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    • 3. 发明公开
    • 초속경 개질 콘크리트 제조용 스티렌-부타디엔 공중합체 라텍스의 제조방법
    • 苯乙烯 - 丁二烯的制造方法用于非常早期的改性混凝土
    • KR1020110070079A
    • 2011-06-24
    • KR1020090126757
    • 2009-12-18
    • 금호석유화학 주식회사
    • 김성남양건호나상진김영상
    • C08F236/10C08F212/08C08L9/08C04B24/24
    • C08F236/10C04B24/24C08F2/24C08F2/38C08F279/06C08L9/08
    • PURPOSE: A method for manufacturing styrene-butadiene latex for very early strength modified concrete is provided to prepare latex-modified concrete with improved strength, slump, and air volume. CONSTITUTION: A method for manufacturing styrene-butadiene latex for very early strength modified concrete comprises the steps of: injecting, based on 100 parts by weight of water, 5 ~ 10 parts by weight of butadiene monomer, 10 ~ 15 parts by weight of styrene monomer, 0.3 ~ 0.8 parts by weight of rosin salts as an emulsifier, 0.5 ~ 1.0 parts by weight of potassium persulfate, 0.7 ~ 1.2 parts by weight of t-dodecylmercaptan, and 0.1 ~ 1.0 parts by weight of sodium bisulfate, and initiating the polymerization at 40 ~ 60°C; and injecting, based on 100 parts by weight of water, 25 ~ 30 parts by weight of a butadiene monomer, 0 ~ 55 parts by weight of styrene monomer, 0.5 ~ 1.0 parts by weight of rosin salts as an emulsifier, 3.0 ~ 10.0 parts by weight of polyoxyethylenealkylether-based non-ionic emulsifier, 0.7 ~ 1.2 parts by weight of tertiarydodecylmercaptan, 0.5 ~ 4.5 parts by weight of acide monoer mixture of acrylic acid, methacrylic acid, ethacrylic acid, butacrylic acid, itaconic acid, and fumaric acid, and 0.2 ~ 1.0 parts by weight of antifoaming agent, and polymerizing the mixture at 40 ~ 80°C.
    • 目的:提供一种制造用于非常早期强度改性混凝土的苯乙烯 - 丁二烯胶乳的方法,以制备具有改进的强度,坍落度和风量的胶乳改性混凝土。 构成:用于制造非常早期强度改性混凝土的苯乙烯 - 丁二烯胶乳的方法包括以下步骤:以100重量份的水,5〜10重量份的丁二烯单体,10〜15重量份的苯乙烯 单体,0.3〜0.8重量份作为乳化剂的松香盐,0.5〜1.0重量份过硫酸钾,0.7〜1.2重量份叔十二烷基硫醇和0.1〜1.0重量份硫酸氢钠,并引发 在40〜60℃聚合; 以100重量份的水为基准注入25〜30重量份丁二烯单体,0〜55重量份苯乙烯单体,0.5〜1.0重量份作为乳化剂的松香盐,3.0〜10.0份 的聚氧乙烯烷基醚系非离子乳化剂,0.7〜1.2重量份的叔十二烷基硫醇,0.5〜4.5重量份的丙烯酸,甲基丙烯酸,乙基丙烯酸,丁基丙烯酸,衣康酸和富马酸的酰亚胺混合物, 和0.2〜1.0重量份的消泡剂,并在40〜80℃下使混合物聚合。