合成技术及应用
閤成技術及應用
합성기술급응용
SYNTHETIC TECHNOLOGY AND APPLICATION
2011年
4期
4-6
,共3页
李冬红%高卫光%范永将%李彤霞
李鼕紅%高衛光%範永將%李彤霞
리동홍%고위광%범영장%리동하
丁苯胶乳乳%液聚合%固体沥青%阴离子乳化剂
丁苯膠乳乳%液聚閤%固體瀝青%陰離子乳化劑
정분효유유%액취합%고체력청%음리자유화제
styrene-butadiene latex%emulsion polymerization%asphalt%modification%anion emulsifier
以丁二烯和苯乙烯为单体,采用阴离子乳化体系,在过氧化物与亚铁盐构成的氧化还原引发体系作用下,合成了性能良好的固体沥青改性用丁苯胶乳,讨论了影响聚合过程及胶乳性能的因素。结果表明,单体配比、乳化剂浓度、引发剂浓度、分子质量调节剂用量及聚合温度是控制丁苯胶乳性能的关键因素,分批加入乳化剂及梯度控温有利于控制胶乳门尼粘度和结构凝胶含量。
以丁二烯和苯乙烯為單體,採用陰離子乳化體繫,在過氧化物與亞鐵鹽構成的氧化還原引髮體繫作用下,閤成瞭性能良好的固體瀝青改性用丁苯膠乳,討論瞭影響聚閤過程及膠乳性能的因素。結果錶明,單體配比、乳化劑濃度、引髮劑濃度、分子質量調節劑用量及聚閤溫度是控製丁苯膠乳性能的關鍵因素,分批加入乳化劑及梯度控溫有利于控製膠乳門尼粘度和結構凝膠含量。
이정이희화분을희위단체,채용음리자유화체계,재과양화물여아철염구성적양화환원인발체계작용하,합성료성능량호적고체력청개성용정분효유,토론료영향취합과정급효유성능적인소。결과표명,단체배비、유화제농도、인발제농도、분자질량조절제용량급취합온도시공제정분효유성능적관건인소,분비가입유화제급제도공온유리우공제효유문니점도화결구응효함량。
The SBR latex for emulsified asphalt was synthesized via using a complex anion emulsifier, together with peroxide and ferrous salt as the initiation system. Influencing factors of polymerization process and latex performance were discussed. The results showed that monomer ratio, emulsifier amount, initiator amount, polymerization temperature, molecular weight regulator amount and addition way were the main influence factors on latex performance. Using emulsifier added in batches and gradient temperature control improved Mooney viscosity and structure gel content.