CN106147072A - 聚氯乙烯墙体保温材料 - Google Patents
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Abstract
本发明提出了一种聚氯乙烯墙体保温材料,按照重量份数计算,包括以下原料制成:聚氯乙烯树脂粉100~120份、包膜玻化微珠30~50份、稳定剂3~6份、乙烯—醋酸乙烯共聚物10~15份、内润滑剂0~6份与发泡剂2~10份。该保温材料阻燃性和抑烟性良好,且吸水率低以及抗压强度高。
Description
技术领域
本发明涉及建筑保温材料,具体涉及一种聚氯乙烯墙体保温材料。
背景技术
我国每年城乡新建房屋建筑面积近20亿平方米,既有建筑近420亿平方米,建筑能耗已占全国总能耗的27%以上,建筑节能问题已成为我国可持续发展的重要环节,尤其是围护结构的节能具有特别重要的地位。近几年聚苯泡沫板保温便应运而生,聚苯板保温效果非常好,而且密度非常低,能达到100kg/m3以下,但其致命缺陷是易燃,而且燃烧后发烟量大,所以其使用受到极大限制。近年来,北京、上海、沈阳等地发生了因保温层燃烧而引起的“央视大楼”、“上海教师公寓”、“沈阳万鑫酒店”火灾,充分暴露出传统有机保温材料的防火缺陷。住建部也在大力提倡开发新型的阻燃、轻质的保温材料。
玻化微珠保温砂浆是一种以玻化微珠为骨料的无机保温材料,因玻化微珠内部为蜂窝状空腔结构,表面形成玻璃体薄壳,因而具有质轻、吸水率低、强度高、理化性能稳定的特点。然而,目前我们国内生产的大部分玻化微珠都存在容重和吸水率过大问题。我国南方地区利用玻化微珠作骨料配制的保温砂浆干密度普遍偏高,使其保温性能大受影响。同时,目前制备的玻化微珠保温材料,因玻化微珠的吸水率(60%~150%)过大,导致其吸水率高,且制备的保温材料容重大多为300~500kg/m3,导热系数为0.075~1.5/W/m·K,而且强度偏低,不能够满足我国建筑节能65%的要求,特别是在寒冷的北方。
发明内容
为解决上述现有有机保温材料存在防火性能差的问题,本发明提出一种聚氯乙烯墙体保温材料,该保温材料阻燃性和抑烟性良好,且吸水率低以及抗压强度高。
本发明的技术方案是这样实现的:
一种聚氯乙烯墙体保温材料,按照重量份数计算,包括以下原料制成:
聚氯乙烯树脂粉100~120份、包膜玻化微珠30~50份、稳定剂3~6份、乙烯—醋酸乙烯共聚物10~15份、内润滑剂0~6份与发泡剂2~10份;
所述包膜玻化微珠通过以下方法制备而得:
a)取玻化微珠加入到包衣机中加热至200~250℃,并加入粉煤灰和铁黑粉,搅拌均匀,其中玻化微珠与粉煤灰以及铁黑粉的质量比为100:1~3:2~4;
b)接着包衣机一端喷洒蒸馏水将玻化微珠浸湿,一端喷洒环氧树脂粉料,并不断搅拌30~60min,即得包膜玻化微珠。
进一步,所述聚氯乙烯树脂粉的聚合度为600~1100。
进一步,所述稳定剂为复合铅类稳定剂、钙锌类稳定剂或有机锡稳定剂。
进一步,所述内润滑剂为硬脂酸、硬脂酸酯、硬脂酸醇化合物、硬脂酸酰胺类、脂肪酸金属皂类、聚乙烯蜡、石蜡或氧化聚乙烯。
进一步,所述发泡剂为碳酸氢钠、碳酸氢铵、碳酸铵或叠氮化合物。
聚氯乙烯墙体保温材料的制备方法,包括以下步骤:通过油夹套加热和自摩擦加热至100~110℃,放入冷混中,当物料冷却至45℃以下时放入贮料仓中,经弹簧上料机靠料位计自控上料,该混合料进入80/156锥形双螺杆进行挤出加工。螺杆油温控制在80~120℃之间,螺筒温度控温在130~190℃之间,熔融物料经螺杆进入合流芯分流至专用衣架式发泡模具,合流芯温度在130~160℃之间,模具温度在150~180℃之间,模唇温度通过模温机导热油控温在130~160℃之间,熔融物料离模后发泡膨胀同时进入定型模板,经冷却定型进入修边装置来控制宽度,然后进入自动切割机按标准长度自动切割为成品。
本发明的有益效果:
1、玻化微珠通过粉煤灰以及铁黑粉进行包膜处理,不仅能够降低玻化微珠的吸水率,而且还能够增强玻化微珠作为骨料的强度。充分利用玻化微珠理化性能十分稳定、耐老化耐候性强等优点,因此,制备出的墙体保温材料其保温性能更持久,吸水率低以及抗压强度高。
2、本发明制得的聚氯乙烯墙体保温材料具有良好的阻燃性和抑烟性,同时保温效果良好,生产成本低,制作工艺简单。
具体实施方式
实施例1
一种聚氯乙烯墙体保温材料,按照重量份数计算,包括以下原料制成:
聚合度为600的聚氯乙烯树脂粉100份、包膜玻化微珠30份、复合铅类稳定剂3份、乙烯—醋酸乙烯共聚物10份、硬脂酸酯2份与碳酸氢铵4份,其中包膜玻化微珠通过以下方法制备而得:
a)取玻化微珠加入到包衣机中加热至200℃,并加入粉煤灰和铁黑粉,搅拌均匀,其中玻化微珠与粉煤灰以及铁黑粉的质量比为100:1:2;
b)接着包衣机一端喷洒蒸馏水将玻化微珠浸湿,一端喷洒环氧树脂粉料,并不断搅拌30min,即得包膜玻化微珠。
制备方法为:
