A high temperature resistant sealant

Abstract

The invention discloses a high-temperature-resistant sealant. The high-temperature-resistant sealant comprises the following components in parts by weight: 100 parts of bisphenol-A epoxy resin, 8-12 parts of a superfine latent curing agent, 15-20 parts of a flexibilizer, 100-150 parts of an inorganic filler, 100-150 parts of a metal filler, 3-5 parts of a thixotropic agent and 2-4 parts of a coupling agent. The invention also discloses a preparation method and an application of the high-temperature-resistant sealant. The sealant is non-toxic and solvent-free, is high in thixotropy, convenient to construct, high in adhesive strength, high in sealing performance, excellent in flexibility of cured products and high in hardness, and is suitable for sealing rivets, bolts and crevices of metal plastic spraying parts by using adhesive tapes.

Description

technical field [0001] The invention relates to a high-temperature-resistant sealant which can be applied to adhesive and seal screws, rivets and gaps of metal plastic-sprayed parts such as metal movable cabinets and cabinets before plastic spraying. Background technique [0002] The transportable chassis is used to carry the system equipment, so that the equipment can be moved and quickly erected. It can be applied to the mobile command post on the vehicle, the fixed command post on the ground and the tent command post, as well as warehouses, stations, ports and other places. The portable chassis structure. [0003] The movable chassis is mainly made of aluminum plates after punching, milling, folding, clamping, riveting and other processing steps, and finally needs to be painted into the color required by Party A (military green, grass green, etc.). There are two types of coating layer: plastic powder and paint. Plastic powder has better wear resistance, and it is usually...

AI Technical Summary

Problems solved by technology

Since the curing temperature of plastic spraying needs to be 200°C, it is difficult for ordinary sealants to withstand this temperature. The sealants that can withstand this problem are all soft (silicone type) and cannot be polished. At the same time, electrostatic powder spraying needs to be easy to powder

Therefore, it is necessary to develop a sealant that is convenient for workers to operate, the cured product has a certain hardness, can withstand high temperatures of 200°C, and is easy to powder by electrostatic powder spraying, so as to solve the problem of plastic spraying and sealing of metal transportable chassis.

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