CN103483542A - 一种环保阻燃聚氨酯发泡材料 - Google Patents
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Abstract
本发明公开了一种环保阻燃聚氨酯发泡材料,其特征在于由下列重量份的A、B料混合、浇注、反应、熟化制成:A料:聚醚多元醇100、硅烷偶联剂KH-5503-4、纳米矿渣2-3、硬脂酸镁1.0-1.2、丁基硫醇锡1-2、水3-4、氢氧化铝粉10-20、膨胀珍珠岩粉12-16、萤石粉10-12、甲基异噻唑啉酮2-3、改性凹凸棒土6-8;B料:二苯基甲烷二异氰酸酯30-34。本发明添加改性凹凸棒土、氢氧化铝粉,是很好的物理阻燃剂,具有优异的阻燃作用;填充纳米矿渣、膨胀珍珠岩粉、萤石粉在提高了材料强度的同时,还具有一定的韧性,密度较低,同时耐老化、耐黄变,无毒无害,对环境友好。
Description
技术领域
本发明涉及一种发泡材料,特别是一种环保阻燃聚氨酯发泡材料。
背景技术
聚氨酯泡沫塑料是异氰酸酯和羟基化合物经聚合发泡制成,按其硬度可分为软质和硬质两类,其中软质为主要品种。一般来说,它具有极佳的弹性、柔软性、伸长率和压缩强度;化学稳定性好,耐许多溶剂和油类;耐磨性优良,较天然海绵大20倍;还有优良的加工性、绝热性、粘合性等性能,是一种性能优良的缓冲材料,但价格较高。聚氨酯泡沫塑料一般只用于高档精密仪器、贵重器械、高档工艺品等的缓冲包装或衬垫缓冲材料,也可制成精致的、保护性极好的包装容器;还可采用现场发泡对物品进行缓冲包装。
凹凸棒土是含水富镁硅酸盐晶体矿物,具有独特的层链状结构、不同寻常的胶体性能和强大的吸附能力;另外,凹凸棒土具有众多平行于棒晶方向的纳米级沸石孔道,因而具有相当大的内表面积;同时其晶体颗粒非常小,外表面积也很大。凹凸棒土的吸附作用分为物理吸附及化学吸附。天然的凹凸棒石黏土包含一些矿物杂质,如蒙脱石、高岭石、碳酸盐、少量微粒石英和长石,可能堵塞孔道,降低表面积,削弱了整体的物化性能,从而使凹凸棒石黏土的胶体性、吸附性等在工业使用中受到很大的影响。活化改性的方法可以除去天然凹凸棒石黏土的杂质,增加比表面积,提高其吸附和离子交换性能,使凹凸棒石黏土广泛地应用于吸附、脱色、胶体泥浆、催化剂及载体等领域。凹凸棒土中含有沸石水和结晶水,当泡沫塑料燃烧时释放出来的水可以降低泡沫塑料的温度,从而起到一定的阻燃作用;另外,凹凸棒土中含有Mg、Si元素,燃烧时生成的氧化物覆盖在泡沫塑料表面隔绝氧气,从而达到阻燃的目的。
发明内容
本发明的目的是提供一种环保阻燃聚氨酯发泡材料。
为了实现本发明的目的,本发明通过以下方案实施:
一种环保阻燃聚氨酯发泡材料,由下列重量份的A、B料混合、浇注、反应、熟化制成:
A料:聚醚多元醇100、硅烷偶联剂KH-550 3-4、纳米矿渣2-3、硬脂酸镁1.0-1.2、丁基硫醇锡1-2、水3-4、氢氧化铝粉10-20、膨胀珍珠岩粉12-16、萤石粉10-12、甲基异噻唑啉酮2-3、改性凹凸棒土6-8;
B料:二苯基甲烷二异氰酸酯30-34。
所述改性凹凸棒土通过以下方法制备:称取下列重量份的原料:凹凸棒土150-155、玉石3-4、玫瑰精油1-2、秸秆灰烬50-55、硅烷偶联剂KH550 1-2、碳酸氢钠2-3、季戊四醇三丙烯酸酯2-3、甘油三醋酸酯1-2、交联剂 TAC1-2、氢氧化铝3-4;制备方法是将凹凸棒土、玉石放入煅烧炉中,在610-630℃下煅烧3-4小时,取出,与秸秆灰烬、碳酸氢钠混合,研磨至得到300-400目粉末,然后,再加入季戊四醇三丙烯酸酯、氢氧化铝、硅烷偶联剂KH550混合,继续研磨30-45分钟,至充分分散,再加入其它剩余成分,继续研磨30-45分钟后,在1500-1800转/分下搅拌15-30分钟,即得改性凹凸棒土。