上述物料混合后经热冷混进入80/156的锥形双螺杆挤出机,控制螺杆转速17转/分,螺筒加热温度分别为180℃、175℃、170℃、160℃,螺杆油温95℃,模具温度170℃,模唇温度140℃,经发泡定型为25mm的板材。
实施例2
一种聚氯乙烯墙体保温材料,按照重量份数计算,包括以下原料制成:
聚合度为1100的聚氯乙烯树脂粉100份、包膜玻化微珠30份、复合铅类稳定剂3份、乙烯—醋酸乙烯共聚物10份、硬脂酸酯2份与碳酸氢铵4份,其中,包膜玻化微珠通过以下方法制备而得:
a)取玻化微珠加入到包衣机中加热至230℃,并加入粉煤灰和铁黑粉,搅拌均匀,其中玻化微珠与粉煤灰以及铁黑粉的质量比为100:2:3;
b)接着包衣机一端喷洒蒸馏水将玻化微珠浸湿,一端喷洒环氧树脂粉料,并不断搅拌45min,即得包膜玻化微珠。
制备方法为:
上述物料混合后经热冷混进入80/156的锥形双螺杆挤出机,控制螺杆转速17转/分,螺筒加热温度分别为185℃、170℃、170℃、165℃,螺杆油温100℃,模具温度170℃,模唇温度140℃,经发泡定型为25mm的板材。
实施例3
一种聚氯乙烯墙体保温材料,按照重量份数计算,包括以下原料制成:
聚合度为1100的聚氯乙烯树脂粉120份、包膜玻化微珠50份、钙锌类稳定剂5份、乙烯—醋酸乙烯共聚物15份与碳酸氢钠2份;其中,包膜玻化微珠通过以下方法制备而得:
a)取玻化微珠加入到包衣机中加热至250℃,并加入粉煤灰和铁黑粉,搅拌均匀,其中玻化微珠与粉煤灰以及铁黑粉的质量比为100:3:4;
b)接着包衣机一端喷洒蒸馏水将玻化微珠浸湿,一端喷洒环氧树脂粉料,并不断搅拌60min,即得包膜玻化微珠。
制备方法为:
上述物料混合后经热冷混进入80/156的锥形双螺杆挤出机,控制螺杆转速17转/分,螺筒加热温度分别为185℃、170℃、170℃、165℃,螺杆油温100℃,模具温度170℃,模唇温度140℃,经发泡定型为25mm的板材。
实施例4
一种聚氯乙烯墙体保温材料,按照重量份数计算,包括以下原料制成:
聚合度为600的聚氯乙烯树脂粉110份、包膜玻化微珠45份、钙锌类稳定剂6份、乙烯—醋酸乙烯共聚物15份与碳酸氢钠2份;其中,包膜玻化微珠通过以下方法制备而得:
a)取玻化微珠加入到包衣机中加热至250℃,并加入粉煤灰和铁黑粉,搅拌均匀,其中玻化微珠与粉煤灰以及铁黑粉的质量比为100:3:4;
b)接着包衣机一端喷洒蒸馏水将玻化微珠浸湿,一端喷洒环氧树脂粉料,并不断搅拌60min,即得包膜玻化微珠。
制备方法为:
上述物料混合后经热冷混进入80/156的锥形双螺杆挤出机,控制螺杆转速17转/分,螺筒加热温度分别为185℃、170℃、170℃、165℃,螺杆油温100℃,模具温度170℃,模唇温度140℃,经发泡定型为25mm的板材。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (5)
1.一种聚氯乙烯墙体保温材料,其特征在于,按照重量份数计算,包括以下原料制成:
聚氯乙烯树脂粉100~120份、包膜玻化微珠30~50份、稳定剂3~6份、乙烯—醋酸乙烯共聚物10~15份、内润滑剂0~6份与发泡剂2~10份;
所述包膜玻化微珠通过以下方法制备而得:
a)取玻化微珠加入到包衣机中加热至200~250℃,并加入粉煤灰和铁黑粉,搅拌均匀,其中玻化微珠与粉煤灰以及铁黑粉的质量比为100:1~3:2~4;
b)接着包衣机一端喷洒蒸馏水将玻化微珠浸湿,一端喷洒环氧树脂粉料,并不断搅拌30~60min,即得包膜玻化微珠。
2.根据权利要求1所述的聚氯乙烯墙体保温材料,其特征在于,所述聚氯乙烯树脂粉的聚合度为600~1100。
3.根据权利要求1所述的聚氯乙烯墙体保温材料,其特征在于,所述稳定剂为复合铅类稳定剂、钙锌类稳定剂或有机锡稳定剂。
4.根据权利要求1所述的聚氯乙烯墙体保温材料,其特征在于,所述内润滑剂为硬脂酸、硬脂酸酯、硬脂酸醇化合物、硬脂酸酰胺类、脂肪酸金属皂类、聚乙烯蜡、石蜡或氧化聚乙烯。
5.根据权利要求1所述的聚氯乙烯墙体保温材料,其特征在于,所述发泡剂为碳酸氢钠、碳酸氢铵、碳酸铵或叠氮化合物。
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Cited By (3)
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CN108264319A (zh) * | 2018-01-25 | 2018-07-10 | 江苏晨日环保科技有限公司 | 一种聚乙烯墙体保温材料 |
CN108299765A (zh) * | 2018-01-25 | 2018-07-20 | 江苏晨日环保科技有限公司 | 一种改进型聚乙烯墙体保温材料 |
CN109516748A (zh) * | 2019-01-24 | 2019-03-26 | 南京富源资源利用有限公司 | 环保型薄荷保温材料及其制备方法 |
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