CN106190491A - 一种混凝土浇筑用建筑模板脱模剂 - Google Patents
一种混凝土浇筑用建筑模板脱模剂 Download PDFInfo
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Abstract
本发明公开了一种混凝土浇筑用建筑模板脱模剂,涉及脱模剂生产技术领域,由如下重量份数的原料制成:改性硅油40‑45份、聚氧化丙烯二醇200015‑20份、C9石油树脂8‑12份、火山灰6‑10份、海泡石粉5‑8份、乙烯‑四氟乙烯共聚物5‑8份、甲苯二异氰酸酯4‑6份、菜籽饼3‑5份、油酸聚氧乙烯酯2‑3份、纳米氧化铝2‑3份、玻璃纤维粉2‑3份、三正丁基甲氧基锡1‑2份、硫酸化蓖麻油1‑2份、醋酸丁酯10‑15份、正丁醇10‑15份。本发明脱模剂能显著提高混凝土的脱模效果,防止脱模时混凝土粘附在模板上,以保护模板和混凝土表面结构;同时不会对模板产生任何腐蚀作用,从而充分延长模板的使用寿命。
Description
技术领域:
本发明涉及脱模剂生产技术领域,具体涉及一种混凝土浇筑用建筑模板脱模剂。
背景技术:
混凝土成型需借助建筑模板来固定,待混凝土形成一定强度后需要拆除模板。为了防止模板拆除过程中混凝土粘连在模板上,给模板的再使用增加处理难度,通常会在模板内壁喷涂脱模剂。脱模剂在模板与混凝土表面之间起隔离与润滑作用,用以克服模板与混凝土表面的粘结力,使拆模时模板能顺利脱离混凝土,既保持混凝土形状完好无损,又保护模板表面不受损坏。
传统建筑模板脱模剂以废机油、地沟油和大豆油为主,虽然成本低,但脱模效果一般。目前,随着人们对脱模剂的深入研究,有机硅高分子树脂乳液分散体系类产品应运而生,但其使用成本高,并且在合成过程中产生的废弃物存在一定环保问题。另外,部分脱模剂虽然脱模效果好,但存在易产生气孔、粉化和腐蚀模板的缺陷。
发明内容:
本发明所要解决的技术问题在于提供一种使用方便、脱模效果好且不会产生腐蚀现象的混凝土浇筑用建筑模板脱模剂。
本发明所要解决的技术问题采用以下的技术方案来实现:
一种混凝土浇筑用建筑模板脱模剂,由如下重量份数的原料制成:
改性硅油40-45份、聚氧化丙烯二醇200015-20份、C9石油树脂8-12份、火山灰6-10份、海泡石粉5-8份、乙烯-四氟乙烯共聚物5-8份、甲苯二异氰酸酯4-6份、菜籽饼3-5份、油酸聚氧乙烯酯2-3份、纳米氧化铝2-3份、玻璃纤维粉2-3份、三正丁基甲氧基锡1-2份、硫酸化蓖麻油1-2份、醋酸丁酯10-15份、正丁醇10-15份;
所述改性硅油的制备方法为:向40-50份二甲基硅油中加入6-9份氢化松香和3-5份巴西棕榈蜡,加热至完全熔化后保温混合10min,并于微波频率2450MHz、功率700W下微波处理10min,再转入室温下静置1h,然后继续微波处理5min,处理结束后趁热加入2-3份鲸蜡醇和1-2份纳米钛白粉,充分混合后于超声频率40kHz、功率100W下超声处理30min,待混合物自然冷却至30-35℃后转入0-5℃环境中,静置12h,即得改性硅油。
其制备方法包括如下步骤:
(1)将聚氧化丙烯二醇2000于100-105℃下干燥3h,干燥结束后自然冷却至60-65℃加入甲苯二异氰酸酯和三正丁基甲氧基锡,保温搅拌30min后继续加热至70-75℃,并于70-75℃保温搅拌15min,然后再继续加热至80-85℃保温搅拌2h,即得物料I;
(2)向C9石油树脂中加入乙烯-四氟乙烯共聚物、纳米氧化铝和硫酸化蓖麻油,充分混合后加热至100-105℃保温混合10min,再自然冷却至65-70℃,然后继续加热至135-140℃保温混合10min,即得物料II;
(3)向改性硅油中加入火山灰和海泡石粉,充分混合后于0-5℃静置2h,再加入菜籽饼和玻璃纤维粉,然后加热至95-100℃保温混合10min,即得物料III;
