CAJ | 학술논문

以十二烷基硫酸钠（ SDS）和OP-10为复合乳化剂，丙烯酸丁酯（ BA）、甲基丙烯酸甲酯（ MMA）、甲基丙烯酸十二氟庚酯（ FA）为主要原料，采用预乳化半连续种子聚合法制备具有核壳结构的高抗水性丙烯酸共聚乳液。利用红外光谱、扫描电子显微镜、透射电子显微镜、接触角仪等对乳液及浸渍滤纸进行了表征；同时，讨论了核壳单体配比、乳化剂用量、引发剂用量以及含氟单体用量对反应与浸渍滤纸耐水性能的影响。结果表明，优化反应条件后，硬单体MMA配以适量FA单体为壳，制备的共聚乳液稳定性好，粒度均匀，具有明显球状和核壳结构。乳胶膜表面能随着含氟量的增加大幅度降低，当氟单体含量为16.3%时，其表面能降至19.9 mN/m。利用功能氟单体包覆于核层外表，当氟单体含量为4.7%时，原乳胶表面能从37.7 mN/m降至24.6 mN/m，所浸渍滤纸耐水性能明显优于不含氟乳液浸渍滤纸，达到“低氟高效”的效果。
이십이완기류산납（ SDS）화OP-10위복합유화제，병희산정지（ BA）、갑기병희산갑지（ MMA）、갑기병희산십이불경지（ FA）위주요원료，채용예유화반련속충자취합법제비구유핵각결구적고항수성병희산공취유액。이용홍외광보、소묘전자현미경、투사전자현미경、접촉각의등대유액급침지려지진행료표정；동시，토론료핵각단체배비、유화제용량、인발제용량이급함불단체용량대반응여침지려지내수성능적영향。결과표명，우화반응조건후，경단체MMA배이괄량FA단체위각，제비적공취유액은정성호，립도균균，구유명현구상화핵각결구。유효막표면능수착함불량적증가대폭도강저，당불단체함량위16.3%시，기표면능강지19.9 mN/m。이용공능불단체포복우핵층외표，당불단체함량위4.7%시，원유효표면능종37.7 mN/m강지24.6 mN/m，소침지려지내수성능명현우우불함불유액침지려지，체도“저불고효”적효과。
The acrylate copolymer emulsion with core-shell structure was prepared via pre-emulsified semi-continuous seeded polymerization using SDS and OP-10 as compound emulsifier,and methyl methyl-acrylate( MMA),butyl acrylate( BA)and dodecafluoroheptyl methacrylate( DFMA)as main monomers. FTIR,SEM,TEM and CA were used to characterize the structure and properties of the product,mean-while,the influence of core-shell monomer ratio,the dosage of emulsifier,initiator and fluoride monomers on the reacting product and the water resistance of impregnated filter paper were studied. The results indi-cated that the product had good stability,uniform particle size and a structure of obvious ball and core-shell when the hard monomer MMA matched with a moderate amount of DFMA as the shell in an opti-mized reaction condition. The increase in fluoride monomer resulted in the reduction of surface energy of the copolymer films greatly. The surface free energy of copolymer film could be reduced up to 19. 9 mN/m when the DFMA content was 16 . 3%. With the fluorine monomer coated on the core part ,the surface free energy of copolymer film decreased from 37 . 7 mN/m to 24 . 6 mN/m when the DFMA content was only added to 4 . 7% and the water resistance of filter paper impregnated by the fluorine-containing emulsion was evidently superior to that of fluoride-free emulsion,thus the effect of“low fluorine high efficiency”was achieved ultimately.