CN106358325A - 一种耐高温强附着型电热膜的制备方法 - Google Patents
一种耐高温强附着型电热膜的制备方法 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
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- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
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- F24D13/022—Electric heating systems solely using resistance heating, e.g. underfloor heating resistances incorporated in construction elements
- F24D13/024—Electric heating systems solely using resistance heating, e.g. underfloor heating resistances incorporated in construction elements in walls, floors, ceilings
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Abstract
本发明公开了一种耐高温强附着型电热膜的制备方法,属于电热膜技术领域。本发明以陶瓷罐为基体,金属氯化物溶液为电热膜处理液,经动物肝脏和植物在微生物的作用下对处理液改性,经喷射法制得电热膜,本发明通过向电热膜处理液中掺杂锑元素来提高电热膜的耐高温性,再经富含活性基团的动物肝脏和植物提取液在微生物作用下对处理液改性,增加电热膜溶液中的活性基团数量,使其和基体上的基团发生反应形成更多化学键,提高键合力,从而增加了电热膜溶液和基体间的粘结力,并且肝脏中的氮、硫、磷等元素可以在电热膜表面形成一层化学保护膜,进一步提高电热膜的稳定性,具有极佳的使用前景。
Description
技术领域
本发明公开了一种耐高温强附着型电热膜的制备方法,属于电热膜技术领域。
背景技术
随着现代科学技术的发展,远红外电蒸浴室、家用暖风机等各种家电产品越来越普及,并为人们的日常生活提供了便利。电热膜作为一种片状电发热材料,因其热转换效率高而被广泛应用于远红外电蒸浴室、家用暖风机等家电产品中。在电加热领域里,有电阻加热、电磁感应加热和微波加热三种类型,其中使用最广泛的是电阻加热方式。电热膜属于电阻加热方法,电热膜加热技术与其他导电发热材料相比,具有明显的优点,如加热效率高、节能省电、寿命长、外形可选择性强、加工工艺简单、结构简单、成本低、无明火、安全可靠等。电热膜主要由导电物质和成膜物质或膜状材料组成。不同的导电物质和成膜基体可以形成许多种电热膜,其加工方法,有的是将膜直接制备在被加热载体上,在载体上形成的薄膜不能和载体分离,例如将导电物质和成膜物质混合成成浆料后,涂覆在需加热物体上,进行干燥成膜、热解喷涂成膜等;有的将电热膜元件化,将导电物质和成膜物质混合挤压成型;也有的采用物理气相沉积、真空喷涂、离子喷涂、溅射等方法,是导电物与膜状基片组成一体,或将电热膜浆料制成转印纸等。但是传统的电热膜热稳定性有待提高,且只能在中低温范围使用,限制了它在高温工业领域的应用。还存在着电热膜处理液与基体复合不牢、附着力不强、性能不稳定的缺陷。
发明内容
