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Composite material containing polyether TPU (thermoplastic polyurethane) and preparation method of composite material

A composite material and polyether technology, which is applied in the field of polyether thermoplastic polyurethane elastomers, can solve problems such as inability to process, harden, and unhealthy processing and use

Inactive Publication Date: 2014-11-19
陈曦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In China, the main processing material for calendering is polyvinyl chloride resin. Although polyvinyl chloride film is widely used, due to the limitation of its material characteristics, polyvinyl chloride products also have many shortcomings. Pure polyvinyl chloride cannot be processed, so In order to make it have various characteristics, some additives and plasticizers are added during processing. These additives and plasticizers generally have certain toxicity. When processing and using, they have a strong plastic taste and are not conducive to health. PVC Plastic has a short service life, poor wear resistance and weather resistance, it will become hard and easy to break when the temperature is low, and cracks will occur in severe cases, making it unusable, which limits the scope of use of rolled products in many aspects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] A kind of preparation method of the composite material containing polyether type thermoplastic polyurethane elastomer, its concrete steps are:

[0125] (1) Mixing drying: use ER-85A polyether TPU produced by Kunshan Gaoding Chemical Co., Ltd. (material specific gravity 1.12, hardness 85shoreA), 200kg is stirred in a rotary dryer, heated to 110°C and dried for 2 hours, pay attention to the material Surface condition to prevent precipitation;

[0126] (2) Blank forming and defoaming: wrap the dried polyether TPU particles and additives on the No. 1 mill, and the content of the additives is 0.5wt% of the polyether TPU particles; initial roll temperature setting The temperature is 175°C, and the speed ratio of the double rollers is set to 1:1.25. After the TPU particles are covered with rolls to form a soft sheet, the temperature of the rolls is lowered to 165°C, and the dry particles are added to cover the rolls. Plasticize the material at a certain temperature to form a ...

Embodiment 2

[0133] A kind of preparation method of the anti-ultraviolet composite material containing polyether TPU, its concrete steps are basically the same as embodiment 1,

[0134] The distinguishing technical features are:

[0135] Wherein, in step (2), the auxiliary agent is different,

[0136] The auxiliary agent is nano-composite ammonium phosphate, nano-barium sulfate masterbatch and nano-silicon dioxide;

[0137] The nano-composite ammonium phosphate, the mass ratio of nano-barium sulfate masterbatch and nano-silicon dioxide is 1:1:1;

[0138] In step (3), the polyester filament base cloth is changed to an anti-ultraviolet polyester filament base cloth.

Embodiment 3

[0144] A preparation method of an antibacterial composite textile fabric containing polyether TPU, its concrete steps are basically the same as embodiment 1,

[0145] The distinguishing technical features are,

[0146] Wherein, in step (2), the auxiliary agent is different,

[0147] The auxiliary agent is nano barium sulfate masterbatch, nano bamboo charcoal and nano titanium dioxide;

[0148] The mass ratio of the nano-barium sulfate masterbatch, nano-bamboo charcoal, and nano-titanium dioxide is 1:1:1.

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Abstract

The invention relates to a preparation method of a composite material containing a polyether thermoplastic polyurethane elastomer. The preparation method of the composite material comprises the following steps: (1) mixing and drying; (2) forming a blank and defoaming; and (3) calendaring and laminating, namely setting the temperature of a four-roll calender at 150-170 DEG C, feeding a plasticized polyether TPU material, forming a film which is 0.10-0.25mm thick on the roll surface, compounding the film with a polyester filament base fabric through an infrared preheating manner, laminating under a pressure of 35-60KG, cooling and shaping to obtain the composite material containing the polyether thermoplastic polyurethane elastomer. The preparation method of the composite material containing the polyether thermoplastic polyurethane elastomer has the advantages that the most mature industry with application of nano calcium carbonate is the plastic industry; nano calcium carbonate is mainly applied to high-grade plastic products; the rheological property of a plastic masterbatch can be improved; the formability and the strength of the plastic masterbatch can be increased; and nano calcium carbonate is widely used.

Description

【Technical field】 [0001] The invention relates to the technical field of polyether thermoplastic polyurethane elastomers, in particular to a composite material containing polyether thermoplastic polyurethane elastomers and a preparation method thereof. 【Background technique】 [0002] Calendering is mainly used to produce plastics and sheets, and different calendered products are obtained due to different processes. The main product of calendering at present is soft polyvinyl chloride film, which is widely used in industry and agriculture in the national economy. , national defense, medical and sanitation and daily necessities, etc. In industry, it is mainly used for waterproof covering, car decoration and large-scale equipment packaging covering, etc. In agriculture, it is used for seedling raising, greenhouse covering, heat preservation and sunshade, preventing soil erosion, etc. It is widely used in the production of raincoats, luggage, clothing, toy packaging, etc. It has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/24B29C43/56B29B13/06C08L75/08C08K3/30C08K3/36C08K3/22
Inventor 陈曦
Owner 陈曦
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