CN105400094A - 一种隔热聚苯乙烯泡沫材料 - Google Patents
一种隔热聚苯乙烯泡沫材料 Download PDFInfo
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Abstract
本发明公开了一种隔热聚苯乙烯泡沫材料,其组成成份为:PS、滑石粉、氯代甲烷、铝粉、硬脂酸钙、丁烷、戊烷、液体石蜡、二甲苯烷二异氰酸酯、一氟二氯乙烷、全氟正戊烷、二氧化钛、抗氧剂、阻燃剂、ABS和硅藻土;相对密度0.026-0.03,热导率0.01-0.03W/(m·K);孔隙率95-99%,压缩强度2.8-3.2MPa;弯曲强度0.3-0.7MPa,泡孔直径0.1-0.3mm;热变形温度120-140℃,悬臂梁冲击强度100-120J/m,氧指数34%-40%。
Description
技术领域
本发明属于隔热塑料领域,尤其涉及一种隔热聚苯乙烯泡沫材料。
背景技术
隔热材料又称热绝缘材料,能阻滞热流传递的材料。隔热材料分为多孔材料、热反射材料和真空材料三类。传统绝热材料,如玻璃纤维、石棉、岩棉、硅酸盐等;新型绝热材料,如气凝胶毡、真空板等。隔热材料的物质构成不同,其物理热性能也就不同;隔热机理存有区别,其导热性能或导热系数也就各有差异。隔热材料中,大部分热量是从孔隙中的气体传导的。隔热材料的比热对于计算绝热结构在冷却与加热时所需要冷量(或热量)有关。
隔热材料分为多孔材料、热反射材料和真空材料三类。前者利用材料本身所含的孔隙隔热,因为空隙内的空气或惰性气体的导热系数很低,如泡沫材料、纤维材料等;热反射材料具有很高的反射系数,能将热量反射出去,如金、银、镍、铝箔或镀金属的聚酯、聚酰亚胺薄膜等。真空绝热材料是利用材料的内部真空达到阻隔对流来隔热。航空航天工业对所用隔热材料的重量和体积要求较为苛刻,往往还要求它兼有隔音、减振、防腐蚀等性能。各种飞行器对隔热材料的需要不尽相同。飞机座舱和驾驶舱内常用泡沫塑料、超细玻璃棉、高硅氧棉、真空隔热板来隔热。导弹头部用的隔热材料早期是酚醛泡沫塑料,随着耐温性好的聚氨酯泡沫塑料的应用,又将单一的隔热材料发展为夹层结构。导弹仪器舱的隔热方式是在舱体外蒙皮上涂一层数毫米厚的发泡涂料,在常温下作为防腐蚀涂层,当气动加热达到200°C以上时,便均匀发泡而起隔热作用。人造地球卫星是在高温、低温交变的环境中运动,须使用高反射性能的多层隔热材料,一般是由几十层镀铝薄膜、镀铝聚酯薄膜、镀铝聚酰亚胺薄膜组成。另外,表面隔热瓦的研制成功解决了航天飞机的隔热问题,同时也标志着隔热材料发展的更高水平。
即使对于同一物质构成的隔热材料,内部结构不同,或生产的控制工艺不同,导热系数的差别有时也很大。对于孔隙率较低的固体隔热材料,结晶结构的导热系数最大,微晶体结构的次之,玻璃体结构的最小。但对于孔隙率高的隔热材料,由于气体(空气)对导热系数的影响起主要作用,固体部分无论是晶态结构还是玻璃态结构,对导热系数的影响都不大。
温度对各类绝热材料导热系数均有直接影响,温度提高,材料导热系数上升。因为温度升高时,材料固体分子的热运动增强,同时材料孔隙中空气的导热和孔壁间的辐射作用也有所增加。但这种影响,在温度为0-50℃范围内并不显着,只有对处于高温或负温下的材料,才要考虑温度的影响。
绝热材料一方面满足了建筑空间或热工设备的热环境,另一方面也节约了能源。因此,有些国家将绝热材料看作是继煤炭、石油、天然气、核能之后的“第五大能”。随着社会城市化、科技化的发展,随着人性化理念的普及,及新型和谐社会的构成,设计一种热导率低、弯曲强度高、压缩强度高、开孔率大和热变形温度高的隔热聚苯乙烯泡沫材料是很重要的。
发明内容
本发明提供一种隔热聚苯乙烯泡沫材料,解决现有塑料材料中的阻燃性差、热变形温度低、热导率高和冲击强度低等技术问题。
本发明采用以下技术方案:
一种隔热聚苯乙烯泡沫材料,由下列原料组成,按质量份数配比为:PS100份;滑石粉0.2-0.8份;氯代甲烷2-6份;铝粉12-18份;硬脂酸钙0.1-0.5份;丁烷6-10份;戊烷4-8份;液体石蜡1.5-5.5份;二甲苯烷二异氰酸酯40-80份;硅藻土10-30份;一氟二氯乙烷5-25份;全氟正戊烷1-5份;二氧化钛1.5-3.5份;抗氧剂0.5-2.5份;阻燃剂6-10份;ABS20-40份。
作为本发明的一种优选技术方案:所述隔热聚苯乙烯泡沫材料组成成份按质量份数配比为:PS100份;滑石粉0.3份;氯代甲烷3份;铝粉14份;硬脂酸钙0.2份;丁烷7份;戊烷5份;液体石蜡2.5份;二甲苯烷二异氰酸酯50份;硅藻土15份;一氟二氯乙烷10份;全氟正戊烷2份;二氧化钛2份;抗氧剂1份;阻燃剂7份;ABS25份。
作为本发明的一种优选技术方案:所述隔热聚苯乙烯泡沫材料组成成份按质量份数配比为:PS100份;滑石粉0.7份;氯代甲烷5份;铝粉16份;硬脂酸钙0.4份;丁烷9份;戊烷7份;液体石蜡4.5份;二甲苯烷二异氰酸酯70份;硅藻土25份;一氟二氯乙烷20份;全氟正戊烷4份;二氧化钛3份;抗氧剂2份;阻燃剂9份;ABS35份。
作为本发明的一种优选技术方案:所述隔热聚苯乙烯泡沫材料组成成份按质量份数配比为:PS100份;滑石粉0.5份;氯代甲烷4份;铝粉15份;硬脂酸钙0.3份;丁烷8份;戊烷6份;液体石蜡3.5份;二甲苯烷二异氰酸酯60份;硅藻土20份;一氟二氯乙烷15份;全氟正戊烷3份;二氧化钛2.5份;抗氧剂1.5份;阻燃剂8份;ABS30份。
作为本发明的一种优选技术方案:所述抗氧剂采用抗氧剂1010或抗氧剂168。
作为本发明的一种优选技术方案:所述阻燃剂采用四溴双酚A阻燃剂或三氧化二锑阻燃剂。
本发明使用的所有原料均为共知的已有,使用方法和功能均为已有技术。
有益效果
本发明一种隔热聚苯乙烯泡沫材料采用以上技术方案与现有技术相比,具有以下技术效果:1、本申请中PS、滑石粉、铝粉和硬脂酸钙搭配使用,组份之间产生协同作用,相对密度0.026-0.03,热导率0.01-0.03W/(m·K);2、通过戊烷、氯代甲烷、丁烷和一氟二氯乙烷的组合使用,产生孔隙率95-99%,压缩强度2.8-3.2MPa;3、液体石蜡、二甲苯烷二异氰酸酯和硅藻土的搭配使用,产品弯曲强度0.3-0.7MPa,泡孔直径0.1-0.3mm;4、原料易得,采用全氟正戊烷、二氧化钛和其他组份之间协同作用,带来热变形温度120-140℃,悬臂梁冲击强度100-120J/m,氧指数34%-40%,会得到广泛使用,并不断替代现有材料。
具体实施方式
以下通过实施例更加详细地阐述本发明的内容。
实施例1
按照质量份数比称取:PS100份;滑石粉0.2份;氯代甲烷2份;铝粉12份;硬脂酸钙0.1份;丁烷6份;戊烷4份;液体石蜡1.5份;二甲苯烷二异氰酸酯40份;硅藻土10份;一氟二氯乙烷5份;全氟正戊烷1份;二氧化钛1.5份;抗氧剂168为0.5份;三氧化二锑阻燃剂6份;ABS20份。
在装有搅拌器、温度计的反应釜中,先将PS、滑石粉、铝粉和硬脂酸钙在200℃下混合10min;
加入戊烷、氯代甲烷、丁烷和一氟二氯乙烷,冷却到100℃,搅拌20min,再加入液体石蜡、二甲苯烷二异氰酸酯、硅藻土、全氟正戊烷和二氧化钛,升温至120℃,转速在800r/min条件下,搅拌30min;
加入剩余原料,混合40min,然后倒入模具中于室温下发泡,在50-90℃温度下固化80min,并于室温置放1天即得。
本申请中PS、滑石粉、铝粉和硬脂酸钙搭配使用,组份之间产生协同作用,从而带来,相对密度0.03,热导率0.03W/(m·K);通过戊烷、氯代甲烷、丁烷和一氟二氯乙烷的组合使用,产生孔隙率95%,压缩强度2.8MPa;液体石蜡、二甲苯烷二异氰酸酯和硅藻土的搭配使用,产品弯曲强度0.3MPa,泡孔直径0.1mm;原料易得,采用全氟正戊烷、二氧化钛和其他组份之间协同作用,带来热变形温度120℃,悬臂梁冲击强度100J/m,氧指数34%。
