CN107226969A - 一种pvc复合装饰板 - Google Patents
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Abstract
本发明公开了一种pvc复合装饰板,由以下成分制成:pvc树脂颗粒、马来酸酐改性聚甲醛与尼龙66共混物、钠基膨润土、增塑剂、发泡剂、润滑剂、二甲基硅油,本发明制备的pvc复合装饰板以钠基膨润土为填充剂,能够增强装饰板的机械强度,提高装饰板一定的抗压强度。
Description
技术领域
本发明属于装饰材料技术领域,具体涉及一种pvc复合装饰板。
背景技术
随着人们对PVC制品的认可,以及环保意识和保护树木意识的增强,PVC装饰板的市场需求量也越来越大,PVC装饰板具有轻质、隔热、保温、防潮、阻燃、施工简便等特点。规格、色彩、图案繁多,极富装饰性,可应用于居室内墙和吊顶的装饰,是塑料类材料中应用最为广泛的装饰材料之一,随着社会城市化、科技化、人性化的发展,设计一种弯曲强度高,冲击强度高的PVC装饰板以满足市场需求,是非常必要的。。
发明内容
本发明的目的是针对现有的问题,提供了一种pvc复合装饰板。
本发明是通过以下技术方案实现的:
一种pvc复合装饰板,按重量份计由以下成分制成:pvc树脂颗粒120-125、马来酸酐改性聚甲醛与尼龙66共混物12.4-15.6、钠基膨润土5.4-7.6、增塑剂1.2-1.8、发泡剂0.6-0.8、润滑剂0.2-0.5、二甲基硅油1.2-1.6;
所述马来酸酐改性聚甲醛与尼龙66共混物制备方法为:
(1)将聚甲醛、马来酸酐、过氧化苯甲酰按110:4:1的质量比例均匀混合后,在真空中进行干燥2小时,然后添加到挤出机中进行熔融挤出,挤出温度为185℃,真空中干燥温度为72℃,然后进行切粒,得到80目颗粒,即为马来酸酐改性聚甲醛;
(2)将马来酸酐改性聚甲醛与尼龙66按7:4质量比例均匀混合,在真空中进行干燥2.5小时,然后添加到挤出机中,进行一次熔融挤出,再进行切粒,然后再在真空中进行干燥2小时,再添加到挤出机中进行二次熔融挤出,然后切粒,得到80目颗粒,即为马来酸酐改性聚甲醛与尼龙66共混物,一次熔融挤出的温度为175℃、二次熔融挤出的温度为188℃,真空中干燥的温度均为78℃。
进一步的,所述增塑剂为柠檬酸二丁酯。
进一步的,所述发泡剂为偶氮二甲酰胺。
进一步的,所述润滑剂为PE腊。
进一步的,所述pvc复合装饰板的制备方法,包括以下步骤:
(1)混合:按各重量配比将pvc树脂颗粒、马来酸酐改性聚甲醛与尼龙66共混物、钠基膨润土、增塑剂、发泡剂、润滑剂、二甲基硅油混合均匀,得到混合料;
(2)高温搅拌:将上述混合料投入热混料机并将混合料加热至116-118℃,以1500r/min的转速搅拌20min,得到热混物料;
(3)冷却排料:将步骤(2)得到的热混物料投入冷混料机中,以150r/min的转速进行搅拌,同时通入冷却水进行冷却,待冷混料机中的物料冷却至40℃时排放至盛料容器,即得到冷混物料;
(4)熔融塑化:将上述冷混物料投入经过预热的双螺杆挤出机中,经加热使物料熔融塑化,熔融塑化物料经螺杆进入挤出模具;
(5)定型牵引:挤出模具将物料挤出至定型台,经定型台冷却压合定型,并由牵引机迁出切割成型,即得到成品;
(6)入库、回收:将成品中的合格品入库。