(4)向物料I中加入物料II和物料III,充分混合后于微波频率2450MHz、功率700W下微波处理10min,然后自然冷却至70-75℃,再加入油酸聚氧乙烯酯、醋酸丁酯和正丁醇,充分混合均匀。
所述火山灰使用前经过预处理,其处理方法为:将30-40份火山灰加入等量水中,充分混合后送入砂磨机中,砂磨至细度小于10um,再加入10-15份凹凸棒土和2-4份纳米氧化锌,充分混合后继续球磨5-8h,然后将混合物送入喷雾干燥机,所得颗粒最后经粉碎机制成粉末。
二甲基硅油通过改性处理,不仅能增强其成膜性,还能提高耐腐蚀性、耐水性和耐候性,从而提高脱模剂的使用性能。
火山灰经过预处理,显著增强其填充性,添加于脱模剂后能增加脱模剂成膜后的韧性和耐高温性,从而进一步提高脱模剂的使用性能。
本发明的有益效果是:本发明以改性硅油为主要原料,辅以多种助剂制得混凝土浇筑用建筑模板脱模剂,该脱模剂使用方便,喷涂于建筑模板后能够形成一层隔离膜,提高混凝土的脱模效果,防止脱模时混凝土粘附在模板上,以保护模板和混凝土表面结构;同时不会对模板产生任何腐蚀作用,从而充分延长模板的使用寿命。
具体实施方式:
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体实施例,进一步阐述本发明。
实施例1
(1)将15份聚氧化丙烯二醇2000于100-105℃下干燥3h,干燥结束后自然冷却至60-65℃加入4份甲苯二异氰酸酯和1份三正丁基甲氧基锡,保温搅拌30min后继续加热至70-75℃,并于70-75℃保温搅拌15min,然后再继续加热至80-85℃保温搅拌2h,即得物料I;
(2)向8份C9石油树脂中加入5份乙烯-四氟乙烯共聚物、2份纳米氧化铝和1份硫酸化蓖麻油,充分混合后加热至100-105℃保温混合10min,再自然冷却至65-70℃,然后继续加热至135-140℃保温混合10min,即得物料II;
(3)向40份改性硅油中加入6份火山灰和8份海泡石粉,充分混合后于0-5℃静置2h,再加入3份菜籽饼和2份玻璃纤维粉,然后加热至95-100℃保温混合10min,即得物料III;
(4)向物料I中加入物料II和物料III,充分混合后于微波频率2450MHz、功率700W下微波处理10min,然后自然冷却至70-75℃,再加入2份油酸聚氧乙烯酯、15份醋酸丁酯和10份正丁醇,充分混合均匀。
改性硅油的制备:向45份二甲基硅油中加入6份氢化松香和3份巴西棕榈蜡,加热至完全熔化后保温混合10min,并于微波频率2450MHz、功率700W下微波处理10min,再转入室温下静置1h,然后继续微波处理5min,处理结束后趁热加入2份鲸蜡醇和1份纳米钛白粉,充分混合后于超声频率40kHz、功率100W下超声处理30min,待混合物自然冷却至30-35℃后转入0-5℃环境中,静置12h,即得改性硅油。
火山灰的预处理:将40份火山灰加入等量水中,充分混合后送入砂磨机中,砂磨至细度小于10um,再加入15份凹凸棒土和3份纳米氧化锌,充分混合后继续球磨8h,然后将混合物送入喷雾干燥机,所得颗粒最后经粉碎机制成粉末。
实施例2
(1)将20份聚氧化丙烯二醇2000于100-105℃下干燥3h,干燥结束后自然冷却至60-65℃加入5份甲苯二异氰酸酯和1份三正丁基甲氧基锡,保温搅拌30min后继续加热至70-75℃,并于70-75℃保温搅拌15min,然后再继续加热至80-85℃保温搅拌2h,即得物料I;
(2)向10份C9石油树脂中加入5份乙烯-四氟乙烯共聚物、2份纳米氧化铝和1份硫酸化蓖麻油,充分混合后加热至100-105℃保温混合10min,再自然冷却至65-70℃,然后继续加热至135-140℃保温混合10min,即得物料II;
