CN106243980A - 聚氨酯喷涂组合料及其制备方法 - Google Patents

聚氨酯喷涂组合料及其制备方法 Download PDF

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CN106243980A
CN106243980A CN201610739293.4A CN201610739293A CN106243980A CN 106243980 A CN106243980 A CN 106243980A CN 201610739293 A CN201610739293 A CN 201610739293A CN 106243980 A CN106243980 A CN 106243980A
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陈�峰
管丽娜
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Abstract

本发明涉及一种用于阻燃的材料,具体的说涉及一种聚氨酯喷涂组合料及其制备方法。所述聚氨酯喷涂组合料由基础原料与异氰酸酯按质量比1:1混合反应而成,所述基础原料由下列重量份的组份加工而成:聚醚多元醇35‑46份,阻燃剂15‑30份,硅油0.5‑2份,水0.5‑2份,助剂2‑8份,HCFC‑141b(一氟二氯乙烷)16‑24份,改性聚醚8‑16份。本发明的产品在火的高温攻击下,会迅速形成碳化层,不仅耐高温,并且能防止火灾蔓延,有抗火、隔火的功能。同时还具备低发烟。

Description

聚氨酯喷涂组合料及其制备方法
技术领域
本发明涉及一种用于阻燃的材料,具体的说涉及一种聚氨酯喷涂组合料及其制备方法。
背景技术
现有的聚氨酯泡沫是一种具有独特性能和多方面用途的高聚物,它以聚醚多元醇和二异腈酸酯为基本原料,配入少量水、有机硅表面活性剂、发泡剂,在有机锡和叔胺催化剂的共同作用下形成的,用它可以制造硬质、半硬质和软质聚氨酯泡沫塑料,主要作为阻燃材料应用的有保温管道、冷库板、墙体保温板、仿木线条、汽车坐垫、靠垫、内饰件以及摩托车的鞍座等方面同时也可用于制作沙发、床垫、装饰材料等民用产品。
聚合物聚醚多元醇通常是乙烯基单体在分散剂存在下于聚醚多元醇中自由基分散聚合的产物,这些聚合物聚醚多元醇均不具有阻燃性,用其所制备的聚氨酯泡沫也不具有阻燃性。
聚氨酯泡沫塑料制品极易燃烧,阻燃困难,目前常用的阻燃方法大多是在生产聚氨酯的原料中添加阻燃剂,所用的阻燃剂主要有反应型阻燃聚醚多元醇和非反应型小分子阻燃剂,反应型阻燃聚醚多元醇主要是含磷氯聚醚多元醇,用这种聚醚多元醇所制得的聚氨酯泡沫成本高、承载力低;非反应型小分子阻燃剂的品种主要有密胺类、亚磷酸脂和氯化物类等液体或固体化合物,使用液体非反应型小分子阻燃剂,随泡沫材料的使用阻燃剂渐挥发,阻燃效果下降,并对环境造成一定危害;使用固体非反应型小分子阻燃剂会明显增加聚醚多元醇的黏度,增加发泡工艺难度,降低泡沫体的开孔率,并使泡沫体的密度上下不均。这类阻燃剂使用麻烦,难混合均匀,用量较大,阻燃成本高。
发明内容
本发明的目的在于解决现有技术的不足,提供一种聚氨酯喷涂组合料。
本发明的另一个目的在于提供一种聚氨酯喷涂组合料的制备方法。
本发明解决其技术问题所采用的技术方案是:
聚氨酯喷涂组合料,所述聚氨酯喷涂组合料由基础原料与异氰酸酯按质量比1:1混合反应而成,所述基础原料由下列重量份的组份加工而成:聚醚多元醇35-46份,阻燃剂15-30份,硅油0.5-2份,水0.5-2份,助剂2-8份,HCFC-141b(一氟二氯乙烷) 16-24份,改性聚醚8-16份。
优选的,所述基础原料由下列重量份的组份加工而成:聚醚多元醇38-42份,阻燃剂15-25份,硅油0.5-1.5份,水1-1.5份,助剂3-6份,HCFC-141b(一氟二氯乙烷)18-22份,改性聚醚10-14份。
优选的,所述基础原料由下列重量份的组份加工而成:聚醚多元醇40份,阻燃剂18份,硅油0.7份,水1份,助剂5份,HCFC-141b(一氟二氯乙烷) 18份,改性聚醚10份。
优选的,所述助剂为有机膨润土和/或磁性有序介孔介质。
所述磁性有序介孔介质为磁性有序介孔炭或磁性有序介孔铁酸镍。
更优选的,所述磁性有序介孔介质为磁性有序介孔铁酸镍,其制备方法如下:
1)将 Ni(NO3)2·6H2O和 Fe(NO3)3·9H2O溶解于甲醇中,将适量多孔硅KIT-6放入盛有正己烷的聚四氟乙烯容器中,充分搅拌;
2)将溶液1)的原料逐滴加入步骤2)中,所形成的混合溶液充分搅拌,于50-60 ℃加热8-12h;
3)步骤2)所得固体于250-280 ℃下灼烧4-5 h;
4)将步骤3)所得固体冷却至室温,经研磨后转移至盛有NaOH溶液的圆底烧瓶内,于40-50 ℃水浴条件下回流搅拌24 -36h后离心回收;
5)将步骤4)所得固体分别用乙醇和去离子水反复清洗至中性后,经真空干燥即可。
本发明的聚氨酯喷涂组合料基础原料配伍合理,其中助剂中的有机膨润土具有良好的触变性、化学稳定性、分散性,原料中加入适量有机膨润土搅拌均匀后,即可形成稳定的分散料,后续用于制备聚氨酯喷涂组合料时,可以显著改善聚氨酯喷涂组合料的质量均一性、稳定性;所采用的磁性有序介孔炭和磁性有序介孔铁酸镍具备巨大的比表面积和丰富的三维孔隙结构,分散性极好,高比表面积有利于阻燃剂吸附储存,进一步提高聚氨酯喷涂组合料的质量均一性、稳定性。
一种聚氨酯喷涂组合料的制备方法,所述制备方法步骤如下:
(1)将基础原料的各组分按顺序添加入搅拌罐中混合,搅拌均匀;
(2)步骤(1)的基础原料与异氰酸酯按质量比1:1混合搅拌反应0.5-2h。
本发明的有益效果是:本发明的产品在火的高温攻击下,会迅速形成碳化层,不仅耐高温,并且能防止火灾蔓延,有抗火、隔火的功能。同时还具备低发烟。
具体实施方式
下面通过具体实施例,对本发明的技术方案作进一步的具体说明。
本发明实施例中使用的原料均系市购常规原料。
实施例1:
聚氨酯喷涂组合料,所述聚氨酯喷涂组合料由基础原料与异氰酸酯按质量比1:1混合反应而成,所述基础原料由下列重量份的组份加工而成:聚醚多元醇35份,阻燃剂15份,硅油0.5份,水0.5份,助剂2份,HCFC-141b(一氟二氯乙烷)16份,改性聚醚8份;
聚氨酯喷涂组合料的制备方法步骤如下:
(1)将基础原料的各组分按顺序添加入搅拌罐中混合,搅拌均匀;
(2)步骤(1)的基础原料与异氰酸酯按质量比1:1于常温混合搅拌反应0.5h。
实施例2:
聚氨酯喷涂组合料,所述聚氨酯喷涂组合料由基础原料与异氰酸酯按质量比1:1混合反应而成,所述基础原料由下列重量份的组份加工而成:聚醚多元醇46份,阻燃剂30份,硅油2份,水2份,助剂8份,HCFC-141b(一氟二氯乙烷),改性聚醚16份;
聚氨酯喷涂组合料的制备方法步骤如下:
(1)将基础原料的各组分按顺序添加入搅拌罐中混合,搅拌均匀;
(2)步骤(1)的基础原料与异氰酸酯按质量比1:1于常温混合搅拌反应2h。
实施例3:
聚氨酯喷涂组合料,所述聚氨酯喷涂组合料由基础原料与异氰酸酯按质量比1:1混合反应而成,所述基础原料由下列重量份的组份加工而成:聚醚多元醇40份,阻燃剂18份,硅油0.7份,水1份,助剂5份,HCFC-141b(一氟二氯乙烷),改性聚醚10份;
聚氨酯喷涂组合料的制备方法步骤如下:
(1)将基础原料的各组分按顺序添加入搅拌罐中混合,搅拌均匀;
(2)步骤(1)的基础原料与异氰酸酯按质量比1:1于常温混合搅拌反应1h。
本发明的聚氨酯喷涂组合料基础原料配伍合理,其中助剂中的有机膨润土具有良好的触变性、化学稳定性、分散性,原料中加入适量有机膨润土搅拌均匀后,即可形成稳定的分散料,后续用于制备聚氨酯喷涂组合料时,可以显著改善聚氨酯喷涂组合料的质量均一性、稳定性;所采用的磁性有序介孔炭和磁性有序介孔铁酸镍具备巨大的比表面积和丰富的三维孔隙结构,分散性极好,高比表面积有利于阻燃剂吸附储存,进一步提高聚氨酯喷涂组合料的质量均一性、稳定性。
本发明的产品在火的高温攻击下,会迅速形成碳化层,不仅耐高温,并且能防止火灾蔓延,有抗火、隔火的功能。同时还具备低发烟。
以上所述的实施例只是本发明的一种较佳的方案,并非对本发明作任何形式上的限制,在不超出权利要求所记载的技术方案的前提下还有其它的变体及改型。

