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CN111169127A - 一种隔音降噪的复合型波浪板瓦及其生产工艺 - Google Patents

一种隔音降噪的复合型波浪板瓦及其生产工艺 Download PDF

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CN111169127A
CN111169127A CN202010055367.9A CN202010055367A CN111169127A CN 111169127 A CN111169127 A CN 111169127A CN 202010055367 A CN202010055367 A CN 202010055367A CN 111169127 A CN111169127 A CN 111169127A
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composite
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flame retardant
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李中伟
董豪
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Jieshou Fengyang Plastic Industry Co Ltd
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Abstract

本发明公开了一种隔音降噪的复合型波浪板瓦,为两层复合结构,包括PC层和吸音层;所述PC层由如下重量份原料制成:PC树脂60‑70份、聚丙烯腈‑丁二烯‑苯乙烯共聚物15‑20份、紫外线吸收剂0.8‑1份、复合填料2‑3份、复配阻燃剂0.5‑0.7份;所述隔音层为改性膨胀石墨共混的聚氨酯硬泡材料;本发明还公开了该复合型波浪板瓦的生产工艺。本发明的复合型波浪板瓦,其中PC层由PC树脂作为聚合物基体,采用ABS共聚物进行共混改性,并辅配复配阻燃剂和复合填料,PC层具有良好的隔热、力学和隔声性能;吸音层具有优良的吸声隔音作用和阻燃性能;得到的复合型波浪板瓦具有良好的隔音降噪和阻燃性能,是一种高性能的屋面材料产品。

Description

一种隔音降噪的复合型波浪板瓦及其生产工艺
技术领域
本发明属于波浪板领域,具体地,涉及一种隔音降噪的复合型波浪板瓦及其生产工艺。
背景技术
波浪板也称瓦椤板,传统的波浪板包括石棉瓦和玻璃钢瓦。近年来,石棉瓦生产由于对环境所造成的污染及对工人身体所造成的危害已引起人们越来越多的关注,许多地方都在逐渐关闭这些石棉瓦生产厂家。而玻璃钢瓦由于性脆和抗撕裂性差等缺点,也不能满足市场的实际需求。在此基础上,目前已有一种塑料波浪板应运而生。比之石棉瓦或而玻璃钢瓦,塑料波浪板具有强度较好、施工方便、装饰效果较佳等特点而成为新的替代品,已广泛用于建筑、装修等行业。
但由于现有塑料波浪板多为PVC制品,是从口模直接挤出成型的,抗冲击性能差,使用寿命较短,阻燃性也不十分理想;另外,在隔音降噪方面仍然存在不足。
发明内容
本发明的目的在于提供一种隔音降噪的复合型波浪板瓦及其生产工艺,复合型波浪板瓦,为两层复合结构,包括PC层和吸音层,其中PC层由PC树脂作为聚合物基体,采用ABS共聚物进行共混改性,并辅配复配阻燃剂和复合填料;ABS共混改性能够获得综合性能优异的聚合物基体,复配阻燃剂能够赋予PC层良好的阻燃性能;复合填料的加入能够一定程度上提高PC层的隔热、力学和隔声性能;吸音层具有优良的吸声隔音作用和阻燃性能;得到的复合型波浪板瓦具有良好的隔音降噪和阻燃性能,是一种高性能的屋面材料产品。
