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    期刊專利論文

    室溫固化和自磷化丙烯酸乳液及其應用

    來源:互聯網2015年12月22日

    閱讀次數:

    Room temperature dual-curing and self-phosphorization acrylic acid emulsion and application thereof 

    Priority number(歐洲專利號):  CN20151337568 

     

    Abstract:The invention discloses a room temperature dual-curing and self-phosphorization acrylic acid emulsion and application thereof. The room temperature dual-curing and self-phosphorization acrylic acid emulsion is prepared through the following steps: obtaining urethane acrylate containing keto carbonyl groups at first; mixing deionized water, a reactive anionic emulsifier, a water-soluble thermal initiator, the urethane acrylate, mono-acrylic acid phosphate, epoxy acrylate, and vinyl monomers, and adjusting the pH value to be 5-7, so as to obtain a pre-emulsion; taking part of the pre-emulsion, adding an initiator, reacting at the temperature of 80-85 DEG C till a blue phase occurs, and performing heat preservation for standby to obtain a seed emulsion, and then, continuing adding the pre-emulsion; adding an oxidation initiator and a reduction initiator, performing heat preservation, cooling, adjusting the pH value to be 7-8, adding adipic dihydrazide, filtering for removing residues, and discharging, so as to obtain the room temperature dual-curing and self-phosphorization acrylic acid emulsion. The emulsion is small in particle diameter and excellent in electrolyte (calcium ions) resistance stability. When used on steel surface, the acrylic acid emulsion can be cured into a film within 2h at the room temperature, the adhesive force is 1 grade, the hardness is 2H, and the salt mist resistance is 1000h.

     

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