Claims (5)

1.聚氨酯喷涂组合料,其特征在于,所述聚氨酯喷涂组合料由基础原料与异氰酸酯按质量比1:1混合反应而成,所述基础原料由下列重量份的组份加工而成:聚醚多元醇35-46份,阻燃剂15-30份,硅油0.5-2份,水0.5-2份,助剂2-8份,一氟二氯乙烷 16-24份,改性聚醚8-16份。
2.根据权利要求1所述的聚氨酯喷涂组合料,其特征在于,所述基础原料由下列重量份的组份加工而成:聚醚多元醇38-42份,阻燃剂15-25份,硅油0.5-1.5份,水1-1.5份,助剂3-6份,一氟二氯乙烷 18-22份,改性聚醚10-14份。
3.根据权利要求2所述的聚氨酯喷涂组合料,其特征在于,所述基础原料由下列重量份的组份加工而成:聚醚多元醇40份,阻燃剂18份,硅油0.7份,水1份,助剂5份,一氟二氯乙烷18份,改性聚醚10份。
4.根据权利要求1或2或3所述的聚氨酯喷涂组合料,其特征在于,所述助剂为有机膨润土和/或磁性有序介孔介质。
5.一种权利要求1-4任意一项所述的聚氨酯喷涂组合料的制备方法,其特征在于,所述制备方法步骤如下:
(1)将基础原料的各组分按顺序添加入搅拌罐中混合,搅拌均匀;
(2)步骤(1)的基础原料与异氰酸酯按质量比1:1于常温混合搅拌反应0.5-2h。
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