CN104961878A - 连续法生产聚异氰脲酸酯保温板用组合聚醚及其制备方法 - Google Patents

连续法生产聚异氰脲酸酯保温板用组合聚醚及其制备方法 Download PDF

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CN104961878A
CN104961878A CN201510320831.1A CN201510320831A CN104961878A CN 104961878 A CN104961878 A CN 104961878A CN 201510320831 A CN201510320831 A CN 201510320831A CN 104961878 A CN104961878 A CN 104961878A
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徐业峰
张佳佳
李明友
唐国涛
周生鹏
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Shandong Inov New Material Co Ltd
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Abstract

本发明属于聚氨酯技术领域,具体涉及一种连续法生产聚异氰脲酸酯保温板用组合聚醚及其制备方法。所述的组合聚醚由组分A和组分B制成,组分A与组分B的重量比为1:1.6~1.65,其中,组分A由以下组分制成,以重量百分数计:聚醚多元醇A 10~18;聚醚多元醇B 3~6;聚酯多元醇C 30~45;泡沫稳定剂1.2~2.2;化学发泡剂0.9~3.0;物理发泡剂10~20;催化剂2.5~4.5;阻燃剂15~32.5;组分B为二苯基甲烷二异氰酸酯或多亚甲基多苯基多异氰酸酯。本发明制得的聚氨酯泡沫阻燃性能优、烟密度低、火焰传播性小,与基材粘结性好,尺寸变化率低,导热系数符合国家标准。

