CN106832208A - 煤矿用高阻燃聚氨酯瓦斯封孔材料及其制备方法 - Google Patents

煤矿用高阻燃聚氨酯瓦斯封孔材料及其制备方法 Download PDF

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CN106832208A
CN106832208A CN201710051344.9A CN201710051344A CN106832208A CN 106832208 A CN106832208 A CN 106832208A CN 201710051344 A CN201710051344 A CN 201710051344A CN 106832208 A CN106832208 A CN 106832208A
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徐军
郝德开
唐国涛
朱文静
刘玄
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Shandong Inov New Material Co Ltd
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Abstract

本发明涉及聚氨酯技术领域，具体涉及一种煤矿用高阻燃聚氨酯瓦斯封孔材料及其制备方法。所述的封孔材料由A组份和B组份构成，A组份由多元醇、水、助剂和阻燃剂、物理发泡剂组成，B组份为多亚甲基多苯基多异氰酸酯。本发明通过配方设计，对多元醇、助剂、阻燃剂的复配得到阻燃性能优良、效果稳定的应用于瓦斯封孔的高阻燃聚氨酯材料，具有常温反应，反应速度可调，发泡倍率可调，阻燃性能好的优点，发出的泡沫阻燃性好，并且对煤岩体具有良好的粘结性，粘合后抗剪切性及韧性好，耐冲击，相关原料气味低，不产生任何有毒气体，完全满足瓦斯封孔材料的使用和环保要求。

