CN108034155A - 一种复合纤维增韧发泡保温材料及其制备方法 - Google Patents
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Abstract
本发明公开了一种复合纤维增韧发泡保温材料,它是由下述重量份的原料组成的:聚苯并咪唑纤维5‑7、磷酸纤维素3‑4、乙二醇单丁醚0.3‑1、聚乙烯蜡4‑7、乙酸异丁酸蔗糖酯1‑2、对甲基苯磺酸2‑3、聚苯乙烯110‑130、蓖麻油酸锌1‑2、硼砂2‑4、椰油酸二乙醇酰胺0.6‑1、聚磷酸铵3‑5、发泡剂7‑12,本发明的发泡材料能够起到很好的隔热保温效果,经过处理的各原料间相容性好,加入的聚磷酸铵能够提高成品的阻燃防火性,蓖麻油酸锌能够改善耐热稳定性,聚乙烯蜡则能提高各原料间的粘结强度,从而提高成品的稳定性。
Description
技术领域
本发明属于保温材料领域,具体涉及一种复合纤维增韧发泡保温材料及其制备方法。
背景技术
聚苯乙烯泡沫材料是以聚苯乙烯树脂为基料,加入发泡剂等辅助材料,经加热发泡而成的轻质材料。它具有质轻、导热系数小、吸水率低、耐水、耐老化、耐低温、易加工、价廉质优等优点,但是聚苯乙烯泡沫保温材料在给人们的生活带来巨大方便的同时,其易燃性也给它的应用带来了一定的限制。聚苯乙烯泡沫本身是易燃材料,在火灾和高温条件下极易发生分解燃烧,并伴有大量毒气产生。因此,急需开展对聚苯乙烯泡沫保温材料火灾安全性方面的研究工作;
发泡聚苯乙烯树脂的用途非常广泛,由于其具有高强度、质量轻、极佳的保温绝热性能和高吸收能量能力,可以用作各种仪表、贵重物品、精密仪器、蔬菜水果和水产品等的包装材料;而因为其具有热传导率低、吸水性小、电绝缘性好、隔音、防潮以及成型工艺简单等优良特性,而被广泛应用在道路桥梁的路基铺设和房屋建筑以及渔业捕捞和冷藏行业的保温材料等方面。其中,作为一种优良的建筑材料,发泡聚苯乙烯树脂主要用于建筑物的屋面和墙体,其作为外保温复合墙体具有十分良好的节能效果;而作为保温屋面适用于住宅、工厂、平式和柏油屋面,可以起到隔音、挡水蒸汽、密封和保温隔热等作用。作为建筑用保温材料,首要考虑的几个性能指标是低的热导率,高的阻燃能力、较好的自身强度。
发明内容
本发明的目的在于针对现有技术的缺陷和不足,提供一种复合纤维增韧发泡保温材料及其制备方法。
为实现上述目的,本发明采用以下技术方案:
一种复合纤维增韧发泡保温材料,它是由下述重量份的原料组成的:
聚苯并咪唑纤维5-7、磷酸纤维素3-4、乙二醇单丁醚0.3-1、聚乙烯蜡4-7、乙酸异丁酸蔗糖酯1-2、对甲基苯磺酸2-3、聚苯乙烯110-130、蓖麻油酸锌1-2、硼砂2-4、椰油酸二乙醇酰胺0.6-1、聚磷酸铵3-5、发泡剂7-12。
所述的发泡剂为AC发泡剂。
一种复合纤维增韧发泡保温材料的制备方法,包括以下步骤:
(1)取聚苯并咪唑纤维,加入到其重量3-4倍的二甲基甲酰胺中,送入到130-140℃的恒温水浴中,保温搅拌10-20分钟,出料,加入乙二醇单丁醚,搅拌至常温,得纤维分散液;
(2)取聚乙烯蜡,加入到其重量3-5倍的无水乙醇中,搅拌均匀,加入乙酸异丁酸蔗糖酯,在60-65℃下保温搅拌6-10分钟,得醇分散液;
