High-performance TPU (Thermoplastic Polyurethane) modified thin film and preparation method thereof

A high-performance, thin-film technology, applied in the field of high-performance TPU modified film and preparation, can solve the problem of lack of windproof, cold-proof, antibacterial, mildew-proof, warm-keeping, anti-ultraviolet, restricting the promotion and application of TPU film, wear-resistant and yellow-resistant properties. Poor and other problems, to achieve the effects of high water resistance, high productivity, and enhanced yellowing resistance

Inactive Publication Date: 2018-12-21
杨杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional production process of TPU film produces a film with uneven thickness, high production cost, uneven plasticization, poor wear resistance and yellow resistance, and does not have the functions of windproof, cold proof, antibacterial, mildew proof, warm keeping, and UV resistance. , limiting the popularization and application of TPU film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A preparation method of high-performance TPU modified film: Step 1: 1 part of sodium potassium silicate, 2 parts of flame retardant, 5 parts of natural polyphenol, 10 parts of polyester staple fiber, 3 parts of leveling agent, friction-resistant 5 parts of plasticizer, 1 part of environmentally friendly plasticizer, 5 parts of photodegradant, and 10 parts of cornstarch were mixed evenly to obtain a premix;

[0018] Step 2. Mix 70 parts of TPU particles, 8 parts of rubber and 10 parts of epoxy resin in a high-speed mixer, then add the premix and continue to stir for 20 minutes. The refining time is 5 minutes. After banburying, it is first extruded by the extruder and then passed through the rolling mill, and then transported to four rolls, and calendered to obtain a film product. In the second step, the temperature of the extruder is controlled at 135 ° C. The temperature of the rollers was controlled at 145°C.

Embodiment 2

[0020] A preparation method of a high-performance TPU modified film: Step 1: 2 parts of sodium potassium silicate, 3 parts of flame retardant, 6 parts of natural polyphenol, 12 parts of polyester staple fiber, 5 parts of leveling agent, 8 parts of friction agent, 2 parts of environmentally friendly plasticizer, 6 parts of photodegradant, and 12 parts of starch are mixed evenly to obtain a premix;

[0021] Step 2. Mix 75 parts of TPU particles, 10 parts of rubber and 15 parts of epoxy resin in a high-speed mixer, then add the premix and continue to stir for 25 minutes. The refining time is 7 minutes. After banburying, it is first extruded through the extruder and then passed through the rolling mill, and then transported to four rolls, and calendered to obtain a film product. In the second step, the temperature of the extruder is controlled at 140 ° C. The temperature of the rolls was controlled at 155°C.

Embodiment 3

[0023] A preparation method of high-performance TPU modified film: Step 1: 3 parts of sodium potassium silicate, 4 parts of flame retardant, 8 parts of natural polyphenol, 15 parts of polyester staple fiber, 8 parts of leveling agent, friction-resistant 12 parts of plasticizer, 3 parts of environment-friendly plasticizer, 8 parts of photodegradant, and 15 parts of starch were mixed evenly to obtain a premix;

[0024] Step 2. Mix 80 parts of TPU particles, 12 parts of rubber and 20 parts of epoxy resin in a high-speed mixer, then add the premix and continue stirring for 30 minutes, the temperature is controlled at 100 ° C, and then all the materials enter the internal mixer, densely The refining time is 8 minutes. After banburying, it is first extruded by the extruder and then passed through the rolling mill, transported to four rolls, and calendered to obtain a film product. In the second step, the temperature of the extruder is controlled at 155 ° C. The temperature of the ro...

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Abstract

The invention discloses a high-performance TPU (Thermoplastic Polyurethane) modified thin film and a preparation method thereof and in particular relates to the technical field of preparation of TPU modified plastic. The modified thin film is prepared from the following raw materials in parts by weight: 75 parts of TPU particles, 10 parts of rubber, 2 parts of sodium potassium silicate, 3 parts ofa flame retardant, 6 parts of natural polyphenol, 15 parts of epoxy resin, 12 parts of polyester staple fibers, 6 parts of a flatting agent, 10 parts of a friction-resisting agent, 2 parts of an environment-friendly plasticizer, 7 parts of a light degradation agent and 12 parts of starch. The modified TPU thin film has the advantages of high productivity, high surface glossiness and the like; meanwhile, the modified TPU thin film also has excellent functions of high water resistance, wear resistance, moisture permeability, wind-proof performance, cold-proof performance, antibacterial performance, anti-mildew performance, warm-keeping performance, anti-ultraviolet performance and the like; the natural polyphenol added in a preparation process can be used for effectively enhancing the yellowing resistance of the thin film; a formula contains a starch material, so that the production cost can be reduced, and the degradation time is accelerated; no air pollution is caused in an incineration and combustion process and the modified TPU thin film has a good protection effect on the environment.

Description

technical field [0001] The invention relates to a high-performance TPU modified film and a preparation method, in particular to the technical field of TPU modified plastic preparation. Background technique [0002] TPU, thermoplastic polyurethane elastomer, is a new type of organic functional polymer synthetic material. It is a polymer material formed by the reaction and polymerization of diisocyanate molecules such as diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) with macromolecular polyols and low molecular polyols (chain extenders). Its molecular structure is a rigid block obtained by reacting diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) with a chain extender and diisocyanates such as diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) Molecules and macromolecular polyols react to form flexible segments alternately. TPU has excellent characteristics of high tension, high tensile strength, toughness and aging resistance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L21/00C08L63/00C08L67/00C08L3/02C08K13/02C08K5/098C08K3/34C08K3/26C08K3/36C08J5/18
CPCC08J5/18C08J2375/04C08J2403/02C08J2421/00C08J2463/00C08J2467/00C08K3/34C08K3/36C08K5/098C08K13/02C08K2003/265C08K2201/011C08K2201/014
Inventor 杨杰
Owner 杨杰
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