阳离子丙烯酸酯膜的制备及在微藻培养中的应用
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国家自然科学基金面上项目(21776293,51874213),山东省自然科学基金资助项目(ZR2019MEE114)


Preparation of Cationic Acrylate Film and Application in Microalgae Cultivation
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    摘要:

    以丙烯酸正丁酯(BA)、甲基丙烯酸甲酯(MMA)、丙烯酰胺(AM)、甲基丙烯酰氧乙基三甲基氯化铵(DMC)为共聚单体制备了阳离子丙烯酸酯乳液,考察了搅拌速率、单体比例、乳化剂和引发剂用量对乳液聚合的影响。结果表明,当搅拌速率为400 r/min,m(BA)∶m(MMA)=30∶70,OP-10和AIBI质量分别为单体质量的4.5%和1%时,制备的乳液及膜性能最佳。进一步研究了阳离子丙烯酸酯膜用作贴壁材料对微藻培养的影响,实验发现,培养10 d后膜材料保持完整,强度韧性较好,微藻在膜上附着生长迅速,其生长量与膜表面粗糙度、带电荷量等表面参数呈正相关。其研究结果为寻求和制备具有潜质的微藻培养贴壁材料提供了新思路和新方法。

    Abstract:

    A series of cationic acrylate latex were prepared with n-butyl acrylate (BA), methyl methacrylate (MMA), acrylamide (AM), methacryloyloxyethyl-trimethyl ammonium chloride (DMC) as monomer and the influences of stirring speed, monomers ratio, amount of emulsifier and initiator on the latex polymerization were studied. Results show that, when the stirring speed is 400 r/min, m(BA)∶m(MMA)=30∶70, the mass fractions of OP-10 and AIBI are 4.5% and 1% of the monomer respectively, the obtained emulsion system is stable and the films formed from the emulsion are excellent. Besides, the properties of cationic acrylate films on microalgae cultivation were investigated. Results show that films remain intact in microalgae culture medium after 10 d of culture, and the strength and toughness of film also keep well. The microalgae could grow rapidly attached to the surface of film and the microalgae biomass is positively correlated with the film surface parameters, such as the roughness and amount of charge. The above results provide a new idea and method for finding and preparing the films using in microalgae cultivation, it would be helpful in the design of novel copolymer for a potential adherence material to cultivating microalgae.

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张筱毓,陈 曦,王 勇,宫瑞英,刘天中.阳离子丙烯酸酯膜的制备及在微藻培养中的应用[J].高分子材料科学与工程,2020,36(7):140-148.

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  • 在线发布日期: 2020-09-08
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