CN107722221A - 一种氧化铝纤维‑poss改性聚氨酯复合发泡保温隔热建筑材料及其制备方法 - Google Patents

一种氧化铝纤维‑poss改性聚氨酯复合发泡保温隔热建筑材料及其制备方法 Download PDF

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CN107722221A
CN107722221A CN201711053384.3A CN201711053384A CN107722221A CN 107722221 A CN107722221 A CN 107722221A CN 201711053384 A CN201711053384 A CN 201711053384A CN 107722221 A CN107722221 A CN 107722221A
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朱佳媚
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Abstract

本发明涉及一种氧化铝纤维‑POSS改性聚氨酯复合发泡保温隔热建筑材料及其制备方法,以重量份计组成如下,A组分:多异氰酸酯单体100~140份,增韧剂15~25份;B组分:发泡剂5~15份、聚醚多元醇40~80份、氨基取代的笼型聚倍半硅氧烷8~15份、催化剂0.2~0.5份、扩链剂6~12份、泡沫稳定剂4~8份、氧化铝纤维30~60份、阻燃剂1~3份。本发明具有以下优点:采用氨基取代的笼型聚倍半硅氧烷改性聚氨酯,增加了聚氨酯树脂的硬度与交联密度;采用导热率和加热收缩率都较低的氧化铝纤维作为增强填料,隔热性更好;氧化铝纤维具有高耐高温性,减少了阻燃剂的添加量,并同阻燃剂协同发挥阻燃效果。

