CN109280147A - 聚氨酯间歇板用戊烷型高阻燃组合聚醚及其制备方法 - Google Patents

聚氨酯间歇板用戊烷型高阻燃组合聚醚及其制备方法 Download PDF

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CN109280147A
CN109280147A CN201811130526.6A CN201811130526A CN109280147A CN 109280147 A CN109280147 A CN 109280147A CN 201811130526 A CN201811130526 A CN 201811130526A CN 109280147 A CN109280147 A CN 109280147A
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李明友
杜孝林
唐国涛
殷晓峰
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Abstract

本发明涉及一种聚氨酯间歇板用戊烷型高阻燃组合聚醚及其制备方法,属于聚氨酯技术领域。所述的戊烷型高阻燃组合聚醚,由A组分和B组分以质量比1:1.3‑2制成,其中,A组分由下列质量分数的物质组成:聚醚多元醇10~30%;聚酯多元醇30~50%;交联剂3~5%;匀泡剂1.5~2%;水1~1.5%;复合催化剂1.5~2%;阻燃剂20~30%;发泡剂7~10%。制得的硬质聚氨酯泡沫具有良好地尺寸稳定性、较高的压缩强度及较低的导热系数。本发明所提供的制备方法,科学合理,简单易行。

Description

聚氨酯间歇板用戊烷型高阻燃组合聚醚及其制备方法
技术领域
本发明涉及一种聚氨酯间歇板用戊烷型高阻燃组合聚醚及其制备方法,属于聚氨酯技术领域。
背景技术
聚氨酯硬泡是一种优良的绝热保温材料,作为一种有机材料聚氨酯硬泡结构中存在微小的网状结构,具有较大的比表面积,因此聚氨酯硬泡容易燃烧。此外,燃烧过程中会释放一些有毒气体且烟雾较大,在建筑领域中较为关注聚氨酯硬泡的阻燃性能。随着环保形势的压力,聚氨酯硬泡的发泡剂替代正在向着无氟环保,生产成本及GWP值低,导热系数及流动性能好的方向进行,环戊烷是国际上公认的HCFC-141B的替代品。
发明内容
针对现有技术的不足,本发明的目的是提供一种聚氨酯间歇板用戊烷型高阻燃组合聚醚,具有优异的流动性,通过浇筑成型,制得的硬质聚氨酯泡沫具有良好地尺寸稳定性、较高的压缩强度及较低的导热系数。
同时,本发明还提供其制备方法,科学合理,简单易行。
本发明所述的聚氨酯间歇板用戊烷型高阻燃组合聚醚,由A组分和B组分以质量比1:1.3-2制成,其中,A组分由下列质量分数的物质组成:
所述的聚醚多元醇羟值为400~430,官能度为4.37~5.3,25℃下的黏度为6000~7000mpa.s,水分小于0.1wt%;为INOVL R6001C产品。
所述的聚酯多元醇是高阻燃苯酐聚酯,官能度为2,羟值为230~250mgKOH/g,25℃下的黏度为2000~4500mpa.s,水分小于0.1wt%;优选南京金陵斯泰潘化学有限公司的PS-2352聚酯多元醇。
所述的交联剂为四官能度的聚醚多元醇或小分子醇中的一种或几种。
优选的,聚醚多元醇为INOVOL R403,羟值745~775,官能度为4.0,50℃下的黏度为1400~2400mpa.s,水分小于0.1wt%;小分子交联剂优选为三乙醇胺(TEA)。
所述的阻燃剂为磷酸三(2-氯-1-甲基乙基)酯(TCPP)、磷酸三(β-氯乙基)酯(TCEP)或甲基膦酸二甲酯(DMMP)中的一种或多种。
所述的匀泡剂为硬质聚氨酯泡沫领域常规使用的各种泡沫稳定剂。优选地为硅酮类泡沫稳定剂,更为优选的为赢创德固赛公司生产的泡沫稳定剂B8545、迈图高新材料集团生产的泡沫稳定剂L6863或南京美思德公司生产的泡沫稳定剂AK-8863中的一种。
所述的复合催化剂为本领域常规使用的复合催化剂;优选的是胺类催化剂的复合;更为优选的是叔胺类催化剂的复合;最优选的是美国Air Products公司生产的N,N’-二甲基环己胺、N,N’-二甲基苄胺和Dabco TMR-2混合而成的复合催化剂。
