CN115260560B - 一种轻质环保纤维瓦的加工方法 - Google Patents
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Abstract
本发明涉及一种轻质环保纤维瓦的加工方法,属于建筑新材料技术领域。包括如下步骤:制备植物纤维、胶料以及沥青;将植物纤维运输至原料储料仓中,实际加工时,原料储料仓中的植物纤维依次通过干燥机、冷却机进入干料储备仓,烘干待用;将胶桶中灌注胶料,胶料通过喷胶装置喷出,从而将植物纤维和胶料置入拌胶机中混合得到混合物,称重后将所述混合物铺装于热压机中进行热压成型,得到轻质环保纤维瓦胚;通过人工打磨后依次浸渍沥青、冷却、喷漆、检验、成品包装以及仓储后发货。本发明有效解决了环保、抗冲击以及消音性能的问题。
Description
技术领域
本发明涉及一种轻质环保纤维瓦的加工方法,属于建筑新材料技术领域。
技术背景
随着现代土烧瓦片的退市,水泥瓦片虽然造价足够低廉,但缺乏足够的耐候性能,常出现的断裂剥落,成为困扰开发商的一大难题,特别是高层建筑中使用,瓦片的剥落所带来的危害已不仅仅是担心的防水问题了。此外,随着国内旧房改造,平改坡以及节能改造的需求日益突出。另外,现有瓦片很不美观,因此需要改进现有瓦片以满足建筑行业日益增长的需求。
砖陶瓦、琉璃瓦、油毡、水泥和三油二毡以及金属瓦均是屋顶最常用的屋顶铺盖层,如果考虑到以木结构为主的建筑物,由于建筑本身的承重能力差,顶部遮阳避雨隔热隔音的铺盖层通常采用防腐处理后的木板作为底层承载,但其使用寿命有限,一般经过十五年需要完全更换。
发明内容
针对现有技术的上述问题,本发明提供了一种轻质环保纤维瓦的加工方法,用于解决其环保、抗冲击以及良好消音性能的问题。
为解决上述问题,本发明采用了如下技术方案:
一种轻质环保纤维瓦的加工方法,包括如下步骤:
步骤一:制备植物纤维、胶料以及沥青,所述植物纤维为草浆纤维、阔叶木木浆、针叶木木浆、回收再利用纸浆之一或两种以上的组合物;所述胶料为浓度30%-75%的热固性树脂,热固性树脂为水溶性、醇溶性或油溶性热固性树脂;所述沥青为90#或70#改性沥青;所述植物纤维、热固性树脂以及沥青的重量比为10:(1-5):(1-3);
步骤二:将植物纤维运输至原料储料仓中,实际加工时,原料储料仓中的植物纤维依次通过干燥机、冷却机进入干料储备仓,烘干待用;其中,所述植物纤维经100℃-115℃干燥机干燥,干燥后其含水率小于5%,并粉碎至3-8mm颗粒状或丝状;
步骤三:将胶桶中灌注胶料,胶料通过喷胶装置喷出,从而将植物纤维和胶料置入拌胶机中混合得到混合物,所述拌胶机内设有两个用于施加不同胶料的喷雾系统,通过称重后将所述混合物铺装于热压机中进行热压成型,其成型温度为150℃-220℃,成型压力为10-30MPA,热压时间为3-15min,用以得到轻质环保纤维瓦胚;
步骤四:所述轻质环保纤维瓦胚通过人工打磨后依次浸渍沥青、冷却、喷漆、检验、成品包装以及仓储后发货;其中,浸渍沥青过程为放入170℃-200℃沥青中浸渍20-25min。
进一步地,所述步骤一中,所述胶料为酚醛和改性酚醛树脂胶粘剂、环氧树脂胶粘剂、聚氨酯胶粘剂、脲醛树脂胶粘剂、间苯二酚-甲醛树脂胶粘剂、三聚氰胺-甲醛树脂胶粘剂或上述胶粘剂的任意组合。
进一步地,所述步骤四中,检验要求为:外观无分层、掉渣、鼓泡、裂痕、折痕或边角缺损。