(3)取磷酸纤维素,加入到其重量20-30倍的去离子水中,搅拌均匀,加入蓖麻油酸锌,送入到反应釜中,与上述醇分散液混合,超声3-4分钟,得磷酸纤维分散液;
(4)取上述纤维分散液、磷酸纤维分散液混合,搅拌均匀,加入椰油酸二乙醇酰胺,在70-75℃下保温搅拌20-30分钟,得纤维酰胺溶液;
(5)取聚磷酸铵,加入到上述纤维酰胺溶液中,搅拌均匀,过滤,将沉淀水洗,真空50-55℃下干燥1-2小时,得复合纤维;
(6)取上述复合纤维,与剩余各原料混合,搅拌均匀,送入到反应釜中,升高温度为110-120℃,保温1-2小时,冷却出料,将产物经过洗涤、干燥、筛分后送入到发泡机中,在0.25-0.3Mpa、130-140℃下蒸汽加热1-2小时,出料,室温冷却,即得所述复合纤维增韧发泡保温材料。
本发明的优点:
本发明采用聚苯并咪唑纤维、磷酸纤维素共混对聚苯乙烯材料进行改性,可以有效的提高成品材料的韧性、表面强度、拉伸强度等力学性能,本发明的发泡材料能够起到很好的隔热保温效果,经过处理的各原料间相容性好,加入的聚磷酸铵能够提高成品的阻燃防火性,蓖麻油酸锌能够改善耐热稳定性,聚乙烯蜡则能提高各原料间的粘结强度,从而提高成品的稳定性。
具体实施方式
实施例1
一种复合纤维增韧发泡保温材料,它是由下述重量份的原料组成的:
聚苯并咪唑纤维7、磷酸纤维素4、乙二醇单丁醚1、聚乙烯蜡7、乙酸异丁酸蔗糖酯1-2、对甲基苯磺酸3、聚苯乙烯130、蓖麻油酸锌2、硼砂4、椰油酸二乙醇酰胺1、聚磷酸铵5、发泡剂12。
所述的发泡剂为AC发泡剂。
一种复合纤维增韧发泡保温材料的制备方法,包括以下步骤:
(1)取聚苯并咪唑纤维,加入到其重量4倍的二甲基甲酰胺中,送入到140℃的恒温水浴中,保温搅拌20分钟,出料,加入乙二醇单丁醚,搅拌至常温,得纤维分散液;
(2)取聚乙烯蜡,加入到其重量5倍的无水乙醇中,搅拌均匀,加入乙酸异丁酸蔗糖酯,在65℃下保温搅拌10分钟,得醇分散液;
(3)取磷酸纤维素,加入到其重量30倍的去离子水中,搅拌均匀,加入蓖麻油酸锌,送入到反应釜中,与上述醇分散液混合,超声3-4分钟,得磷酸纤维分散液;
(4)取上述纤维分散液、磷酸纤维分散液混合,搅拌均匀,加入椰油酸二乙醇酰胺,在75℃下保温搅拌30分钟,得纤维酰胺溶液;
(5)取聚磷酸铵,加入到上述纤维酰胺溶液中,搅拌均匀,过滤,将沉淀水洗,真空55℃下干燥2小时,得复合纤维;
(6)取上述复合纤维,与剩余各原料混合,搅拌均匀,送入到反应釜中,升高温度为120℃,保温2小时,冷却出料,将产物经过洗涤、干燥、筛分后送入到发泡机中,在0.3Mpa、140℃下蒸汽加热1-2小时,出料,室温冷却,即得所述复合纤维增韧发泡保温材料。
实施例2
一种复合纤维增韧发泡保温材料,它是由下述重量份的原料组成的:
聚苯并咪唑纤维5、磷酸纤维素3、乙二醇单丁醚0.3、聚乙烯蜡4、乙酸异丁酸蔗糖酯1、对甲基苯磺酸2、聚苯乙烯110、蓖麻油酸锌1、硼砂2、椰油酸二乙醇酰胺0.6、聚磷酸铵3、发泡剂7。
所述的发泡剂为AC发泡剂。
一种复合纤维增韧发泡保温材料的制备方法,包括以下步骤:
(1)取聚苯并咪唑纤维,加入到其重量3倍的二甲基甲酰胺中,送入到130℃的恒温水浴中,保温搅拌10分钟,出料,加入乙二醇单丁醚,搅拌至常温,得纤维分散液;
