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A hot melt adhesive film preparation device that reduces volatilization of VOC gas

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: 2022-08-02
JIANGSU HUIFENG ENVIRONMENTAL TECH CO LTD
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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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  • A hot melt adhesive film preparation device that reduces volatilization of VOC gas
  • A hot melt adhesive film preparation device that reduces volatilization of VOC gas
  • A hot melt adhesive film preparation device that reduces volatilization of VOC gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The Teflon mesh belt 5 is conveyed at a speed of 1.8m / s, the spinning pump is started to spray the die opening 6 to spray the hot melt adhesive raw material, the film spraying seat 8 is sprayed with the modified raw material, and the dosage ratio of the hot melt adhesive raw material and the modified raw material is is 1:0.1.

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

Embodiment 2

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

[0052] Start the high temperature nozzle 7, spray air at 40°C on the upper surface of the Teflon mesh belt 5 (the pressure of the injected fluid is 200Kpa), start the spray slot 203, and the air pressure of the spray slot 203 is 150Kpa; then start the drying plate 15. Air at 5°C is sprayed out, the temperature of the surface of the cooling plate 16 is -20°C, and the airflow chamber 17 is activated at the same time to discharge the gas in the device to the outside of the device.

Embodiment 3

[0054] Transfer the Teflon mesh belt 5 at a speed of 2m / s, start the spinning pump to spray the hot melt adhesive raw material from the die 6, and spray the modified raw material from the surface film nozzle 8. The dosage ratio of the hot melt adhesive raw material and the modified raw material is: 1:0.1.

[0055] Start the high-temperature nozzle 7, spray air at 50°C to the upper surface of the Teflon mesh belt 5 (the pressure of the injected fluid is 300Kpa), start the spray slot 203, and the air pressure of the spray slot 203 is 200Kpa; then start the drying plate 15. Air at 15°C is ejected, the temperature of the surface of the cooling plate 16 is -15°C, and the airflow chamber 17 is activated at the same time to discharge 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 for reducing the volatilization of VOC gas, comprising: an outer box body, a plurality of driving roller groups and a plurality of brackets; The roller groups are arranged at intervals in sequence, and the bottom end of the support is located below the transmission roller group, so that the Teflon mesh belt can pass through the lower part of the support and the middle gap of the transmission roller group in sequence; Along the transmission direction of the Teflon mesh belt, the first support is provided with a spinning pump jetting die and a pellicle spray seat, and the other supports are provided with high temperature sprays; the bottom of the drive roller group A comprehensive temperature control plate is provided; along the transmission direction of the Teflon mesh belt, the last transmission roller group is a vacuum adsorption roller group; matter of matter.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of hot-melt adhesive film preparation, in particular to a hot-melt adhesive film preparation process and device that reduce VOC gas volatilization. Background technique [0002] Hot-melt adhesive film is a film product that is easy to be industrially produced by preparing hot-melt adhesive by calendering, casting, film blowing, etc. Usually, the hot melt adhesive film is prepared from a highly saturated polyolefin material. In order to increase the adhesive performance of the hot melt adhesive film, an auxiliary agent that is conducive to bonding is usually added. However, most of the polyolefin materials and adhesive auxiliaries used in hot sol films contain polar functional groups, which will generate a large amount of harmful gases under direct contact high-temperature processing conditions, which do not meet the relevant standards for VOCs in automotive materials. [0003] The prep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D7/01
CPCB29D7/01
Inventor 刘卫峰
Owner JIANGSU HUIFENG ENVIRONMENTAL TECH CO LTD
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