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CN111961333A - 一种基于石墨材料的聚氨酯发泡产品制备配方 - Google Patents

一种基于石墨材料的聚氨酯发泡产品制备配方 Download PDF

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Publication number
CN111961333A
CN111961333A CN202010891325.9A CN202010891325A CN111961333A CN 111961333 A CN111961333 A CN 111961333A CN 202010891325 A CN202010891325 A CN 202010891325A CN 111961333 A CN111961333 A CN 111961333A
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China
Prior art keywords
polyurethane foaming
parts
heat conducting
insulating
heat
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CN202010891325.9A
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陈峻
崔青天
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Ningbo Yaozhong Molding Technology Co ltd
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Ningbo Yaozhong Molding Technology Co ltd
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Priority to CN202010891325.9A priority Critical patent/CN111961333A/zh
Publication of CN111961333A publication Critical patent/CN111961333A/zh
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Abstract

本发明公开了一种基于石墨材料的聚氨酯发泡产品制备配方，在聚氨酯发泡原料中添加导电导热材料绝缘导热材料，提高聚氨酯发泡产品的热导率和平行导电性，生产过程中通过改变导电导热材料绝缘导热材料的层数实现导热和导电性能的调节，无需再对其产品本身进行成分改造，方便生产，采用石墨纤维作为主要的强化纤维，材料含碳量大大提高，力学性能更佳，在聚氨酯发泡原料中添加钛白粉和光反射涂料，提高产品对红外光线的反射率，从而隔绝聚氨酯发泡产品内外两侧的温度，保温隔热效果更佳，添加的光反射颜料能够对紫外线进行反射，避免聚氨酯发泡产品在长期日晒状态下发生光化学反应，延长产品使用寿命。

Description

一种基于石墨材料的聚氨酯发泡产品制备配方
技术领域
本发明涉及高分子材料技术领域，尤其涉及一种基于石墨材料的聚氨酯发泡产品制备配方。
背景技术
聚氨酯发泡产品是采用聚氨酯硬质泡沫制成的产品，聚氨酯硬质泡沫是以异氰酸酯和聚醚为主要原料，在发泡剂、催化剂和阻燃剂等多种助剂的作用下，通过专用设备混合，经高压喷涂现场发泡而成的高分子聚合物，由于其导热系数低，常作为建筑领域的保温和防水材料使用，由于建筑环境多为户外环境，在聚氨酯发泡产品的使用过程中，受到长期的日晒，容易使聚氨酯发泡产品内部发生光化学反应，从而降低材料的强度，影响材料的使用寿命。
发明内容
