Hot melt adhesive film preparation device capable of reducing VOC (volatile organic compound) gas volatilization

A technology of hot-melt adhesive film and preparation device, which is applied to flat products, household appliances, and other household appliances, etc., can solve the problems of toxic substances, and achieve the effect of reducing and increasing emissions

Active Publication Date: 2021-11-16
江苏惠沣环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the present invention provides a hot-melt adhesive film preparation device that reduces the volatilization of VOC gas, and solves the problem that the existing hot-melt adhesive film produces volatile toxic substances during the preparation process.

Method used

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  • Hot melt adhesive film preparation device capable of reducing VOC (volatile organic compound) gas volatilization
  • Hot melt adhesive film preparation device capable of reducing VOC (volatile organic compound) gas volatilization
  • Hot melt adhesive film preparation device capable of reducing VOC (volatile organic compound) gas volatilization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Convey the Teflon mesh belt 5 at a rate of 1.8m / s, start the spinning pump to spray the hot melt adhesive material at the nozzle 6, and spray the modified raw material at the surface film spray seat 8, the ratio of hot melt adhesive raw material to modified raw material It is 1:0.1.

[0049] Start the high-temperature spout 7, spray 45 ℃ of air to the upper surface of the teflon mesh belt 5 (the fluid pressure of ejection is 250Kpa), start the injection slit 203, and the pressure of the injection slit 203 air is 180Kpa; then start the drying plate 15. The air at 10°C is sprayed out, and the surface temperature of the cooling plate 16 is -18°C. At the same time, the air flow chamber 17 is activated to discharge all the gas in the device to the outside of the device.

Embodiment 2

[0051] Convey the Teflon mesh belt 5 at a rate of 1.5m / s, start the spinning pump to spray the hot melt adhesive material at the nozzle 6, and spray the modified raw material at the surface film spray seat 8, the ratio of the amount of the hot melt adhesive raw material to the modified raw material It is 1:0.1.

[0052] Start the high-temperature spout 7, spray 40 ℃ of air to the upper surface of the teflon mesh belt 5 (the jetted fluid pressure is 200Kpa), start the injection slot 203, and the pressure of the injection slot 203 air is 150Kpa; then start the drying plate 15. Spray air at 5°C, the temperature on the surface of the cooling plate 16 is -20°C, and at the same time activate the air flow chamber 17 to discharge all the gas in the device to the outside of the device.

Embodiment 3

[0054] Convey the Teflon mesh belt 5 at a rate of 2m / s, start the spinning pump injection die mouth 6 to spray the hot melt adhesive raw material, and the surface film spray seat 8 spray the modified raw material, and the consumption ratio of the hot melt adhesive raw material and the modified raw material is 1:0.1.

[0055] Start the high-temperature spout 7, spray 50°C of air to the upper surface of the teflon mesh belt 5 (the fluid pressure ejected is 300Kpa), start the injection slot 203, and the pressure of the injection slot 203 air is 200Kpa; then start the drying plate 15. The air at 15°C is sprayed out, and the surface temperature of the cooling plate 16 is -15°C. At the same time, the air flow chamber 17 is activated to discharge all the gas in the device to the outside of the device.

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Abstract

The invention discloses a hot melt adhesive film preparation device capable of reducing VOC gas volatilization. The hot melt adhesive film preparation device comprises an outer box body, a plurality of transmission roller sets and a plurality of supports, wherein in the conveying direction of a Teflon mesh belt, the supports and the transmission roller sets are sequentially arranged at intervals in a crossed manner, and the bottom ends of the supports are located below the transmission roller sets, so that the Teflon mesh belt can sequentially pass through the positions below the supports and middle gaps of the transmission roller sets; in the conveying direction of the Teflon mesh belt, the first support is provided with a spinning pump spraying mold opening and a surface film spraying seat, and the other supports are each provided with a high-temperature spraying opening; an integrated temperature control board is arranged at the bottoms of the transmission roller sets; and in the conveying direction of the Teflon mesh belt, the last transmission roller set is a vacuum adsorption roller set. The device solves the problem that volatile toxic substances are generated in the preparation process of an hot melt adhesive film at present.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of hot-melt adhesive film preparation, and specifically relate to a hot-melt adhesive film preparation process and device for reducing VOC gas volatilization. Background technique [0002] Hot-melt adhesive film is a film product that is easy to industrialize by preparing hot-melt adhesive through calendering, casting, blown film, etc. Usually, the hot melt adhesive film is made of highly saturated polyolefin material as the base material. In order to increase the adhesive performance of the hot melt adhesive film, additives that are beneficial to adhesion are usually added. However, most of the polyolefin materials and adhesion aids used in hot melt films contain polar functional groups, which will generate a large amount of harmful gases under direct contact with high-temperature processing conditions, which do not meet the relevant standards for VOCs of automotive materials. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D7/01
CPCB29D7/01
Inventor 刘卫峰
Owner 江苏惠沣环保科技有限公司
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