H-grade CTI600 epoxy glass cloth laminated board and production method thereof
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A technology of epoxy glass cloth and production method, applied in glass/slag layered products, lamination, layered products, etc., can solve the problems of uneven glue content, short service life, low tracking voltage resistance, etc.
Active Publication Date: 2020-10-09
JIANGYIN HUCHENG INSULATING MATERIAL
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[0012] The object of the present invention is to provide a kind of H grade CTI600 epoxy glass cloth laminated board and its production method, the laminated board produced by this method can solve the service
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0175] 1. Glue formula:
[0176]
[0177] 2. Control parameters of prepreg:
[0178] drying temperature Dipping speed resin content Dipping time Liquidity Volatile matter 170℃ 16m / min 41％ 100s 21％ 0.3％
[0179] When the glass cloth is dipped in glue, the vacuum-assisted gluing method is adopted;
[0180] 3. Hot pressing parameters:
[0181] The first pressure parameters are:
[0182] Hot pressing temperature pressure Hot pressing time 180℃ vacuum hot pressing 30kg / cm 2
45min
[0183] The second pressure parameter is:
[0184] Hot pressing temperature pressure Hot pressing time 150℃ vacuum hot pressing 10kg / cm 2
Embodiment 2
[0186] 1. Glue formula:
[0187]
[0188] 2. Control parameters of prepreg:
[0189] drying temperature Dipping speed resin content Dipping time Liquidity Volatile matter 180℃ 18m / min 45％ 97s 23％ 0.35％
[0190] When the glass cloth is dipped in glue, the vacuum-assisted gluing method is used; 3. Hot pressing parameters:
[0191] The first pressure parameters are:
[0192] Hot pressing temperature pressure Hot pressing time 178℃ vacuum hot pressing 43kg / cm 2
61min
[0193] The second pressure parameter is:
[0194] Hot pressing temperature pressure Hot pressing time 142℃ vacuum heat press 20kg / cm 2
Embodiment 3
[0196] 1. Glue formula:
[0197]
[0198]
[0199] 2. Control parameters of prepreg:
[0200] drying temperature Dipping speed resin content Dipping time Liquidity Volatile matter 200℃ 20m / min 42％ 95s 24％ 0.37％
[0201] When the glass cloth is dipped in glue, the vacuum-assisted gluing method is adopted;
[0202] 3. Hot pressing parameters:
[0203] The first pressure parameters are:
[0204] Hot pressing temperature pressure Hot pressing time 175℃ vacuum hot pressing 50kg / cm 2
100min
[0205] The second pressure parameter is:
[0206] Hot pressing temperature pressure Hot pressing time 135℃ vacuum heat press 25kg / cm 2
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention relates to a production method of an H-grade CTI600 epoxy glass cloth laminated board. The production method comprises the steps of resin synthesis and glue solution preparation, reinforcing material impregnation and drying, impregnation material shearing and inspection, impregnation material and copper foil lamination, hot press molding, cutting, inspection and packaging. In the step of resin synthesis and glue solution preparation, a glue solution comprises the following components in parts by mass: 40-70 parts of bisphenol A novolac epoxy resin, 30-50 parts of brominated epoxyresin, 10-20 parts of high-bromine epoxy resin, 5-20 parts of dapsone, 0.01-0.2 part of dimethylimidazole, 45-50 parts of dimethylformamide and 30-60 parts of barium sulfate. The problems that the service life of a traditional laminated board is short due to the fact that the prepreg is insufficient in thermal stability and uneven in glue content, and the insulativity of a substrate becomes poordue to the fact that the tracking voltage resistance is low can be solved.
Description
technical field [0001] The invention relates to a manufacturing method of a laminated board, in particular to an H-grade CTI600 epoxy glass cloth laminated board and a production method thereof. Background technique [0002] A laminate is a type of laminated product. A laminated product is a whole made of two or more layers of resin-impregnated fibers or fabrics that are laminated and bonded by heat and pressure. Laminated products can be processed into various insulating and structural parts, which are widely used in motors, transformers, high and low voltage electrical appliances, electrical instruments and electronic equipment. [0003] In the process of producing prepreg, due to the change of the surface stress of the glass cloth, uneven glue content is prone to occur, and defects such as glue particles, pinholes, and fish eyes are prone to appear. In order to avoid the appearance of colloidal particles, try not to use glass cloth with thread ends or interrupted yarns ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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