本发明的目的在于提供一种方便生产，保温隔热效果更佳，能够避免聚氨酯发泡产品在长期日晒状态下发生光化学反应，延长产品使用寿命的基于石墨材料的聚氨酯发泡产品制备配方，以解决上述背景技术中提出的在聚氨酯发泡产品的使用过程中，受到长期的日晒，容易使聚氨酯发泡产品内部发生光化学反应，从而降低材料的强度，影响材料的使用寿命的问题。
为了实现上述目的，本发明采用了如下技术方案：
一种基于石墨材料的聚氨酯发泡产品制备配方，基于石墨材料的聚氨酯发泡产品制备配方按照重量的配方如下：树脂基料30-50份、聚醚30-50份、催化剂2-5份、阻燃剂10-20份、强化纤维10-15份、辅助添加剂2-5份、导电导热材料0-8份、绝缘导热材料0-8份、钛白粉0-8份和光反射涂料0-8份。
优选的，所述树脂基料可采用异氰酸酯与聚丙烯、聚乙烯、聚甲基丙烯酸甲酯、聚碳酸酯、尼龙66和聚苯乙烯中的一种或多种共混物混合生成。
优选的，所述强化纤维采用石墨纤维与凹凸捧土、海泡石、碳酸钙、石英砂、晶须和二氧化硅中的一种或多种共混物经纤维素溶液浸泡后交织而成，石墨纤维的直径为10-30μm，共混物的直径为3-10μm，纤维素溶液为羟乙基纤维素溶液或乙基-2-羟乙基纤维素溶液。
优选的，所述导电导热材料为石墨烯、碳纳米管和铜的共混物。
优选的，所述绝缘导热材料为碳化钛、碳化锆、碳化钨、氮化硅、氮化铝、氧化铝和氧化锌中的一种或几种共混物。
优选的，所述钛白粉为含量为68%的纳米级金红石型钛白粉。
本发明还提供一种基于石墨材料的聚氨酯发泡产品制备配方的制备方法，包括如下步骤：
S1、将树脂基料和聚投入到反应釜中，在氮气的保护下进行反应后依次加入催化剂、阻燃剂、强化纤维和辅助添加剂，搅拌均匀后生成聚氨酯发泡原料；
S2、将S1中形成的聚氨酯发泡原料与导电导热材料混合，生成导电导热原料，将其进行真空干燥处理后待用，将S1中形成的聚氨酯发泡原料与绝缘导热材料混合，生成绝缘导热原料，将其进行干燥处理后待用；
S3、采用双螺杆挤出机对S2中产生的导电导热原料与绝缘导热原料进行挤出和造粒，形成预混物后再次对其进行干燥处理；
S4、将导电导热预混物与绝缘导热预混物分别装入到两组挤出机中依次熔融挤出，挤出后的预混物落入到模具中，形成层叠状态的聚氨酯发泡原模，导电导热预混物与绝缘导热预混物的挤出厚度相同；
S5、将钛白粉和光反射涂料在高搅机中混合均匀后，装入到另一组挤出机中，将其挤出到层叠状态的聚氨酯发泡原模的表面；
S6、将S5中的成品进行冷却脱模处理后，得到聚氨酯发泡产品。
优选的，所述绝缘导热预混物的位于聚氨酯发泡原模的上下表面。
本发明提供的一种基于石墨材料的聚氨酯发泡产品制备配方，在聚氨酯发泡原料中添加导电导热材料绝缘导热材料，提高聚氨酯发泡产品的热导率和平行导电性，生产过程中通过改变导电导热材料绝缘导热材料的层数实现导热和导电性能的调节，无需再对其产品本身进行成分改造，方便生产，采用石墨纤维作为主要的强化纤维，材料含碳量大大提高，力学性能更佳，在聚氨酯发泡原料中添加钛白粉和光反射涂料，提高产品对红外光线的反射率，从而隔绝聚氨酯发泡产品内外两侧的温度，保温隔热效果更佳，添加的光反射颜料能够对紫外线进行反射，避免聚氨酯发泡产品在长期日晒状态下发生光化学反应，延长产品使用寿命。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合具体实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
实施例1
一种基于石墨材料的聚氨酯发泡产品制备配方，基于石墨材料的聚氨酯发泡产品制备配方按照重量的配方如下：树脂基料30份、聚醚30份、催化剂2份、阻燃剂10份、强化纤维10份、辅助添加剂3份、导电导热材料4份、绝缘导热材料4份、钛白粉4份和光反射涂料3份，树脂基料可采用异氰酸酯与聚丙烯、聚乙烯、聚甲基丙烯酸甲酯、聚碳酸酯、尼龙66和聚苯乙烯中的一种或多种共混物混合生成，强化纤维采用石墨纤维与凹凸捧土、海泡石、碳酸钙、石英砂、晶须和二氧化硅中的一种或多种共混物经纤维素溶液浸泡后交织而成，石墨纤维的直径为10-30μm，共混物的直径为3-10μm，纤维素溶液为羟乙基纤维素溶液或乙基-2-羟乙基纤维素溶液，导电导热材料为石墨烯、碳纳米管和铜的共混物，绝缘导热材料为碳化钛、碳化锆、碳化钨、氮化硅、氮化铝、氧化铝和氧化锌中的一种或几种共混物，钛白粉为含量为68%的纳米级金红石型钛白粉。