本发明所述环保阻燃聚氨酯发泡材料,由以下具体步骤制备而成:
将A料各原料混合,在常温下研磨20-30分钟,得到浆料;再将B料加入A料中,200-300转/分搅拌30-45秒;浇注到模具中自由发泡,获得模坯;然后,连同模具一起将模坯送入隧道式烘箱中,分段升温:40-45℃下,反应15-25分钟;再在55-65℃下,反应10-15分钟;再在75-85℃下,反应5-10分钟;最后在90-100℃下熟化5-7小时。
本发明添加改性凹凸棒土、氢氧化铝粉,是很好的物理阻燃剂,具有优异的阻燃作用;填充纳米矿渣、膨胀珍珠岩粉、萤石粉在提高了材料强度的同时,还具有一定的韧性,密度较低,发泡正常且表面平整性较好,同时耐老化、耐黄变、耐降解性能较好,无毒无害,对环境友好。
具体实施方案
下面通过具体实例对本发明进行详细说明。
一种环保阻燃聚氨酯发泡材料,由下列重量份的A、B料混合、浇注、反应、熟化制成:
A料:各原料重量份为(重量份为公斤):聚醚多元醇100、硅烷偶联剂KH-550 3、纳米矿渣2、硬脂酸镁1.0、丁基硫醇锡1、水3、氢氧化铝粉10、膨胀珍珠岩粉12、萤石粉10、甲基异噻唑啉酮2、改性凹凸棒土6;
B料:各原料重量份为(重量份为公斤):二苯基甲烷二异氰酸酯30。
所述改性凹凸棒土通过以下方法制备:称取下列重量份(公斤)的原料:凹凸棒土150、玉石3、玫瑰精油1、秸秆灰烬50、硅烷偶联剂KH550 1、碳酸氢钠2、季戊四醇三丙烯酸酯2、甘油三醋酸酯1、交联剂 TAC1、氢氧化铝3;制备方法是将凹凸棒土、玉石放入煅烧炉中,在610-630℃下煅烧3-4小时,取出,与秸秆灰烬、碳酸氢钠混合,研磨至得到300-400目粉末,然后,再加入季戊四醇三丙烯酸酯、氢氧化铝、硅烷偶联剂KH550混合,继续研磨30-45分钟,至充分分散,再加入其它剩余成分,继续研磨30-45分钟后,在1500-1800转/分下搅拌15-30分钟,即得改性凹凸棒土。
本发明所述环保阻燃聚氨酯发泡材料,由以下具体步骤制备而成:
将A料各原料混合,在常温下研磨20-30分钟,得到浆料;再将B料加入A料中,200-300转/分搅拌30-45秒;浇注到模具中自由发泡,获得模坯;然后,连同模具一起将模坯送入隧道式烘箱中,分段升温:40-45℃下,反应15-25分钟;再在55-65℃下,反应10-15分钟;再在75-85℃下,反应5-10分钟;最后在90-100℃下熟化5-7小时。
所得的材料各功能参数如下: 压缩强度(MPa): 0.27,氧指数:29,导热系数(W/mK):0.038。
Claims (1)
1.一种环保阻燃聚氨酯发泡材料,其特征在于由下列重量份的A、B料混合、浇注、反应、熟化制成:
A料:聚醚多元醇100、硅烷偶联剂KH-550 3-4、纳米矿渣2-3、硬脂酸镁1.0-1.2、丁基硫醇锡1-2、水3-4、氢氧化铝粉10-20、膨胀珍珠岩粉12-16、萤石粉10-12、甲基异噻唑啉酮2-3、改性凹凸棒土6-8;
B料:二苯基甲烷二异氰酸酯30-34;
