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High-toughness and impact-resistant TPU film and preparation method thereof

An impact-resistant and high-toughness technology, applied in the field of high-toughness and impact-resistant TPU film and its preparation, can solve the problems such as impact resistance and toughness need to be improved

Pending Publication Date: 2021-09-10
DONGGUAN XIONGLIN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these composite films have good mechanical properties and high impact strength, their impact resistance and toughness still need to be improved.

Method used

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  • High-toughness and impact-resistant TPU film and preparation method thereof
  • High-toughness and impact-resistant TPU film and preparation method thereof
  • High-toughness and impact-resistant TPU film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0045] A kind of acrylic acid modified polyurethane prepolymer, preparation method is as follows:

[0046] (1) After mixing polytetrahydrofuran diol and isophorone diisocyanate at a molar ratio of 1:1, react at 80°C for 2 hours to obtain a prepolymer with isocyanate groups at both ends blocked;

[0047] (2) Mix the prepolymer obtained in step (1) with methylol acrylate, and react at 72° C. to obtain the acrylic modified polyurethane prepolymer.

Embodiment 1

[0052] This embodiment provides a high-toughness and impact-resistant TPU film. The high-toughness and impact-resistant TPU film includes the following components in parts by weight: 50 parts of acrylic modified polyurethane prepolymer (Preparation Example 1), ethylene 30 parts of base silicone oil, 4 parts of methyl methacrylate, 0.3 parts of azobisisobutyronitrile, 0.03 parts of curing agent, 0.3 parts of nano-alumina and 80 parts of butanone.

[0053] The preparation method of the high-toughness and impact-resistant TPU film: acrylic modified polyurethane prepolymer, vinyl silicone oil, methyl methacrylate, azobisisobutyronitrile, tetraethyl orthosilicate, nano-alumina and Butanone was mixed evenly, and reacted at 60° C. for 4 hours to obtain the high-toughness and impact-resistant TPU film.

Embodiment 2

[0055] This embodiment provides a high-toughness and impact-resistant TPU film. The high-toughness and impact-resistant TPU film includes the following components in parts by weight: 40 parts of acrylic modified polyurethane prepolymer (Preparation Example 1), ethylene 20 parts of base silicone oil, 2 parts of methyl methacrylate, 0.1 part of azobisisobutyronitrile, 0.02 part of curing agent, 0.1 part of nano-alumina and 40 parts of butanone.

[0056] The preparation method of the high-toughness and impact-resistant TPU film: acrylic modified polyurethane prepolymer, vinyl silicone oil, methyl methacrylate, azobisisobutyronitrile, tetraethyl orthosilicate, nano-alumina and Butanone was mixed evenly, and reacted at 40° C. for 4 hours to obtain the TPU film with high toughness and impact resistance.

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Abstract

The invention provides a high-toughness and impact-resistant TPU (Thermoplastic Polyurethane) film and a preparation method thereof. The high-toughness and impact-resistant TPU film is prepared from the following components in parts by weight: 40 to 60 parts of acrylic acid modified polyurethane prepolymer, 20 to 40 parts of organic silicon resin, 2 to 6 parts of acrylic ester and 0.1 to 0.5 parts of nano aluminum oxide. The preparation method comprises the following steps of: well mixing acrylic acid modified polyurethane prepolymer, organic silicon resin, acrylate, a catalyst, a curing agent, nano aluminum oxide and a solvent, reacting, and drying to obtain the high-toughness and impact-resistant TPU film.

Description

technical field [0001] The invention belongs to the technical field of TPU films, and in particular relates to a high-toughness and impact-resistant TPU film and a preparation method thereof. Background technique [0002] Polyurethane thermoplastic elastomer (TPU) is a polyurethane molecule with a linear molecular chain. There are many physical crosslinks formed by hydrogen bonds between the linear polyurethane molecular chains, and the hydrogen bonds strengthen its shape, thus endowing many excellent properties, such as high modulus, high strength, excellent wear resistance, Chemicals, hydrolysis resistance, high and low temperature resistance and mold resistance. These good properties make thermoplastic polyurethane widely used in many fields such as shoe materials, cables, clothing, automobiles, medicine and health, pipes, films and sheets. [0003] TPU film is a film obtained by calendering, casting, blown film or coating process of TPU base material. TPU film can be w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/08C08L83/04C08L83/07C08K3/22C08J5/18C08F283/00C08F220/14
CPCC08J5/18C08F283/008C08J2351/08C08J2483/04C08J2483/07C08K2201/011C08K2003/2227C08F220/14
Inventor 何建雄
Owner DONGGUAN XIONGLIN NEW MATERIAL TECH