Preparation method of high damping epoxy resin composite
An epoxy resin and composite material technology, which is applied in the field of preparation of high damping epoxy resin composite materials, can solve the problems of limited use range, low molding efficiency, difficult popularization and application, etc., and achieves low cost, high molding efficiency and simple process. Effect
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example 1
[0034] Preparation of damping layer: take the vibration-absorbing and sound-absorbing ZERONY-SOFT damping coating and coat it on the surface of the glass fiber unidirectional cloth, the coating thickness is 0.1mm to form a damping layer, put it at room temperature for 24h and then dry it for later use; The thickness is 0.6mm.
[0035] The damping layer is set to C, and the glass fiber unidirectional cloth without damping paint is set to D; the damping layer is interspersed in the multi-layer glass fiber unidirectional cloth in a symmetrical manner, and this example is D / D / D The damping reinforcement material layer is obtained by laying in the way of / C / D / D / D, and its mass is 192g by weighing;
[0036] Select 100g of SWANCOR2511-1A epoxy resin and 28g of BF curing agent produced by Tianjin Shangwei Enterprise Co., Ltd., put it into a high-speed mixer, and stir at a speed of 800 rpm for 20 minutes to obtain a resin system for VARI for standby; the high-speed mixer adopts German ...
example 2
[0040] Preparation of damping layer: Coating the vibration-absorbing and sound-absorbing ZERONY-HARD damping coating on the surface of the glass fiber three-way cloth with a coating thickness of 0.3 mm, and drying at room temperature for 24 hours before use. The resulting damping layup has a thickness of 1.3 mm.
[0041] Set the damping layer as C, and the glass fiber three-way cloth without damping paint as D; the damping layer is interspersed in the multi-layer glass fiber three-way cloth in a symmetrical manner, this example is D / D / C / D / D / C / D method is used to lay the damping reinforcement material layer, and its mass is 241g by weighing;
[0042] Select 100g of Araldite? LY 1564 epoxy resin and 30g of Aradur? 3486 curing agent produced by Huntsman in the United States. After stirring at a speed of 800 rpm for 20 minutes by a high-speed mixer, a resin system for VARI was obtained. The manufacturer of the high-speed mixer used And the model is the same as Example 1.
[004...
example 3
[0046] Preparation of damping layer: The vibration-absorbing and sound-absorbing ZERONY-SOFT damping coating was coated on the surface of the glass fiber two-way cloth with a coating thickness of 0.2 mm, and dried at room temperature for 24 hours before use. The resulting damping layup thickness was 0.9 mm.
[0047] Set the damping layer as C, and the glass fiber bidirectional cloth without damping coating as D; the damping layer is interspersed in the multi-layer glass fiber bidirectional cloth in a symmetrical manner, this example is C / D / D / C The damping reinforcement material layer is obtained by laying in the / D / D / C method, and its mass is 396g by weighing;
[0048] Select 100g EPIKOTE® MGS® RIMR 135 epoxy resin and 32g EPIKURE® MGS® RIMH 137 curing agent from Hansen Special Chemical Company of the United States. The manufacturer and model of the high-speed mixer are the same as in Example 1.
[0049] The resin system for VARI is compounded with the laid damping reinforci...
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Abstract
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