Description

一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材 料及其制备方法
技术领域
本发明属于高分子材料合成领域,具体涉及一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料。
技术背景
聚氨酯是一种广泛应用的高分子材料,具有优异的物理机械性能及良好的耐水性。聚氨酯泡沫体是以树脂为基础,采用化学或物理方法在其内部产生无数小气孔而制成,孔孔相连的多孔聚氨酯海绵状泡沫材料体积密度小、比表面积大、吸附效率高,已经在催化剂载体、建筑、装饰、污水净化、血浆的过滤等方面得到了应用,但传统聚氨酯泡沫由于其内部反应温度高、强度低、阻燃差等问题,导致我国每年都会发生数起因房屋倒塌或自燃而造成的安全事故。
目前,生产聚氨酯发泡材料的方法主要是化学发泡法,即将各种原料如异氰酸酯、多元醇、催化剂、外发泡剂、交联剂等按一定比例混合均匀后注入模具中,在发生化学反应的同时进行发泡,发泡成型后从模具中取出即可得到一定形状和尺寸的发泡材料。这种方法的优点是可以大量、快速、方便地生产不同规格和形状的产品。
中国专利CN201310463539.6涉及一种无卤阻燃聚氨酯发泡塑料,按质量百分比计,它是由以下原料制备而成:水40-80%;1,4-环己烷二异氰酸酯10-20%;聚己二酸乙二醇酯二醇5-35%;扩链剂1,4-丁二醇2-5%;无卤阻燃剂1-5%;催化剂0.001-0.1%;泡沫稳定剂0.1-1%;抗氧剂0.2-0.8%。相对于现有技术,该发明采用水作为发泡剂,有效地避免了使用HCFC-141b等含氟发泡剂所带来的对环境造成的危害;通过加入无卤阻燃剂,提高了TPU发泡塑料的阻燃性能,并且由于使用的阻燃剂不含卤素,也不含铅、镉、汞和铬等重金属元素,符合欧盟VDE要求,是一种绿色环保的材料。但是该发明所述聚氨酯发泡塑料存在阻燃剂添加量大、强度低的缺点。
发明内容
为克服现有技术的缺点和不足,本发明的首要目的在于提供一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料。
本发明所述的一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料,为采用导热率、加热收缩率都较低的氧化铝纤维作为增强材料、同时采用氨基取代的笼型聚倍半硅氧烷(含氨基POSS)增强改性聚氨酯,通过室温合成所述复合发泡材料。所述复合发泡材料主要成分由A组分和B组分按照质量比1:0.9~1:1.5经常温混合搅拌制备而得;以质量份计组成如下,A组分:多异氰酸酯单体100~140份,增韧剂15~25份;B组分:发泡剂5~15份、聚醚多元醇40~80份、氨基取代的笼型聚倍半硅氧烷8~15份、催化剂0.2~0.5份、扩链剂6~12份、泡沫稳定剂4~8份、氧化铝纤维30~60份、阻燃剂1~3份。
所述氧化铝纤维的主晶结构呈γ-氧化铝、δ-氧化铝、θ-氧化铝、α-氧化铝中的至少一种,其单丝长度为10~150mm。
所述的氨基取代的笼型聚倍半硅氧烷为八氨基苯基POSS、八-3-氨基丙基POSS中的至少一种。
所述多异氰酸酯单体为二异氰酸甲苯酯、4,4′-二异氰酸二苯甲烷酯、二异氰酸异佛尔酮酯、二异氰酸六亚甲基酯中的至少一种。
所述增韧剂为磷酸酯、柠檬酸酯、醋酸酯、邻苯二甲酸酯中的至少一种。
所述发泡剂为碳酸氢钾、碳酸氢钙、偶氮二甲酰胺、丙酮、碳酸氢钠、异戊烷、正戊烷、石油醚发泡剂中的至少一种。
所述聚醚多元醇为聚氧化丙烯多元醇、聚四氢呋喃多元醇、四氢呋喃-氧化丙烯共聚多元醇或特种聚醚多元醇中的至少一种。
所述催化剂为二月桂酸二丁基锡、三乙烯二胺、三乙烯四胺、辛酸亚锡、环烷酸锡、环烷酸铅或环烷酸钴、马来酸二丁基锡、二乙酸二丁基锡、三乙胺、乙二胺、苯甲基缩水甘油醚中的至少一种。
所述扩链剂为乙二醇、1,4-丁二醇、1,4-丁二胺、1,6-己二醇、1,6-己二胺中的至少一种。
所述泡沫稳定剂为有机硅泡沫稳定剂、磺酸基类泡沫稳定剂中的至少一种。
所述阻燃剂为聚磷酸。
所述的氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料的制备方法如下:
(1)、A组分的制备:将多异氰酸酯单体、增韧剂加入反应釜,室温条件下混合搅拌0.5~1h,即制得A组分;
(2)、B组分的制备:将发泡剂、聚醚多元醇、氨基取代的笼型聚倍半硅氧烷、泡沫稳定剂、催化剂、氧化铝纤维、阻燃剂,加入反应釜,室温下混合搅拌1~2h,即制得B组分;
(3)、将A组分和B组分混合,充分搅拌均匀后,倒入模具中经发泡、熟化,脱模后,得所述的氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料。
相对现有技术,本发明一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料具有以下优点:(1)采用氨基取代的笼型聚倍半硅氧烷改性聚氨酯,增加了聚氨酯树脂的硬度与交联密度;(2)采用导热率和加热收缩率都较低的氧化铝纤维作为增强填料,所述复合材料相对于玻璃纤维-聚氨酯复合材料隔热性更好;(3)氧化铝纤维具有高耐高温性,减少了阻燃剂的添加量,并同阻燃剂协同发挥阻燃效果。
具体实施方式
实施例1
一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料,为采用导热率、加热收缩率都较低的氧化铝纤维作为增强材料、同时采用氨基取代的笼型聚倍半硅氧烷(含氨基POSS)增强改性聚氨酯,通过室温合成所述复合发泡材料;以质量份计组成如下,A组分:二异氰酸甲苯酯100份,醋酸酯15份;B组分:异戊烷15份、聚四氢呋喃多元醇70份、八氨基苯基POSS8份、三乙烯四胺0.5份、1,6-己二醇6份、有机硅泡沫稳定剂8份、氧化铝纤维60份、聚磷酸1份。
实施例2
一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料,为采用导热率、加热收缩率都较低的氧化铝纤维作为增强材料、同时采用氨基取代的笼型聚倍半硅氧烷(含氨基POSS)增强改性聚氨酯,通过室温合成所述复合发泡材料;以质量份计组成如下,A组分:4,4′-二异氰酸二苯甲烷酯140份,邻苯二甲酸酯25份;B组分:石油醚发泡剂9份、四氢呋喃-氧化丙烯共聚多元醇80份、八-3-氨基丙基POSS15份、二月桂酸二丁基锡0.2份、1,4-丁二胺12份、有机硅泡沫稳定剂4份、氧化铝纤维50份、聚磷酸3份。
实施例3
一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料,为采用导热率、加热收缩率都较低的氧化铝纤维作为增强材料、同时采用氨基取代的笼型聚倍半硅氧烷(含氨基POSS)增强改性聚氨酯,通过室温合成所述复合发泡材料;以质量份计组成如下,A组分:二异氰酸六亚甲基酯115份,柠檬酸酯22份;B组分:正戊烷12份、聚氧化丙烯多元醇40份、氨基取代的笼型聚倍半硅氧烷10份、二乙酸二丁基锡0.4份、1,4-丁二醇9份、磺酸基类泡沫稳定剂7份、氧化铝纤维30份、聚磷酸1.5份。
一种实施例1、实施例2、实施例3中所述的氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料制备方法如下:
(1)、A组分的制备:将多异氰酸酯单体、增韧剂加入反应釜,室温条件下混合搅拌0.5~1h,即制得A组分;
(2)、B组分的制备:将发泡剂、聚醚多元醇、氨基取代的笼型聚倍半硅氧烷、泡沫稳定剂、催化剂、氧化铝纤维、阻燃剂,加入反应釜,室温下混合搅拌1~2h,即制得B组分;
(3)、将A组分和B组分混合,充分搅拌均匀后,倒入模具中经发泡、熟化,脱模后,得所述的氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料。
实施例1、实施例2、实施例3与市售发泡材料一些检测数据如下表:
Shore A硬度 拉伸强度(MPa) 阻燃等级
实施例1 79 19.2 V0
实施例2 81 19.7 V0
实施例3 74 16.6 V0
市售发泡材料 62 12.8 V-1