Description

煤矿用高阻燃聚氨酯瓦斯封孔材料及其制备方法
技术领域
本发明涉及聚氨酯技术领域，具体涉及一种煤矿用高阻燃聚氨酯瓦斯封孔材料及其制备方法。
背景技术
目前常用的瓦斯封孔材料主要有黄泥封孔材料、水泥砂浆封孔材料和聚氨酯封孔材料，其中，黄泥封孔材料的软硬不易控制、固化时间长，不能很好的达到封孔效果；水泥砂浆封孔材料流动性差，不易渗入细小缝隙，易产生漏气、凝结时间长、操作复杂。而聚氨酯封孔材料由于具有膨胀倍率大、密封好、粘结力强，固化时间可调等特点，被越来越多的应用到矿井下瓦斯抽采的治理中。
现有的聚氨酯瓦斯封孔材料未经阻燃处理，未经阻燃处理的泡沫在空气中极易燃烧，对煤矿的正常开采和矿下工人的生命财产具有很大的潜在危害。因此，要求使用的聚氨酯瓦斯封孔材料具有耐火、阻燃性。传统的聚氨酯泡沫塑料提高阻燃性能的方法是在泡沫中加入卤素、氮、磷、锑等阻燃元素，但这种方法添加量高，很难在保证聚氨酯物理性能的前提下达到阻燃要求。
发明内容
本发明的目的是提供一种通过对多元醇、助剂、阻燃剂的复配得到阻燃性能优良、效果稳定的应用于瓦斯封孔的高阻燃聚氨酯材料。
本发明所述的煤矿用高阻燃聚氨酯瓦斯封孔材料，由A组分和B组分组成，使用时，A组分和B组分按照重量比1:1混合发泡，其中：
A组份为，以重量百分数计：
所述聚醚多元醇a为官能度为4-6，分子量为300-1000的聚环氧丙烷醚多元醇；优选蓝星东大的SA460、450L或一诺威新材料的YNW-4110；
所述聚醚多元醇b为官能度为2-3，分子量为400-1000的聚环氧丙烷醚多元醇；优选蓝星东大的DL400、DL1000或MN1000；
所述聚酯多元醇为官能度2-3，分子量为250-700的芳烃聚酯多元醇；优选一诺威的B175、B503或斯泰潘的PS3152。
B组份为：
多亚甲基多苯基多异氰酸酯，优选拜耳44V20、烟台万华的PM200或巴斯夫的M20S。
其中：
泡沫稳定剂为有机硅类表面活性剂，优选美国迈图L6950、L6952，赢创德固赛的B8545。
催化剂为N,N-二甲基环己胺、N,N-二甲基苄氨、1,8-二氮杂二环[5.4.0]十一碳-7-烯(DBU)、季铵盐(TMR-2)中的两种或两种以上的混合物。
阻燃剂a为磷酸酯类阻燃剂，优选TCPP。
阻燃剂b为膨胀石墨类阻燃剂，优选青岛联美的LM8089。
物理发泡剂为一氟二氯乙烷。
所述的煤矿用高阻燃聚氨酯瓦斯封孔材料的制备方法，包括以下步骤：
(1)制备A组份料：
按照配比先称量好各种原料备用；将称量好的聚醚多元醇a、聚醚多元醇b、聚酯多元醇、水、泡沫稳定剂、催化剂、阻燃剂a、阻燃剂b投入混合釜中并搅拌均匀，然后将物理发泡剂加入混合釜中搅拌均匀，抽样检测合格后出料；
(2)使用时，将A、B组份料按A:B＝1:1的重量比，使用专用双液注浆泵混合浇注发泡或使用专用封孔袋分装搅拌发泡，得到煤矿用高阻燃聚氨酯瓦斯封孔材料。
本发明的有益效果如下：
(1)本发明通过配方设计，对多元醇、助剂、阻燃剂的复配得到阻燃性能优良、效果稳定的应用于瓦斯封孔的高阻燃聚氨酯材料，具有常温反应，反应速度可调，发泡倍率可调，阻燃性能好的优点。并且对煤岩体具有良好的粘结性，粘合后抗剪切性及韧性好，耐冲击。
(2)本发明材料的原料液运输方便、粘度低、流动性好、储存稳定性好、绿色、无污染，气味低，不产生任何有毒气体，对人体无害，完全满足瓦斯封孔材料的使用和环保要求。
(3)本发明采用专用双液注浆泵混合浇注发泡或使用专用封孔袋分装搅拌发泡，操作简单，使用方便。
具体实施方式
以下结合实施例对本发明做进一步描述。
实施例1
(1)制备A组份料100公斤，分别称量聚醚多元醇(SA460，蓝星东大)35公斤，聚醚多元醇(DL400，蓝星东大)5公斤，聚酯多元醇(B175，一诺威)10公斤，泡沫稳定剂(L6950，美国迈图)2公斤，水1.5公斤，N,N-二甲基环己胺0.2公斤、N，N-二甲基苄氨0.8公斤、Dabco TMR-2(美国空气化工)1公斤，TCPP 20公斤，膨胀石墨类阻燃剂(LM8089，青岛联美)4.5公斤，一氟二氯乙烷20公斤，将称量好的聚醚多元醇、聚酯多元醇、水、泡沫稳定剂、催化剂、阻燃剂装入混合釜内搅拌，然后加入物理发泡剂，在常温下搅拌均匀，取样检测合格后，即可装桶。
(2)制备B组份选用44V20(拜耳)，100公斤。
将A、B组份按A:B＝100:100重量配比混合制成煤矿用高阻燃聚氨酯瓦斯封孔材料。
实施例2
(1)制备A组份料100公斤，分别称量聚醚多元醇(450L，蓝星东大)42公斤，聚醚多元醇(DL1000，蓝星东大)7.5公斤，聚酯多元醇(B503，一诺威)14公斤，泡沫稳定剂(B8545，赢创德固赛)3公斤，水2公斤，N,N-二甲基苄氨0.6公斤、Dabco TMR-2(美国空气化工)0.7公斤，DBU(1,8-二氮杂环十一烯)0.2公斤，膨胀石墨类阻燃剂(LM8089，青岛联美)12公斤，一氟二氯乙烷18公斤，将称量好的聚醚多元醇、聚酯多元醇、水、泡沫稳定剂、催化剂、阻燃剂装入混合釜内搅拌，然后加入物理发泡剂，在常温下搅拌均匀，取样检测合格后，即可装桶。
(2)制备B组份选用PM200(烟台万华)，100公斤。
将A、B组份按A:B＝100:100重量配比混合制成煤矿用高阻燃聚氨酯瓦斯封孔材料。
实施例3
制备A组份料100公斤，分别称量聚醚多元醇(YNW4110，一诺威新材料)38.3公斤，聚醚多元醇(MN1000，蓝星东大)9公斤，聚酯多元醇(PS3152，斯泰潘)8公斤，泡沫稳定剂(L6952，美国迈图)1公斤，水0.8公斤，N,N-二甲基苄氨0.4公斤、Dabco TMR-2(美国空气化工)0.5公斤，TEP25公斤，膨胀石墨类阻燃剂(LM8089，青岛联美)10公斤，一氟二氯乙烷7公斤，将称量好的聚醚多元醇、聚酯多元醇、水、泡沫稳定剂、催化剂、阻燃剂装入混合釜内搅拌，然后加入物理发泡剂，在常温下搅拌均匀，取样检测合格后，即可装桶。
(2)制备B组份选用M20S(巴斯夫)，100公斤。
将A、B组份按A:B＝100:100重量配比混合制成煤矿用高阻燃聚氨酯瓦斯封孔材料。将实施例1-3的产品进行检测，具体指标见表1。
表1实施例1-3产品检测数据表

