CN110591176A - 一种保温隔热材料及其制备方法和用途 - Google Patents

一种保温隔热材料及其制备方法和用途 Download PDF

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CN110591176A
CN110591176A CN201910893889.3A CN201910893889A CN110591176A CN 110591176 A CN110591176 A CN 110591176A CN 201910893889 A CN201910893889 A CN 201910893889A CN 110591176 A CN110591176 A CN 110591176A
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insulating material
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王宝靓
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Langfang Tengbo Thermal Insulation Material Co Ltd
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Abstract

本发明提供一种保温隔热材料,按重量份数计,包括以下组分制得:橡胶20‑24份、有机硅树脂15‑20份、二氧化硅2‑5份、稳定剂1‑3份、填料35‑60份、增塑剂5‑9份、发泡剂5‑10份、活性剂2‑7份、硫化剂2‑5份、抗氧化剂1‑2份、阻燃剂8‑11份。通过添加包括有机硅树脂、橡胶的混合材料,通过优化各组分的用量,可以有效提高材料在保温隔热上的性能,导热系数小。

Description

一种保温隔热材料及其制备方法和用途
技术领域
本发明属于保温隔热材料技术领域,尤其涉及一种保温隔热材料以及制备该保温隔热材料的方法和用途。
技术背景
橡塑保温材料在上世纪70年代末在国外一些发达国家就已经开始了用到了建筑节能方面,强制建筑业在新建建筑中执行节能标准使用橡塑保温材料,橡塑保温材料在发达国家的应用及对建筑节能的重视并采取的一些行之有效措施,这些国家取得了巨大的成效,建筑能耗大幅度下降。如丹麦使用了橡塑保温材料后,1985年比1972年采暖面积增加了30%,但采暖能耗却减少了318万吨标准煤,由此可见,国外的建筑节能法规30多年来取得了显著的社会效益和经济效益。
橡塑保温材料是弹性闭孔弹性材料,具有柔软,耐曲绕,耐寒,耐热,阻燃,防水,导热系数低,减震,吸音等优良性能,可广泛应用于中央空调、建筑,化工,轻纺,冶金,传播,车辆,电器等行业和部分的各类冷热介质管道,容器,能达到降低冷损和热损的效果。加上施工简便,外观整洁美观,且产品不含纤维粉尘,不会滋生任何霉菌等有害物质,因此是一种高品质的跨世纪新一代绝热保温材料。
橡塑保温材料与制品、节能法规的颁布执行是影响建筑节能的影响因素,涉及一个庞大的产业群体.建筑橡塑保温材料的研制与应用越来越受到世界各国的普遍重视,新型橡塑保温材料正在不断地涌现。从建筑橡塑保温材料的材质和品种上看,国内外对以聚苯乙烯为主要原料的橡塑保温材料研究相对广泛,但绝大部分都是在板材领域,如聚苯板、钢丝网架夹芯复合内外墙板、金属复合夹芯板等。虽然聚苯板作为橡塑保温材料在使用中具有良好的保温效果,但由于板材的特点使得聚苯板在施工中与主体联接时是以点固定为主、面固定为辅,板材之间要进行必要拼接、黏结,不适应外形较复杂建筑物的保温,施工工艺较复杂、综合成本高。同时,由于聚苯板的憎水性与常规的亲水性材料不适应,导致其面层以外的后续施工质量不易保证,容易出现面层砂浆开裂、脱落、空鼓等质量问题,对建筑物的外装饰如面砖、涂料的使用或施工构成了很大的制约。不定形的浆体橡塑保温材料可以克服板材类的这些不足,因此它构成了建筑保温隔热材料的重要组成部分。欧美等发达国家在浆体橡塑保温材料的研究与应用方面起步较早,技术较为成熟,在研究和应用上已卓有成效。