实施例2
按照质量份数比称取:PS100份;滑石粉0.8份;氯代甲烷6份;铝粉18份;硬脂酸钙0.5份;丁烷10份;戊烷8份;液体石蜡5.5份;二甲苯烷二异氰酸酯80份;硅藻土30份;一氟二氯乙烷25份;全氟正戊烷5份;二氧化钛3.5份;抗氧剂168为2.5份;三氧化二锑阻燃剂10份;ABS40份。
在装有搅拌器、温度计的反应釜中,先将PS、滑石粉、铝粉和硬脂酸钙在220℃下混合30min;
加入戊烷、氯代甲烷、丁烷和一氟二氯乙烷,冷却到120℃,搅拌40min,再加入液体石蜡、二甲苯烷二异氰酸酯、硅藻土、全氟正戊烷和二氧化钛,升温至140℃,转速在1000r/min条件下,搅拌50min;
加入剩余原料,混合60min,然后倒入模具中于室温下发泡,在50-90℃温度下固化120min,并于室温置放5天即得。
本申请中PS、滑石粉、铝粉和硬脂酸钙搭配使用,组份之间产生协同作用,从而带来,相对密度0.029,热导率0.025W/(m·K);通过戊烷、氯代甲烷、丁烷和一氟二氯乙烷的组合使用,产生孔隙率96%,压缩强度2.9MPa;液体石蜡、二甲苯烷二异氰酸酯和硅藻土的搭配使用,产品弯曲强度0.4MPa,泡孔直径0.15mm;原料易得,采用全氟正戊烷、二氧化钛和其他组份之间协同作用,带来热变形温度125℃,悬臂梁冲击强度105J/m,氧指数35%。
实施例3
按照质量份数比称取:PS100份;滑石粉0.3份;氯代甲烷3份;铝粉14份;硬脂酸钙0.2份;丁烷7份;戊烷5份;液体石蜡2.5份;二甲苯烷二异氰酸酯50份;硅藻土15份;一氟二氯乙烷10份;全氟正戊烷2份;二氧化钛2份;抗氧剂1010为1份;三氧化二锑阻燃剂7份;ABS25份。
在装有搅拌器、温度计的反应釜中,先将PS、滑石粉、铝粉和硬脂酸钙在200℃下混合10min;
加入戊烷、氯代甲烷、丁烷和一氟二氯乙烷,冷却到100℃,搅拌20min,再加入液体石蜡、二甲苯烷二异氰酸酯、硅藻土、全氟正戊烷和二氧化钛,升温至120-140℃,转速在800r/min条件下,搅拌30min;
加入剩余原料,混合40min,然后倒入模具中于室温下发泡,在50℃温度下固化80min,并于室温置放1天即得。
本申请中PS、滑石粉、铝粉和硬脂酸钙搭配使用,组份之间产生协同作用,从而带来,相对密度0.028,热导率0.02W/(m·K);通过戊烷、氯代甲烷、丁烷和一氟二氯乙烷的组合使用,产生孔隙率97%,压缩强度3MPa;液体石蜡、二甲苯烷二异氰酸酯和硅藻土的搭配使用,产品弯曲强度0.5MPa,泡孔直径0.2mm;原料易得,采用全氟正戊烷、二氧化钛和其他组份之间协同作用,带来热变形温度130℃,悬臂梁冲击强度110J/m,氧指数37%。
实施例4
按照质量份数比称取:PS100份;滑石粉0.7份;氯代甲烷5份;铝粉16份;硬脂酸钙0.4份;丁烷9份;戊烷7份;液体石蜡4.5份;二甲苯烷二异氰酸酯70份;硅藻土25份;一氟二氯乙烷20份;全氟正戊烷4份;二氧化钛3份;抗氧剂1010为2份;四溴双酚A阻燃剂9份;ABS35份。
在装有搅拌器、温度计的反应釜中,先将PS、滑石粉、铝粉和硬脂酸钙在220℃下混合30min;
加入戊烷、氯代甲烷、丁烷和一氟二氯乙烷,冷却到120℃,搅拌40min,再加入液体石蜡、二甲苯烷二异氰酸酯、硅藻土、全氟正戊烷和二氧化钛,升温至140℃,转速在1000r/min条件下,搅拌50min;
加入剩余原料,混合60min,然后倒入模具中于室温下发泡,在90℃温度下固化120min,并于室温置放5天即得。
本申请中PS、滑石粉、铝粉和硬脂酸钙搭配使用,组份之间产生协同作用,从而带来,相对密度0.027,热导率0.015W/(m·K);通过戊烷、氯代甲烷、丁烷和一氟二氯乙烷的组合使用,产生孔隙率98%,压缩强度3.1MPa;液体石蜡、二甲苯烷二异氰酸酯和硅藻土的搭配使用,产品弯曲强度0.6MPa,泡孔直径0.25mm;原料易得,采用全氟正戊烷、二氧化钛和其他组份之间协同作用,带来热变形温度135℃,悬臂梁冲击强度115J/m,氧指数38%。
