CN107011974A - 一种混凝土脱模剂及其制备方法 - Google Patents
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Abstract
本发明涉及一种混凝土脱模剂,该脱模剂是由下述重量份的原料制成:脱色废白油40~70份、溴化地沟油15~35份、硅油10~20份、消泡剂1~3份、乳化剂0.5~5份、防腐剂0.5~3份。本发明还公开了该脱模剂的制备方法。本发明不但环保节能无污染,对储存温度要求低、储存便利、储存时间长、且配方合理易于加工、成本低廉、工作性能良好。
Description
技术领域
本发明涉及混凝土技术领域,尤其涉及一种混凝土脱模剂及其制备方法。
背景技术
混凝土的脱模剂是一种喷涂(刷涂)在模板(具)的工作面,用于减小混凝土与模板(具)粘着力使二者易于分开,且不损坏混凝土能够使混凝土表面完好无气泡,模板(具)光滑干净的材料。随着经济的高速发展,混凝土的应用发展迈入了一个新时代,人们除了对混凝土的性能要求越来越高外,,对混凝土结构的表面质量也越来越高。而混凝土表面的气孔不仅仅影响结构物表面的美观,而且也影响结构物的强度与耐久性能。
发明内容
本发明所要解决的技术问题是提供一种对储存温度要求低、储存便利、储存时间长、且成本低廉、工作性能良好的混凝土脱模剂。
本发明所要解决的另一个技术问题是提供该混凝土脱模剂的制备方法。
为解决上述问题,本发明所述的一种混凝土脱模剂,其特征在于:该脱模剂是由下述重量份的原料制成:脱色废白油40~70份、溴化地沟油15~35份、硅油10~20份、消泡剂1~3份、乳化剂0.5~5份、防腐剂0.5~3份。
所述脱色废白油是指将废白油加入反应釜中,采用体积比为1:1的硫酸来调节油品的pH值至4~5,并缓慢加热至55~70℃,然后加入活性白土脱色,在55~70℃恒温0.5~1.5h后降温至35℃以下,最后通过玻璃纤维布网过滤去除杂质即得。
所述溴化地沟油是指将地沟油加入反应釜中,采用体积比为1:1的硫酸来调节油品的pH值至4~5,并缓慢加热至65~85℃,然后加入活性白土脱色,在65~85℃恒温0.5~1.5h后降温至35℃以下,最后通过玻璃纤维布网过滤去除杂质,经溴化反应即得。
所述硅油是指二甲基硅油,其粘度为50。
所述消泡剂是指7501或XH-1。
所述乳化剂是指OP-10、Span40按1:1的重量比混合而制成的。
所述防腐剂是指苯甲酸、亚硝酸钠按2:1的重量比混合而制成的。
如上所述的一种混凝土脱模剂的制备方法,其特征在于:首先按配比称重;然后将脱色废白油、溴化地沟油置于反应釜中,边搅拌边加热,当温度为50~65℃时加入硅油,并在该温度下恒温搅拌30min后冷却;当温度为30~40℃时加入乳化剂,并以2000~2500r/min的速率高速搅拌15min ;最后冷却至室温后依次加入消泡剂、防腐剂,经搅拌至溶液均一即得。
本发明与现有技术相比具有以下优点:
1、本发明对废白油及溴化地沟油均进行了去色处理,产品为淡乳白或无色透明液体,对混凝土结构物外观不产生任何影响。
2、本发明中添加有专用消泡剂,对混凝土结构物外观无气泡、蜂窝麻面,表面光滑致密奠定了良好的基础。
3、本发明中添加有乳化剂和防腐剂,有利于产品性能稳定,不分层、不变质,利于储存。
4、本发明原材料属资源综合利用范畴,不仅符合国家产业政策,也符合社会发展趋势,材料易得、配方合理且易于加工,不但环保节能无污染,而且成本低廉,具有良好的社会效益和经济效益。
具体实施方式
实施例1一种混凝土脱模剂,该脱模剂是由下述重量份(kg)的原料制成:脱色废白油40份、溴化地沟油35份、硅油19份、消泡剂2份、乳化剂1.5份、防腐剂2.5份。
其中:脱色废白油是指将废白油加入反应釜中,采用体积比为1:1的硫酸来调节油品的pH值至4~5,并缓慢加热至55~70℃,然后加入活性白土脱色,在55~70℃恒温0.5~1.5h后降温至35℃以下,最后通过玻璃纤维布网(可根据精细要求设置滤层数)过滤去除杂质即得。
溴化地沟油是指将地沟油加入反应釜中,采用体积比为1:1的硫酸来调节油品的pH值至4~5,并缓慢加热至65~85℃,然后加入活性白土脱色,在65~85℃恒温0.5~1.5h后降温至35℃以下,最后通过玻璃纤维布网(可根据精细要求设置滤层数)过滤去除杂质。由于地沟油的主要成分为甘油三脂,其含有很活泼的羟基-OH,可与HBr反应制得溴化物。具体溴化过程为将地沟油置于反应釜中,按地沟油质量的1‰滴加催化剂浓H2SO4,加热至100~110℃后,将HBr通到反应釜中,恒温1h~1.5h,经溴化反应即可得性能稳定,略带香味的溴化地沟油。