本发明相比现有技术具有以下优点:本发明制备的pvc复合装饰板以钠基膨润土为填充剂,能够增强装饰板的机械强度,提高装饰板一定的抗压强度;通过添加二甲基硅油可以在加工过程中抑制聚氯乙烯提前分解,使得复合材料体系拥有足够的稳定性;通过添加增塑剂可以促进塑化,提高熔体强度,防止气泡合并或破裂,保证充足的发泡熔体,增加装饰板的强度;通过添加润滑剂有利于塑化和熔体的流动性,减少熔融物料内摩擦,降低电流,也起到促进塑化作用;通过添加马来酸酐改性聚甲醛与尼龙66共混物,能够显著提高复合装饰板的弯曲强度和冲击强度,与钠基膨润土的协同作用,还能够提高材料氧指数,提高阻燃性。
具体实施方式
实施例1
一种pvc复合装饰板,按重量份计由以下成分制成:pvc树脂颗粒120、马来酸酐改性聚甲醛与尼龙66共混物12.4、钠基膨润土5.4、增塑剂1.2、发泡剂0.6、润滑剂0.2、二甲基硅油1.2;
所述马来酸酐改性聚甲醛与尼龙66共混物制备方法为:
(1)将聚甲醛、马来酸酐、过氧化苯甲酰按110:4:1的质量比例均匀混合后,在真空中进行干燥2小时,然后添加到挤出机中进行熔融挤出,挤出温度为185℃,真空中干燥温度为72℃,然后进行切粒,得到80目颗粒,即为马来酸酐改性聚甲醛;
(2)将马来酸酐改性聚甲醛与尼龙66按7:4质量比例均匀混合,在真空中进行干燥2.5小时,然后添加到挤出机中,进行一次熔融挤出,再进行切粒,然后再在真空中进行干燥2小时,再添加到挤出机中进行二次熔融挤出,然后切粒,得到80目颗粒,即为马来酸酐改性聚甲醛与尼龙66共混物,一次熔融挤出的温度为175℃、二次熔融挤出的温度为188℃,真空中干燥的温度均为78℃。
所述增塑剂为柠檬酸二丁酯。
所述发泡剂为偶氮二甲酰胺。
所述润滑剂为PE腊。
所述pvc复合装饰板的制备方法,包括以下步骤:
(1)混合:按各重量配比将pvc树脂颗粒、马来酸酐改性聚甲醛与尼龙66共混物、钠基膨润土、增塑剂、发泡剂、润滑剂、二甲基硅油混合均匀,得到混合料;
(2)高温搅拌:将上述混合料投入热混料机并将混合料加热至116℃,以1500r/min的转速搅拌20min,得到热混物料;
(3)冷却排料:将步骤(2)得到的热混物料投入冷混料机中,以150r/min的转速进行搅拌,同时通入冷却水进行冷却,待冷混料机中的物料冷却至40℃时排放至盛料容器,即得到冷混物料;
(4)熔融塑化:将上述冷混物料投入经过预热的双螺杆挤出机中,经加热使物料熔融塑化,熔融塑化物料经螺杆进入挤出模具;
(5)定型牵引:挤出模具将物料挤出至定型台,经定型台冷却压合定型,并由牵引机迁出切割成型,即得到成品;
(6)入库、回收:将成品中的合格品入库。
实施例2
一种pvc复合装饰板,按重量份计由以下成分制成:pvc树脂颗粒125、马来酸酐改性聚甲醛与尼龙66共混物15.6、钠基膨润土7.6、增塑剂1.8、发泡剂0.8、润滑剂0.5、二甲基硅油1.6;
所述马来酸酐改性聚甲醛与尼龙66共混物制备方法为:
(1)将聚甲醛、马来酸酐、过氧化苯甲酰按110:4:1的质量比例均匀混合后,在真空中进行干燥2小时,然后添加到挤出机中进行熔融挤出,挤出温度为185℃,真空中干燥温度为72℃,然后进行切粒,得到80目颗粒,即为马来酸酐改性聚甲醛;
(2)将马来酸酐改性聚甲醛与尼龙66按7:4质量比例均匀混合,在真空中进行干燥2.5小时,然后添加到挤出机中,进行一次熔融挤出,再进行切粒,然后再在真空中进行干燥2小时,再添加到挤出机中进行二次熔融挤出,然后切粒,得到80目颗粒,即为马来酸酐改性聚甲醛与尼龙66共混物,一次熔融挤出的温度为175℃、二次熔融挤出的温度为188℃,真空中干燥的温度均为78℃。
