1 part of sodium bisulfite and 0.6 part of potassium persulfate, raise the temperature to 40 °C under the condition of nitrogen protection, keep stirring for 1 hour, then add 5 parts of styrene and 30 parts of acrylamide, heat up to 60°C, heat and stir for 4 hours, then add excess ethanol, stir, filter ...

Embodiment 2

[0027] A kind of TPV material for blow molding grade dust cover, its raw material comprises by weight:

[0028]

[0029]

[0030] Wherein, the method for preparing the flow modifier includes: adding 10 parts of silane coupling agent and 30 parts of nano-calcium carbonate to a mixed solution of isopropanol and water at a volume ratio of 8:1 by weight, and heating up to 80°C , stirred for 6h, dried at 60°C until the solvent content was 60wt%, and then dried at 120°C until the solvent content was 3wt%, after grinding, the grafted nano-calcium carbonate of silane coupling agent was obtained; the silane coupling agent Add grafted nano-calcium carbonate to water, sonicate for 0.5h, add 0.3 parts of sodium bisulfite and 0.4 parts of potassium persulfate, raise the temperature to 60°C under the condition of nitrogen protection, keep stirring for 0.5 hours, then add 15 parts of styrene and 15 parts of acrylamide, heated up to 80°C, kept stirring for 2 hours, then added excess eth...

Embodiment 3

[0034] A kind of TPV material for blow molding grade dust cover, its raw material comprises by weight:

[0035]

[0036] Wherein, the method for preparing the flow modifier includes: adding 12 parts of silane coupling agent and 25 parts of nano-calcium carbonate in a mixed solution of isopropanol and water at a volume ratio of 7:1 by weight, and heating up to 90°C , stirred for 5h, dried at 70°C until the solvent content was 50wt%, and then dried at 130°C until the solvent content was 2wt%, after grinding, the grafted nano-calcium carbonate of the silane coupling agent was obtained; the silane coupling agent Add grafted nano-calcium carbonate into water, sonicate for 0.7h, add 0.2 parts of sodium bisulfite and 0.5 parts of potassium persulfate, raise the temperature to 50°C under nitrogen protection, keep stirring for 0.7 hours, then add 10 parts of styrene and 22 parts of acrylamide, heat up to 70°C, heat and stir for 3 hours, then add excess ethanol, stir, filter with suc...

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Abstract

The invention discloses a blow-molding-grade TPV (thermoplastic vulcanizate) material for dust shields. The blow-molding-grade TPV material for dust shields is prepared from the following raw materials in parts by weight: 40-60 parts of EPDM (ethylene-propylene-diene monomer), 10-30 parts of polypropylene, 5-10 parts of linear low density polyethylene, 5-15 parts of ethylene-octylene copolymer, 5-15 parts of compatibilizer, 5-10 parts of flow modifier, 20-30 parts of plasticizer, 1-3 parts of vulcanizing agent, 1-3 parts of antioxidant, 1-3 parts of light stabilizer, 1-3 parts of internal lubricant and 1-3 parts of processing aid. The TPV material has the advantages of favorable melt strength, excellent blow molding processability, favorable mechanical properties, excellent processability and favorable appearance.

Description

technical field [0001] The invention relates to the technical field of TPV materials, in particular to a TPV material for a blow molding grade dust cover and a preparation method thereof. Background technique [0002] TPV is the abbreviation of Thermoplastic Vulcanizate. The Chinese name is thermoplastic EPDM dynamic vulcanized elastomer or thermoplastic EPDM dynamic vulcanized rubber. It is a polymer composed of highly vulcanized EPDM particles dispersed in continuous polypropylene PP phase. Elastomer material. The physical properties and functions of TPV at room temperature are similar to those of thermosetting rubber. At high temperatures, they behave like thermoplastics, and can be processed quickly, economically and conveniently. TPV thermoplastic EPDM dynamically vulcanized elastomer The vulcanized rubber material is dynamically vulcanized so that EPDM is dispersed in the polypropylene PP plastic matrix with particles less than 2 microns in size, and the characteristi...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L23/12C08L23/14C08L23/08C08K13/06C08K9/04C08K9/06C08K3/26C08K5/14B29C47/92B29C48/92
CPCC08L23/16B29C48/92B29C2948/9259B29C2948/92704C08K2201/011C08L2201/08C08L2205/025C08L2205/035C08L2205/08C08L2207/062C08L23/12C08L23/14C08L23/0815C08K13/06C08K9/08C08K9/06C08K2003/265C08K5/14
Inventor 王强
Owner 安徽韧达高分子材料有限公司
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