橡塑保温材料浆体研制开发方面,目前,发达国家是以轻质多功能复合浆体橡塑保温材料为主。此类浆体橡塑保温材料的各项性能较传统浆体橡塑保温材料明显提高,如具有较低的导热系数和良好的使用安全性及耐久性等。同时,这类复合浆体橡塑保温材料又具有优异的功能性,如无氟里昂阻燃型聚氨酯泡沫复合浆体橡塑保温材料、超轻质全憎水硅酸钙浆体橡塑保温材料等,可以满足不同使用条件的要求。
橡塑保温材料工业的环保问题,国外也非常重视,积极发展“绿色”橡塑保温材料制品,从原材料准备(开采或运输)、产品生产及使用,及日后的处理问题,都要求最大限度地节约资源和减少对环境的危害。橡塑保温材料工业是国外资源重新回收利用的一个很成功的典型。
发明内容
现有技术中有关于保温隔热材料的报道,但是市面上的产品在保温隔热的效果上仍然存在不足,针对现有技术存在的问题,本发明提供了一种保温隔热材料,该材料具有优异的隔热性、耐候性和阻燃性。
为了实现上述保温隔热、耐候阻燃的目的,本发明具体的提供了如下方案:
一种保温隔热材料,按重量份数计,包括以下组分制得:橡胶20-24份、有机硅树脂15-20份、二氧化硅2-5份、稳定剂1-3份、填料35-60份、增塑剂5-9份、发泡剂5-10份、活性剂2-7份、硫化剂2-5份、抗氧化剂1-2份、阻燃剂8-11份。
本发明一具体实施例中,按重量份数计,包括以下组分制得:橡胶23份、有机硅树脂18份、二氧化硅3份、稳定剂2份、填料55份、增塑剂6份、发泡剂9份、活性剂3份、硫化剂5份、抗氧化剂1.5份、阻燃剂9份。
本发明一具体实施例中,所述橡胶选自包括顺丁橡胶、丁苯橡胶、硅橡胶中一种或多种。
本发明一具体实施例中,所述有机硅树脂为选自甲基有机硅树脂或甲基苯基有机硅树脂中的一种或其混合体系。
本发明一具体实施例中,所述稳定剂选自硬脂酸、硬脂酸锌、硬脂酸钙中的一种或多种。
本发明一具体实施例中,所述填料选自包括蛭石粉、长石粉、膨润土、滑石粉中一种或多种。
本发明一具体实施例中,所述增塑剂选自包括GOMGHA、ATBC、DINCH、DOA、BTHC中一种或多种。
本发明一具体实施例中,所述发泡剂选自包括偶氮二甲酰胺、二亚硝基五亚甲基四胺、苯磺酰肼、十二烷基硫酸钠、脂肪醇聚氧乙烯醚硫酸钠中一种或多种。
本发明一具体实施例中,所述活性剂为氧化锌。
本发明一具体实施例中,所述硫化剂为过氧化二异丙苯、双叔丁基过氧化异丙基苯、1,1-双(叔丁基过氧)-3,3,5-三甲基环已烷中的任一种。
本发明一具体实施例中,所述抗氧化剂为抗氧剂1076、抗氧剂168、抗氧剂1010中一种或多种。
本发明一具体实施例中,所述阻燃剂是苯氧基磷腈、二或多官能芳族含磷化合物中任一种。
本发明还提供一种制备上述保温隔热材料的方法,包括以下内容:
1)按配方称取各原料组分备料,将橡胶、有机硅树脂、填料、增塑剂投入密炼机进行密炼;
2)密炼后的所得产物投入开炼机中,加入稳定剂、活性剂、硫化剂,在开炼机上薄通炼制2-3遍;切割成小块胶片;
3)将步骤2)所得产物与抗氧化剂、阻燃剂投入开炼机中,在开炼机上薄通炼制2-3遍,切片,冷却备用;
4)将步骤3)所得切片放入挤出机中,加入发泡剂,挤出至模具中模压发泡,发泡好后,卸压,取出模具,待冷却后即得。
本发明一具体实施例中,步骤1)中,密炼机温度为115-125℃,密炼时间为10-15min。
本发明一具体实施例中,步骤2)中,开炼温度为120-125℃;步骤3)中,开炼温度为100-110℃。
本发明一具体实施例中,步骤4)中,所述挤出机为双螺杆挤出机,其中双螺杆挤出机的各区温度为:一区120-130℃,二区130-140℃,三区140-150℃,四区150-160℃,五区160-170℃,六区175-185℃,七区185-190℃,机头180-200℃,双螺杆挤出机转速为100-200r/min。
本发明一具体实施例中,步骤4)中,模温为150-165℃,模压为6-7.5MPa,发泡时间为6-8min。
本发明还提供了一种采用上述材料制备得到保温隔热制品;如保温隔热棉、保温隔热板等。
本发明还提供了上述材料在制备得到保温隔热制品中的用途。
与现有技术相比,本发明的有益效果:
一、通过添加包括有机硅树脂、橡胶的混合材料,通过优化各组分的用量,可以有效提高材料在保温隔热上的性能,导热系数小。