所述增塑剂为柠檬酸二丁酯。
所述发泡剂为偶氮二甲酰胺。
所述润滑剂为PE腊。
所述pvc复合装饰板的制备方法,包括以下步骤:
(1)混合:按各重量配比将pvc树脂颗粒、马来酸酐改性聚甲醛与尼龙66共混物、钠基膨润土、增塑剂、发泡剂、润滑剂、二甲基硅油混合均匀,得到混合料;
(2)高温搅拌:将上述混合料投入热混料机并将混合料加热至118℃,以1500r/min的转速搅拌20min,得到热混物料;
(3)冷却排料:将步骤(2)得到的热混物料投入冷混料机中,以150r/min的转速进行搅拌,同时通入冷却水进行冷却,待冷混料机中的物料冷却至40℃时排放至盛料容器,即得到冷混物料;
(4)熔融塑化:将上述冷混物料投入经过预热的双螺杆挤出机中,经加热使物料熔融塑化,熔融塑化物料经螺杆进入挤出模具;
(5)定型牵引:挤出模具将物料挤出至定型台,经定型台冷却压合定型,并由牵引机迁出切割成型,即得到成品;
(6)入库、回收:将成品中的合格品入库。
实施例3
一种pvc复合装饰板,按重量份计由以下成分制成:pvc树脂颗粒122、马来酸酐改性聚甲醛与尼龙66共混物13.6、钠基膨润土6.0、增塑剂1.5、发泡剂0.7、润滑剂0.3、二甲基硅油1.3;
所述马来酸酐改性聚甲醛与尼龙66共混物制备方法为:
(1)将聚甲醛、马来酸酐、过氧化苯甲酰按110:4:1的质量比例均匀混合后,在真空中进行干燥2小时,然后添加到挤出机中进行熔融挤出,挤出温度为185℃,真空中干燥温度为72℃,然后进行切粒,得到80目颗粒,即为马来酸酐改性聚甲醛;
(2)将马来酸酐改性聚甲醛与尼龙66按7:4质量比例均匀混合,在真空中进行干燥2.5小时,然后添加到挤出机中,进行一次熔融挤出,再进行切粒,然后再在真空中进行干燥2小时,再添加到挤出机中进行二次熔融挤出,然后切粒,得到80目颗粒,即为马来酸酐改性聚甲醛与尼龙66共混物,一次熔融挤出的温度为175℃、二次熔融挤出的温度为188℃,真空中干燥的温度均为78℃。
所述增塑剂为柠檬酸二丁酯。
所述发泡剂为偶氮二甲酰胺。
所述润滑剂为PE腊。
所述pvc复合装饰板的制备方法,包括以下步骤:
(1)混合:按各重量配比将pvc树脂颗粒、马来酸酐改性聚甲醛与尼龙66共混物、钠基膨润土、增塑剂、发泡剂、润滑剂、二甲基硅油混合均匀,得到混合料;
(2)高温搅拌:将上述混合料投入热混料机并将混合料加热至117℃,以1500r/min的转速搅拌20min,得到热混物料;
(3)冷却排料:将步骤(2)得到的热混物料投入冷混料机中,以150r/min的转速进行搅拌,同时通入冷却水进行冷却,待冷混料机中的物料冷却至40℃时排放至盛料容器,即得到冷混物料;
(4)熔融塑化:将上述冷混物料投入经过预热的双螺杆挤出机中,经加热使物料熔融塑化,熔融塑化物料经螺杆进入挤出模具;
(5)定型牵引:挤出模具将物料挤出至定型台,经定型台冷却压合定型,并由牵引机迁出切割成型,即得到成品;
(6)入库、回收:将成品中的合格品入库。
表1为马来酸酐改性聚甲醛与尼龙66共混物添加量与pvc复合装饰板强度的关系,测定其弯曲强度和抗冲击强度,以实施例1方法制备pvc复合装饰板,以马来酸酐改性聚甲醛与尼龙66共混物添加量为变量,规格为长150mm、宽45mm、厚度5mm,按GB/T17657-1999(人造板及饰面人造板理化性能试验方法)进行测试:
表1