Claims (10)

1.一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料,其特征在于:采用氧化铝纤维作为增强材料,采用氨基取代的笼型聚倍半硅氧烷来增强改性聚氨酯,通过室温合成所得,其中氧化铝纤维的主晶结构呈γ-氧化铝、δ-氧化铝、θ-氧化铝、α-氧化铝中的至少一种,氨基取代的笼型聚倍半硅氧烷为八氨基苯基POSS、八-3-氨基丙基POSS中的至少一种。
2.一种根据权利要求1所述的氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料的制备方法,其特征在于,包括如下步骤:
(1)、A组分的制备:将多异氰酸酯单体、增韧剂加入反应釜,室温条件下混合搅拌0.5~1h,即制得A组分;
(2)、B组分的制备:将发泡剂、聚醚多元醇、氨基取代的笼型聚倍半硅氧烷、泡沫稳定剂、催化剂、氧化铝纤维、阻燃剂,加入反应釜,室温下混合搅拌1~2h,即制得B组分;
(3)、将A组分和B组分混合,充分搅拌均匀后,倒入模具中经发泡、熟化,脱模后,得所述的氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料。
3.根据权利要求2所述的一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料的制备方法,其特征在于,上述组分以质量份计如下,A组分:多异氰酸酯单体100~140份,增韧剂15~25份;B组分:发泡剂5~15份、聚醚多元醇40~80份、氨基取代的笼型聚倍半硅氧烷8~15份、催化剂0.2~0.5份、扩链剂6~12份、泡沫稳定剂4~8份、氧化铝纤维30~60份、阻燃剂1~3份。
4.根据权利要求3所述的一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料的制备方法,其特征在于,所述氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料由A组分和B组分按照质量比1:0.9~1:1.5经常温混合搅拌制备而得。
5.根据权利要求3所述的一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料的制备方法,其特征在于:所述氧化铝纤维的主晶结构呈γ-氧化铝、δ-氧化铝、θ-氧化铝、α-氧化铝中的至少一种,其单丝长度为10~150mm;所述的氨基取代的笼型聚倍半硅氧烷为八氨基苯基POSS、八-3-氨基丙基POSS中的至少一种。
6.根据权利要求3所述的一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料的制备方法,其特征在于:所述多异氰酸酯单体为二异氰酸甲苯酯、4,4′-二异氰酸二苯甲烷酯、二异氰酸异佛尔酮酯、二异氰酸六亚甲基酯至少一种;所述增韧剂为磷酸酯、柠檬酸酯、醋酸酯、邻苯二甲酸酯中的至少一种。
7.根据权利要求3所述的一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料的制备方法,其特征在于:所述发泡剂为碳酸氢钾、碳酸氢钙、偶氮二甲酰胺、丙酮、碳酸氢钠、异戊烷、正戊烷、石油醚发泡剂中的至少一种。
8.根据权利要求3所述的一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料的制备方法,其特征在于:所述聚醚多元醇为聚氧化丙烯多元醇、聚四氢呋喃多元醇、四氢呋喃-氧化丙烯共聚多元醇或特种聚醚多元醇中的至少一种。
9.根据权利要求3所述的一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料的制备方法,其特征在于:所述催化剂为二月桂酸二丁基锡、三乙烯二胺、三乙烯四胺、辛酸亚锡、环烷酸锡、环烷酸铅或环烷酸钴、马来酸二丁基锡、二乙酸二丁基锡、三乙胺、乙二胺、苯甲基缩水甘油醚中的至少一种。
10.根据权利要求2或3所述的一种氧化铝纤维-POSS改性聚氨酯复合发泡保温隔热建筑材料的制备方法,其特征在于:所述扩链剂为乙二醇、1,4-丁二醇、1,4-丁二胺、1,6-己二醇、1,6-己二胺中的至少一种;所述泡沫稳定剂为有机硅泡沫稳定剂、磺酸基类泡沫稳定剂中的至少一种;所述阻燃剂为聚磷酸。
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