(2)取聚乙烯蜡,加入到其重量3倍的无水乙醇中,搅拌均匀,加入乙酸异丁酸蔗糖酯,在60℃下保温搅拌6分钟,得醇分散液;
(3)取磷酸纤维素,加入到其重量20倍的去离子水中,搅拌均匀,加入蓖麻油酸锌,送入到反应釜中,与上述醇分散液混合,超声3分钟,得磷酸纤维分散液;
(4)取上述纤维分散液、磷酸纤维分散液混合,搅拌均匀,加入椰油酸二乙醇酰胺,在70℃下保温搅拌20分钟,得纤维酰胺溶液;
(5)取聚磷酸铵,加入到上述纤维酰胺溶液中,搅拌均匀,过滤,将沉淀水洗,真空50℃下干燥1小时,得复合纤维;
(6)取上述复合纤维,与剩余各原料混合,搅拌均匀,送入到反应釜中,升高温度为110℃,保温1小时,冷却出料,将产物经过洗涤、干燥、筛分后送入到发泡机中,在0.25Mpa、130℃下蒸汽加热1小时,出料,室温冷却,即得所述复合纤维增韧发泡保温材料。
性能测试:
本实施例1的复合纤维增韧发泡保温材料的阻燃性能、力学性能测试结果表明:
氧指数31、垂直燃烧等级UL-94V-0级、弯曲强度24.13Mpa,压缩强度22.25Mpa,导热系数0.029w/m.k;
本实施例2的复合纤维增韧发泡保温材料的阻燃性能、力学性能测试结果表明:
氧指数32、垂直燃烧等级UL-94V-0级、弯曲强度23.67Mpa,压缩强度22.31Mpa,导热系数0.030w/m.k。
Claims (3)
1.一种复合纤维增韧发泡保温材料,其特征在于,它是由下述重量份的原料组成的:
聚苯并咪唑纤维5-7、磷酸纤维素3-4、乙二醇单丁醚0.3-1、聚乙烯蜡4-7、乙酸异丁酸蔗糖酯1-2、对甲基苯磺酸2-3、聚苯乙烯110-130、蓖麻油酸锌1-2、硼砂2-4、椰油酸二乙醇酰胺0.6-1、聚磷酸铵3-5、发泡剂7-12。
2.根据权利要求1所述的一种复合纤维增韧发泡保温材料,其特征在于,所述的发泡剂为AC发泡剂。
3.一种如权利要求1、2中任一所述的复合纤维增韧发泡保温材料的制备方法,其特征在于,包括以下步骤:
(1)取聚苯并咪唑纤维,加入到其重量3-4倍的二甲基甲酰胺中,送入到130-140℃的恒温水浴中,保温搅拌10-20分钟,出料,加入乙二醇单丁醚,搅拌至常温,得纤维分散液;
(2)取聚乙烯蜡,加入到其重量3-5倍的无水乙醇中,搅拌均匀,加入乙酸异丁酸蔗糖酯,在60-65℃下保温搅拌6-10分钟,得醇分散液;
(3)取磷酸纤维素,加入到其重量20-30倍的去离子水中,搅拌均匀,加入蓖麻油酸锌,送入到反应釜中,与上述醇分散液混合,超声3-4分钟,得磷酸纤维分散液;
(4)取上述纤维分散液、磷酸纤维分散液混合,搅拌均匀,加入椰油酸二乙醇酰胺,在70-75℃下保温搅拌20-30分钟,得纤维酰胺溶液;
(5)取聚磷酸铵,加入到上述纤维酰胺溶液中,搅拌均匀,过滤,将沉淀水洗,真空50-55℃下干燥1-2小时,得复合纤维;
(6)取上述复合纤维,与剩余各原料混合,搅拌均匀,送入到反应釜中,升高温度为110-120℃,保温1-2小时,冷却出料,将产物经过洗涤、干燥、筛分后送入到发泡机中,在0.25-0.3Mpa、130-140℃下蒸汽加热1-2小时,出料,室温冷却,即得所述复合纤维增韧发泡保温材料。
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