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 cha

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035]Example 1.

[0036]A TPU film, composed of the following raw materials according to the weight ratio:

[0037]TPU particles 69m92 83%, the TPU granules are TPU particles having a Bangtai model of 69m92,

[0038]The TPU granules is Ryan 702 12.7%,

[0039]TPU particles WHT-6232 4%, the TPU particles are TPU particles whose Wanhua model WHT-6232,

[0040]UV absorber UV-531 0.2%,

[0041]Antioxidant 1010 0.1%.

[0042]The method of preparing the TPU film comprises the steps of:

[0043]Step 1, ingredients: The above type TPU particles, ultraviolet absorbers, and antioxidants are added to the stirring vessel.

[0044]Step 2, mixing: Place the stirring device inside the stirring container, stirring the TPU particles, ultraviolet absorbers, and antioxidants inside the container by stirring, and the stirring time is 30 minutes, the stirring device rotational speed is 500 rpm;

[0045]Step three, dehumidification drying: Place the mixture after stirring in step II to the dry dehumidification device, and dry the mi...

Example Embodiment

[0052]Example 2.

[0053]A TPU film, composed of the following raw materials according to the weight ratio:

[0054]TPU particles 69m92 75%, the TPU granules are TPU granules with 69m92, and

[0055]The TPU granules is Ryan 702 15%,

[0056]TPU particles WHT-6232 7.5%, the TPU particles are TPU particles whose Vanhua model is WHT-6232,

[0057]UV absorbent UV-531 2%,

[0058]Antioxidant 1010 0.5%.

[0059]The method of preparing the TPU film comprises the steps of:

[0060]Step 1, ingredients: The above type TPU particles, ultraviolet absorbers, and antioxidants are added to the stirring vessel.

[0061]Step 2, mixing: Place the stirring device inside the stirring container, stirring the TPU particles, ultraviolet absorbers, and antioxidants inside the container by stirring, and the stirring time is 30 minutes, the stirring device rotational speed is 500 rpm;

[0062]Step three, dehumidification drying: Place the mixture after stirring in step II to the dry dehumidification device, and dry the mixture in the dry...

Example Embodiment

[0069]Example 3.

[0070]A TPU film, composed of the following raw materials according to the weight ratio:

[0071]TPU particles 69m92 80%, the TPU granules are the TPU granules having 69m92 in Bangtai,

[0072]The TPU granules is Ryan 702 8%,

[0073]TPU particles WHT-6232 10%, the TPU granules are TPU particles whose Wanhua model is WHT-6232,

[0074]UV absorbent UV-531 1.7%,

[0075]Antioxidant 1010 0.3%.

[0076]The method of preparing the TPU film comprises the steps of:

[0077]Step 1, ingredients: The above type TPU particles, ultraviolet absorbers, and antioxidants are added to the stirring vessel.

[0078]Step 2, mixing: Place the stirring device inside the stirring container, stirring the TPU particles, ultraviolet absorbers, and antioxidants inside the container by stirring, and the stirring time is 30 minutes, the stirring device rotational speed is 500 rpm;

[0079]Step three, dehumidification drying: Place the mixture after stirring in step II to the dry dehumidification device, and dry the mixtur...

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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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