本发明主要解决的技术问题:针对目前常见电热膜热稳定性差,电热膜处理液与基体复合不牢、附着力低、性能不稳定的缺陷,本发明以陶瓷罐为基体,金属氯化物溶液为电热膜处理液,经动物肝脏和植物在微生物的作用下对处理液改性,经喷射法制得电热膜,本发明通过向电热膜处理液中掺杂锑元素来提高电热膜的耐高温性,再经富含活性基团的动物肝脏和植物提取液在微生物作用下对处理液改性,增加电热膜溶液中的活性基团数量,使其和基体上的基团发生反应形成更多化学键,提高键合力,从而增加了电热膜溶液和基体间的粘结力,并且肝脏中的氮、硫、磷等元素可以在电热膜表面形成一层化学保护膜,进一步提高电热膜的稳定性,具有极佳的使用前景。
为了解决上述技术问题,本发明所采用的技术方案是:
(1)取一根长20cm、直径2cm,管壁厚2mm的陶瓷管,将其放入超声清洗仪中,向清洗仪中加入无水乙醇直至将陶瓷管完全浸没,以200~300W功率振荡洗涤20~30min后取出,再用去离子水冲洗10~15min并自然晾干,备用;
(2)按重量份数计称取10~15份四氯化锡、8~10份三氯化锑、0.5~0.8份氯化铁、1~2份氯化镍、2.0~2.5份氯化铬、0.8~1.2份氯化镁、1~3份氯化钴依次倒入反应釜中,再向反应釜中加入20~25份去离子水、8~10份磷酸和10~15份无水乙醇,搅拌均匀得到电热膜预溶液,备用;
(3)称取200~300g新鲜猪肝,剁碎后倒入其总质量5~10倍的质量分数为0.75%氯化钠溶液中,用高速匀浆机以3000~4000r/min转速匀浆15~20min得到匀浆液,将匀浆液和葡萄皮按质量比为3:1混合后装入发酵罐中,放在温度为30~35℃,空气相对湿度为70~80%的条件下自然发霉处理6~7天;
(4)发霉结束后过滤去除滤渣,得到滤液,再称取20~30g藤黄果、30~50g沙棘果和40~60g凤梨依次装入榨汁机中榨汁,过滤得到混合汁液,将混合汁液和滤液混合后用卧式离心机以7000~8000r/min转速离心处理15~20min得到上清液即为改性液;
(5)将备用的电热膜预溶液和上述改性液按体积比为5:1混合后装入发酵罐,再向发酵罐中加入改性液等质量的纳豆,密封罐口后再35~40℃下保温改性1~2周,离心分离去除下层沉淀,收集得到上层改性电热膜溶液;
(6)将步骤(1)备用的陶瓷管放入马弗炉中在500~600℃下煅烧1~2h后取出,立即用喷枪以1~3kg/cm2的喷射压力将上述改性电热膜溶液喷射在陶瓷管上,喷射的过程保持陶瓷罐均匀转动,喷射时间为25~35s,喷射结束后得到电热膜半成品并在300~400℃下退火15~20min,最后自然冷却至室温,得到电热膜半成品;
(7)用毛笔蘸取氧化银银浆均匀的涂刷在电热膜半成品的两端,将涂抹银浆后的半成品放入电极烘箱中在200~250℃下烘烤1~2后取出,待其自然冷却至室温即得耐高温强附着型电热膜。
本发明的应用方法是:首先将本发明制得的耐高温强附着型电热膜制作成长宽为2.8m×0.5m的电热膜块样品,地面清理干净,然后铺设5mm的保温棉,将制得的电热膜块样品按房间面积大小剪切成相应的尺寸,均匀紧密贴于地面后再用胶带粘连,把连接卡子压紧在电热膜载流条一端,把导线插入连接卡子的筒形管中,用压接钳将其压紧,然后用绝缘胶泥进行绝缘,最后在电热膜上铺12mm木地板即可,其绝缘电阻为5~7MΩ,可耐高温为200~250℃。
本发明的有益效果是:
(1)本发明通过加入锑提高了电热膜的稳定性,电极的附着度、耐酸碱度及寿命好;
(2)较传统的电热膜采暖制品耐高温率提高2~3倍,结构简单、易于实施、使用安全、工作稳定的特点,适合大规模生产应用。
具体实施方式