进一步地,所述步骤三中,搅拌机内的混合物在20-80℃内分三次搅拌,其第一次搅拌的转速为280~350r/min,搅拌时间20~60min;第二次搅拌的转速为190~250r/min,搅拌时间80~130min;第三次搅拌的转速为60~120r/min,搅拌时间60~90min。
进一步地,所述步骤四中,所述沥青为先后浸渍的两层,包括第一沥青层和第二沥青层;按重量份数计,所述第一沥青层的原料组分组成为:石油沥青15~40份,石墨烯5~7份,硅藻土8~10份,聚乙二醇2~10份,石粉8~20份,橡胶粉3~4份,沥青改性剂10~25份,减水剂1~5份;按重量份数计,所述第二沥青层的原料组分组成为:石油沥青30~45份、聚烯烃1~4份、SBS热塑性弹性体2~8份、增粘树脂1~2份、粉末丁苯橡胶0.5~6份、增塑剂6~12份、沥青助粘剂2~7份、石墨烯添加剂0.1~1份、胶粉6~15份和填料20~25份。
进一步地,所述步骤四中,SBS热塑性弹性体是苯乙烯与丁二烯的嵌段共聚物,苯乙烯与丁二烯的质量比为20:62。
与现有技术相比,本发明取得了如下技术效果:
第一:本发明属于环境友好型,无污染。其利用木材加工剩余物、废料和低等级木材、回收纸袋来制造。可以实现再循环、再回收、再利用,低污染,回收率可达100%。
第二:本发明隔热隔音轻质寿命长,耐雨水冲刷和紫外线照射,重量轻,强度高,抗冲击,不变形,具有良好的消音性能。
第三:本发明相较传统陶瓦更加轻质环保,且运输成本减少。
附图说明
图1为本发明一种轻质环保纤维瓦的加工方法流程图。
具体实施方式
下面通过具体实施方式来进一步说明本发明的技术方案。
如图1所示,本发明的一种轻质环保纤维瓦的加工方法,具体包括如下步骤:
步骤一:制备植物纤维、胶料以及沥青,所述植物纤维为草浆纤维、阔叶木木浆、针叶木木浆、回收再利用纸浆之一的组合物;所述胶料为浓度50%的环氧树脂胶粘剂和聚氨酯胶粘剂两种;所述沥青为90#改性沥青;所述植物纤维、热固性树脂以及沥青的重量比为10:3:2;
步骤二:将植物纤维运输至原料储料仓中,实际加工时,原料储料仓中的植物纤维依次通过干燥机、冷却机进入干料储备仓,烘干待用;其中,所述植物纤维经110℃干燥机干燥,干燥后其含水率小于5%,并粉碎至3mm颗粒状或丝状;
步骤三:将胶桶中灌注胶料,胶料通过喷胶装置喷出,从而将植物纤维和胶料置入拌胶机中混合得到混合物,所述拌胶机内设有两个用于施加不同胶料的喷雾系统。搅拌机内的混合物在50℃内分三次搅拌,其第一次搅拌的转速为300r/min,搅拌时间60min;第二次搅拌的转速为250r/min,搅拌时间100min;第三次搅拌的转速为100r/min,搅拌时间90min。
通过称重后将所述混合物铺装于热压机中进行热压成型,其成型温度为200℃,成型压力为20MPA,热压时间为10min,用以得到轻质环保纤维瓦胚;
步骤四:所述轻质环保纤维瓦胚通过人工打磨后依次浸渍沥青、冷却、喷漆、检验、成品包装以及仓储后发货;其中,浸渍沥青过程为放入180℃沥青中浸渍25min。检验要求为:外观无分层、掉渣、鼓泡、裂痕、折痕或边角缺损。
