Preparation method of heat-resistant polyester plastic polyurethane elastomer

A thermoplastic polyurethane, polyester polyurethane technology, applied in the field of thermoplastic polyurethane elastomer preparation, can solve the problems of limited wide application, softening deformation, weakened mechanical properties, etc., achieves high thermal decomposition temperature, improves heat resistance, and thermal stability good effect
CN104017167AActive Publication Date: 2014-09-03苏州奥斯汀新材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
苏州奥斯汀新材料科技有限公司
Publication Date
2014-09-03

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Abstract

The invention discloses a preparation method of a heat-resistant polyester plastic polyurethane elastomer, which comprises the following steps: 1) adding polyester polyol and a catalyst into a reaction kettle, and dehydrating under the conditions of heating and vacuum to obtain a component A; respectively heating 1,5-naphthyldiisocyanate and a chain extender, evenly mixing with the component A, and carrying out extrusion reaction with a double screw extruder to obtain a polyester polyurethane elastomer; and 2) blending an epoxy resin with the polyester polyurethane elastomer obtained in the step 1) to obtain a blend, and drying the blend at 80-150 DEG C under the pressure of -0.08 to -0.1 MPa for 4-24 hours to obtain the heat-resistant polyester thermoplastic polyurethane elastomer. The heat-resistant polyester thermoplastic polyurethane elastomer prepared by the method is mainly used in the field of application of TPU (thermoplastic polyurethane) at higher temperature.
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Description

technical field

[0001] The invention relates to a preparation method of a thermoplastic polyurethane elastomer, in particular to a preparation method of a heat-resistant polyester type thermoplastic polyurethane elastomer. Background technique

[0002] Thermoplastic polyurethane elastomer (also known as TPU) new material is called "epoch-making new polymer material" and is one of the six most promising synthetic materials in the world.

[0003] Polyurethane elastomer has excellent properties such as good mechanical properties, wear resistance, oil resistance, tear resistance, chemical corrosion resistance, radiation resistance, good adhesion, etc., but its service temperature generally does not exceed 80°C, and materials above 100°C will soften Deformation, the mechanical properties are obviously weakened, and the short-term temperature does not exceed 120 ° C, which seriously limits its wide application. Contents of the invention

[0004] The technical problem to be solv...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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