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Method for manufacturing environment-friendly TPU foamed synthetic leather

A manufacturing method and technology of synthetic leather, applied in the field of synthetic leather manufacturing, can solve problems such as residual odor, harmful gas, and PVC foamed products are difficult to meet high standards of environmental protection, and achieve the effect of simple process and good comprehensive performance

Inactive Publication Date: 2016-08-17
SUZHOU RUIGAO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, PVC foamed products use a large amount of plasticizers and additives, which will produce a large amount of harmful gases during the production process, causing great harm to the health of operators, and PVC foamed products will also contain Residual odor, so it is difficult for PVC foamed products to meet high standards of environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A manufacturing method of environmentally friendly TPU foamed synthetic leather includes the following steps:

[0028] (1) Preparation of foaming agent:

[0029] 1 part by weight of AC foaming agent, 0.2 part by weight of EVA, 0.2 part by weight of maleic anhydride graft copolymer, and 0.1 part by weight of nano calcium are mixed and crushed to obtain foaming agent particles;

[0030] (2) Preparation of foamed TPU film:

[0031] Weigh 0.5 parts by weight of the above-prepared blowing agent particles, 5 parts by weight of thermoplastic polyurethane elastomer, 5 parts by weight of EVA, and 1 part by weight of graft copolymer, melt and mix at 100-300°C, and extrude. Obtain a foamed TPU film with a thickness of 0.1-2mm;

[0032] (3) Suppressed foamed TPU film:

[0033] Before the foamed TPU film prepared above is cooled, it is compounded and pressed with a woven fabric under a pressure of 0.1-0.8 MPa, and the primary synthetic leather is obtained after cooling;

[0034] (4) Preparatio...

Embodiment 2

[0043] A manufacturing method of environmentally friendly TPU foamed synthetic leather includes the following steps:

[0044] (1) Preparation of foaming agent:

[0045] 1 part by weight of AC foaming agent particles, 0.2 parts by weight of EVA, 0.1 parts by weight of maleic anhydride graft copolymer, and 0.2 parts by weight of nano calcium are mixed and crushed to obtain foaming agent particles;

[0046] (2) Preparation of foamed TPU film:

[0047] Weigh 1 part by weight of the above-prepared foaming agent, 7 parts by weight of thermoplastic polyurethane elastomer, 8 parts by weight of EVA, and 5 parts by weight of graft copolymer, melt and mix at 100-300°C, and extrude. Foamed TPU film with a thickness of 0.1-2mm;

[0048] (3) Suppressed foamed TPU film:

[0049] Before cooling the foamed TPU film prepared above, it is compounded and pressed with a microfiber cloth under a pressure of 0.1-0.8 MPa, and the primary synthetic leather is obtained after cooling;

[0050] (4) Preparation of T...

Embodiment 3

[0059] A manufacturing method of environmentally friendly TPU foamed synthetic leather includes the following steps:

[0060] (1) Preparation of foaming agent:

[0061] Mixing and crushing 1.2 parts by weight of AC blowing agent particles, 0.4 parts by weight of EVA, 0.1 parts by weight of maleic anhydride graft copolymer, and 0.1 parts by weight of nano-calcium to obtain blowing agent particles;

[0062] (2) Preparation of foamed TPU film:

[0063] Weigh 1 part by weight of the above-prepared foaming agent, 6 parts by weight of thermoplastic polyurethane elastomer, 20 parts by weight of EVA, and 10 parts by weight of graft copolymer, melt and mix at 100-300°C, and extrude. Foamed TPU film with a thickness of 0.1-2mm;

[0064] (3) Suppressed foamed TPU film:

[0065] Before cooling the foamed TPU film prepared above, it is compounded and pressed with a microfiber cloth under a pressure of 0.1-0.8 MPa, and the primary synthetic leather is obtained after cooling;

[0066] (4) Preparation o...

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PUM

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Abstract

The invention discloses a method for manufacturing environment-friendly TPU foamed synthetic leather. The method comprises the following steps: (1) preparing a foaming agent, namely, mixing an AC foaming agent and a carrier, and crushing so as to obtain foaming agent granules; (2) preparing a foamed TPU membrane, namely, weighing the following components in parts by weight: 1-8 parts of the foaming agent granules and a thermoplastic polyurethane elastomer, 5-20 parts of EVA and 0-10 parts of a grafting copolymer, melting and mixing at 100-300 DEG C, and extruding so as to obtain the foamed TPU membrane; (3) pressing the foamed TPU membrane; (4) preparing a TPU surface membrane, namely, melting and mixing 1-8 parts by weight of a coloring agent and a thermoplastic polyurethane elastomer at 100-300 DEG C, and pressing so as to obtain the TPU surface membrane of which the thickness is 0.1-1.5mm; (5) pressing the TPU surface membrane; (6) performing surface treatment; and (7) foaming. By adopting the mode, the method is free of a plasticizer or an additive and guarantees a safe and environment-friendly foaming process, and moreover, the manufactured foamed synthetic leather is good in comprehensive property, and can meet high-standard environment protection requirements.

Description

Technical field [0001] The invention relates to the technical field of synthetic leather manufacturing, in particular to a manufacturing method of environmentally friendly TPU foamed synthetic leather. Background technique [0002] At present, PVC foamed products use a large number of plasticizers and additives, which will generate a large amount of harmful gases during the production process, which will cause great harm to the health of the operators, and there will be some in the PVC foamed products. Residual smell, so it is difficult for PVC foamed products to meet high standards of environmental protection. Summary of the invention [0003] The main technical problem solved by the present invention is: in view of the shortcomings of the prior art, it provides an environmentally friendly TPU foamed synthetic leather manufacturing method, which is simple and easy to control, does not use plasticizers or additives, and the foaming process is safe and environmentally friendly, and...

Claims

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Application Information

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IPC IPC(8): D06N3/00D06N3/14C08L75/04C08L23/08C08L51/00C08K3/08C08J9/10B32B37/02B32B37/15
CPCD06N3/005B32B37/02B32B37/153B32B2038/0084B32B2375/00C08J9/103C08J2203/04C08J2323/08C08J2375/04C08J2423/08C08J2475/04C08K2201/011C08L23/0853C08L75/04C08L2205/025C08L2205/035C08L2207/04D06N3/0004D06N3/0006D06N3/0077D06N3/145D06N2211/28C08L51/00C08K3/08
Inventor 高金岗王俊峰周健韩立业李超高义辉裴莹
Owner SUZHOU RUIGAO NEW MATERIAL CO LTD