Claims (6)

1.一种煤矿用高阻燃聚氨酯瓦斯封孔材料，其特征在于：由A组分和B组分组成，使用时，A组分和B组分按照重量比1:1混合发泡，其中：
A组份为，以重量百分数计：
所述聚醚多元醇a为官能度为4-6，分子量为300-1000的聚环氧丙烷醚多元醇；
所述聚醚多元醇b为官能度为2-3，分子量为400-1000的聚环氧丙烷醚多元醇；
所述聚酯多元醇为官能度2-3，分子量为250-700的芳烃聚酯多元醇；
B组份为：
多亚甲基多苯基多异氰酸酯。
2.根据权利要求1所述的煤矿用高阻燃聚氨酯瓦斯封孔材料，其特征在于：泡沫稳定剂为有机硅类表面活性剂。
3.根据权利要求1所述的煤矿用高阻燃聚氨酯瓦斯封孔材料，其特征在于：催化剂为N，N-二甲基环己胺、N,N-二甲基苄氨、1,8-二氮杂二环[5.4.0]十一碳-7-烯、季铵盐中的两种或两种以上的混合物。
4.根据权利要求1所述的煤矿用高阻燃聚氨酯瓦斯封孔材料，其特征在于：阻燃剂a为磷酸酯类阻燃剂；阻燃剂b为膨胀石墨类阻燃剂。
5.根据权利要求1所述的煤矿用高阻燃聚氨酯瓦斯封孔材料，其特征在于：物理发泡剂为一氟二氯乙烷。
6.一种权利要求1-5任一所述的煤矿用高阻燃聚氨酯瓦斯封孔材料的制备方法，其特征在于包括以下步骤：
(1)制备A组份料：
按照配比先称量好各种原料备用；将称量好的聚醚多元醇a、聚醚多元醇b、聚酯多元醇、水、泡沫稳定剂、催化剂、阻燃剂a、阻燃剂b投入混合釜中并搅拌均匀，然后将物理发泡剂加入混合釜中搅拌均匀，抽样检测合格后出料；
(2)使用时，将A、B组份料按A:B＝1:1的重量比发泡，得到煤矿用高阻燃聚氨酯瓦斯封孔材料。
CN201710051344.9A 2017-01-23 2017-01-23 煤矿用高阻燃聚氨酯瓦斯封孔材料及其制备方法 Pending CN106832208A (zh)

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