二、采用本发明保温隔热材料,使用温度范围宽,可达到-20-120℃,使用寿命长可达2年,市场前景广阔。
具体实施方式
下面将对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
本申请中,若无特殊申明所选用的原料均可通过市售购买得到。
实施例1
一种制备保温隔热材料的方法,包括以下内容:
1)按配方称取各原料组分备料,将橡胶20份、有机硅树脂15份、填料3份、增塑剂5份、二氧化硅5份投入密炼机进行密炼,密炼机温度为115℃,密炼时间为10min;
2)密炼后的所得产物投入开炼机中,加入稳定剂1份、活性剂2份、硫化剂2份,在开炼机上薄通炼制2遍,开炼温度为120℃;切割成小块胶片;
3)将步骤2)所得产物与抗氧化剂1份、阻燃剂8份投入开炼机中,在开炼机上薄通炼制2遍,开炼温度为100℃,切片,冷却备用;
4)将步骤3)所得切片放入挤出机中,加入发泡剂5份,挤出至模具中模压发泡,发泡好后,卸压,取出模具,待冷却后即得;
其中挤出机为双螺杆挤出机,其中双螺杆挤出机的各区温度为:一区120℃,二区130℃,三区140℃,四区150℃,五区160℃,六区175℃,七区185℃,机头180℃,双螺杆挤出机转速为100r/min;模具中,模温为150℃,模压为6MPa,发泡时间为6min。
实施例2
一种制备保温隔热材料的方法,包括以下内容:
1)按配方称取各原料组分备料,将橡胶21份、有机硅树脂17份、填料42份、增塑剂6份、二氧化硅4份投入密炼机进行密炼,密炼机温度为118℃,密炼时间为12min;
2)密炼后的所得产物投入开炼机中,加入稳定剂1.5份、活性剂3份、硫化剂3份,在开炼机上薄通炼制2遍,开炼温度为122℃;切割成小块胶片;
3)将步骤2)所得产物与抗氧化剂1.5份、阻燃剂8.5份投入开炼机中,在开炼机上薄通炼制2遍,开炼温度为105℃,切片,冷却备用;
4)将步骤3)所得切片放入挤出机中,加入发泡剂6份,挤出至模具中模压发泡,发泡好后,卸压,取出模具,待冷却后即得;
其中挤出机为双螺杆挤出机,其中双螺杆挤出机的各区温度为:一区128℃,二区137℃,三区146℃,四区156℃,五区166℃,六区180℃,七区18℃,机头190℃,双螺杆挤出机转速为150r/min;模具中,模温为155℃,模压为6.5MPa,发泡时间为7min。
实施例3
一种制备保温隔热材料的方法,包括以下内容:
1)按配方称取各原料组分备料,将橡胶24份、有机硅树脂20份、填料60份、增塑剂9份、二氧化硅2份投入密炼机进行密炼,密炼机温度为125℃,密炼时间为15min;
2)密炼后的所得产物投入开炼机中,加入稳定剂3份、活性剂7份、硫化剂5份,在开炼机上薄通炼制3遍,开炼温度为125℃;切割成小块胶片;
3)将步骤2)所得产物与抗氧化剂2份、阻燃剂11份投入开炼机中,在开炼机上薄通炼制3遍,开炼温度为110℃,切片,冷却备用;
4)将步骤3)所得切片放入挤出机中,加入发泡剂10份,挤出至模具中模压发泡,发泡好后,卸压,取出模具,待冷却后即得;
其中挤出机为双螺杆挤出机,其中双螺杆挤出机的各区温度为:一区130℃,二区140℃,三区150℃,四区160℃,五区170℃,六区185℃,七区190℃,机头200℃,双螺杆挤出机转速为200r/min;模具中,模温为165℃,模压为7.5MPa,发泡时间为8min。
实施例4
一种制备保温隔热材料的方法,包括以下内容:
1)按配方称取各原料组分备料,将橡胶23份、有机硅树脂18份、填料55份、增塑剂6份、二氧化硅3份投入密炼机进行密炼,密炼机温度为120℃,密炼时间为13min;
2)密炼后的所得产物投入开炼机中,加入稳定剂2份、活性剂3份、硫化剂5份,在开炼机上薄通炼制3遍,开炼温度为125℃;切割成小块胶片;
3)将步骤2)所得产物与抗氧化剂1.5份、阻燃剂9份投入开炼机中,在开炼机上薄通炼制3遍,开炼温度为110℃,切片,冷却备用;
4)将步骤3)所得切片放入挤出机中,加入发泡剂9份,挤出至模具中模压发泡,发泡好后,卸压,取出模具,待冷却后即得;