本发明的目的可以通过以下技术方案实现:
一种隔音降噪的复合型波浪板瓦,为两层复合结构,包括PC层和吸音层;
所述PC层由如下重量份原料制成:PC树脂60-70份、聚丙烯腈-丁二烯-苯乙烯共聚物15-20份、紫外线吸收剂0.8-1份、复合填料2-3份、复配阻燃剂0.5-0.7份;
所述PC层由如下方法制备:
S1、将PC树脂和聚丙烯腈-丁二烯-苯乙烯共聚物置于鼓风干燥箱中120℃干燥处理8h;
S2、将干燥后的PC树脂、聚丙烯腈-丁二烯-苯乙烯共聚物、紫外线吸收剂、填料和复配阻燃剂在高速混合机中初混合10min,再利用单螺杆挤出机进行挤压造粒,制成聚碳酸酯平板,得到PC层;
所述吸音层由如下方法制备:
(1)按照固液比1g:120mL将膨胀石墨置于浓酸中,室温下超声4h,过滤、用去离子水洗至中性,60-65℃真空干燥3h,得到氧化膨胀石墨;
(2)将氧化膨胀石墨置于4-氨基苯丙胺二盐酸盐的水溶液中,室温下超声30min后,于120-130℃油浴下反应4h,抽滤、醇洗、水洗至中性,60-65℃真空干燥3h,得到改性膨胀石墨;
(3)将聚醚多元醇、正戊烷、泡沫稳定剂、改性膨胀石墨和胺类复合催化剂均匀混合作为预混料,将预混料和异佛尔酮二异氰酸酯于塑料量杯中混合并剧烈搅拌10-12s后,快速导入模具中封闭并置于100℃下熟化4h,脱模,制得吸音层;
异佛尔酮二异氰酸酯、聚醚多元醇、正戊烷、泡沫稳定剂、改性膨胀石墨和胺类复合催化剂的用量之比为70:50:1:18:1。
进一步地,所述PC层的厚度为2.8-4mm,吸音层的厚度为1.2-1.6mm。
进一步地,所述复配阻燃剂为溴化苯乙烯和三氧化二锑组成的复配物,二者的质量之比为5:1。
进一步地,所述复合填料由如下方法制备:
(1)按照料液比将MoS2加入至水合肼中,溶胀处理46-50min,得到预处理MoS2
(2)将处理后的MoS2置于浓H2SO4溶液中,常温搅拌28-30min,使硫酸根离子插入到MoS2的夹层中,将插层后的MoS2进行超声处理,使二硫化钼片层分离,得到MoS2纳米片;
(3)将硬脂酸钙和白油混合后,与MoS2纳米片、二氧化硅投入至高混机中共混,共混温度为40℃,共混时间120-130min,得到复合填料;其中,硬脂酸钙、白油、MoS2纳米片和二氧化硅的质量之比为1:1:50:40。
一种隔音降噪的复合型波浪板瓦的生产工艺,包括如下步骤:
第一步、将PC层和吸音层通过热压复合,得到复合平板;
第二步、对复合平板进行预热和加热,预热温度70-80℃,加热温度150-160℃,受热软化的聚碳酸酯平板用成型辊挤压定型,形成波浪形板;
第三步、对波浪形板进行切边处理,再回火、校直、牵引、切割、检验、包装,得到所述复合型波浪板瓦。
本发明的有益效果:
本发明的复合型波浪板瓦,为两层复合结构,包括PC层和吸音层;其中PC层由PC树脂作为聚合物基体,采用ABS共聚物进行共混改性,并辅配复配阻燃剂和复合填料;ABS共混改性能够获得综合性能优异的聚合物基体,复配阻燃剂能够赋予PC层良好的阻燃性能;复合填料的加入能够一定程度上提高PC层的隔热、力学和隔声性能,具体的,硬酯酸钙溶解于白油后,其上的羧基可与MoS2纳米片和二氧化硅表面的-OH发生反应,使无机填料表面接枝上长碳链,进而改善MoS2纳米片和二氧化硅与PC基体的界面相容性;另外,表面吸附有羟基的MoS2纳米片与二氧化硅之间具有耦合效应和静电吸引作用,能够打破二氧化硅颗粒之间的团聚,分散二氧化硅形成较为均匀的混合填料体系;复配填料能够与PC分子链之间形成强的界面相互作用力,一方面,能够阻碍PC分子链段的运动,使得复合材料中PC分子链需要更多的能量来完成玻璃化转变,提高玻璃化转变温度(Tg),提高复合材料的耐热性能;另一方面,强的界面作用力在微相区间内形成相分离,有效地改善复合材料的阻尼性能,耗散作用于材料上的能量,提高PC层的力学性能;此外,PC基体与复合填料粒子界面粘结强度越高,且MoS2纳米片为片层状,比表面积大,当声波传入PC层后需要克服更大的阻力,从而提高PC层的隔声性能;
