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Adhesive for aluminum alloy and preparation method thereof
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An adhesive, aluminum alloy technology, applied in the direction of adhesives, adhesive types, adhesive additives, etc., can solve the problems of insufficient heat resistance, insufficient adhesion and weather resistance
Inactive Publication Date: 2018-08-17
滕凤琴
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[0003] With the requirements of aesthetics, safety and use, when aluminum alloys are in use, it is often necessary to connect aluminum alloys according to the actual situation. The connection method is mainly to use connectors to fix and connect with adhesives. Compared with traditional riveting, welding, and threaded connections, they have indisputable advantages in terms of improving stress, improving structural performance, reducing quality parts, improving process operations, and reducing costs; however, due to their Adhesion and insufficient weather resistance, especially heat resistance, limit its use
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Embodiment 1
[0032] An adhesive for aluminum alloys, comprising the following raw materials calculated in parts by mass:
[0033] Modified 4 bromobisphenol A epoxy resin (70 parts of 4 bromobisphenol A epoxy resin, 10 parts of monoglyceride, 20 parts of KH-560) 35 kg, two (4-amino-3-methylcyclohexyl) 40 kg of methane, 5 kg of phenalkamine, 5 kg of KH-560, 5 kg of IPDI, 5 kg of octyl decaglycol myristate and 5 kg of monoglyceride.
[0034] Preparation:
[0035] (1) The preparation method of modified 4 bromobisphenol A epoxy resin is specifically:
[0036] A. Add the 4-bromobisphenol A epoxy resin and monoglyceride in the reaction kettle equipped with a stirrer, thermometer, gas inlet and outlet and material supply inlet and heat up to 50-60° C. within 30 minutes;
[0037] B. When the temperature reaches 65±2°C, add the KH-560 through the feed inlet, stir and keep warm for 2 hours;
[0038] C. After 2 hours of heat preservation, the temperature rises to 80±2°C, then stop heating, and heat...
Embodiment 2
[0046] An adhesive for aluminum alloys, comprising the following raw materials calculated in parts by mass:
[0047] Modified 4 bromobisphenol A epoxy resin (85 parts of 4 bromobisphenol A epoxy resin, 5 parts of monoglyceride, 15 parts of KH-560) 50 kg, bis(4-amino-3-methylcyclohexyl) Methane 20kg, Phenalkamine 10kg, KH-560 5kg, IPDI 5kg, Octyl Decaglycol Myristate 5kg and Monoglyceride 5kg.
[0048] Preparation method: with embodiment 1.
Embodiment 3
[0050] An adhesive for aluminum alloys, comprising the following raw materials calculated in parts by mass:
[0051] Modified 4 bromobisphenol A epoxy resin (80 parts of 4 bromobisphenol A epoxy resin, 8 parts of monoglyceride, 12 parts of KH-560) 40 kg, bis (4-amino-3-methylcyclohexyl) Methane 25 kg, phenalkamine 6 kg, KH-560 4 kg, IPDI 10 kg, octyl decaglycol myristate 10 kg and monoglyceride 5 kg.
[0052] Preparation method: with embodiment 1.
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Abstract
The invention belongs to the technical field of adhesive, and specifically relates to an adhesive for aluminum alloy and a preparation method thereof. The adhesive comprises following components in parts by weight: 35 to 50 parts of modified 4-bromo bisphenol A epoxy resin, 20 to 40 parts of bis(4-amino-3-methylcyclohexyl)methane, 5 to 10 parts of phenolaldehyde amine, 5 to 15 parts of KH-560, 5to 10 parts of IPDI, 5 to 10 parts of octyl dodecyl myristate, and 5 to 10 parts of monoglyceride. The provided adhesive has the advantages of strong binding force and excellent heatproof property, moreover, the preparation method is simple and easy to control, and the production period is shortened.
Description
technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to an adhesive used for aluminum alloys and a preparation method thereof. Background technique [0002] Aluminum alloy not only has low density, relatively high strength (close to or exceeding high-quality steel), good plasticity, can be processed into various profiles, and has excellent electrical conductivity, thermal conductivity and corrosion resistance, so it is widely used in industry. second only to steel. [0003] With the requirements of aesthetics, safety and use, when aluminum alloys are in use, it is often necessary to connect aluminum alloys according to the actual situation. The connection method is mainly to use connectors to fix and connect with adhesives. Compared with traditional riveting, welding, and threaded connections, they have indisputable advantages in terms of improving stress, improving structural performance, reducing quality parts, improv...
Claims
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Application Information
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