所述的发泡剂为戊烷发泡剂;是环戊烷、异戊烷或正戊烷中的一种或多种;更优选的是正戊烷。
本发明所述的聚氨酯间歇板用戊烷型高阻燃组合聚醚的制备方法,包括以下步骤:称取质量比例的各组分物质,加入混合釜中,在常温下搅拌混合均匀,通过浇筑成型得到产品。
优选的,所述的混合釜为不锈钢混合釜。
所述的搅拌转速为100-150转/分钟,搅拌时间为0.5小时。
所述的B组分为聚氨酯硬泡常用的异氰酸酯,优选的为多苯基多亚甲基多异氰酸酯,简称聚合MDI。
优选的,所述的异氰酸酯为万华聚氨酯股份有限公司生产的异氰酸酯PM-200或PM400;
其中,所述浇注成型的方法和条件可为本领域常规的方法和条件。
所述浇注成型优选在模具中,模具较佳温度在40-60℃,最佳为55-60℃。
所述浇注的模具可以为建筑行业中常规使用的材料,所述的基材较佳的为彩钢板。
所述原料均市售可得。
与现有技术相比,本发明具有如下有益效果:
1.所述的组合聚醚采用戊烷作为发泡剂,其臭氧消耗潜值(ODP)为零,全球变暖潜值(GWP)较低,是HCFC-141b发泡剂理想的替代品;
2.所述的组合聚醚具有优异的流动性,所制备的硬质聚氨酯泡沫具有良好地尺寸稳定性、较高的压缩强度及较低的导热系数;
3.制得的硬质聚氨酯泡沫具有优异的阻燃性能,使用过程中烟密度低,对环境友好;
4.所述的组合聚醚,符合硬质聚氨酯泡沫板材间歇式、批量化生产的工艺要求,具有较高的可操作性,在建筑行业有广泛的应用前景。
具体实施方式
下面结合实施例对本发明做进一步的说明。
实施例1
A组分:聚醚多元醇INOVOL R6001C 20份,聚酯多元醇PS-2352 40份,交联剂聚醚INOVL R403 5份,泡沫稳定剂B8545 2份,复合催化剂1.7份,H2O 1.3份,阻燃剂TCPP 20份,发泡剂环戊烷10份。
根据上述配方,将各组分按照比例加入不锈钢釜内进行混合,25-30℃之间以120转/分的转速搅拌0.5小时,放料作为A组分。
B组分为万华化学股份有限公司的异氰酸酯PM200。
将A、B组分按质量比1:1.5于22℃下混合,在3000r/min的转速下搅拌8s,置于30cm*30cm*10cm的方模,方模温度设定在55℃,30min开模后室温熟化72h后测试相关性能。
实施例2
A组分:聚醚多元醇INOVOL R6001C 22份,聚酯多元醇PS-2352 30份,交联剂聚醚INOVL R403 4份,泡沫稳定剂B8545 1.5份,复合催化剂1.5份,H2O 1.2份,阻燃剂TCPP 30份,发泡剂环戊烷7份、异戊烷3份。
B组分为万华化学股份有限公司的异氰酸酯PM200。
将A、B组分按质量比1:1.5于22℃下混合,在3000r/min的转速下搅拌8s,置于30cm*30cm*10cm的方模,方模温度设定在55℃,30min开模后室温熟化72h后测试相关性能。
实施例3
A组分:聚醚多元醇INOVOL R6001C 30份,聚酯多元醇PS-2352 50份,交联剂聚醚INOVL R403 4份,泡沫稳定剂B8545 2份,复合催化剂2份,H2O 1.3份,阻燃剂TCPP 25份,发泡剂正戊烷10份。
B组分为万华化学股份有限公司的异氰酸酯PM400。
将A、B组分按质量比1:1.5于22℃下混合,在3000r/min的转速下搅拌8s,置于30cm*30cm*10cm的方模,方模温度设定在55℃,30min开模后室温熟化72h后测试相关性能。
对比例1
对比例为常规配方和工艺
A组分:聚醚多元醇INOVOL R6001C 40份,聚酯多元醇PS-2352 20份,交联剂聚醚INOVL R403 5份,泡沫稳定剂B8545 2份,复合催化剂1.7份,H2O 1.5份,阻燃剂TCPP 20份,发泡剂HCFC-141b 18份。
B组分为万华化学股份有限公司的异氰酸酯PM200。
将A、B组分按质量比1:1.5于22℃下混合,在3000r/min的转速下搅拌8s,置于30cm*30cm*10cm的方模,方模温度设定在55℃,30min开模后室温熟化72h后测试相关性能。
对实施例1-3产品和对比例1产品进行性能检测,检测结果见表1。
表1实施例和对比例产品性能检测结果
测试结果如表1所示,戊烷发泡剂制备的组合聚醚各项指标均达到国家标准,且正戊烷发泡剂的综合性能指标优于发泡剂为环戊烷和环戊烷与异戊烷质量比7:3的发泡剂。