由表1可以看出,马来酸酐改性聚甲醛与尼龙66共混物添加量自12.4重量份开始增加时,弯曲强度逐渐一直在降低,而抗冲击强度先增加,后降低;,试验以实施例2、3分别进行试验时,与实施例试验结果相差1.0-2.5MPa,并且以实施例2、3试验结果规律同样是马来酸酐改性聚甲醛与尼龙66共混物添加量自12.4重量份开始增加时,弯曲强度逐渐一直在降低,而抗冲击强度先增加,后降低;
本试验还将12.4重量份的聚甲醛与尼龙66共混物采用实施例1方法制备同规格的复合装饰板,测得弯曲强度52.4MPa,抗冲击强度368.1MPa,与本发明复合装饰板性能相差较大。
氧指数测定.所谓氧指数,是指在规定的实验条件下,使材料恰好保持燃烧状态所需氧氮混合气体中氧的最低浓度,用LOI(LimitedOxygenIndex)表示.按照国家标准GB5454—85,用HC-1型氧指数测定仪测定样品的氧指数,对本发明实施例1、2、3分别测定氧指数均为32,而采用聚甲醛与尼龙66共混物制成的复合装饰板测定氧指数为28,可见,采用马来酸酐改性聚甲醛与尼龙66共混物能够提高材料氧指数。
Claims (5)
1.一种pvc复合装饰板,其特征在于,按重量份计由以下成分制成:pvc树脂颗粒120-125、马来酸酐改性聚甲醛与尼龙66共混物12.4-15.6、钠基膨润土5.4-7.6、增塑剂1.2-1.8、发泡剂0.6-0.8、润滑剂0.2-0.5、二甲基硅油1.2-1.6;
所述马来酸酐改性聚甲醛与尼龙66共混物制备方法为:
(1)将聚甲醛、马来酸酐、过氧化苯甲酰按110:4:1的质量比例均匀混合后,在真空中进行干燥2小时,然后添加到挤出机中进行熔融挤出,挤出温度为185℃,真空中干燥温度为72℃,然后进行切粒,得到80目颗粒,即为马来酸酐改性聚甲醛;
(2)将马来酸酐改性聚甲醛与尼龙66按7:4质量比例均匀混合,在真空中进行干燥2.5小时,然后添加到挤出机中,进行一次熔融挤出,再进行切粒,然后再在真空中进行干燥2小时,再添加到挤出机中进行二次熔融挤出,然后切粒,得到80目颗粒,即为马来酸酐改性聚甲醛与尼龙66共混物,一次熔融挤出的温度为175℃、二次熔融挤出的温度为188℃,真空中干燥的温度均为78℃。
2.如权利要求1所述一种pvc复合装饰板,其特征在于,所述增塑剂为柠檬酸二丁酯。
3.如权利要求1所述一种pvc复合装饰板,其特征在于,所述发泡剂为偶氮二甲酰胺。
4.如权利要求1所述一种pvc复合装饰板,其特征在于,所述润滑剂为PE腊。
5.如权利要求1所述一种pvc复合装饰板,其特征在于,所述pvc复合装饰板的制备方法,包括以下步骤:
(1)混合:按各重量配比将pvc树脂颗粒、马来酸酐改性聚甲醛与尼龙66共混物、钠基膨润土、增塑剂、发泡剂、润滑剂、二甲基硅油混合均匀,得到混合料;
(2)高温搅拌:将上述混合料投入热混料机并将混合料加热至116-118℃,以1500r/min的转速搅拌20min,得到热混物料;
(3)冷却排料:将步骤(2)得到的热混物料投入冷混料机中,以150r/min的转速进行搅拌,同时通入冷却水进行冷却,待冷混料机中的物料冷却至40℃时排放至盛料容器,即得到冷混物料;
(4)熔融塑化:将上述冷混物料投入经过预热的双螺杆挤出机中,经加热使物料熔融塑化,熔融塑化物料经螺杆进入挤出模具;
(5)定型牵引:挤出模具将物料挤出至定型台,经定型台冷却压合定型,并由牵引机迁出切割成型,即得到成品;
(6)入库、回收:将成品中的合格品入库。
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