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TPU foam material, its preparation method and TPU synthetic leather

A foaming material, synthetic leather technology, applied in textiles and papermaking, etc., can solve the problem of TPU synthetic leather feeling hard, and achieve the effect of improving the application value

Active Publication Date: 2020-08-11
GUANGDONG TIANAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a kind of TPU foam material, its preparation method and TPU synthetic leather, to solve the problem that TPU synthetic leather feels harder in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] In another typical embodiment of the present application, a method for preparing a TPU foam material is provided, the preparation method comprising: obtaining a TPU film precursor by calendering the raw material of any one of the above foam materials; and The TPU film precursor is foamed at 130-230° C. to obtain a TPU foam material. The TPU foam material obtained by using the above-mentioned raw materials of the present application for foaming at the above-mentioned foaming temperature has a hand feel comparable to that of PVC with the same formula.

[0026] The above-mentioned foaming material can be reasonably adjusted within the above-mentioned foaming temperature range. In a preferred embodiment of the present application, the TPU film precursor is placed in a foaming furnace for foaming, and the temperature of the foaming furnace is controlled in four sections, wherein, according to the foaming sequence of the TPU film precursor, successively go through The temper...

Embodiment 1

[0032] The raw materials of the TPU foaming layer include, by weight, 100 parts of TPU, 0.1 part of lubricant, 2 parts of foaming agent and 10 parts of plasticizing aid.

[0033] The raw materials of the TPU surface layer include, by weight, 100 parts of TPU, 0.1 part of lubricant and 5 parts of plasticizing aid.

[0034] Among them, the hardness of TPU is 60A; the lubricant is cadmium stearate; the foaming agent is AC foaming agent; the plasticizing aid is ACR.

[0035]The raw materials of the above-mentioned foam layer were calendered at 110°C to obtain a TPU foam film precursor; the raw materials of the above-mentioned surface layer were calendered at 120°C to obtain a TPU surface layer.

[0036] The above-mentioned TPU foaming film precursor is arranged on the knitted fabric, and then the TPU surface layer is arranged on the above-mentioned TPU foaming precursor to obtain a TPU synthetic leather precursor;

[0037] Place the above-mentioned TPU synthetic leather precursor...

Embodiment 2

[0039] The raw materials of the TPU foam layer include, by weight, 100 parts of TPU, 5 parts of lubricant, 8 parts of foaming agent and 30 parts of plasticizing aid.

[0040] The raw materials of the TPU surface layer include, by weight, 100 parts of TPU, 5 parts of lubricant and 20 parts of plasticizing aid.

[0041] Among them, the hardness of TPU is 45D; the lubricant is cadmium stearate; the foaming agent is AC foaming agent; the plasticizing aid is ACR.

[0042] The raw materials of the above-mentioned foam layer were calendered at 135°C to obtain a TPU foam film precursor; the raw materials of the above-mentioned surface layer were calendered at 118°C to obtain a TPU surface layer.

[0043] The above-mentioned TPU foaming film precursor is arranged on the knitted fabric, and then the TPU surface layer is arranged on the above-mentioned TPU foaming precursor to obtain a TPU synthetic leather precursor;

[0044] Place the above-mentioned TPU synthetic leather precursor in...

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Abstract

The invention provides a TPU foam material, its preparation method and TPU synthetic leather. In parts by weight, the raw materials of the TPU foaming material include 100 parts of TPU, 0.1-5 parts of lubricant, 2-8 parts of foaming agent and 10-30 parts of plasticizing aid. By synergistically coordinating TPU with lubricants, foaming agents and plasticizing aids in specific parts by weight, the raw material mixture can obtain a feel similar to that of PVC synthetic leather with the same formulation through foaming, thereby improving the development of this type of TPU. The application value of foam materials in home decoration and automotive decoration materials.

Description

technical field [0001] The invention relates to the field of home decoration materials, in particular to a TPU foam material, its preparation method and TPU synthetic leather. Background technique [0002] TPU is thermoplastic polyurethane, which is divided into polyester type and polyether type. It has a wide range of hardness (40A-85D), wear resistance, oil resistance, transparency, and good elasticity. It is widely used in the fields of daily necessities, sporting goods, toys and decorative materials. . Halogen-free flame-retardant TPU can also replace soft PVC to meet more and more environmental protection requirements. [0003] However, TPU synthetic leather currently on the market is used in the home improvement or automotive markets. Due to its hard feel, it is currently difficult to obtain TPU synthetic leather with the same feel as PVC. Contents of the invention [0004] The main purpose of the present invention is to provide a kind of TPU foam material, its pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08L33/04C08K5/098C08J9/10D06N3/14D06N3/00
CPCC08J9/0023C08J9/0061C08J9/103C08J2203/04C08J2375/04C08J2433/04C08K5/098D06N3/005D06N3/145
Inventor 吴启超徐芳陈润娇陈慧雪谭荣汉王东勇周春发
Owner GUANGDONG TIANAN NEW MATERIAL