首先取一根长20cm、直径2cm,管壁厚2mm的陶瓷管,将其放入超声清洗仪中,向清洗仪中加入无水乙醇直至将陶瓷管完全浸没,以200~300W功率振荡洗涤20~30min后取出,再用去离子水冲洗10~15min并自然晾干,备用;按重量份数计称取10~15份四氯化锡、8~10份三氯化锑、0.5~0.8份氯化铁、1~2份氯化镍、2.0~2.5份氯化铬、0.8~1.2份氯化镁、1~3份氯化钴依次倒入反应釜中,再向反应釜中加入20~25份去离子水、8~10份磷酸和10~15份无水乙醇,搅拌均匀得到电热膜预溶液,备用;称取200~300g新鲜猪肝,剁碎后倒入其总质量5~10倍的质量分数为0.75%氯化钠溶液中,用高速匀浆机以3000~4000r/min转速匀浆15~20min得到匀浆液,将匀浆液和葡萄皮按质量比为3:1混合后装入发酵罐中,放在温度为30~35℃,空气相对湿度为70~80%的条件下自然发霉处理6~7天;发霉结束后过滤去除滤渣,得到滤液,再称取20~30g藤黄果、30~50g沙棘果和40~60g凤梨依次装入榨汁机中榨汁,过滤得到混合汁液,将混合汁液和滤液混合后用卧式离心机以7000~8000r/min转速离心处理15~20min得到上清液即为改性液;将备用的电热膜预溶液和上述改性液按体积比为5:1混合后装入发酵罐,再向发酵罐中加入改性液等质量的纳豆,密封罐口后再35~40℃下保温改性1~2周,离心分离去除下层沉淀,收集得到上层改性电热膜溶液;将备用的陶瓷管放入马弗炉中在500~600℃下煅烧1~2h后取出,立即用喷枪以1~3kg/cm2的喷射压力将上述改性电热膜溶液喷射在陶瓷管上,喷射的过程保持陶瓷罐均匀转动,喷射时间为25~35s,喷射结束后得到电热膜半成品并在300~400℃下退火15~20min,最后自然冷却至室温,得到电热膜半成品;用毛笔蘸取氧化银银浆均匀的涂刷在电热膜半成品的两端,将涂抹银浆后的半成品放入电极烘箱中在200~250℃下烘烤1~2后取出,待其自然冷却至室温即得耐高温强附着型电热膜。
实例1
首先取一根长20cm、直径2cm,管壁厚2mm的陶瓷管,将其放入超声清洗仪中,向清洗仪中加入无水乙醇直至将陶瓷管完全浸没,以200W功率振荡洗涤20min后取出,再用去离子水冲洗10min并自然晾干,备用;按重量份数计称取10份四氯化锡、8份三氯化锑、0.5份氯化铁、1份氯化镍、2.0份氯化铬、0.8份氯化镁、1份氯化钴依次倒入反应釜中,再向反应釜中加入20份去离子水、8份磷酸和10份无水乙醇,搅拌均匀得到电热膜预溶液,备用;称取200g新鲜猪肝,剁碎后倒入其总质量5倍的质量分数为0.75%氯化钠溶液中,用高速匀浆机以3000r/min转速匀浆15min得到匀浆液,将匀浆液和葡萄皮按质量比为3:1混合后装入发酵罐中,放在温度为30℃,空气相对湿度为70%的条件下自然发霉处理6天;发霉结束后过滤去除滤渣,得到滤液,再称取20g藤黄果、30g沙棘果和40g凤梨依次装入榨汁机中榨汁,过滤得到混合汁液,将混合汁液和滤液混合后用卧式离心机以7000r/min转速离心处理15min得到上清液即为改性液;将备用的电热膜预溶液和上述改性液按体积比为5:1混合后装入发酵罐,再向发酵罐中加入改性液等质量的纳豆,密封罐口后再35℃下保温改性1周,离心分离去除下层沉淀,收集得到上层改性电热膜溶液;将备用的陶瓷管放入马弗炉中在500℃下煅烧1h后取出,立即用喷枪以1kg/cm2的喷射压力将上述改性电热膜溶液喷射在陶瓷管上,喷射的过程保持陶瓷罐均匀转动,喷射时间为25~35s,喷射结束后得到电热膜半成品并在300℃下退火15min,最后自然冷却至室温,得到电热膜半成品;用毛笔蘸取氧化银银浆均匀的涂刷在电热膜半成品的两端,将涂抹银浆后的半成品放入电极烘箱中在200℃下烘烤1~2h后取出,待其自然冷却至室温即得耐高温强附着型电热膜。
