Glue solution for producing thermal expansive glass web and method for producinb thermal expansive glass web with the glue solution

A thermal expansion, glass mat technology, used in manufacturing tools, glass manufacturing equipment, adhesives, etc., can solve the problems of low expansion rate, poor environmental protection of glue, pollution, etc., and achieve the effect of large thermal expansion rate, increased strength and thermal expansion rate

Active Publication Date: 2008-10-29
浙江博菲电气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing heat-expandable glass mat is made of isotropic disordered non-alkali glass fiber, and then used toluene, xylene, and acetone as solvents to prepare glue. The disadvantage is that the glue is not environmentally friendly, and it will Pollution occurs, the thermal expansion conditions are relatively high, and the expansion rate is small. It takes 30 minutes at 130°C to start thermal expansion
The use of disordered alkali-free glass fibers will affect the rigidity of the glass mat itself

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] According to the present invention, the proportioning (by weight) of glue used for making thermally expandable glass mat is 1 part of polyvinyl alcohol, 10 parts of acrylate, and 89 parts of water. The method of making heat-expandable glass mat with this glue includes the following steps: First, mix the glue, heat the water to 80°C±5°C, add 1 part of polyvinyl alcohol and 10 parts of acrylate, stir to completely dissolve the polyvinyl alcohol and mix evenly; Then turn on the gluing machine, heat up to 100°C, and fill the glue tank with glue; then install the glass mat made of continuous glass fiber on the gluing machine and connect it with the guide cloth; start gluing, when the horizontal When the temperature of the glue car is within the range of 115±5℃, the speed is generally 70r / min. When the weather is wet and difficult to dry, it can be accelerated to 80r / min. When the drying is too fast, it can be adjusted to 60r / min, and the glue amount is 8%. ±3%; cut the glass...

Embodiment 2

[0013] According to the present invention, the proportioning (by weight) of glue used for making thermally expandable glass mat is 1 part of polyvinyl alcohol, 14 parts of acrylate, and 85 parts of water. The method of making heat-expandable glass mat with this glue includes the following steps: First, mix the glue, heat the water to 80°C±5°C, add 1 part of polyvinyl alcohol and 14 parts of acrylate, stir to completely dissolve the polyvinyl alcohol and mix evenly; Then turn on the gluing machine, heat up to 100°C, and fill the glue tank with glue; then install the glass mat made of continuous glass fiber on the gluing machine and connect it with the guide cloth; start gluing, when the horizontal When the temperature of the glue car is within the range of 115±5℃, the speed is generally 70r / min. When the weather is wet and difficult to dry, it can be accelerated to 80r / min. When the drying is too fast, it can be adjusted to 60r / min, and the glue amount is 8%. ±3%; cut the glass...

Embodiment 3

[0015] According to the present invention, the proportioning (by weight) of glue used for making thermally expandable glass mat is 2 parts of polyvinyl alcohol, 12 parts of acrylate, and 86 parts of water. The method of making heat-expandable glass mat with this glue includes the following steps: First, mix the glue, heat the water to 80°C±5°C, add 1 part of polyvinyl alcohol and 14 parts of acrylate, stir to completely dissolve the polyvinyl alcohol and mix evenly; Then turn on the gluing machine, heat up to 100°C, and fill the glue tank with glue; then install the glass mat made of continuous glass fiber on the gluing machine and connect it with the guide cloth; start gluing, when the horizontal When the temperature of the glue car is within the range of 115±5℃, the speed is generally 70r / min. When the weather is wet and difficult to dry, it can be accelerated to 80r / min. When the drying is too fast, it can be adjusted to 60r / min, and the glue amount is 8%. ±3%; cut the glas...

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Abstract

The invention discloses a glue liquid for manufacturing a thermally-expandable glass mat and the method for manufacturing the thermally-expandable glass mat by using the glue liquid. The glue liquid comprises polyvinyl alcohol 1 to 2 parts, acrylic ester 10 to 14 parts and water 85 to 89 parts. The method for manufacturing the thermally-expandable glass mat by using the glue liquid comprises the following steps: (a) preparing a glue; (b) starting a gluing machine, heating to 100 DEG C, and filling a glue groove with the glue liquid; (c) loading a glass mat made from continuous glass fibers on the gluing machine and connecting with a guide cloth; (d) starting gluing; (e) cutting the glass mat and orderly arranging; (f) pre-heating an oil pressure machine to 60 to 70 DEG C for later use; (g) orderly arranging the glass mats according to a required thickness to obtain glass mat blanks, and arranging a separator between each two glass mat blanks; (h) pressing and cooling; and (i) trimming and packaging. The glass mat manufactured by using the glue liquid of the invention has the advantages of high thermal expansion efficiency, environmental protection and no pollution.

Description

technical field [0001] The invention relates to a glue solution for manufacturing heat-expandable glass felt and a method for making heat-expandable glass felt with the glue solution. The thermally expandable glass mat is widely used in various types of high, low voltage, AC and DC motors, mainly used as gaskets in slots, gaskets between adjacent coils, and pole body gaskets between magnetic pole coils and iron cores. Insulation, pads between parallel heads of R rotors, spacers between parallel head covers of large DC motors and vertical plates, spacers for defective turns of large generators, etc. Background technique [0002] Heat-expandable glass mat is a kind of loose plate made of alkali-free glass fiber by rolling and impregnated and pressed. It has the property of expanding after being heated. This product has a certain rigidity under normal conditions, but its structure is relatively loose, and it is easy to absorb glue. Under a certain humidity, it can produce a t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J129/04C09J9/00C03C17/28C03B37/005
Inventor 陆云峰
Owner 浙江博菲电气股份有限公司
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