硅油是指二甲基硅油,其粘度为50。
消泡剂是指7501。
乳化剂是指OP-10、Span40按1:1的重量比(kg/kg)混合而制成的。
防腐剂是指苯甲酸、亚硝酸钠按2:1的重量比(kg/kg)混合而制成的。
该混凝土脱模剂的制备方法是指:首先按配比称重;然后将废白油、溴化地沟油置于反应釜中,边搅拌边加热,当温度为50~65℃时加入硅油,并在该温度下恒温搅拌30min后冷却;当温度为30~40℃时加入乳化剂,并以2000~2500r/min的速率高速搅拌15min ;最后冷却至室温后依次加入消泡剂、防腐剂,经搅拌至溶液均一即得。
实施例2一种混凝土脱模剂,该脱模剂是由下述重量份(kg)的原料制成:脱色废白油55份、溴化地沟油25份、硅油15份、消泡剂3份、乳化剂1份、防腐剂1份。
其中:脱色废白油、溴化地沟油、硅油、乳化剂、防腐剂同实施例1。
消泡剂是指7501。
该混凝土脱模剂的制备方法同实施例1。
实施例3一种混凝土脱模剂,该脱模剂是由下述重量份(kg)的原料制成:脱色废白油60份、溴化地沟油25份、硅油10份、消泡剂2份、乳化剂2份、防腐剂1份。
其中:脱色废白油、溴化地沟油、硅油、乳化剂、防腐剂同实施例1。
消泡剂是指XH-1。
该混凝土脱模剂的制备方法同实施例1。
实施例4一种混凝土脱模剂,该脱模剂是由下述重量份(kg)的原料制成:脱色废白油65份、溴化地沟油19份、硅油12份、消泡剂3份、乳化剂0.5份、防腐剂0.5份。
其中:脱色废白油、溴化地沟油、硅油、乳化剂、防腐剂同实施例1。
消泡剂是指XH-1。
该混凝土脱模剂的制备方法同实施例1。
实施例5一种混凝土脱模剂,该脱模剂是由下述重量份(kg)的原料制成:脱色废白油70份、溴化地沟油17份、硅油10份、消泡剂1份、乳化剂1份、防腐剂1份。
其中:脱色废白油、溴化地沟油、硅油、乳化剂、防腐剂同实施例1。
消泡剂是指7501。
该混凝土脱模剂的制备方法同实施例1。
实施例6一种混凝土脱模剂,该脱模剂是由下述重量份(kg)的原料制成:脱色废白油56份、溴化地沟油15份、硅油20份、消泡剂3份、乳化剂5份、防腐剂1份。
其中:脱色废白油、溴化地沟油、硅油、乳化剂、防腐剂同实施例1。
消泡剂是指7501。
该混凝土脱模剂的制备方法同实施例1。
实施例7一种混凝土脱模剂,该脱模剂是由下述重量份(kg)的原料制成:脱色废白油45份、溴化地沟油33份、硅油14份、消泡剂2份、乳化剂3份、防腐剂3份。
其中:脱色废白油、溴化地沟油、硅油、乳化剂、防腐剂同实施例1。
消泡剂是指XH-1。
该混凝土脱模剂的制备方法同实施例1。
Claims (8)
1.一种混凝土脱模剂,其特征在于:该脱模剂是由下述重量份的原料制成:脱色废白油40~70份、溴化地沟油15~35份、硅油10~20份、消泡剂1~3份、乳化剂0.5~5份、防腐剂0.5~3份。
2.如权利要求1所述的一种混凝土脱模剂,其特征在于:所述脱色废白油是指将废白油加入反应釜中,采用体积比为1:1的硫酸来调节油品的pH值至4~5,并缓慢加热至55~70℃,然后加入活性白土脱色,在55~70℃恒温0.5~1.5h后降温至35℃以下,最后通过玻璃纤维布网过滤去除杂质即得。
3.如权利要求1所述的一种混凝土脱模剂,其特征在于:所述溴化地沟油是指将地沟油加入反应釜中,采用体积比为1:1的硫酸来调节油品的pH值至4~5,并缓慢加热至65~85℃,然后加入活性白土脱色,在65~85℃恒温0.5~1.5h后降温至35℃以下,最后通过玻璃纤维布网过滤去除杂质,经溴化反应即得。
4.如权利要求1所述的一种混凝土脱模剂,其特征在于:所述硅油是指二甲基硅油,其粘度为50。
5.如权利要求1所述的一种混凝土脱模剂,其特征在于:所述消泡剂是指7501或XH-1。
6.如权利要求1所述的一种混凝土脱模剂,其特征在于:所述乳化剂是指OP-10、Span40按1:1的重量比混合而制成的。
7.如权利要求1所述的一种混凝土脱模剂,其特征在于:所述防腐剂是指苯甲酸、亚硝酸钠按2:1的重量比混合而制成的。
8.如权利要求1所述的一种混凝土脱模剂的制备方法,其特征在于:首先按配比称重;然后将脱色废白油、溴化地沟油置于反应釜中,边搅拌边加热,当温度为50~65℃时加入硅油,并在该温度下恒温搅拌30min后冷却;当温度为30~40℃时加入乳化剂,并以2000~2500r/min的速率高速搅拌15min ;最后冷却至室温后依次加入消泡剂、防腐剂,经搅拌至溶液均一即得。
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