CN116120798A - 一种水基型膨胀型防火涂料 - Google Patents
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Abstract
本发明涉及防火涂料技术领域,且公开了一种水基型膨胀型防火涂料,原料配方包括去离子水、羟丙甲纤维素、润湿分散剂、防霉杀菌剂、阻燃剂、季戊四醇、三聚氰胺、磷酸锌、钛白粉、酸碱调节剂、消泡剂、成膜剂、乳液,按重量占比计,去离子水20%‑30%、羟丙甲纤维素0.2%‑1%、润湿分散剂0.5%‑2%、防霉杀菌剂0.2%‑1%、阻燃剂25%‑40%、季戊四醇10%‑15%、三聚氰胺10%‑15%、磷酸锌8%‑15%、钛白粉2%‑8%、酸碱调节剂0.1%‑1%、消泡剂0.5%‑2%、成膜剂1%‑5%、乳液15%‑25%。该发明,发泡倍率高达30‑50倍,在火场中从低温至高温能够持续膨胀发泡,能够持续有效隔绝火焰与保护构件之间的温度传导,从而提高了涂料的防火性能,有效提高基材的安全性和使用寿命。
Description
技术领域
本发明涉及防火涂料技术领域,尤其涉及一种水基型膨胀型防火涂料。
背景技术
防火涂料就是通过将涂料刷于材料的表面,能提高材料的耐火能力,减缓火焰蔓延传播速度,或在一定时间内能阻止燃烧,这一类涂料称为防火涂料,或叫做阻燃涂料;主要用于可燃性基材表面,能降低被涂材料表面的可燃性、阻滞火灾的迅速蔓延,用以提高被涂材料耐火极限、施用于可燃性基材表面,用以改变材料表面燃烧特性,阻滞火灾迅速蔓延;或施用于建筑构件上,用以提高构件的耐火极限的特种涂料。
防火涂料从防火机理分为膨胀型和非膨胀型两类,其中膨胀型防火涂料就是涂膜受热膨胀形成蜂窝状碳化层,使火焰热量受到隔离而减少或减缓对基材的传递,同时在高温时涂料分解出不燃气体,隔绝并稀释了空气,达到防火的性能,而目前实际应用中的膨胀型防火涂料的膨胀发泡能力较差,无法持续有效的隔绝火焰与基材之间温度传导,从而导致其隔热性能下降甚至失去保护作用。
为此,我们提出一种水基型膨胀型防火涂料。
发明内容
本发明主要是解决上述现有技术所存在的技术问题,提供一种水基型膨胀型防火涂料。
为了实现上述目的,本发明采用了如下技术方案,一种水基型膨胀型防火涂料原料配方包括去离子水、羟丙甲纤维素、润湿分散剂、防霉杀菌剂、阻燃剂、季戊四醇、三聚氰胺、磷酸锌、钛白粉、酸碱调节剂、消泡剂、成膜剂、乳液。
进一步的,原料按重量占比计包括去离子水20%-30%、羟丙甲纤维素0.2%-1%、润湿分散剂0.5%-2%、防霉杀菌剂0.2%-1%、阻燃剂25%-40%、季戊四醇10%-15%、三聚氰胺10%-15%、磷酸锌8%-15%、钛白粉2%-8%、酸碱调节剂0.1%-1%、消泡剂0.5%-2%、成膜剂1%-5%、乳液15%-25%。
进一步的,所述湿润分散剂包括湿润剂和分散剂,其主要成分为改性聚酯。
上述技术方案中,湿润分散剂对无机颜料具有卓越的润湿及分散能力,能够提高色彩强度、颜料储存稳定性,在碱性介质中增强水性树脂和乳液相容性,具有良好的防水性。
进一步的,所述防霉杀菌剂主要成分为5-氯-2-甲基-1-异噻唑啉-3-酮和2-甲基-1-异噻唑啉-3-酮的混合物。
上述技术方案中,防霉杀菌剂的加入能够提高涂料储存稳定性和储存时长。