本发明采用的吸音层为改性聚氨酯泡沫塑料,采用改性膨胀石墨对聚氨酯硬泡进行共混改性,膨胀石墨先通过浓酸进行处理,表面形成较多-OH,氧化膨胀石墨表面的-COOH与4-氨基苯丙胺表面的氨基发生反应,使4-氨基苯丙胺接枝于氧化膨胀石墨上,一方面,能够改善膨胀石墨与聚氨酯泡沫的相容性,另一方面,裸露的氨基官能团能够与PC层基体的酯基作用,增强吸音层和PC层的结合力;改性膨胀石墨是一种具有多孔结构的蠕虫状物质,将其添加到聚氨酯硬泡之中后,其多孔结构将PUR硬泡封闭的泡沫结构贯穿起来,形成了一种贯通的、具有密集多孔结构的复合材料,这种相互贯通的多孔结构有利于声能的耗散,从而起到优异的吸声隔音作用;另外,膨胀石墨具有表面积大、阻燃性能优异等特点,将其作为吸音层材料之一,不仅能够提高隔音性能,而且能够提高吸音层的阻燃性能;
本发明的复合型波浪板瓦,为两层复合结构,包括PC层和吸音层,其中PC层由PC树脂作为聚合物基体,采用ABS共聚物进行共混改性,并辅配复配阻燃剂和复合填料;ABS共混改性能够获得综合性能优异的聚合物基体,复配阻燃剂能够赋予PC层良好的阻燃性能;复合填料的加入能够一定程度上提高PC层的隔热、力学和隔声性能;吸音层具有优良的吸声隔音作用和阻燃性能;得到的复合型波浪板瓦具有良好的隔音降噪和阻燃性能,是一种高性能的屋面材料产品。
具体实施方式
下面将结合实施例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作出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
一种隔音降噪的复合型波浪板瓦,为两层复合结构,包括PC层和吸音层;
具体的,PC层由如下重量份原料制成:PC树脂(聚碳酸酯)60-70份、聚丙烯腈-丁二烯-苯乙烯共聚物(ABS)15-20份、紫外线吸收剂0.8-1份、复合填料2-3份、复配阻燃剂0.5-0.7份;
其中,紫外线吸收剂为2-(2’-羟基-5’-甲基苯基)苯并三唑;该化合物有选择性地强烈吸收紫外线,把吸收的能量转化为热能或无害的辐射释放出去,本身不发生化学变化,避免聚合物材料遭受紫外线的破坏,起到保护聚合物基体材料的作用;
复配阻燃剂为溴化苯乙烯和三氧化二锑组成的复配物,二者的质量之比为5:1;该复配阻燃主要是通过二者的协同作用起到优良的阻燃效果的,兼具气相阻燃和凝聚相阻燃作用,三氧化二锑可以和溴化苯乙烯燃烧过程中分解产生的HBr反应,生成三溴化锑(SbBr3)或溴氧化锑(SbOBr),SbBr3/SbOBr蒸气的密度大,能够停滞在燃烧物表面,起到稀释空气和覆盖作用,且其能与气相中的自由基反应,起到消耗热量而使火焰猝灭的效果,使PC基体达到优良的阻燃性能;
聚丙烯腈-丁二烯-苯乙烯共聚物(ABS)的加工流动性能较好,缺口敏感度低,尺寸稳定性好,冲击强度高,吸水率较低,但其耐热性和耐候性都差,另外力学强度不高;PC和ABS互相取长补短复配制备的PC/ABS复合材料综合性能优异,与PC相比熔体黏度低,加工流动性能好,对缺口敏感度低,与ABS相比热变形温度和力学强度都高,而且外观良好,具备较好的光泽度;
复合填料由如下方法制备:二硫化钼0.5%;
(1)按照料液比将MoS2加入至水合肼中,溶胀处理46-50min,得到预处理MoS2
(2)将处理后的MoS2置于浓H2SO4溶液(质量分数80%)中,常温搅拌28-30min,使硫酸根离子插入到MoS2的夹层中,将插层后的MoS2进行超声处理,使二硫化钼片层分离,得到MoS2纳米片;先通过水合肼溶胀,溶胀后采用硫酸根离子插层,最后超声分离,这种方法制备的二硫化钼纳米片结构稳定、产率高、纯度大且层数较少,具有较大的比表面积,并且经过浓酸处理,MoS2纳米片表面吸附有较多-OH;