实施例5
按照质量份数比称取:PS100份;滑石粉0.5份;氯代甲烷4份;铝粉15份;硬脂酸钙0.3份;丁烷8份;戊烷6份;液体石蜡3.5份;二甲苯烷二异氰酸酯60份;硅藻土20份;一氟二氯乙烷15份;全氟正戊烷3份;二氧化钛2.5份;抗氧剂1010为1.5份;四溴双酚A阻燃剂8份;ABS30份。
在装有搅拌器、温度计的反应釜中,先将PS、滑石粉、铝粉和硬脂酸钙在210℃下混合20min;
加入戊烷、氯代甲烷、丁烷和一氟二氯乙烷,冷却到110℃,搅拌30min,再加入液体石蜡、二甲苯烷二异氰酸酯、硅藻土、全氟正戊烷和二氧化钛,升温至130℃,转速在900r/min条件下,搅拌40min;
加入剩余原料,混合50min,然后倒入模具中于室温下发泡,在70℃温度下固化100min,并于室温置放1-5天即得。
本申请中PS、滑石粉、铝粉和硬脂酸钙搭配使用,组份之间产生协同作用,从而带来,相对密度0.026,热导率0.01W/(m·K);通过戊烷、氯代甲烷、丁烷和一氟二氯乙烷的组合使用,产生孔隙率99%,压缩强度3.2MPa;液体石蜡、二甲苯烷二异氰酸酯和硅藻土的搭配使用,产品弯曲强度0.7MPa,泡孔直径0.3mm;原料易得,采用全氟正戊烷、二氧化钛和其他组份之间协同作用,带来热变形温度140℃,悬臂梁冲击强度120J/m,氧指数40%。
上述实施例只是用于对本发明的内容进行阐述,而不是限制,因此在与本发明的权利要求书相当的含义和范围内的任何改变,都应该认为是包括在权利要求书的范围内。
Claims (6)
1.一种隔热聚苯乙烯泡沫材料,其特征在于:其组成成份按质量份数配比为:PS100份;滑石粉0.2-0.8份;氯代甲烷2-6份;铝粉12-18份;硬脂酸钙0.1-0.5份;丁烷6-10份;戊烷4-8份;液体石蜡1.5-5.5份;二甲苯烷二异氰酸酯40-80份;硅藻土10-30份;一氟二氯乙烷5-25份;全氟正戊烷1-5份;二氧化钛1.5-3.5份;抗氧剂0.5-2.5份;阻燃剂6-10份;ABS20-40份。
2.根据权利要求1所述的一种隔热聚苯乙烯泡沫材料,其特征在于:所述隔热聚苯乙烯泡沫材料组成成份按质量份数配比为:PS100份;滑石粉0.3份;氯代甲烷3份;铝粉14份;硬脂酸钙0.2份;丁烷7份;戊烷5份;液体石蜡2.5份;二甲苯烷二异氰酸酯50份;硅藻土15份;一氟二氯乙烷10份;全氟正戊烷2份;二氧化钛2份;抗氧剂1份;阻燃剂7份;ABS25份。
3.根据权利要求1所述的一种隔热聚苯乙烯泡沫材料,其特征在于:所述隔热聚苯乙烯泡沫材料组成成份按质量份数配比为:PS100份;滑石粉0.7份;氯代甲烷5份;铝粉16份;硬脂酸钙0.4份;丁烷9份;戊烷7份;液体石蜡4.5份;二甲苯烷二异氰酸酯70份;硅藻土25份;一氟二氯乙烷20份;全氟正戊烷4份;二氧化钛3份;抗氧剂2份;阻燃剂9份;ABS35份。
4.根据权利要求1所述的一种隔热聚苯乙烯泡沫材料,其特征在于:所述隔热聚苯乙烯泡沫材料组成成份按质量份数配比为:PS100份;滑石粉0.5份;氯代甲烷4份;铝粉15份;硬脂酸钙0.3份;丁烷8份;戊烷6份;液体石蜡3.5份;二甲苯烷二异氰酸酯60份;硅藻土20份;一氟二氯乙烷15份;全氟正戊烷3份;二氧化钛2.5份;抗氧剂1.5份;阻燃剂8份;ABS30份。
5.根据权利要求1-4任一项所述的一种隔热聚苯乙烯泡沫材料,其特征在于:所述抗氧剂采用抗氧剂1010或抗氧剂168。
6.根据权利要求1-4任一项所述的一种隔热聚苯乙烯泡沫材料,其特征在于:所述阻燃剂采用四溴双酚A阻燃剂或三氧化二锑阻燃剂。
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