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Coating method of polypropylene material using waterborne adhesion promoter for polypropylene
Coating method of polypropylene material using waterborne adhesion promoter for polypropylene
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机译:水性助粘剂用于聚丙烯的聚丙烯材料的涂覆方法
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摘要
The water base adhesion promotor for polypropylene comprises:a grafted polypropylene chloride, which includes a polypropylene chloride moiety and a maleic an-hydride moiety as bonded thereto, and which has a chlorine content of 15~25 weight % and a maleic anhydride moiety content of 1~5 weight %;an amine-neutralized water-soluble resin;a wettability-improving agent; andwater;and is characterized by having:a combination ratio of 25~90 weight % as of the grafted polypropylene chloride to the total of the grafted polypropylene chloride and the amine-neutralized water-soluble resin;a combination ratio of 2.5~6.0 weight % as of the wettability-improving agent to the entirety of the promotor; anda solid content of 2~10 weight % of the entirety of the promotor.The method for coating to polypropylene materials comprises:a pretreatment step in which a polypropylene material is beforehand washed, and then immersed into the above water base adhesion promotor, and then dried; anda coating step in which a paint is coated to the material after the pretreatment step.
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