Heat-resisting powder coating for auto vent pipe and preparing method thereof
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A technology for automotive exhaust and powder coatings, applied in powder coatings, anti-corrosion coatings, polyester coatings, etc., can solve the problems of high cost and popularization, and achieve the effects of improving storage stability, low curing temperature, and improving compatibility
Inactive Publication Date: 2016-09-21
合肥燕美新材料科技有限公司
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Although the existing high-temperature-resistant powder coatings are more environmentally friendly than oil-based coatings, their popularization is limited due to their high cost and high-temperature curing (curing conditions are at least 230°C×20 minutes)
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[0021] Among them, the modified auxiliary agent is made of the following components by weight (kg): polyvinyl alcohol superfine powder 25, zinc borate 1.5, aluminum oxide C6, magnesium oxide 3-4, castor oil 3, boron nitride 1.5, gas phase two Silicon oxide 5, xylene 35, alkoxy diol 4, alkoxy triol 4, dimethylolpropionic acid 5, polysiloxane 3, p-toluenesulfonic acid 0.3, caprolactone 6, di Dibutyltin laurate 0.3, the preparation method of modified additiv...
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 provides heat-resisting powder coating for an auto vent pipe. The heat-resisting powder coating is prepared from, by weight, 10-20 parts of organosilicon-modified epoxy resin, 80-90 parts of o-cresol formaldehyde epoxy resin, 10-20 parts of hydroxyl polyester resin, 10-15 parts of polyisocyanate, 10-12 parts of polyester polyol, 1-2 parts of silane coupling agent, 1-2 parts of antioxidant 1010, 4-6 parts of ethylene propylene diene monomer, 3-5 parts of silicon carbide, 1-2 parts of boron nitride, 15-20 parts of mica powder, 2-3 parts of 2,6-tert-butyl-4-methylphenol, 0.5-1.0 part of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 15-18 parts of superfine barium sulfate, 8-10 parts of carbon black, 0.5-0.7 part of benzoin and 1-2 parts of performance additive. The coating is high in heat resistance, low in curing temperature, short in curing time, high in adhesive force and resistant to acid and alkali, and can be applied to coating of the auto vent pipe, and a coating film is high in levelling property and good in appearance.
Description
technical field [0001] The invention belongs to the field of coatings, in particular to a heat-resistant powder coating for automobile exhaust pipes and a preparation method thereof. Background technique [0002] With the advancement of modern science and technology and the development of modern industry, the problem of environmental pollution has become increasingly prominent, which poses a great threat to human beings themselves and the environment on which human beings depend. Traditional coatings will produce a large amount of toxic and harmful waste gas and waste water during the manufacturing process or during the construction process, which will pollute the environment, air and water resources, especially solvent-based coatings, which will release Volatile organic compounds (VOC) into the atmosphere, its amount has reached more than 50%, causing serious secondary pollution. This problem has attracted the attention of many industrial countries. [0003] As a kind of ...
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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