进一步的,所述阻燃剂采用磷、氮复合型防火阻燃材料。
上述技术方案中,阻燃剂的加入使防火涂料能够有效抑制有毒烟气的生成,从而提高涂料的安全性。
进一步的,所述消泡剂主要成分为硅油有机硅。
上述技术方案中,消泡剂采用有机硅消泡剂,其可以消除在生产过程中物料形成的泡沫,防止涂料层与基材表面产生分离而出现鼓包等现象,提高涂料的附着能力。
进一步的,所述成膜剂主要成分为醇酯十二。
上述技术方案中,醇酯十二成膜剂加入后,会被吸收在乳液粒子上,软化粒子并且在涂漆时引起更好的融合,并且它不会被吸进能渗透的基质中,但能够有效地聚结乳液粒子。
进一步的,所述乳液采用聚丙烯酸酯乳液。
上述技术方案中,聚丙烯酸酯乳液与发泡剂配合使用,能够促进防火涂料的发泡效果,大大提高涂料的防火性能,并且其具备较好的粘结性能,保障了涂料的附着强度。
进一步的,其制备方法包括如下步骤:
S1:先将去离子水和羟丙甲纤维素投入分散罐内,以800r/min的速度分散搅拌至羟丙甲纤维素完全溶解;
S2:再依次向分散罐中加入润湿分散剂和防霉杀菌剂,以同样的转速分散搅拌10min,使其混合均匀;
S3:然后以缓慢的形式依次向分散罐内投入阻燃剂、季戊四醇、三聚氰胺、磷酸锌、钛白粉等粉体材料,并调节分散罐转速,以1200r/min的速度分散搅拌30min,使上述粉体材料完全分散溶解;
S4:再调节分散罐的转速至600r/min,并依次向罐中投入乳液、成膜剂、消泡剂,分散搅拌10min,使其完全混合;
S5:最后,通过向罐中缓慢添加酸碱调节剂控制调节涂料PH值至9左右。
有益效果
本发明提供了一种水基型膨胀型防火涂料。具备以下有益效果:
(1)、该一种水基型膨胀型防火涂料,发泡倍率高达30-50倍,在火场中从低温至高温能够持续膨胀发泡,能够持续有效隔绝火焰与保护构件之间的温度传导,从而提高了涂料的防火性能,有效提高基材的安全性和使用寿命。
具体实施方式
一种水基型膨胀型防火涂料,原料配方包括去离子水、羟丙甲纤维素、润湿分散剂、防霉杀菌剂、阻燃剂、季戊四醇、三聚氰胺、磷酸锌、钛白粉、酸碱调节剂、消泡剂、成膜剂、乳液。
原料按重量占比计包括去离子水20%-30%、羟丙甲纤维素0.2%-1%、润湿分散剂0.5%-2%、防霉杀菌剂0.2%-1%、阻燃剂25%-40%、季戊四醇10%-15%、三聚氰胺10%-15%、磷酸锌8%-15%、钛白粉2%-8%、酸碱调节剂0.1%-1%、消泡剂0.5%-2%、成膜剂1%-5%、乳液15%-25%。
湿润分散剂包括湿润剂和分散剂,其主要成分为改性聚酯,其作用在于,对无机颜料具有卓越的润湿及分散能力,提高色彩强度、颜料储存稳定性,在碱性介质中增强水性树脂和乳液相容性,具有良好的防水性。
防霉杀菌剂主要成分为5-氯-2-甲基-1-异噻唑啉-3-酮和2-甲基-1-异噻唑啉-3-酮的混合物,其作用在于,提高涂料储存稳定性和储存时长。
阻燃剂采用磷、氮复合型防火阻燃材料,其作用在于,抑制有毒烟气的生成,提高涂料安全性。
消泡剂主要成分为硅油有机硅,其作用在于,消除在生产过程中物料形成的泡沫,防止涂料层与基材表面产生分离而出现鼓包等现象,提高涂料的附着性。
成膜剂主要成分为醇酯十二,其作用在于,软化粒子并且在涂漆时引起更好的融合。
乳液采用聚丙烯酸酯乳液,其作用在于,提高涂料的防火性能。
其制备方法包括如下步骤:
S1:先将去离子水和羟丙甲纤维素投入分散罐内,以800r/min的速度分散搅拌至羟丙甲纤维素完全溶解;
S2:再依次向分散罐中加入润湿分散剂和防霉杀菌剂,以同样的转速分散搅拌10min,使其混合均匀;
S3:然后以缓慢的形式依次向分散罐内投入阻燃剂、季戊四醇、三聚氰胺、磷酸锌、钛白粉等粉体材料,并调节分散罐转速,以1200r/min的速度分散搅拌30min,使上述粉体材料完全分散溶解;
S4:再调节分散罐的转速至600r/min,并依次向罐中投入乳液、成膜剂、消泡剂,分散搅拌10min,使其完全混合;
S5:最后,通过向罐中缓慢添加酸碱调节剂控制调节涂料PH值至9左右。
防火涂料性能指标要求如下表所示:
本发明的工作原理:发泡倍率高达30-50倍,在火场中从低温至高温能够持续膨胀发泡,能够持续有效隔绝火焰与保护构件之间的温度传导。
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 (9)
1.一种水基型膨胀型防火涂料,其特征在于:原料配方包括去离子水、羟丙甲纤维素、润湿分散剂、防霉杀菌剂、阻燃剂、季戊四醇、三聚氰胺、磷酸锌、钛白粉、酸碱调节剂、消泡剂、成膜剂、乳液。
2.根据权利要求1所述的水基型膨胀型防火涂料,其特征在于:原料按重量占比计包括去离子水20%-30%、羟丙甲纤维素0.2%-1%、润湿分散剂0.5%-2%、防霉杀菌剂0.2%-1%、阻燃剂25%-40%、季戊四醇10%-15%、三聚氰胺10%-15%、磷酸锌8%-15%、钛白粉2%-8%、酸碱调节剂0.1%-1%、消泡剂0.5%-2%、成膜剂1%-5%、乳液15%-25%。
3.根据权利要求2所述的水基型膨胀型防火涂料,其特征在于:所述湿润分散剂包括湿润剂和分散剂,其主要成分为改性聚酯。
4.根据权利要求2所述的水基型膨胀型防火涂料,其特征在于:所述防霉杀菌剂主要成分为5-氯-2-甲基-1-异噻唑啉-3-酮和2-甲基-1-异噻唑啉-3-酮的混合物。
5.根据权利要求2所述的水基型膨胀型防火涂料,其特征在于:所述阻燃剂采用磷、氮复合型防火阻燃材料。
6.根据权利要求2所述的水基型膨胀型防火涂料,其特征在于:所述消泡剂主要成分为硅油有机硅。
7.根据权利要求2所述的水基型膨胀型防火涂料,其特征在于:所述成膜剂主要成分为醇酯十二。
8.根据权利要求2所述的水基型膨胀型防火涂料,其特征在于:所述乳液采用聚丙烯酸酯乳液。
9.根据权利要求1-8所述的水基型膨胀型防火涂料,其制备方法包括如下步骤:
S1:先将去离子水和羟丙甲纤维素投入分散罐内,以800r/min的速度分散搅拌至羟丙甲纤维素完全溶解;
S2:再依次向分散罐中加入润湿分散剂和防霉杀菌剂,以同样的转速分散搅拌10min,使其混合均匀;
S3:然后以缓慢的形式依次向分散罐内投入阻燃剂、季戊四醇、三聚氰胺、磷酸锌、钛白粉等粉体材料,并调节分散罐转速,以1200r/min的速度分散搅拌30min,使上述粉体材料完全分散溶解;
S4:再调节分散罐的转速至600r/min,并依次向罐中投入乳液、成膜剂、消泡剂,分散搅拌10min,使其完全混合;
S5:最后,通过向罐中缓慢添加酸碱调节剂控制调节涂料PH值至9左右。
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