本实施例中,所述沥青为先后浸渍的两层,包括第一沥青层和第二沥青层;按重量份数计,所述第一沥青层的原料组分组成为:石油沥青30份,石墨烯6份,硅藻土9份,聚乙二醇8份,石粉10份,橡胶粉4份,沥青改性剂20份,减水剂4份;按重量份数计,所述第二沥青层的原料组分组成为:石油沥青40份、聚烯烃3份、SBS热塑性弹性体6份、增粘树脂2份、粉末丁苯橡胶3份、增塑剂10份、沥青助粘剂5份、石墨烯添加剂1份、胶粉6份和填料20份。SBS热塑性弹性体是苯乙烯与丁二烯的嵌段共聚物,苯乙烯与丁二烯的质量比为20:62。此外,第一沥青层和第二沥青层之间还可以设置无纺布层,增加纤维瓦的强度和韧性。
以上仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范围之内。
Claims (3)
1.一种轻质环保纤维瓦的加工方法,其特征在于,包括如下步骤:
步骤一:制备植物纤维、胶料以及沥青,所述植物纤维为草浆纤维、阔叶木木浆、针叶木木浆、回收再利用纸浆之一或两种以上的组合物;所述胶料为浓度30%-75%的热固性树脂,热固性树脂为水溶性、醇溶性或油溶性热固性树脂;所述沥青为90#或70#改性沥青;所述植物纤维、热固性树脂以及沥青的重量比为10:(1-5):(1-3);所述步骤一中,所述胶料为酚醛和改性酚醛树脂胶粘剂、环氧树脂胶粘剂、聚氨酯胶粘剂、脲醛树脂胶粘剂、间苯二酚-甲醛树脂胶粘剂、三聚氰胺-甲醛树脂胶粘剂或上述胶粘剂的任意组合;
步骤二:将植物纤维运输至原料储料仓中,实际加工时,原料储料仓中的植物纤维依次通过干燥机、冷却机进入干料储备仓,烘干待用;其中,所述植物纤维经100℃-115℃干燥机干燥,干燥后其含水率小于5%,并粉碎至3-8mm颗粒状或丝状;
步骤三:将胶桶中灌注胶料,胶料通过喷胶装置喷出,从而将植物纤维和胶料置入拌胶机中混合得到混合物,所述拌胶机内设有两个用于施加不同胶料的喷雾系统,通过称重后将所述混合物铺装于热压机中进行热压成型,其成型温度为150℃-220℃,成型压力为10-30MPA,热压时间为3-15min,用以得到轻质环保纤维瓦胚;所述步骤三中,搅拌机内的混合物在20-80℃内分三次搅拌,其第一次搅拌的转速为280~350r/min,搅拌时间20~60min;第二次搅拌的转速为190~250r/min,搅拌时间80~130min;第三次搅拌的转速为60~120r/min,搅拌时间60~90min;
步骤四:所述轻质环保纤维瓦胚通过人工打磨后依次浸渍沥青、冷却、喷漆、检验、成品包装以及仓储后发货;其中,浸渍沥青过程为放入170℃-200℃沥青中浸渍20-25min;所述步骤四中,所述沥青为先后浸渍的两层,包括第一沥青层和第二沥青层;按重量份数计,所述第一沥青层的原料组分组成为:石油沥青15~40份,石墨烯5~7份,硅藻土8~10份,聚乙二醇2~10份,石粉8~20份,橡胶粉3~4份,沥青改性剂10~25份,减水剂1~5份;按重量份数计,所述第二沥青层的原料组分组成为:石油沥青30~45份、聚烯烃1~4份、SBS热塑性弹性体2~8份、增粘树脂1~2份、粉末丁苯橡胶0.5~6份、增塑剂6~12份、沥青助粘剂2~7份、石墨烯添加剂0.1~1份、胶粉6~15份和填料20~25份。
2.根据权利要求1所述的一种轻质环保纤维瓦的加工方法,其特征在于,所述步骤四中,检验要求为:外观无分层、掉渣、鼓泡、裂痕、折痕或边角缺损。
3.根据权利要求2所述的一种轻质环保纤维瓦的加工方法,其特征在于,所述步骤四中,SBS热塑性弹性体是苯乙烯与丁二烯的嵌段共聚物,苯乙烯与丁二烯的质量比为20:62。
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