(3)向40份改性硅油中加入8份火山灰和5份海泡石粉,充分混合后于0-5℃静置2h,再加入4份菜籽饼和2份玻璃纤维粉,然后加热至95-100℃保温混合10min,即得物料III;
(4)向物料I中加入物料II和物料III,充分混合后于微波频率2450MHz、功率700W下微波处理10min,然后自然冷却至70-75℃,再加入3份油酸聚氧乙烯酯、10份醋酸丁酯和15份正丁醇,充分混合均匀。
改性硅油的制备:向45份二甲基硅油中加入8份氢化松香和3份巴西棕榈蜡,加热至完全熔化后保温混合10min,并于微波频率2450MHz、功率700W下微波处理10min,再转入室温下静置1h,然后继续微波处理5min,处理结束后趁热加入2份鲸蜡醇和1份纳米钛白粉,充分混合后于超声频率40kHz、功率100W下超声处理30min,待混合物自然冷却至30-35℃后转入0-5℃环境中,静置12h,即得改性硅油。
火山灰的预处理:将40份火山灰加入等量水中,充分混合后送入砂磨机中,砂磨至细度小于10um,再加入10份凹凸棒土和3份纳米氧化锌,充分混合后继续球磨8h,然后将混合物送入喷雾干燥机,所得颗粒最后经粉碎机制成粉末。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。
Claims (3)
1.一种混凝土浇筑用建筑模板脱模剂,其特征在于,由如下重量份数的原料制成:
改性硅油40-45份、聚氧化丙烯二醇2000 15-20份、C9石油树脂8-12份、火山灰6-10份、海泡石粉5-8份、乙烯-四氟乙烯共聚物5-8份、甲苯二异氰酸酯4-6份、菜籽饼3-5份、油酸聚氧乙烯酯2-3份、纳米氧化铝2-3份、玻璃纤维粉2-3份、三正丁基甲氧基锡1-2份、硫酸化蓖麻油1-2份、醋酸丁酯10-15份、正丁醇10-15份;
所述改性硅油的制备方法为:向40-50份二甲基硅油中加入6-9份氢化松香和3-5份巴西棕榈蜡,加热至完全熔化后保温混合10min,并于微波频率2450MHz、功率700W下微波处理10min,再转入室温下静置1h,然后继续微波处理5min,处理结束后趁热加入2-3份鲸蜡醇和1-2份纳米钛白粉,充分混合后于超声频率40kHz、功率100W下超声处理30min,待混合物自然冷却至30-35℃后转入0-5℃环境中,静置12h,即得改性硅油。
2.根据权利要求1所述的混凝土浇筑用建筑模板脱模剂,其特征在于,其制备方法包括如下步骤:
(1)将聚氧化丙烯二醇2000于100-105℃下干燥3h,干燥结束后自然冷却至60-65℃加入甲苯二异氰酸酯和三正丁基甲氧基锡,保温搅拌30min后继续加热至70-75℃,并于70-75℃保温搅拌15min,然后再继续加热至80-85℃保温搅拌2h,即得物料I;
(2)向C9石油树脂中加入乙烯-四氟乙烯共聚物、纳米氧化铝和硫酸化蓖麻油,充分混合后加热至100-105℃保温混合10min,再自然冷却至65-70℃,然后继续加热至135-140℃保温混合10min,即得物料II;
(3)向改性硅油中加入火山灰和海泡石粉,充分混合后于0-5℃静置2h,再加入菜籽饼和玻璃纤维粉,然后加热至95-100℃保温混合10min,即得物料III;
(4)向物料I中加入物料II和物料III,充分混合后于微波频率2450MHz、功率700W下微波处理10min,然后自然冷却至70-75℃,再加入油酸聚氧乙烯酯、醋酸丁酯和正丁醇,充分混合均匀。
3.根据权利要求1或2所述的混凝土浇筑用建筑模板脱模剂,其特征在于,所述火山灰使用前经过预处理,其处理方法为:将30-40份火山灰加入等量水中,充分混合后送入砂磨机中,砂磨至细度小于10um,再加入10-15份凹凸棒土和2-4份纳米氧化锌,充分混合后继续球磨5-8h,然后将混合物送入喷雾干燥机,所得颗粒最后经粉碎机制成粉末。
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