Dual component type polyurea paint and spraying method thereof

A two-component coating technology, applied in the field of coatings, can solve the problems of difficult construction, long surface drying time of water-based coatings, and inability to improve the low-temperature performance of PVC slush-plastic skins.
CN109852213AActive Publication Date: 2019-06-07CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2019-06-07

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Abstract

The invention provides a dual component type polyurea paint and a spraying method thereof. The provided polyurea paint comprises two components: a component A and a component B; wherein the main raw material of the component A is prepared through reactions between specific isocyanate and hydroxyl terminated compounds (or amino-terminated compounds) according to a certain ratio; the component B comprises amino terminated resin and an amino terminated chain extender according to a certain ratio. The polyurea paint can form a polyurea coating, which can well improve the low temperature performance of a PVC slush-moulded surface. When the PVC slush-moulded surface with a polyurea coating explodes at a low temperature, shattering or splashing will not happen; furthermore, the gelling time and surface drying time of the polyurea paint are short, thus the production efficiency is improved, proper hardness is guaranteed, and the phenomenon that the PVC slush-moulded surface is deformed due tolarge hardness is avoided.
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Description

technical field

[0001] The invention relates to the technical field of coatings, in particular to a two-component polyurea coating and a spraying method. Background technique

[0002] Polyvinyl chloride (PVC) slush-plastic skin is widely used in the instrument panels of high-end cars, but the PVC slush-plastic skin becomes brittle under low temperature conditions. When the airbag is blasted at low temperature, the PVC slush-plastic skin is prone to cracking and splashing, which poses a safety hazard. At the same time, due to the constraints of high cost of slush-molded materials and low utilization rate of skin materials, for the slush-molded product manufacturing industry, slush-molded skin products are high-cost and low-profit products; if the thickness of PVC slush-molded skin is changed from the current 1.2 mm is reduced to about 0.8mm, and the cost of the skin material will be reduced by about 33.3%. Therefore, it is an inevitable trend in the development of the slush ...

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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