Continuous soaking method and device for presoaked glass fiber cloth
A soaking device and glass fiber cloth technology, which is applied in the processing of textile materials, textiles and papermaking, liquid/gas/steam textile material processing, etc., can solve problems such as increased glue viscosity, reduced vehicle speed, broken cloth, etc., to achieve good results Wetting effect, high quality reliability, effect of prolonging wetting time
Inactive Publication Date: 2013-10-23
GUANGDONG SHENGYI SCI TECH
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Problems solved by technology
[0003] The longer the glass fiber cloth is soaked in the glue, the better the wettability of the glue to the glass fiber cloth. However, under the conditions of large-scale production, it is impossible to reduce the speed of the vehicle without limit, and when the glue tank is too large, it will cause glue The waste of the glass fiber cloth, and the distance of the glass fiber cloth in the glue is too long will increase the resistance of the glue to the glass fiber cloth. limited infiltration time
[0004] Usually, the impregnation process of copper clad laminates includes at least one prepreg and one main impregnation, and the glass fiber cloth is exposed to the air for a long distance between the prepreg and the main impregnation, resulting in the passage of the prepreg. The solvent in the glue on the surface of the glass fiber cloth volatilizes, the viscosity of the glue increases, and the wettability of the glue to the glass fiber cloth is poor.
Method used
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Embodiment 1
[0038] use figure 1 For the device shown, the width of the prepreg tank is L1=300mm, the width of the main dip tank is L2=300mm, the film protection distance (the distance between the centers of the two turning rollers) L3=2000mm, and the polyimide film with a thickness of 50μm is used to wrap the prepreg The two turning rollers between the glue tank and the main dipping tank, under the same production condition of 10m / min, the soaking time of the glass fiber cloth by the glue increases from 3.6 to 15.6 seconds, as shown in Table 1. The protection method dipping greatly increases the soaking time of the glue on the fiber cloth, so that the glue can achieve a better soaking effect on the glass fiber cloth.
[0039] Table 1
[0040]
[0041] Use the same glue, soak the same glass fiber cloth, soak in the same glue for 3 seconds, 15 seconds and 30 seconds respectively, and cure under the same baking conditions. The quality of the obtained bonding sheet is shown in Table 2.
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Abstract
The invention provides a continuous soaking method and device for presoaked glass fiber cloth. The method comprises the following steps that: 1, glass fiber cloth is provided, the glass fiber cloth is presoaked at a presoaking part and a glue layer is attached on the surface of the presoaked glass fiber cloth; 2, the presoaked glass fiber cloth firstly enters a protection part in the process of advancing to a main soaking part to realize continuous soaking of glue to the glass fiber cloth; the glass fiber cloth passes through the space between a pressure roller and a steering roller which are oppositely arranged, the glue layer on the lower surface of the glass fiber cloth is protected by a film wound and covered on the steering roller, and the glue layer on the upper surface of the glass fiber cloth is protected by a film wound and covered on the pressure roller; and 3, the presoaked glass fiber cloth enters the main soaking part to mainly soak after passing through the protection part. In the invention, the presoaked glass fiber cloth is protected in the main soaking process by using the films, thus, the glass fiber cloth is continuously soaked in glue in the process from the glue presoaking to the main glue soaking of the glass fiber cloth, the soaking time of the glass fiber cloth in the glue is prolonged, and a better soaking effect is achieved.
Description
technical field [0001] The invention relates to the technical field of impregnation of glass fiber cloth, in particular to a method for continuous infiltration of pre-impregnated glass fiber cloth and a device thereof. Background technique [0002] Glass fiber cloth dipping technology is one of the key technologies in the production of copper clad laminates. The better the wettability of the glue on the glass fiber cloth, the more fully the contact between the glue and the glass fiber cloth, and the better the quality of the adhesive sheet produced. The higher the quality and reliability of the copper clad laminate produced by the chip. [0003] The longer the glass fiber cloth is soaked in the glue, the better the wettability of the glue to the glass fiber cloth. However, under the conditions of large-scale production, it is impossible to reduce the speed of the vehicle without limit, and when the glue tank is too large, it will cause glue The waste of the glass fiber clot...
Claims
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IPC IPC(8): D06B3/10D06B23/00
Inventor 杨宏潘宏杰姚春权
Owner GUANGDONG SHENGYI SCI TECH