(3)将硬脂酸钙和白油混合后,与MoS2纳米片、二氧化硅投入至高混机中共混,共混温度为40℃,共混时间120-130min,得到复合填料;其中,硬脂酸钙、白油、MoS2纳米片和二氧化硅的质量之比为1:1:50:40;
硬酯酸钙溶解于白油后,其上的羧基可与MoS2纳米片和二氧化硅表面的-OH发生反应,使无机填料表面接枝上长碳链,进而改善MoS2纳米片和二氧化硅与PC基体的界面相容性;另外,表面吸附有羟基的MoS2纳米片与二氧化硅之间具有耦合效应和静电吸引作用,能够打破二氧化硅颗粒之间的团聚,分散二氧化硅形成较为均匀的混合填料体系;复配填料能够与PC分子链之间形成强的界面相互作用力,一方面,能够阻碍PC分子链段的运动,使得复合材料中PC分子链需要更多的能量来完成玻璃化转变,提高玻璃化转变温度(Tg),提高复合材料的耐热性能;另一方面,强的界面作用力在微相区间内形成相分离,有效地改善复合材料的阻尼性能,耗散作用于材料上的能量,提高PC层的力学性能;此外,PC基体与复合填料粒子界面粘结强度越高,且MoS2纳米片为片层状,比表面积大,当声波传入PC层后需要克服更大的阻力,从而提高PC层的隔声性能;
PC层由如下方法制备:
S1、将PC树脂和聚丙烯腈-丁二烯-苯乙烯共聚物置于鼓风干燥箱中120℃干燥处理8h;
S2、将干燥后的PC树脂、聚丙烯腈-丁二烯-苯乙烯共聚物、紫外线吸收剂、填料和复配阻燃剂在高速混合机中初混合10min,再利用单螺杆挤出机进行挤压造粒,制成厚度为2.8-4mm的聚碳酸酯平板,得到PC层,单螺杆挤出机的加工温度:240-260℃,主机转速:400rpm,喂料量:50kg/h;
吸音层由如下方法制备:
(1)按照固液比1g:120mL将膨胀石墨置于浓酸中,室温下超声4h,过滤、用去离子水洗至中性,60-65℃真空干燥3h,得到氧化膨胀石墨;浓酸为质量分数为98%的H2SO4和68%HNO3按照体积比3:1混合得到,膨胀石墨经过浓酸氧化处理,表面形成较多的-COOH;
(2)将氧化膨胀石墨置于4-氨基苯丙胺二盐酸盐的水溶液中,室温下超声30min后,于120-130℃油浴下反应4h,抽滤、醇洗、水洗至中性,60-65℃真空干燥3h,得到改性膨胀石墨;氧化膨胀石墨与4-氨基苯丙胺二盐酸盐的用量之比为5:0.7,氧化膨胀石墨表面的-COOH与4-氨基苯丙胺表面的氨基发生反应,使4-氨基苯丙胺接枝于氧化膨胀石墨上,一方面,能够改善膨胀石墨与聚氨酯泡沫的相容性,另一方面,裸露的氨基官能团能够与PC层基体的酯基作用,增强吸音层和PC层的结合力;
(3)将聚醚多元醇、正戊烷、泡沫稳定剂、改性膨胀石墨和胺类复合催化剂均匀混合作为预混料,将预混料和异佛尔酮二异氰酸酯于塑料量杯中混合并剧烈搅拌10-12s后,快速导入模具中封闭并置于100℃下熟化4h,脱模,制得吸音层;控制吸音层的厚度为1.2-1.6mm;
异佛尔酮二异氰酸酯、聚醚多元醇、正戊烷、泡沫稳定剂、改性膨胀石墨和胺类复合催化剂的用量之比为70:50:1:18:1;
改性膨胀石墨是一种具有多孔结构的蠕虫状物质,将其添加到聚氨酯硬泡之中后,其多孔结构将PUR硬泡封闭的泡沫结构贯穿起来,形成了一种贯通的、具有密集多孔结构的复合材料,这种相互贯通的多孔结构有利于声能的耗散,从而起到优异的吸声隔音作用;另外,膨胀石墨具有表面积大、阻燃性能优异等特点,将其作为吸音层材料之一,不仅能够提高隔音性能,而且能够提高吸音层的阻燃性能;
该复合型波浪板瓦的生产工艺,包括如下步骤:
第一步、将PC层和吸音层通过热压复合,得到复合平板;
第二步、对复合平板进行预热和加热,预热温度70-80℃,加热温度150-160℃,受热软化的聚碳酸酯平板用成型辊挤压定型,形成波浪形板;
第三步、对波浪形板进行切边处理,再回火、校直、牵引、切割、检验、包装,得到所述复合型波浪板瓦。
实施例1
