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TPU clad net

A sandwich and coating technology, applied in the chemical industry, can solve the problems of heat resistance, hot water resistance, poor compression resistance, PVC high temperature resistance, easy yellowing of appearance, etc., to achieve high cold resistance and color stability The effect of good and excellent physical mechanism performance

Inactive Publication Date: 2008-07-23
FUJIAN SIJIA ENVIRONMENTAL PROTECTION MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is back-coated adhesive; its material is relatively light, waterproof, moisture-proof, flame-retardant and heat-insulating; It is easy to deform when working in a hot environment, and it is easy to deform after being used for a long time, and it is generally toxic. For example, the toxicity of PVC plastic wrap comes from ethylhexylamine (DEHA) plasticizer; non-toxic PVC materials need to add special plasticizers. Plastics, which are more expensive
[0003] TPU (thermoplastic polyurethane), also known as thermoplastic TPU elastomer, has excellent mechanical strength, wear resistance, oil resistance and flex resistance, is environmentally friendly and non-toxic, especially the most outstanding wear resistance, and is known as the king of plastics, but The disadvantages are poor heat resistance, hot water resistance, and compression resistance, easy to turn yellow in appearance, and easy to stick to molds during processing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Coat the high-strength polyester fiber cloth with PU→dry→cool, the coating amount is 180g / m 2 , coating speed 20m / min, drying temperature 110°C; two layers of TPU film (bottom layer and surface layer) are preheated by adjusting the temperature of the heating roller, melted and then preheated with the middle layer of high-strength polyester sandwich fabric It is formed by pressing rubber rollers and iron rollers, and then cooling and shaping.

[0017] The composite process conditions are: mesh temperature 120°C; mesh speed 5m / min; bottom TPU film preheating temperature 130°C; surface TPU film preheating temperature 130°C; bottom TPU film heating temperature 145°C; surface TPU film heating temperature 145℃; pressure 40Kg / cm 2 ; Cooling speed 6m / min; Current 450A.

[0018] The weight components of the raw materials of special PU glue are: PU glue: 100PHR; toluene: 20PHR; bridging agent: 10PHR; accelerator: 1PHR; butanone: 30PHR;

[0019] The PU glue is a polyurethane tw...

Embodiment 2

[0023] Coat high-strength polyester fiber cloth PU→dry→cool, coating amount 200g / m 2 , coating speed 25m / min, drying temperature 130°C; two layers of TPU film (bottom layer and surface layer) are preheated by adjusting the temperature of the heating roller, melted and then preheated with the middle layer of high-strength polyester sandwich fabric It is formed by pressing rubber rollers and iron rollers, and then cooling and shaping.

[0024] The composite process conditions are: mesh temperature 125°C; mesh speed 6m / min; bottom TPU film preheating temperature 135°C; surface TPU film preheating temperature 135°C; bottom TPU film heating temperature 150°C; surface TPU film heating temperature 150℃; pressure 40Kg / cm 2 ; Cooling speed 8m / min; Current 450A.

[0025] The weight components of the raw materials of special PU glue are: PU glue: 100PHR; toluene: 20PHR; bridging agent: 10PHR; accelerator: 1PHR; butanone: 30PHR;

[0026] The PU glue is a polyurethane two-component adhe...

Embodiment 3

[0030] Coat the high-strength polyester fiber cloth with PU→dry→cool, the coating amount is 190g / m 2 , coating speed 23m / min, drying temperature 120°C; two layers of TPU film (bottom layer and surface layer) are preheated by adjusting the temperature of the heating roller, melted and then preheated with the middle layer of high-strength polyester sandwich fabric It is formed by pressing rubber rollers and iron rollers, and then cooling and shaping.

[0031] The composite process conditions are: mesh temperature 123°C; mesh speed 5.5m / min; bottom TPU film preheating temperature 130°C; surface TPU film preheating temperature 135°C; bottom TPU film heating temperature 150°C; surface TPU film heating Temperature 150°C; Pressure 40Kg / cm 2 ; Cooling speed 7m / min; Current 450A.

[0032] The weight components of the raw materials of special PU glue are: PU glue: 100PHR; toluene: 20PHR; bridging agent: 10PHR; accelerator: 1PHR; butanone: 30PHR.

[0033] The PU glue is a polyurethane...

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PUM

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Abstract

The invention provides a TPU mesh fabric, which is made by coating a special PU adhesive to a high-strength polyester fiber and then combining with a TPU film. The PU coating steps are: PU-coat arrow dry arrow cool the high-strength polyester fiber; the coating quantity is 180-200g / m2; the coating speed is 20-25m / min; the drying temperature is 110-130 DEG C; the two layers of TPU film (underlayer, face layer) are preheated and fused through the adjustment and change of the heating drum temperature, and then are rolled, cooled and formed with the high-strength polyester mesh fabric after middle-layer preheating through rubber roller and iron roll. The TPU mesh fabric has the advantages of environmental protection, innocuity, high strength, abrasion resistance, high cold tolerance, good color stability, good heat resistance and best PVC-replacing material.

Description

technical field [0001] The invention belongs to the field of chemical industry, and more specifically relates to a TPU sandwich net. Background technique [0002] PVC materials are widely used in modern life, such as various building materials, household items, etc., the full name is Polyvinylchlorid, the main ingredient is polyvinyl chloride, and other ingredients are added to enhance its heat resistance, toughness, ductility, etc. The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is back-coated adhesive; its material is relatively light, waterproof, moisture-proof, flame-retardant and heat-insulating; It is easy to deform when working in a hot environment, and it is easy to deform after being used for a long time, and it is generally toxic. For example, the toxicity of PVC plastic wrap comes from ethylhexylamine (DEHA) plasticizer; non-toxic PVC materials need to add special plasticizers. Plastic, its...

Claims

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Application Information

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IPC IPC(8): D06N3/18B32B37/02B32B37/06
Inventor 张宏旺
Owner FUJIAN SIJIA ENVIRONMENTAL PROTECTION MATERIAL TECH
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