TPU adhesive film

A film and particle technology, applied in the field of thermoplastic polyurethane elastomer rubber, can solve the problems of difficulty in processing TPU materials, destroying the physical properties of TPU, opacity of slip agents, etc. Good results

Pending Publication Date: 2021-04-16
广州市赞晨新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the TPU material will absorb moisture in the air and turn white or the additives added during the processing will migrate out. The main reason is that the slip agent is opaque. Yellowing is a characteristic of TPU, and because TPU has high Viscosity, it is easy to generate high shear force in the material tube and destroy the physical properties of TPU itself, so it is difficult to process TPU materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of TPU adhesive film is made up of following raw material according to weight ratio:

[0037] TPU particles 69M92 83%, the TPU particles are TPU particles of Bangtai model 69M92,

[0038] The grade of TPU particles is Rui'an 702 12.7%,

[0039] TPU granules WHT-6232 4%, the TPU granules are TPU granules of Wanhua model WHT-6232,

[0040] UV absorber UV-531 0.2%,

[0041] Antioxidant 1010 0.1%.

[0042] The preparation method of described a kind of TPU adhesive film, this method comprises the following steps:

[0043] Step 1. Ingredients: Add the above-mentioned TPU particles, ultraviolet absorbers and antioxidants to the stirring container in sequence;

[0044] Step 2. Mixing materials: place the stirring device inside the stirring container, and stir the TPU particles, ultraviolet absorbers and antioxidants inside the container through the stirring device. The stirring time is 30 minutes, and the stirring device rotates at 500 rpm;

[0045] Step 3, dehumidi...

Embodiment 2

[0053] A kind of TPU adhesive film is made up of following raw material according to weight ratio:

[0054] TPU granules 69M92 75%, the TPU granules are TPU granules of Bangtai model 69M92,

[0055] The grade of TPU particles is Rui'an 702 15%,

[0056] TPU granules WHT-6232 7.5%, the TPU granules are TPU granules of Wanhua model WHT-6232,

[0057] UV absorber UV-531 2%,

[0058] Antioxidant 1010 0.5%.

[0059] The preparation method of described a kind of TPU adhesive film, this method comprises the following steps:

[0060] Step 1. Ingredients: Add the above-mentioned TPU particles, ultraviolet absorbers and antioxidants to the stirring container in sequence;

[0061] Step 2. Mixing materials: place the stirring device inside the stirring container, and stir the TPU particles, ultraviolet absorbers and antioxidants inside the container through the stirring device. The stirring time is 30 minutes, and the stirring device rotates at 500 rpm;

[0062] Step 3, dehumidificat...

Embodiment 3

[0070] A kind of TPU adhesive film is made up of following raw material according to weight ratio:

[0071] TPU particles 69M92 80%, the TPU particles are TPU particles of Bangtai model 69M92,

[0072] The grade of TPU particles is Rui'an 702 8%,

[0073] TPU granules WHT-6232 10%, the TPU granules are TPU granules of Wanhua model WHT-6232,

[0074] UV absorber UV-531 1.7%,

[0075] Antioxidant 1010 0.3%.

[0076] The preparation method of described a kind of TPU adhesive film, this method comprises the following steps:

[0077] Step 1. Ingredients: Add the above-mentioned TPU particles, ultraviolet absorbers and antioxidants to the stirring container in sequence;

[0078] Step 2. Mixing materials: place the stirring device inside the stirring container, and stir the TPU particles, ultraviolet absorbers and antioxidants inside the container through the stirring device. The stirring time is 30 minutes, and the stirring device rotates at 500 rpm;

[0079] Step 3, dehumidifi...

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PUM

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Abstract

The invention provides a TPU adhesive film. The TPU adhesive film is prepared from the following raw materials in percentage by weight: 75-83% of TPU particles 69M92, 8-15% of TPU particles with the trademark of Reyan 702, 4-10% of TPU particles WHT6232, 0.2-2% of an ultraviolet light absorber and 0.1%-0.5% of an antioxidant; the preparation method of the TPU adhesive film comprises the following steps: (1) burdening, (2) mixing, (3) dehumidifying and drying, (4) plasticizing and extruding, (5) blow molding and shaping, (6) cooling and (7) packaging, and has the advantages of being easy to process, good in bonding strength and good in antioxidant effect.

Description

technical field [0001] The invention relates to the field of thermoplastic polyurethane elastomer rubber, in particular to a TPU film. Background technique [0002] Thermoplastic polyurethane (TPU) is a block-type polymer composed of hard segments and soft segments with plasticity and elasticity. TPU has been widely used in industry and daily life, such as adhesives, coatings, composite materials and biomedical materials. Although TPU has many excellent properties, with the development of science and technology, in some fields, such as the field of electrical appliances, higher requirements are put forward for the flame retardancy of TPU films. [0003] TPU (Thermoplastic polyurethanes) is called thermoplastic polyurethane elastomer rubber. It is mainly divided into polyester type and polyether type. It has a wide range of hardness (60HA-85HD), wear resistance, oil resistance, transparency, and good elasticity. It is used in daily necessities, Sporting goods, toys and deco...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08K5/132C08K5/134C08J5/18
Inventor 廖占明廖晨
Owner 广州市赞晨新材料科技有限公司
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