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TPE tourniquet and preparation method thereof

A tourniquet and copolymer technology, which is applied in the field of TPE tourniquet preparation, can solve the problems of lack of resilience, low permanent deformation and high tensile strength TPE tourniquet, so as to reduce permanent deformation, improve tensile strength and resilience Can effect

Active Publication Date: 2017-07-28
SUZHOU KANGBANG NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a lack of TPE tourniquets with excellent resilience properties, low permanent deformation and high tensile strength in the prior art

Method used

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  • TPE tourniquet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 100 parts by weight of SEBS; 50 parts by weight of PP, 80 parts by weight of extender oil, 0.2 parts by weight of SMA2021 high molecular weight styrene maleic anhydride copolymer; 4 parts by weight of SMA1000 low molecular weight styrene maleic anhydride copolymer; 0.2 parts by weight of antioxidant agent; 0.2 parts by weight slip agent. Put it into a high-mixer according to the weight and mix it for 5-10 minutes, and discharge it for later use; the mixed raw material is put into a twin-screw extruder to extrude and granulate, and the frequency of the extruder is 200-600 rpm; the obtained The product is vacuum injection molded into a mold at 190° C. to 220° C., and kept at the temperature for 2 to 8 hours under vacuum conditions, and then cooled and solidified to obtain a TPE tourniquet.

Embodiment 2

[0051] With 100 parts by weight of SEBS; 50 parts by weight of PP, 80 parts by weight of white oil, 0.5 parts by weight of SMA2021 high molecular weight styrene maleic anhydride copolymer; 4 parts by weight of SMA1000 low molecular weight styrene maleic anhydride copolymer; 0.2 parts by weight of antioxidant agent; 0.2 parts by weight slip agent. Put it into a high-mixer according to the weight and mix it for 5-10 minutes, and discharge it for later use; the mixed raw material is put into a twin-screw extruder to extrude and granulate, and the frequency of the extruder is 200-600 rpm; the obtained The product is vacuum injection molded into a mold at 190° C. to 220° C., and kept at the temperature for 2 to 8 hours under vacuum conditions, and then cooled and solidified to obtain a TPE tourniquet.

Embodiment 3

[0053] With 100 parts by weight of SEBS; 50 parts by weight of PP, 80 parts by weight of white oil, 1 part by weight of SMA3000 high molecular weight styrene maleic anhydride copolymer; 4 parts by weight of SMA1000MA low molecular weight styrene maleic anhydride copolymer; 0.2 parts by weight of antioxidant agent; 0.2 parts by weight slip agent. Put it into a high-mixer according to the weight and mix it for 5-10 minutes, and discharge it for later use; the mixed raw material is put into a twin-screw extruder to extrude and granulate, and the frequency of the extruder is 200-600 rpm; the obtained The product is vacuum injection molded into a mold at 190° C. to 220° C., and kept at the temperature for 2 to 8 hours under vacuum conditions, and then cooled and solidified to obtain a TPE tourniquet.

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Abstract

The invention relates to a TPE tourniquet which is prepared from the following components in parts by weight: 100 parts of SEBS, 30-60 parts of PP, 0.1-2 parts of a styrene maleic anhydride copolymer with a high molecular weight, 1-5 parts of a styrene maleic anhydride copolymer with a low molecular weight, 50-80 parts of white oil, 0.1-1 part of an antioxidant and 0.1-0.3 part of a smoothening agent. By adopting the styrene maleic anhydride copolymers, the tensile strength and rebound resilience of the TPE tourniquet can be greatly improved by means of vacuum injection molding, and permanent deformation of the TPE tourniquet is reduced.

Description

technical field [0001] The invention relates to a TPE tourniquet, and in addition, the invention also relates to a preparation method of the TPE tourniquet. Background technique [0002] Thermoplastic Elastomer TPE (Thermoplastic Elastomer) is a material that has the high elasticity, high strength, and high resilience of rubber, and has the characteristics of injection molding. It is environmentally friendly, non-toxic and safe, has a wide range of hardness, excellent colorability, soft touch, weather resistance, fatigue resistance and temperature resistance, excellent processing performance, no need for vulcanization, can be recycled to reduce costs, and can be used for secondary injection molding. It can be coated and bonded with PP, PE, PC, PS, ABS and other base materials, and can also be molded separately. [0003] Thermoplastic elastomer TPE tourniquet, as a new type of environmentally friendly material, can replace the original blood transfusion hose and play a role ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L23/12C08L35/06C08L91/00A61L31/04A61L31/14
Inventor 张唯舟陈银
Owner SUZHOU KANGBANG NEW MATERIALS CO LTD