所述改性凹凸棒土通过以下方法制备:称取下列重量份的原料:凹凸棒土150-155、玉石3-4、玫瑰精油1-2、秸秆灰烬50-55、硅烷偶联剂KH550 1-2、碳酸氢钠2-3、季戊四醇三丙烯酸酯2-3、甘油三醋酸酯1-2、交联剂 TAC1-2、氢氧化铝3-4;制备方法是将凹凸棒土、玉石放入煅烧炉中,在610-630℃下煅烧3-4小时,取出,与秸秆灰烬、碳酸氢钠混合,研磨至得到300-400目粉末,然后,再加入季戊四醇三丙烯酸酯、氢氧化铝、硅烷偶联剂KH550混合,继续研磨30-45分钟,至充分分散,再加入其它剩余成分,继续研磨30-45分钟后,在1500-1800转/分下搅拌15-30分钟,即得改性凹凸棒土。
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Cited By (6)
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CN105601864A (zh) * | 2014-11-21 | 2016-05-25 | 合肥杰事杰新材料股份有限公司 | 一种低烟、低毒、阻燃的硬质聚氨酯泡沫塑料及其制备方法 |
CN107488256A (zh) * | 2017-09-06 | 2017-12-19 | 绵阳凤面科技有限公司 | 一种低成本阻燃聚氨酯发泡保温材料 |
CN107964086A (zh) * | 2017-12-07 | 2018-04-27 | 遂宁市明川零贰零科技有限公司 | 一种低成本阻燃聚氨酯发泡保温材料 |
CN109456588A (zh) * | 2018-11-14 | 2019-03-12 | 安徽兆拓新能源科技有限公司 | 太阳能热水器用聚氨酯泡沫塑料及其应用 |
CN109456587A (zh) * | 2018-11-14 | 2019-03-12 | 安徽兆拓新能源科技有限公司 | 一种应用于太阳能热水器的聚氨酯泡沫塑料 |
CN110156950A (zh) * | 2019-05-30 | 2019-08-23 | 杨开芳 | 一种环保型阻燃聚氨酯泡沫材料的制备方法 |
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CN105601864A (zh) * | 2014-11-21 | 2016-05-25 | 合肥杰事杰新材料股份有限公司 | 一种低烟、低毒、阻燃的硬质聚氨酯泡沫塑料及其制备方法 |
CN107488256A (zh) * | 2017-09-06 | 2017-12-19 | 绵阳凤面科技有限公司 | 一种低成本阻燃聚氨酯发泡保温材料 |
CN107964086A (zh) * | 2017-12-07 | 2018-04-27 | 遂宁市明川零贰零科技有限公司 | 一种低成本阻燃聚氨酯发泡保温材料 |
CN109456588A (zh) * | 2018-11-14 | 2019-03-12 | 安徽兆拓新能源科技有限公司 | 太阳能热水器用聚氨酯泡沫塑料及其应用 |
CN109456587A (zh) * | 2018-11-14 | 2019-03-12 | 安徽兆拓新能源科技有限公司 | 一种应用于太阳能热水器的聚氨酯泡沫塑料 |
CN110156950A (zh) * | 2019-05-30 | 2019-08-23 | 杨开芳 | 一种环保型阻燃聚氨酯泡沫材料的制备方法 |
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