其中挤出机为双螺杆挤出机,其中双螺杆挤出机的各区温度为:一区125℃,二区135℃,三区145℃,四区155℃,五区165℃,六区175℃,七区188℃,机头180℃,双螺杆挤出机转速为200r/min;模具中,模温为165℃,模压为7.5MPa,发泡时间为6min。
以上实施例中各工艺参数如温度、转速等可在上下浮动0.5%。
对比例1
与实施例4区别在于,不采用二氧化硅作为原料。
对比例2
与实施例4区别在于,不采用有机硅树脂作为原料。
对比例3
与实施例4区别在于,挤出机各区温度下调5℃。
对比例4
与实施例4区别在于,挤出机各区温度上调5℃。
对比例5
与实施例4区别在于,模具模温为140℃、模压为4.5MPa。
上述各实施例制得产品经过相应的测试,结果如下表1:
导热系数:用HOT-DISK热常数分析仪测定试样的导热系数。试验中所用探头直径6.5mm,输出功率0.05W,测试时间80s,初始温度25℃,TCR0.047K-1
密度:制品密度的测定按照标准GB/T6343-2009泡沫塑料及橡胶表观密度进行测定。
燃烧性能:按照UL94进行测定。
力学性能:拉伸强度按GB528-82进行测试。
耐候性:紫外线光照1000小时,样品黄指数变化差值,越大表示耐候性越差。
抗老化:ISO4892-2进行测定。
表1为各实施例制得产品的测定结果
其中,随机选择实施例1所制得产品应用于100℃的环境中进行实际检测,两年后测试各项性能,发现与表1所测的数值变化不大,略微有所下降。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。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 (10)

1.一种保温隔热材料,其特征在于,按重量份数计,包括以下组分制得:橡胶20-24份、有机硅树脂15-20份、二氧化硅2-5份、稳定剂1-3份、填料35-60份、增塑剂5-9份、发泡剂5-10份、活性剂2-7份、硫化剂2-5份、抗氧化剂1-2份、阻燃剂8-11份。
2.根据权利要求1所述保温隔热材料,其特征在于:所述有机硅树脂为选自甲基有机硅树脂或甲基苯基有机硅树脂中的一种或其混合体系。
3.根据权利要求1所述保温隔热材料,其特征在于:所述稳定剂选自硬脂酸、硬脂酸锌、硬脂酸钙中的一种或多种。
4.根据权利要求1所述保温隔热材料,其特征在于:所述增塑剂选自包括GOMGHA、ATBC、DINCH、DOA、BTHC中一种或多种。
5.根据权利要求1所述保温隔热材料,其特征在于:所述发泡剂选自包括偶氮二甲酰胺、二亚硝基五亚甲基四胺、苯磺酰肼、十二烷基硫酸钠、脂肪醇聚氧乙烯醚硫酸钠中一种或多种。
6.如权利要求1-5任一所述保温隔热材料的制备方法,其特征在于,包括以下内容:
1)按配方称取各原料组分备料,将橡胶、有机硅树脂、填料、增塑剂投入密炼机进行密炼;
2)密炼后的所得产物投入开炼机中,加入稳定剂、活性剂、硫化剂,在开炼机上薄通炼制2-3遍;切割成小块胶片;
3)将步骤2)所得产物与抗氧化剂、阻燃剂投入开炼机中,在开炼机上薄通炼制2-3遍,切片,冷却备用;
4)将步骤3)所得切片放入挤出机中,加入发泡剂,挤出至模具中模压发泡,发泡好后,卸压,取出模具,待冷却后即得。
7.根据权利要求6所述保温隔热材料的制备方法,其特征在于容:步骤1)中,密炼机温度为115-125℃,密炼时间为10-15min;步骤2)中,开炼温度为120-125℃;步骤3)中,开炼温度为100-110℃。
8.根据权利要求6所述保温隔热材料的制备方法,其特征在于容:步骤4)中,所述挤出机为双螺杆挤出机,其中双螺杆挤出机的各区温度为:一区120-130℃,二区130-140℃,三区140-150℃,四区150-160℃,五区160-170℃,六区175-185℃,七区185-190℃,机头180-200℃,双螺杆挤出机转速为100-200r/min;模温为150-165℃,模压为6-7.5MPa,发泡时间为6-8min。
9.采用如权利要求1-5任一所述保温隔热材料制备得到的保温隔热制品。
10.如权利要求1-5任一所述保温隔热材料在制备保温隔热制品中的用途。
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