A kind of high fluidity and low luster styrene-based thermoplastic elastomer material and preparation method thereof

A thermoplastic elastomer and styrene-based technology, which is applied in the field of high-fluidity and low-gloss styrene-based thermoplastic elastomer materials and their preparation, can solve problems such as high gloss and unbalanced gloss and fluidity of materials, and achieve Effects of low gloss, low compression set, and low environmental hazard

Active Publication Date: 2022-04-22
NINGBO TAIYONG AUTOMOTIVE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, replacing TPV with TPS on the static seals of automobiles brings high gloss or the inability to balance the gloss and fluidity of the material is a technical difficulty that needs to be solved at present.

Method used

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  • A kind of high fluidity and low luster styrene-based thermoplastic elastomer material and preparation method thereof
  • A kind of high fluidity and low luster styrene-based thermoplastic elastomer material and preparation method thereof
  • A kind of high fluidity and low luster styrene-based thermoplastic elastomer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0071] Examples 1-5 provide high-flow and low-gloss styrene-based thermoplastic elastomer materials, and the components and mass percentages of the raw materials are shown in Table 1. The PP resin I used in Examples 1-5 is block copolymerized PP resin 3500, and the melt mass flow rate is 50g / 10min under the test conditions of 230°C and 2.16KG, which can provide higher fluidity of the material; the SEBS used is TSRC's ultra-high molecular weight SEBS6159 has the characteristics of strong oil-locking ability, low gloss, and poor fluidity; the filler oil used is Hansheng Baiyou 1535, and its viscosity is 60mm 2 / s, the flash point is 240°C; the filler used is talcum powder 888 from Heshan Chemical Industry, with a particle size of 2500 mesh; the antioxidant is Beijing Jiyi Chemical’s antioxidant 1010 and antioxidant 168; the light stabilizer is Cytec Chemical 5411 and 770; the release agent is Dow Corning silicone masterbatch MB50-002; the melt mass flow rate of PP resin II in Ex...

Embodiment 6

[0075] The difference between the styrene-based thermoplastic elastomer material in Example 6 and Example 3 is that PP resin I is replaced by random copolymerized PP resin BX3920, and the melt mass flow rate is 100g / 10min, the types, contents and preparation methods of other raw materials were consistent with Example 3.

Embodiment 7

[0077] The difference between the styrene-based thermoplastic elastomer material in Example 7 and Example 4 is that PP resin I is replaced by random copolymerized PP resin BX3920, and the types, contents and preparation methods of other raw materials are consistent with Example 4.

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Abstract

The invention belongs to the technical field of polymer material modification and processing, and in particular relates to a high-fluidity low-gloss styrene-based thermoplastic elastomer material and a preparation method thereof. The raw material of the present invention includes the following components in parts by weight: PP resin I: 5-20 parts, PP resin II: 0.5-2 parts, styrene block copolymer: 20-40 parts, extender oil: 20-50 parts , filler: 10-20 parts, antioxidant: 0.3-0.6 parts, light stabilizer: 0.6-1 parts, compatibilizer: 2-5 parts, release agent: 0.5-2 parts, masterbatch: 3- 6 servings. The present invention selects block copolymerized PP resin with high fluidity and low gloss as the main material, cooperates with ultra-high molecular weight linear SEBS, and adds ultra-high fluidity PP resin to improve the fluidity of the material. Firstly, SEBS and paraffin oil are mixed in a certain proportion Pre-filled with oil, then mixed, extruded and granulated, so that the prepared styrene-based thermoplastic elastomer material has the advantages of high fluidity and low gloss, which not only meets the technical requirements of injection molding, but also meets the requirements of interior and exterior parts of automobiles. product appearance requirements.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification and processing, and in particular relates to a high-fluidity low-gloss styrene-based thermoplastic elastomer material and a preparation method thereof. Background technique [0002] Thermoplastic elastomers combine the physical and mechanical properties of vulcanized rubber, such as high elasticity, aging resistance, and oil resistance, with the excellent processing properties of plastics. As new synthetic materials, they are widely used in industrial fields such as auto parts. At present, polyvinyl chloride (PVC) and thermoplastic vulcanizate (TPV) materials are mostly used in automotive sealing systems. These two materials have good elasticity and can play a role in sealing, shock absorption, waterproof, dustproof, sound insulation, and decoration in automotive sealing systems. And so on. PVC is cheap, has a mature manufacturing process, and is widely used, but its heat re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L91/06C08L53/00C08L23/12C08L53/02C08L83/04C08L23/14C08K3/34C08K5/134C08K5/526C08K3/26C08K13/02
CPCC08L91/06C08L53/025C08L2205/035C08L2207/04C08K2003/265C08L53/00C08L23/12C08L83/04C08L23/14C08K3/34C08K5/1345C08K5/526C08K3/26C08K13/02
Inventor 张德权李文斌
Owner NINGBO TAIYONG AUTOMOTIVE PARTS
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