本发明的应用方法是:首先将本发明制得的耐高温强附着型电热膜制作成长宽为2.8m×0.5m的电热膜块样品,地面清理干净,然后铺设5mm的保温棉,将制得的电热膜块样品剪切成相应的尺寸,均匀紧密贴于地面后再用胶带粘连,把连接卡子压紧在电热膜载流条一端,把导线插入连接卡子的筒形管中,用压接钳将其压紧,然后用绝缘胶泥进行绝缘,最后在电热膜上铺12mm木地板即可,其绝缘电阻为5MΩ,可耐高温为200℃。
实例2
首先取一根长20cm、直径2cm,管壁厚2mm的陶瓷管,将其放入超声清洗仪中,向清洗仪中加入无水乙醇直至将陶瓷管完全浸没,以250W功率振荡洗涤25min后取出,再用去离子水冲洗13min并自然晾干,备用;按重量份数计称取13份四氯化锡、9份三氯化锑、0.7份氯化铁、1.5份氯化镍、2.3份氯化铬、1.0份氯化镁、2份氯化钴依次倒入反应釜中,再向反应釜中加入23份去离子水、9份磷酸和13份无水乙醇,搅拌均匀得到电热膜预溶液,备用;称取250g新鲜猪肝,剁碎后倒入其总质量7倍的质量分数为0.75%氯化钠溶液中,用高速匀浆机以3500r/min转速匀浆17min得到匀浆液,将匀浆液和葡萄皮按质量比为3:1混合后装入发酵罐中,放在温度为33℃,空气相对湿度为75%的条件下自然发霉处理6.5天;发霉结束后过滤去除滤渣,得到滤液,再称取25g藤黄果40g沙棘果和50g凤梨依次装入榨汁机中榨汁,过滤得到混合汁液,将混合汁液和滤液混合后用卧式离心机以7500r/min转速离心处理17min得到上清液即为改性液;将备用的电热膜预溶液和上述改性液按体积比为5:1混合后装入发酵罐,再向发酵罐中加入改性液等质量的纳豆,密封罐口后再37℃下保温改性1.5周,离心分离去除下层沉淀,收集得到上层改性电热膜溶液;将备用的陶瓷管放入马弗炉中在550℃下煅烧1.5h后取出,立即用喷枪以2kg/cm2的喷射压力将上述改性电热膜溶液喷射在陶瓷管上,喷射的过程保持陶瓷罐均匀转动,喷射时间为30s,喷射结束后得到电热膜半成品并在350℃下退火17min,最后自然冷却至室温,得到电热膜半成品;用毛笔蘸取氧化银银浆均匀的涂刷在电热膜半成品的两端,将涂抹银浆后的半成品放入电极烘箱中在230℃下烘烤1.5h后取出,待其自然冷却至室温即得耐高温强附着型电热膜。
本发明的应用方法是:首先将本发明制得的耐高温强附着型电热膜制作成长宽为2.8m×0.5m的电热膜块样品,地面清理干净,然后铺设5mm的保温棉,将制得的电热膜块样品剪切成相应的尺寸,均匀紧密贴于地面后再用胶带粘连,把连接卡子压紧在电热膜载流条一端,把导线插入连接卡子的筒形管中,用压接钳将其压紧,然后用绝缘胶泥进行绝缘,最后在电热膜上铺12mm木地板即可,其绝缘电阻为6MΩ,可耐高温为230℃。
实例3
首先取一根长20cm、直径2cm,管壁厚2mm的陶瓷管,将其放入超声清洗仪中,向清洗仪中加入无水乙醇直至将陶瓷管完全浸没,以200~300W功率振荡洗涤30min后取出,再用去离子水冲洗15min并自然晾干,备用;按重量份数计称取15份四氯化锡、10份三氯化锑、0.8份氯化铁、2份氯化镍、2.5份氯化铬、1.2份氯化镁、3份氯化钴依次倒入反应釜中,再向反应釜中加入25份去离子水、10份磷酸和15份无水乙醇,搅拌均匀得到电热膜预溶液,备用;称取300g新鲜猪肝,剁碎后倒入其总质量10倍的质量分数为0.75%氯化钠溶液中,用高速匀浆机以4000r/min转速匀浆20min得到匀浆液,将匀浆液和葡萄皮按质量比为3:1混合后装入发酵罐中,放在温度为35℃,空气相对湿度为80%的条件下自然发霉处理7天;发霉结束后过滤去除滤渣,得到滤液,再称取30g藤黄果、50g沙棘果和60g凤梨依次