实施例2
一种基于石墨材料的聚氨酯发泡产品制备配方，基于石墨材料的聚氨酯发泡产品制备配方按照重量的配方如下：树脂基料30份、聚醚30份、催化剂2份、阻燃剂10份、强化纤维10份、辅助添加剂3份、绝缘导热材料8份、钛白粉4份和光反射涂料3份，树脂基料可采用异氰酸酯与聚丙烯、聚乙烯、聚甲基丙烯酸甲酯、聚碳酸酯、尼龙66和聚苯乙烯中的一种或多种共混物混合生成，强化纤维采用石墨纤维与凹凸捧土、海泡石、碳酸钙、石英砂、晶须和二氧化硅中的一种或多种共混物经纤维素溶液浸泡后交织而成，石墨纤维的直径为10-30μm，共混物的直径为3-10μm，纤维素溶液为羟乙基纤维素溶液或乙基-2-羟乙基纤维素溶液，绝缘导热材料为碳化钛、碳化锆、碳化钨、氮化硅、氮化铝、氧化铝和氧化锌中的一种或几种共混物，钛白粉为含量为68%的纳米级金红石型钛白粉。
实施例3
一种基于石墨材料的聚氨酯发泡产品制备配方，基于石墨材料的聚氨酯发泡产品制备配方按照重量的配方如下：树脂基料30份、聚醚30份、催化剂2份、阻燃剂10份、强化纤维10份、辅助添加剂3份、导电导热材料8份、钛白粉4份和光反射涂料3份，树脂基料可采用异氰酸酯与聚丙烯、聚乙烯、聚甲基丙烯酸甲酯、聚碳酸酯、尼龙66和聚苯乙烯中的一种或多种共混物混合生成，强化纤维采用石墨纤维与凹凸捧土、海泡石、碳酸钙、石英砂、晶须和二氧化硅中的一种或多种共混物经纤维素溶液浸泡后交织而成，石墨纤维的直径为10-30μm，共混物的直径为3-10μm，纤维素溶液为羟乙基纤维素溶液或乙基-2-羟乙基纤维素溶液，导电导热材料为石墨烯、碳纳米管和铜的共混物，钛白粉为含量为68%的纳米级金红石型钛白粉。
实施例4
一种基于石墨材料的聚氨酯发泡产品制备配方，基于石墨材料的聚氨酯发泡产品制备配方按照重量的配方如下：树脂基料30份、聚醚30份、催化剂2份、阻燃剂10份、强化纤维10份、辅助添加剂3份、导电导热材料6份、绝缘导热材料6份和光反射涂料3份，树脂基料可采用异氰酸酯与聚丙烯、聚乙烯、聚甲基丙烯酸甲酯、聚碳酸酯、尼龙66和聚苯乙烯中的一种或多种共混物混合生成，强化纤维采用石墨纤维与凹凸捧土、海泡石、碳酸钙、石英砂、晶须和二氧化硅中的一种或多种共混物经纤维素溶液浸泡后交织而成，石墨纤维的直径为10-30μm，共混物的直径为3-10μm，纤维素溶液为羟乙基纤维素溶液或乙基-2-羟乙基纤维素溶液，导电导热材料为石墨烯、碳纳米管和铜的共混物，绝缘导热材料为碳化钛、碳化锆、碳化钨、氮化硅、氮化铝、氧化铝和氧化锌中的一种或几种共混物。
实施例5
一种基于石墨材料的聚氨酯发泡产品制备配方，基于石墨材料的聚氨酯发泡产品制备配方按照重量的配方如下：树脂基料30份、聚醚30份、催化剂2份、阻燃剂10份、强化纤维10份、辅助添加剂3份、导电导热材料6份、绝缘导热材料6份和钛白粉3份，树脂基料可采用异氰酸酯与聚丙烯、聚乙烯、聚甲基丙烯酸甲酯、聚碳酸酯、尼龙66和聚苯乙烯中的一种或多种共混物混合生成，强化纤维采用石墨纤维与凹凸捧土、海泡石、碳酸钙、石英砂、晶须和二氧化硅中的一种或多种共混物经纤维素溶液浸泡后交织而成，石墨纤维的直径为10-30μm，共混物的直径为3-10μm，纤维素溶液为羟乙基纤维素溶液或乙基-2-羟乙基纤维素溶液，导电导热材料为石墨烯、碳纳米管和铜的共混物，绝缘导热材料为碳化钛、碳化锆、碳化钨、氮化硅、氮化铝、氧化铝和氧化锌中的一种或几种共混物，钛白粉为含量为68%的纳米级金红石型钛白粉。
本发明还提供一种基于石墨材料的聚氨酯发泡产品制备配方的制备方法，包括如下步骤：
S1、将树脂基料和聚投入到反应釜中，在氮气的保护下进行反应后依次加入催化剂、阻燃剂、强化纤维和辅助添加剂，搅拌均匀后生成聚氨酯发泡原料；
S2、将S1中形成的聚氨酯发泡原料与导电导热材料混合，生成导电导热原料，将其进行真空干燥处理后待用，将S1中形成的聚氨酯发泡原料与绝缘导热材料混合，生成绝缘导热原料，将其进行干燥处理后待用；
S3、采用双螺杆挤出机对S2中产生的导电导热原料与绝缘导热原料进行挤出和造粒，形成预混物后再次对其进行干燥处理；