Description

连续法生产聚异氰脲酸酯保温板用组合聚醚及其制备方法
技术领域
本发明属于聚氨酯技术领域,具体涉及一种连续法生产聚异氰脲酸酯保温板用组合聚醚及其制备方法。
背景技术
近几年我国出现了以央视大火、上海“11.15”大火、沈阳第一高楼大火、寿光冷库大火为典型的保温层所引起的建筑火灾。从材料源头上治理、解决建筑节能中的防火安全问题已经迫在眉睫。现在我国建筑中大规模应用的主要是聚苯乙烯泡沫塑料和硬质聚氨酯泡沫,其技术成熟,大规模应用为我国建筑节能减排起到了关键作用,但是这些材料属于易燃可燃材料,均存在严重的火灾隐患。聚苯乙烯泡沫塑料是热塑性材料,受火高温反应会收缩、融化、滴落进而引发大火。一般聚苯乙烯泡沫分子材料保温性能好、质地轻,经过大量试验验证,聚异氰脲酸酯泡沫属于低烟、低碳、低毒阻燃级别只能达到B3级,即便是改性后阻燃级别最多达到B2级。硬质聚氨酯泡沫属于热固性材料,阻燃级别最多为B2级,且这种材料在燃烧过程中很难形成碳化层,不能进一步阻止火势蔓延。因此需要一种新型材料既能满足保温性能又具有优秀的阻燃性能。
发明内容
本发明的目的是提供一种连续法生产聚异氰脲酸酯保温板用组合聚醚,制得的聚氨酯泡沫阻燃性能优、烟密度低、火焰传播性小,与基材粘结性好,尺寸变化率低,导热系数符合国家标准;本发明同时提供其制备方法。
本发明所述的连续法生产聚异氰脲酸酯保温板用组合聚醚,由组分A和组分B制成,组分A与组分B的重量比为1:1.6~1.65,其中,
组分A由以下组分制成,以重量百分数计:
所述聚醚多元醇A为羟值为420~480mgKOH/g的聚醚多元醇;
所述聚醚多元醇B为羟值为750~800mgKOH/g的聚醚多元醇;
所述聚酯多元醇C为羟值为150~250mgKOH/g的阻燃聚酯多元醇;
组分B为二苯基甲烷二异氰酸酯或多亚甲基多苯基多异氰酸酯。
所述泡沫稳定剂为非水解硅碳类表面活性剂,优选L6920(迈图公司市售产品)。
所述化学发泡剂为水,优选去离子水。
所述物理发泡剂为HFC-365mfc和正戊烷的混合物,两者重量比为29:21。
所述催化剂为N,N,N',N”,N”-五甲基二亚乙基三胺、N,N-二甲基环己胺、N,N-二甲基苄胺、甲酸中和的70%双-(二甲氨基乙基)醚一缩丙二醇溶液、1,3,5-三(二甲氨基丙基)六氢三嗪、四甲基乙二胺或异辛酸钾中的一种或多种。
所述阻燃剂为磷酸三(2-氯丙基)酯(TCPP)、甲基膦酸二甲酯、磷酸铵或三聚氰胺中的一种或多种。
所述的连续法生产聚异氰脲酸酯保温板用组合聚醚的制备方法,包括以下步骤:
制备组分A:将聚醚多元醇A、聚醚多元醇B、聚酯多元醇C、泡沫稳定剂、化学发泡剂、催化剂、阻燃剂、物理发泡剂,依次加入反应釜中,在常温下搅拌0.5~1小时,充分混合;
使用时,将组分A与组分B按A:B=1:1.6~1.65的重量比通过高压发泡机均匀混合制得。
本发明的有益效果如下:
(1)组分A采用聚醚与阻燃聚酯搭配使用,使用连续法生产的板材泡沫强度高、导热系数低,泡沫阻燃性能好,制品整体平整度好,切面颜色均一无黄线、烧心现象,厚度方向在熟化前后几乎无变化。应用此组合聚醚制得的聚氨酯泡沫保温板完全达到了GB/T21558-2008建筑绝热用硬质聚氨酯泡沫塑料的标准。
本发明经过大量试验验证,研发出低碳、低烟、低毒的聚异氰脲酸酯泡沫,该泡沫氧指数高,在燃烧时先形成碳化层防止泡沫进一步燃烧,且在燃烧过程中产生的烟雾少、火焰传播性小,基本无滴落物。
(2)组分A的制备是在常温下进行,既节约能源又减少供能设备和繁琐的操作,生产的聚氨酯泡沫保温材料也是在常温下进行,工艺简单、易操作、挥发低、无三废、产品质量稳定、生产周期短、成本低、效率高、耗能低。
(3)组分A中催化剂采用了合理搭配,在不影响泡沫整体性能的前提下提高三聚催化剂的用量,提高三聚转化率进而提高泡沫的阻燃性,得到产品的泡沫阻燃性能极佳、烟密度低、火焰传播性小。
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、制备组分A,200kg:分别称量聚醚多元醇A:YNW-6001A(山东一诺威新材料)、30kg,聚醚多元醇B:YNW-403(山东一诺威新材料)、6kg,阻燃聚酯多元醇C:B-175(山东一诺威股份有限公司)65kg,泡沫稳定剂L-6920(迈图公司)、3kg,去离子水、2.5kg,催化剂N,N,N’,N”,N”-五甲基二亚乙基三胺、N,N-二甲基环己胺、N,N-二甲基苄胺、甲酸中和的70%双-(二甲氨基乙基)醚一缩丙二醇溶液、1,3,5-三(二甲氨基丙基)六氢三嗪、四甲基乙二胺的混合物,重量分别为0.5kg、1.1kg、1.5kg、1.6kg、1.3kg和1.5kg,物理发泡剂HFC-365mfc/正戊烷(HFC-365mfc和正戊烷的混合物,两者重量比为29:21)、36kg,阻燃剂TCPP、50kg。
将称量好的聚醚多元醇A、聚醚多元醇B、聚酯多元醇C、泡沫稳定剂、化学发泡剂、催化剂、阻燃剂、物理发泡剂,依次加入反应釜中,在常温下搅拌0.5小时,充分混合。
2、组分B二苯基甲烷二异氰酸酯,320kg。
3、将组分A与组分B按照重量比1:1.6通过高压机均匀混合使用连续法生产聚氨酯保温板,制得聚氨酯硬泡保温材料,制得的产品质量指标见表1。
实施例2
1、制备组分A,200kg:分别称量聚醚多元醇A:YNW-6001A(山东一诺威新材料)、20kg,聚醚多元醇B:YNW-403(山东一诺威新材料)、7kg,阻燃聚酯多元醇C:B-175(山东一诺威股份有限公司)70kg,泡沫稳定剂L-6920(迈图公司)、3kg,去离子水、2kg,催化剂N,N,N’,N”,N”-五甲基二亚乙基三胺、N,N-二甲基环己胺、N,N-二甲基苄胺、甲酸中和的70%双-(二甲氨基乙基)醚一缩丙二醇溶液、1,3,5-三(二甲氨基丙基)六氢三嗪、四甲基乙二胺、异辛酸钾的混合物,重量分别为0.9kg、1.1kg、1.2kg、1.5kg、1.1kg、1.2kg和1kg,物理发泡剂HFC-365mfc/正戊烷(HFC-365mfc和正戊烷的混合物,两者重量比为29:21)、25kg,阻燃剂TCPP、65kg。
将称量好的聚醚多元醇A、聚醚多元醇B、聚酯多元醇、泡沫稳定剂、化学发泡剂、催化剂、阻燃剂、物理发泡剂,依次加入反应釜中,在常温下搅拌0.5小时,充分混合。
2、组分B二苯基甲烷二异氰酸酯、330kg。
3、将组分A与组分B按照重量比1:1.65通过高压机均匀混合使用连续法生产聚氨酯保温板,制得聚氨酯硬泡保温材料,制得的产品质量指标见表1。
实施例3
1、制备组分A,200kg:分别称量聚醚多元醇A:YNW-6001A(山东一诺威新材料)、20kg,聚醚多元醇B:YNW-403(山东一诺威新材料)、6kg,阻燃聚酯多元醇C:B-175(山东一诺威股份有限公司)80kg,泡沫稳定剂L-6920(迈图公司)、3kg,去离子水、1.8kg,催化剂N,N,N’,N”,N”-五甲基二亚乙基三胺、N,N-二甲基环己胺、N,N-二甲基苄胺、甲酸中和的70%双-(二甲氨基乙基)醚一缩丙二醇溶液、1,3,5-三(二甲氨基丙基)六氢三嗪、四甲基乙二胺、异辛酸钾的混合物,重量分别为0.8kg、0.8kg、1.5kg、1kg、0.8kg、0.8kg和1.5kg,物理发泡剂HFC-365mfc/正戊烷(HFC-365mfc和正戊烷的混合物,两者重量比为29:21)、24kg,阻燃剂TCPP、58kg。
将称量好的聚醚多元醇A、聚醚多元醇B、聚酯多元醇、泡沫稳定剂、化学发泡剂、催化剂、阻燃剂、物理发泡剂,依次加入反应釜中,在常温下搅拌0.5小时,充分混合。
2、组分B二苯基甲烷二异氰酸酯、320kg。
3、将组分A与组分B按照重量比1:1.6通过高压机均匀混合使用连续法生产聚氨酯保温板,泡沫迅速成型熟化,制得聚氨酯硬泡保温材料,制得的产品质量指标见表1。
表1实施例1~3的泡沫产品质量检测数据
由上表可知:组合聚醚产品对臭氧层无破坏,环保性能优;制得的聚氨酯泡沫导热系数低,具有一定的开孔性、产品稳定性好,阻燃性能优。

