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High-melt-strength high-bonding-property thermoplastic elastomer and preparation method thereof

A thermoplastic elastomer, high melt strength technology, applied in the field of thermoplastic elastomers, can solve the problems of low melt strength, easy shrinkage, poor mechanical strength and encapsulation adhesion, etc., to achieve high melt strength, not easy to shrink, Effect of Improving Extrusion Processability

Inactive Publication Date: 2017-09-01
泉州盈创新材料技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects in the prior art, provide a thermoplastic elastomer with high melt strength and high cohesiveness and its preparation method, and solve the problems of low melt strength, easy shrinkage, mechanical strength and wrapping of existing thermoplastic elastomers. The problem of poor adhesive adhesion

Method used

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  • High-melt-strength high-bonding-property thermoplastic elastomer and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] A thermoplastic elastomer with high melt strength and high adhesion, the basic formula and weight ratio are: 25 parts of styrene-isoprene-styrene block copolymer, 20 parts of random copolymerized polypropylene, polyether type 6 parts of thermoplastic polyurethane, 5 parts of hydroxyl-terminated dendritic polyamide ester, 3 parts of terpene-styrene resin, 2 parts of bicyclodiene petroleum resin, 14 parts of naphthenic oil, 3 parts of maleic anhydride grafted SEBS, antioxidant 2 doses.

[0024] The above-mentioned high-melt-strength high-bonding thermoplastic elastomer has the following steps for its preparation:

[0025] (1) Weigh the raw materials in the formula according to the weight ratio, add the high molecular weight styrene copolymer, thermoplastic polyurethane, and high boiling point filler oil into the high mixer, stir for 30 minutes, and mix well;

[0026] (2) Put the remaining other raw materials into the high mixer together with the raw materials mixed in st...

Embodiment 2

[0029] A thermoplastic elastomer with high melt strength and high adhesion, the basic formula and weight ratio are: 35 parts of styrene-isoprene-styrene block copolymer, 30 parts of random copolymerized polypropylene, polyether type 14 parts of thermoplastic polyurethane, 12 parts of hydroxyl-terminated dendritic polyester, 8 parts of terpene-phenolic resin, 9 parts of hydrogenated petroleum resin, 20 parts of paraffin oil, 14 parts of maleic anhydride grafted SEBS, and 6 parts of antioxidant.

[0030] The above-mentioned high-melt-strength high-bonding thermoplastic elastomer has the following steps for its preparation:

[0031] (1) Weigh the raw materials in the formula according to the weight ratio, add the high molecular weight styrene copolymer, thermoplastic polyurethane, and high boiling point filler oil into the high mixer, stir for 60 minutes, and mix well;

[0032] (2) Put the remaining other raw materials into the high mixer together with the raw materials mixed in ...

Embodiment 3

[0035] A thermoplastic elastomer with high melt strength and high adhesion, the basic formula and weight ratio are: 30 parts of styrene-isoprene-styrene block copolymer, 25 parts of random copolymerized polypropylene, polyether type 10 parts of thermoplastic polyurethane, 8 parts of hydroxyl-terminated dendritic polyamide ester, 5 parts of terpene-phenolic resin, 6 parts of bicyclodiene petroleum resin, 17 parts of paraffin oil, 8 parts of maleic anhydride grafted SEBS, and 4 parts of antioxidant share.

[0036] The above-mentioned high-melt-strength high-bonding thermoplastic elastomer has the following steps for its preparation:

[0037] (1) Weigh the raw materials in the formula according to the weight ratio, add high molecular weight styrene copolymer, thermoplastic polyurethane, and high boiling point filler oil into the high mixer, stir for 45 minutes, and mix well;

[0038] (2) Put the remaining other raw materials into the high mixer together with the raw materials mi...

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Abstract

The invention discloses a high-melt-strength high-bonding-property thermoplastic elastomer and a preparation method thereof. The high-melt-strength high-bonding-property thermoplastic elastomer contains the following components in parts by weight: 25-35 parts of a high molecular weight styrene copolymer, 20-30 parts of polypropylene, 6-14 parts of thermoplastic polyurethane, 5-12 parts of a chain extender, 3-8 parts of a tackifier 1, 2-9 parts of a tackifier 2, 14-20 parts of tackifier filling oil, 3-14 parts of a compatilizer and 2-6 parts of an antioxidant. The preparation method comprises the following steps: weighing the materials in the formula in parts by weight; uniformly mixing the materials; inputting the mixed raw materials into a feeding hopper of a twin-screw extruder; and performing melt extrusion and granulation. The thermoplastic elastomer disclosed by the invention is high in melt strength, good in mechanical strength, difficult to shrink and good in encapsulating adhesive property, and is suitable for the fields of toy tires, bathroom hoses and automobile sealing strips, etc.

Description

technical field [0001] The invention relates to the field of thermoplastic elastomers, in particular to a thermoplastic elastomer with high melt strength and high adhesion and a preparation method thereof. Background technique [0002] Thermoplastic elastomer (TPE) not only has the excellent properties of high elasticity and aging resistance of traditional cross-linked vulcanized rubber, but also has the characteristics of convenient processing and various processing methods of ordinary plastics. TPE has excellent processing performance, does not need to be vulcanized, and can be recycled. It can be used for secondary injection molding, coated with PP, PE, PC, PS, ABS and other base materials, and can also be formed separately. TPE has both the processing properties of thermoplastics and the physical properties of vulcanized rubber, and has broad application prospects. [0003] The tensile strength of thermoplastic elastomer itself is low, so polypropylene is generally adde...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L23/14C08L75/08C08L77/00C08L67/00C08L45/00C08L57/02C08L91/00C08L91/06C08L51/00B29B9/06B29C47/92B29C48/92
CPCC08L53/02B29B9/06B29C48/92B29C2948/9258B29C2948/92704C08L2205/035C08L2207/04C08L2207/14C08L23/14C08L75/08C08L77/00C08L67/00C08L45/00C08L57/02C08L91/00C08L91/06C08L51/006
Inventor 刘凤姐
Owner 泉州盈创新材料技术开发有限公司
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