Dynamically vulcanized styrene thermoplastic elastomer and preparation method thereof

A thermoplastic elastomer, styrene-based technology, applied in the field of dynamically vulcanized styrene-based thermoplastic elastomer and its preparation, can solve the problems of restricting further use, mechanical properties, resistance to compression set, wear resistance, odor residue, etc. , to achieve the effects of safe use, compression set resistance, improved wear resistance, and excellent comprehensive performance

Inactive Publication Date: 2010-09-29
SHANGHAI SUNNY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These rubbers still have some deficiencies in terms of mechanical properties, compression set resistance, abrasion resistance, odor residue, etc., which limit their further use to a certain extent.

Method used

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  • Dynamically vulcanized styrene thermoplastic elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A preparation method of a dynamically vulcanized styrene-based thermoplastic elastomer, the method comprising the following steps:

[0043] (1) according to the following components of weight content (wt%):

[0044] SEBS1651 35

[0045] 100# white oil 39

[0046] PPY600 19

[0047] Talc powder (1500 mesh) 6.7

[0048] Antioxidant 1010 0.14

[0049] Cross-linking agent 0.1

[0050] Auxiliary cross-linking agent TAIC 0.06;

[0051] (2) Add each component into the high-speed mixer, mix at high speed for 1-3 minutes, and the spindle speed of the mixer is 700r / min;

[0052] (3) Put the well-mixed mixture into a twin-screw extruder with an aspect ratio greater than 36:1 to carry out dynamic vulcanization reaction in a molten state, extrude, and granulate. The processing temperature is 190-230°C. The rotational speed of the twin-screw extruder was 300 rpm to obtain a dynamically vulcanized styrene thermoplastic elastomer.

Embodiment 2

[0054] A preparation method of a dynamically vulcanized styrene-based thermoplastic elastomer, the method comprising the following steps:

[0055] (1) according to the following components of weight content (wt%):

[0056] SEBS1651 34.8

[0057]100# white oil 39

[0058] PPM800E 19.9

[0059] Talc powder (1500 mesh) 6

[0060] Antioxidant 1010 0.14

[0061] Cross-linking agent 0.1

[0062] Auxiliary cross-linking agent TAIC 0.06;

[0063] Steps (2) to (3) are the same as in Example 1.

Embodiment 3

[0065] A preparation method of a dynamically vulcanized styrene-based thermoplastic elastomer, the method comprising the following steps:

[0066] (1) according to the following components of weight content (wt%):

[0067] SEBS1654 34.8

[0068] 100# white oil 39

[0069] PPY600 19.9

[0070] Talc powder (1500 mesh) 6

[0071] Antioxidant 1010 0.14

[0072] Cross-linking agent 0.1

[0073] Auxiliary cross-linking agent TAIC 0.06

[0074] Steps (2) to (3) are the same as in Example 1.

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Abstract

The invention relates to a dynamically vulcanized styrene thermoplastic elastomer and a preparation method thereof. The elastomer consists of the following components in percentage by weight: 20 to 70 percent of styrene segmented copolymer, 10 to 60 percent of rubber processing oil, 5 to 60 percent of polyolefin, 0 to 35 percent of inorganic mineral filler, 0.1 to 0.3 percent of antioxidant, 0.1 to 1 percent of crosslinking agent and 0.05 to 0.5 percent of auxiliary crosslinking agent. Compared with the prior art, the preparation technique of the invention is reasonable, the prepared elastomer has excellent comprehensive properties, the mechanical property, compression set resistance, abrasive resistance and the like of the elastomer are remarkably enhanced, meanwhile, the elastomer almost does not have residual smell, use is safe and environment-friendly, and the elastomer can be widely applied to the interior and the exterior decorations and other parts of automobiles and other more fields.

Description

technical field [0001] The invention relates to a styrene thermoplastic elastomer, in particular to a dynamically vulcanized styrene thermoplastic elastomer and a preparation method thereof. Background technique [0002] Thermoplastic elastomers have the soft elasticity of rubber at room temperature, and can be processed and recycled like thermoplastics at temperatures higher than their melting point or softening point, so they have a wide range of applications. There are many types of thermoplastic elastomers, among which styrene-based thermoplastic elastomers (or styrene block copolymers) are the most widely used type of elastomers, which use glassy polystyrene as the hard segment and rubber Polybutadiene or isoprene in the state is a block copolymer composed of soft segments, because of its excellent resilience and surface feel, excellent weather resistance, ozone resistance, cold resistance, recyclability and A series of advantages such as flexibility and adjustability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/00C08L23/12C08L23/14C08K13/02C08K5/01C08L91/06C08J3/24
Inventor 廖志荣张平
Owner SHANGHAI SUNNY
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