Claims (7)

1.一种连续法生产聚异氰脲酸酯保温板用组合聚醚,其特征在于,由组分A和组分B制成,组分A与组分B的重量比为1:1.6~1.65,其中,
组分A由以下组分制成,以重量百分数计:
所述聚醚多元醇A为羟值为420~480mgKOH/g的聚醚多元醇;
所述聚醚多元醇B为羟值为750~800mgKOH/g的聚醚多元醇;
所述聚酯多元醇C为羟值为150~250mgKOH/g的阻燃聚酯多元醇;
组分B为二苯基甲烷二异氰酸酯或多亚甲基多苯基多异氰酸酯。
2.根据权利要求1所述的连续法生产聚异氰脲酸酯保温板用组合聚醚,其特征在于,所述泡沫稳定剂为非水解硅碳类表面活性剂。
3.根据权利要求1所述的连续法生产聚异氰脲酸酯保温板用组合聚醚,其特征在于,所述化学发泡剂为水。
4.根据权利要求1所述的连续法生产聚异氰脲酸酯保温板用组合聚醚,其特征在于,所述物理发泡剂为HFC-365mfc和正戊烷的混合物,两者重量比为29:21。
5.根据权利要求1所述的连续法生产聚异氰脲酸酯保温板用组合聚醚,其特征在于,所述催化剂为N,N,N',N”,N”-五甲基二亚乙基三胺、N,N-二甲基环己胺、N,N-二甲基苄胺、甲酸中和的70%双-(二甲氨基乙基)醚一缩丙二醇溶液、1,3,5-三(二甲氨基丙基)六氢三嗪、四甲基乙二胺或异辛酸钾中的一种或多种。
6.根据权利要求1所述的连续法生产聚异氰脲酸酯保温板用组合聚醚,其特征在于,所述阻燃剂为三(2-氯丙基)磷酸酯、甲基膦酸二甲酯、磷酸铵或三聚氰胺中的一种或多种。
7.一种权利要求1~6任一所述的连续法生产聚异氰脲酸酯保温板用组合聚醚的制备方法,其特征在于,包括以下步骤:
制备组分A:将聚醚多元醇A、聚醚多元醇B、聚酯多元醇C、泡沫稳定剂、化学发泡剂、催化剂、阻燃剂、物理发泡剂,依次加入反应釜中,在常温下搅拌0.5~1小时,充分混合;
使用时,将组分A与组分B按A:B=1:1.6~1.65的重量比通过高压发泡机均匀混合制得。
CN201510320831.1A 2015-06-11 2015-06-11 连续法生产聚异氰脲酸酯保温板用组合聚醚及其制备方法 Pending CN104961878A (zh)

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