所述PC层由如下重量份原料制成:PC树脂60份、聚丙烯腈-丁二烯-苯乙烯共聚物15份、紫外线吸收剂0.8份、复合填料2份、复配阻燃剂0.5份。
实施例2
所述PC层由如下重量份原料制成:PC树脂65份、聚丙烯腈-丁二烯-苯乙烯共聚物18份、紫外线吸收剂0.9份、复合填料2.5份、复配阻燃剂0.6份。
实施例3
所述PC层由如下重量份原料制成:PC树脂70份、聚丙烯腈-丁二烯-苯乙烯共聚物20份、紫外线吸收剂1份、复合填料3份、复配阻燃剂0.7份。
对比例1
将实施例1中的复合填料中二硫化钼纳米片换成不经过任何处理的纳米片而制得的复合填料,其余原料及制备过程不变。
对比例2
将实施例1中的复合填料换成同等质量的二氧化硅和二硫化钼,其余原料及制备过程不变。
将实施例1-3和对比例1-2的PC层加工成测试样条,进行如下性能测试:
冲击性能按GB/T 8809-2015进行测试;拉伸性能按GB/T 1040.2-2006测试;缓慢升温,测试Tg;隔声性能测试按照GB/T 18696.2-2002进行测试;燃烧性能按照美国UL 94标准进行测试;测试结果如下表1:
表1
Figure BDA0002372609730000101
由表1可知,实施例1-3制得的PC层材料的拉伸强度为45.8-46.3MPa,断裂伸长率为24.5-24.9%,冲击强度为12.3-12.5kJ·m-2,可知,实施例1-3制得的PC层材料的力学性能优异;实施例1-3制得的玻璃化转变温度为385-390℃,说明耐热性能好;实施例1-3得到的PC层材料在1/3倍频程计权隔声量为27.9-28.8dB,说明本发明制得的PC层材料具有良好的隔声性能;实施例1-3制得PC层的UL-94燃烧等级为V-0,具有良好的阻燃性能;结合对比例1,说明二硫化钼纳米片经过本发明的处理后再制备复合填料,能够提高复合材料的力学性能、隔热性能和隔声性能;结合对比例2,说明复合填料的加入能够一定程度上提高PC层的力学性能、隔热性能和隔声性能。
实施例4
吸音层由如下方法制备:
(1)按照固液比1g:120mL将膨胀石墨置于浓酸中,室温下超声4h,过滤、用去离子水洗至中性,60℃真空干燥3h,得到氧化膨胀石墨;浓酸为质量分数为98%的H2SO4和68%HNO3按照体积比3:1混合得到;
(2)将氧化膨胀石墨置于4-氨基苯丙胺二盐酸盐的水溶液中,室温下超声30min后,于120℃油浴下反应4h,抽滤、醇洗、水洗至中性,60℃真空干燥3h,得到改性膨胀石墨;氧化膨胀石墨与4-氨基苯丙胺二盐酸盐的用量之比为5:0.7;
(3)将聚醚多元醇、正戊烷、泡沫稳定剂、改性膨胀石墨和胺类复合催化剂均匀混合作为预混料,将预混料和异佛尔酮二异氰酸酯于塑料量杯中混合并剧烈搅拌10s后,快速导入模具中封闭并置于100℃下熟化4h,脱模,制得吸音层;异佛尔酮二异氰酸酯、聚醚多元醇、正戊烷、泡沫稳定剂、改性膨胀石墨和胺类复合催化剂的用量之比为70:50:1:18:1。
对比例3
将聚醚多元醇、正戊烷、泡沫稳定剂、膨胀石墨和胺类复合催化剂均匀混合作为预混料,将预混料和异佛尔酮二异氰酸酯于塑料量杯中混合并剧烈搅拌10s后,快速导入模具中封闭并置于100℃下熟化4h,脱模,制得吸音层;异佛尔酮二异氰酸酯、聚醚多元醇、正戊烷、泡沫稳定剂、膨胀石墨和胺类复合催化剂的用量之比为70:50:1:18:1;此处,膨胀石墨为普通膨胀石墨。
对比例4
将聚醚多元醇、正戊烷、泡沫稳定剂和胺类复合催化剂均匀混合作为预混料,将预混料和异佛尔酮二异氰酸酯于塑料量杯中混合并剧烈搅拌10s后,快速导入模具中封闭并置于100℃下熟化4h,脱模,制得吸音层;异佛尔酮二异氰酸酯、聚醚多元醇、正戊烷、泡沫稳定剂和胺类复合催化剂的用量之比为70:50:1:1。
对实施例4和对比例3和4制得的吸音层进行如下性能测试:
极限氧指数测试:利用氧指数分析仪测试,测试方法按照GB/T 2406.1-2008标准执行;隔声性能测试按照GB/T 18696.2-2002进行测试,测试结果如下表2所示:
表2
Figure BDA0002372609730000121
由表2可知,实施例4制得的吸音层的极限氧指数为28.5%,属于难燃物,具有良好的阻燃性能;1/3倍频程计权隔声量为29.5dB,具有良好的隔声性能;结合对比例3和4,说明本发明加入的改性膨胀石墨能够提高聚氨酯硬泡的隔声性能和阻燃性能。
以上公开的本发明优选实施例只是用于帮助阐述本发明。优选实施例并没有详尽叙述所有的细节,也不限制该发明仅为所述的具体实施方式。显然,根据本说明书的内容,可作很多的修改和变化。本说明书选取并具体描述这些实施例,是为了更好地解释本发明的原理和实际应用,从而使所属技术领域技术人员能很好地理解和利用本发明。本发明仅受权利要求书及其全部范围和等效物的限制。

Claims (5)

1.一种隔音降噪的复合型波浪板瓦,其特征在于,为两层复合结构,包括PC层和吸音层;
所述PC层由如下重量份原料制成:PC树脂60-70份、聚丙烯腈-丁二烯-苯乙烯共聚物15-20份、紫外线吸收剂0.8-1份、复合填料2-3份、复配阻燃剂0.5-0.7份;
所述PC层由如下方法制备:
S1、将PC树脂和聚丙烯腈-丁二烯-苯乙烯共聚物置于鼓风干燥箱中120℃干燥处理8h;
S2、将干燥后的PC树脂、聚丙烯腈-丁二烯-苯乙烯共聚物、紫外线吸收剂、填料和复配阻燃剂在高速混合机中初混合10min,再利用单螺杆挤出机进行挤压造粒,制成聚碳酸酯平板,得到PC层;
所述吸音层由如下方法制备:
(1)按照固液比1g:120mL将膨胀石墨置于浓酸中,室温下超声4h,过滤、用去离子水洗至中性,60-65℃真空干燥3h,得到氧化膨胀石墨;
(2)将氧化膨胀石墨置于4-氨基苯丙胺二盐酸盐的水溶液中,室温下超声30min后,于120-130℃油浴下反应4h,抽滤、醇洗、水洗至中性,60-65℃真空干燥3h,得到改性膨胀石墨;
(3)将聚醚多元醇、正戊烷、泡沫稳定剂、改性膨胀石墨和胺类复合催化剂均匀混合作为预混料,将预混料和异佛尔酮二异氰酸酯于塑料量杯中混合并剧烈搅拌10-12s后,快速导入模具中封闭并置于100℃下熟化4h,脱模,制得吸音层;
异佛尔酮二异氰酸酯、聚醚多元醇、正戊烷、泡沫稳定剂、改性膨胀石墨和胺类复合催化剂的用量之比为70:50:1:18:1。
2.根据权利要求1所述的一种隔音降噪的复合型波浪板瓦,其特征在于,所述PC层的厚度为2.8-4mm,吸音层的厚度为1.2-1.6mm。
3.根据权利要求1所述的一种隔音降噪的复合型波浪板瓦,其特征在于,所述复配阻燃剂为溴化苯乙烯和三氧化二锑组成的复配物,二者的质量之比为5:1。
4.根据权利要求1所述的一种隔音降噪的复合型波浪板瓦,其特征在于,所述复合填料由如下方法制备:
(1)按照料液比将MoS2加入至水合肼中,溶胀处理46-50min,得到预处理MoS2
(2)将处理后的MoS2置于浓H2SO4溶液中,常温搅拌28-30min,使硫酸根离子插入到MoS2的夹层中,将插层后的MoS2进行超声处理,使二硫化钼片层分离,得到MoS2纳米片;
(3)将硬脂酸钙和白油混合后,与MoS2纳米片、二氧化硅投入至高混机中共混,共混温度为40℃,共混时间120-130min,得到复合填料;其中,硬脂酸钙、白油、MoS2纳米片和二氧化硅的质量之比为1:1:50:40。
5.根据权利要求1所述的一种隔音降噪的复合型波浪板瓦的生产工艺,其特征在于,包括如下步骤:
第一步、将PC层和吸音层通过热压复合,得到复合平板;
第二步、对复合平板进行预热和加热,预热温度70-80℃,加热温度150-160℃,受热软化的聚碳酸酯平板用成型辊挤压定型,形成波浪形板;
第三步、对波浪形板进行切边处理,再回火、校直、牵引、切割、检验、包装,得到所述复合型波浪板瓦。
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