CN106221872A - 一种含有聚丙烯改性硅油的建筑模板脱模剂 - Google Patents

一种含有聚丙烯改性硅油的建筑模板脱模剂 Download PDF

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CN106221872A
CN106221872A CN201610559548.9A CN201610559548A CN106221872A CN 106221872 A CN106221872 A CN 106221872A CN 201610559548 A CN201610559548 A CN 201610559548A CN 106221872 A CN106221872 A CN 106221872A
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silicone oil
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form removal
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陈建宇
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Dongzhi Oasis Environmental Protection Chemical Co Ltd
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Abstract

本发明公开了一种含有聚丙烯改性硅油的建筑模板脱模剂，涉及脱模剂生产技术领域，由如下重量份数的原料制成：乳化硅油25‑30份、接枝共聚聚丙烯10‑15份、火山灰10‑15份、氢化松香8‑12份、活性白土6‑10份、线性低密度聚乙烯5‑8份、羟丙基甲基纤维素4‑6份、蓖麻油3‑5份、山梨醇酐油酸酯3‑5份、聚丙烯酰胺2‑3份、尿素2‑3份、纳米氧化铝1‑2份、锌粉0.5‑1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，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

一种含有聚丙烯改性硅油的建筑模板脱模剂
技术领域：
本发明涉及脱模剂生产技术领域，具体涉及一种含有聚丙烯改性硅油的建筑模板脱模剂。
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含有聚丙烯改性硅油的建筑模板脱模剂。
本发明所要解决的技术问题采用以下的技术方案来实现：
一种含有聚丙烯改性硅油的建筑模板脱模剂，由如下重量份数的原料制成：乳化硅油25-30份、接枝共聚聚丙烯10-15份、火山灰10-15份、氢化松香8-12份、活性白土6-10份、线性低密度聚乙烯5-8份、羟丙基甲基纤维素4-6份、蓖麻油3-5份、山梨醇酐油酸酯3-5份、聚丙烯酰胺2-3份、尿素2-3份、纳米氧化铝1-2份、锌粉0.5-1份、醋酸丁酯10-15份、正丁醇10-15份；
所述接枝共聚聚丙烯的制备方法为：将35-40份聚丙烯、8-11份马来酸酐和5-8份聚乙烯醇加入80-100份环己烷中，并加热至回流状态保温搅拌10min，再加入1-2份过硫酸铵和0.5-1份亚硫酸氢钠，继续回流保温搅拌30min，然后加入10-15份陶瓷微粉和4-7份聚乙二醇400，充分混合后于0-5℃下静置1h，最后于微波频率2450MHz、功率700W下微波处理10min，所得混合物于45-50℃真空浓缩至无馏分产生，剩余物即为接枝共聚聚丙烯。
其制备方法包括如下步骤：
(1)向乳化硅油中加入接枝共聚聚丙烯和纳米氧化铝，充分混合后加热至100-105℃保温混合10min，再自然冷却至55-60℃，然后继续加热至130-135℃保温混合10min，即得物料I；
(2)向氢化松香中加入线性低密度聚乙烯和聚丙烯酰胺，加热至75-80℃保温混合5min，再加热至115-120℃保温混合10min，即得物料II；
(3)向物料I中加入物料II、火山灰和活性白土，充分混合后加热至100-105℃静置保温10min，再加入蓖麻油、山梨醇酐油酸酯和锌粉，混合均匀后于微波频率2450MHz、功率700W下微波处理10min，所得混合物自然冷却至室温，最后加入羟丙基甲基纤维素、尿素、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。
本发明的有益效果是：本发明以乳化硅油为主要原料，辅以接枝共聚聚丙烯对乳化硅油进行改性，并与多种助剂协同制得建筑模板脱模剂，该脱模剂使用方便，喷涂于建筑模板后能够形成一层致密而坚硬的隔离膜，提高混凝土的脱模效果，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)向30份乳化硅油中加入10份接枝共聚聚丙烯和1份纳米氧化铝，充分混合后加热至100-105℃保温混合10min，再自然冷却至55-60℃，然后继续加热至130-135℃保温混合10min，即得物料I；
(2)向8份氢化松香中加入5份线性低密度聚乙烯和3份聚丙烯酰胺，加热至75-80℃保温混合5min，再加热至115-120℃保温混合10min，即得物料II；
(3)向物料I中加入物料II、10份火山灰和8份活性白土，充分混合后加热至100-105℃静置保温10min，再加入3份蓖麻油、3份山梨醇酐油酸酯和0.5份锌粉，混合均匀后于微波频率2450MHz、功率700W下微波处理10min，所得混合物自然冷却至室温，最后加入4份羟丙基甲基纤维素、2份尿素、10份醋酸丁酯和15份正丁醇，充分混合均匀。
接枝共聚聚丙烯的制备：将35份聚丙烯、8份马来酸酐和5份聚乙烯醇加入80份环己烷中，并加热至回流状态保温搅拌10min，再加入1份过硫酸铵和0.5份亚硫酸氢钠，继续回流保温搅拌30min，然后加入10份陶瓷微粉和5份聚乙二醇400，充分混合后于0-5℃下静置1h，最后于微波频率2450MHz、功率700W下微波处理10min，所得混合物于45-50℃真空浓缩至无馏分产生，剩余物即为接枝共聚聚丙烯。
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)向30份乳化硅油中加入12份接枝共聚聚丙烯和1份纳米氧化铝，充分混合后加热至100-105℃保温混合10min，再自然冷却至55-60℃，然后继续加热至130-135℃保温混合10min，即得物料I；
(2)向10份氢化松香中加入5份线性低密度聚乙烯和2份聚丙烯酰胺，加热至75-80℃保温混合5min，再加热至115-120℃保温混合10min，即得物料II；
(3)向物料I中加入物料II、15份火山灰和6份活性白土，充分混合后加热至100-105℃静置保温10min，再加入5份蓖麻油、3份山梨醇酐油酸酯和0.5份锌粉，混合均匀后于微波频率2450MHz、功率700W下微波处理10min，所得混合物自然冷却至室温，最后加入5份羟丙基甲基纤维素、2份尿素、15份醋酸丁酯和10份正丁醇，充分混合均匀。
接枝共聚聚丙烯的制备：将40份聚丙烯、10份马来酸酐和5份聚乙烯醇加入80份环己烷中，并加热至回流状态保温搅拌10min，再加入1份过硫酸铵和0.5份亚硫酸氢钠，继续回流保温搅拌30min，然后加入12份陶瓷微粉和4份聚乙二醇400，充分混合后于0-5℃下静置1h，最后于微波频率2450MHz、功率700W下微波处理10min，所得混合物于45-50℃真空浓缩至无馏分产生，剩余物即为接枝共聚聚丙烯。
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)