Claims (8)

1.一种聚氨酯间歇板用戊烷型高阻燃组合聚醚,其特征在于:由A组分和B组分以质量比1:1.3-2制成,其中,A组分由下列质量分数的物质组成:
2.根据权利要求1所述的聚氨酯间歇板用戊烷型高阻燃组合聚醚,其特征在于:聚醚多元醇羟值为400~430,官能度为4.37~5.3,25℃下的黏度为6000~7000mpa.s,水分小于0.1wt%。
3.根据权利要求1所述的聚氨酯间歇板用戊烷型高阻燃组合聚醚,其特征在于:聚酯多元醇是高阻燃苯酐聚酯,官能度为2,羟值为230~250mgKOH/g,25℃下的黏度为2000~4500mpa.s,水分小于0.1wt%。
4.根据权利要求1所述的聚氨酯间歇板用戊烷型高阻燃组合聚醚,其特征在于:交联剂为四官能度的聚醚多元醇或小分子醇中的一种或几种。
5.根据权利要求1所述的聚氨酯间歇板用戊烷型高阻燃组合聚醚,其特征在于:阻燃剂为磷酸三(2-氯-1-甲基乙基)酯、磷酸三(β-氯乙基)酯或甲基膦酸二甲酯中的一种或多种。
6.根据权利要求1所述的聚氨酯间歇板用戊烷型高阻燃组合聚醚,其特征在于:发泡剂为戊烷发泡剂;是环戊烷、异戊烷或正戊烷中的一种或几种。
7.一种权利要求1所述的聚氨酯间歇板用戊烷型高阻燃组合聚醚的制备方法,其特征在于:包括以下步骤:称取质量比例的各组分物质,在常温下搅拌混合均匀。
8.根据权利要求7所述的聚氨酯间歇板用戊烷型高阻燃组合聚醚的制备方法,其特征在于:搅拌转速为100-150转/分钟,搅拌时间为0.5小时。
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Cited By (2)

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CN110330621A (zh) * 2019-08-07 2019-10-15 河南铎润新材料有限公司 一种具有高阻燃效果的聚氨酯泡沫材料及其制成的冷库板
CN114381111A (zh) * 2021-11-30 2022-04-22 山东一诺威新材料有限公司 戊烷型多组分高阻燃聚氨酯复合酚醛连续板组合料及其制备方法

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