装入榨汁机中榨汁,过滤得到混合汁液,将混合汁液和滤液混合后用卧式离心机以8000r/min转速离心处理20min得到上清液即为改性液;将备用的电热膜预溶液和上述改性液按体积比为5:1混合后装入发酵罐,再向发酵罐中加入改性液等质量的纳豆,密封罐口后再40℃下保温改性2周,离心分离去除下层沉淀,收集得到上层改性电热膜溶液;将备用的陶瓷管放入马弗炉中在600℃下煅烧2h后取出,立即用喷枪以3kg/cm2的喷射压力将上述改性电热膜溶液喷射在陶瓷管上,喷射的过程保持陶瓷罐均匀转动,喷射时间为35s,喷射结束后得到电热膜半成品并在400℃下退火20min,最后自然冷却至室温,得到电热膜半成品;用毛笔蘸取氧化银银浆均匀的涂刷在电热膜半成品的两端,将涂抹银浆后的半成品放入电极烘箱中在250℃下烘烤2h后取出,待其自然冷却至室温即得耐高温强附着型电热膜。
本发明的应用方法是:首先将本发明制得的耐高温强附着型电热膜制作成长宽为2.8m×0.5m的电热膜块样品,地面清理干净,然后铺设5mm的保温棉,将制得的电热膜块样品剪切成相应的尺寸,均匀紧密贴于地面后再用胶带粘连,把连接卡子压紧在电热膜载流条一端,把导线插入连接卡子的筒形管中,用压接钳将其压紧,然后用绝缘胶泥进行绝缘,最后在电热膜上铺12mm木地板即可,其绝缘电阻为7MΩ,可耐高温为250℃。
Claims (1)
1.一种耐高温强附着型电热膜的制备方法,其特征在于具体制备步骤为:
(1)取一根长20cm、直径2cm,管壁厚2mm的陶瓷管,将其放入超声清洗仪中,向清洗仪中加入无水乙醇直至将陶瓷管完全浸没,以200~300W功率振荡洗涤20~30min后取出,再用去离子水冲洗10~15min并自然晾干,备用;
(2)按重量份数计称取10~15份四氯化锡、8~10份三氯化锑、0.5~0.8份氯化铁、1~2份氯化镍、2.0~2.5份氯化铬、0.8~1.2份氯化镁、1~3份氯化钴依次倒入反应釜中,再向反应釜中加入20~25份去离子水、8~10份磷酸和10~15份无水乙醇,搅拌均匀得到电热膜预溶液,备用;
(3)称取200~300g新鲜猪肝,剁碎后倒入其总质量5~10倍的质量分数为0.75%氯化钠溶液中,用高速匀浆机以3000~4000r/min转速匀浆15~20min得到匀浆液,将匀浆液和葡萄皮按质量比为3:1混合后装入发酵罐中,放在温度为30~35℃,空气相对湿度为70~80%的条件下自然发霉处理6~7天;
(4)发霉结束后过滤去除滤渣,得到滤液,再称取20~30g藤黄果、30~50g沙棘果和40~60g凤梨依次装入榨汁机中榨汁,过滤得到混合汁液,将混合汁液和滤液混合后用卧式离心机以7000~8000r/min转速离心处理15~20min得到上清液即为改性液;
(5)将备用的电热膜预溶液和上述改性液按体积比为5:1混合后装入发酵罐,再向发酵罐中加入改性液等质量的纳豆,密封罐口后再35~40℃下保温改性1~2周,离心分离去除下层沉淀,收集得到上层改性电热膜溶液;
(6)将步骤(1)备用的陶瓷管放入马弗炉中在500~600℃下煅烧1~2h后取出,立即用喷枪以1~3kg/cm2的喷射压力将上述改性电热膜溶液喷射在陶瓷管上,喷射的过程保持陶瓷罐均匀转动,喷射时间为25~35s,喷射结束后得到电热膜半成品并在300~400℃下退火15~20min,最后自然冷却至室温,得到电热膜半成品;
(7)用毛笔蘸取氧化银银浆均匀的涂刷在电热膜半成品的两端,将涂抹银浆后的半成品放入电极烘箱中在200~250℃下烘烤1~2h后取出,待其自然冷却至室温即得耐高温强附着型电热膜。
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