1.一种含有聚丙烯改性硅油的建筑模板脱模剂，其特征在于，由如下重量份数的原料制成：乳化硅油25-30份、接枝共聚聚丙烯10-15份、火山灰10-15份、氢化松香8-12份、活性白土6-10份、线性低密度聚乙烯5-8份、羟丙基甲基纤维素4-6份、蓖麻油3-5份、山梨醇酐油酸酯3-5份、聚丙烯酰胺2-3份、尿素2-3份、纳米氧化铝1-2份、锌粉0.5-1份、醋酸丁酯10-15份、正丁醇10-15份；
所述接枝共聚聚丙烯的制备方法为：将35-40份聚丙烯、8-11份马来酸酐和5-8份聚乙烯醇加入80-100份环己烷中，并加热至回流状态保温搅拌10min，再加入1-2份过硫酸铵和0.5-1份亚硫酸氢钠，继续回流保温搅拌30min，然后加入10-15份陶瓷微粉和4-7份聚乙二醇400，充分混合后于0-5℃下静置1h，最后于微波频率2450MHz、功率700W下微波处理10min，所得混合物于45-50℃真空浓缩至无馏分产生，剩余物即为接枝共聚聚丙烯。
2.根据权利要求1所述的含有聚丙烯改性硅油的建筑模板脱模剂，其特征在于，其制备方法包括如下步骤：
(1)向乳化硅油中加入接枝共聚聚丙烯和纳米氧化铝，充分混合后加热至100-105℃保温混合10min，再自然冷却至55-60℃，然后继续加热至130-135℃保温混合10min，即得物料I；
(2)向氢化松香中加入线性低密度聚乙烯和聚丙烯酰胺，加热至75-80℃保温混合5min，再加热至115-120℃保温混合10min，即得物料II；
(3)向物料I中加入物料II、火山灰和活性白土，充分混合后加热至100-105℃静置保温10min，再加入蓖麻油、山梨醇酐油酸酯和锌粉，混合均匀后于微波频率2450MHz、功率700W下微波处理10min，所得混合物自然冷却至室温，最后加入羟丙基甲基纤维素、尿素、醋酸丁酯和正丁醇，充分混合均匀。
3.根据权利要求1或2所述的含有聚丙烯改性硅油的建筑模板脱模剂，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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