S4、将导电导热预混物与绝缘导热预混物分别装入到两组挤出机中依次熔融挤出，挤出后的预混物落入到模具中，形成层叠状态的聚氨酯发泡原模，导电导热预混物与绝缘导热预混物的挤出厚度相同，绝缘导热预混物的位于聚氨酯发泡原模的上下表面；
S5、将钛白粉和光反射涂料在高搅机中混合均匀后，装入到另一组挤出机中，将其挤出到层叠状态的聚氨酯发泡原模的表面；
S6、将S5中的成品进行冷却脱模处理后，得到聚氨酯发泡产品。
综上所述：本基于石墨材料的聚氨酯发泡产品制备配方，在聚氨酯发泡原料中添加导电导热材料绝缘导热材料，提高聚氨酯发泡产品的热导率和平行导电性，生产过程中通过改变导电导热材料绝缘导热材料的层数实现导热和导电性能的调节，无需再对其产品本身进行成分改造，方便生产，采用石墨纤维作为主要的强化纤维，材料含碳量大大提高，力学性能更佳，在聚氨酯发泡原料中添加钛白粉和光反射涂料，提高产品对红外光线的反射率，从而隔绝聚氨酯发泡产品内外两侧的温度，保温隔热效果更佳，添加的光反射颜料能够对紫外线进行反射，避免聚氨酯发泡产品在长期日晒状态下发生光化学反应，延长产品使用寿命。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (8)

1.一种基于石墨材料的聚氨酯发泡产品制备配方，其特征在于：所述基于石墨材料的聚氨酯发泡产品制备配方按照重量的配方如下：树脂基料30-50份、聚醚30-50份、催化剂2-5份、阻燃剂10-20份、强化纤维10-15份、辅助添加剂2-5份、导电导热材料0-8份、绝缘导热材料0-8份、钛白粉0-8份和光反射涂料0-8份。
2.根据权利要求1所述的一种基于石墨材料的聚氨酯发泡产品制备配方，其特征在于：所述树脂基料可采用异氰酸酯与聚丙烯、聚乙烯、聚甲基丙烯酸甲酯、聚碳酸酯、尼龙66和聚苯乙烯中的一种或多种共混物混合生成。
3.根据权利要求1所述的一种基于石墨材料的聚氨酯发泡产品制备配方，其特征在于：所述强化纤维采用石墨纤维与凹凸捧土、海泡石、碳酸钙、石英砂、晶须和二氧化硅中的一种或多种共混物经纤维素溶液浸泡后交织而成，石墨纤维的直径为10-30μm，共混物的直径为3-10μm，纤维素溶液为羟乙基纤维素溶液或乙基-2-羟乙基纤维素溶液。
4.根据权利要求1所述的一种基于石墨材料的聚氨酯发泡产品制备配方，其特征在于：所述导电导热材料为石墨烯、碳纳米管和铜的共混物。
5.根据权利要求1所述的一种基于石墨材料的聚氨酯发泡产品制备配方，其特征在于：所述绝缘导热材料为碳化钛、碳化锆、碳化钨、氮化硅、氮化铝、氧化铝和氧化锌中的一种或几种共混物。
6.根据权利要求1所述的一种基于石墨材料的聚氨酯发泡产品制备配方，其特征在于：所述钛白粉为含量为68%的纳米级金红石型钛白粉。
7.一种权利要求1所述的基于石墨材料的聚氨酯发泡产品制备配方的制备方法，其特征在于：包括如下步骤：
S1、将树脂基料和聚投入到反应釜中，在氮气的保护下进行反应后依次加入催化剂、阻燃剂、强化纤维和辅助添加剂，搅拌均匀后生成聚氨酯发泡原料；
S2、将S1中形成的聚氨酯发泡原料与导电导热材料混合，生成导电导热原料，将其进行真空干燥处理后待用，将S1中形成的聚氨酯发泡原料与绝缘导热材料混合，生成绝缘导热原料，将其进行干燥处理后待用；
S3、采用双螺杆挤出机对S2中产生的导电导热原料与绝缘导热原料进行挤出和造粒，形成预混物后再次对其进行干燥处理；
S4、将导电导热预混物与绝缘导热预混物分别装入到两组挤出机中依次熔融挤出，挤出后的预混物落入到模具中，形成层叠状态的聚氨酯发泡原模，导电导热预混物与绝缘导热预混物的挤出厚度相同；
S5、将钛白粉和光反射涂料在高搅机中混合均匀后，装入到另一组挤出机中，将其挤出到层叠状态的聚氨酯发泡原模的表面；
S6、将S5中的成品进行冷却脱模处理后，得到聚氨酯发泡产品。
8.根据权利要求7所述的一种基于石墨材料的聚氨酯发泡产品制备配方的制备方法，其特征在于：所述绝缘导热预混物的位于聚氨酯发泡原模的上下表面。
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