CN111664300A - 一种双色双壁波纹管及其制备方法 - Google Patents
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Abstract
本申请涉及波纹管材技术领域,具体而言,涉及一种双色双壁波纹管及其制备方法,包括内层和外层,按重量份数计,所述外层包括以下原料:PVC树脂100份;钙锌稳定剂3‑8份;纳米材料0.5‑20份;抗冲材料0.5‑15份;润滑剂0.1‑2.0份;钛白粉0.‑8份;聚甲基丙烯酸甲酯(PMMA)5‑100份,聚乙烯5‑100份,增熔剂1‑15份;所述内层包括以下原料:PVC树脂0‑100份;钙锌稳定剂3‑8份;自润滑材0.5‑50份;纳米材料0.5‑20份;抗冲材料0.5‑15份;润滑剂0.1‑2.0份;抗菌材料0.1‑15份;ABS 5‑100份。在本发明中,外层采用是PVC、PMMA、聚乙烯三种高分子改性增强,提高光洁度和生产效率,提高管材强度;内层采用是PVC和ABS改性增强,提高耐磨性能和刚度。
Description
技术领域
本申请涉及波纹管材技术领域,具体而言,涉及一种双色双壁波纹管及其制备方法。
背景技术
市政排水排污工程越来越多,对于全塑料的排水排污管材,首推波纹管结构性价比最高,而波纹管主要为PVC双壁波纹管、PE双壁波纹管、PP-UH 双壁波纹管。对PVC双壁波纹管主要单机挤出内层和外层,存在生产效率低,内层和外层壁厚无法单独调整,不能分开用挤出机生产控制内层和外层,只能整体调整波纹管的厚度,要么整体壁厚厚,要么整体壁厚薄。需要调整内外层壁厚是,需要拆开模具调整内外流道的间隙,或者是通过内层和外层温度控制,调整内层和外层壁厚,但始调整过程麻烦、不易操作。而PE和PP-UH双壁波纹管虽然是双机共挤出,可以做成双色,也可以将外层和内层采用分开的主机调整速度,方便控制内层和外层壁厚,但PE和 PP-UH双壁波纹管的模具内芯采用螺旋结构,帮助塑化和压缩,对PVC和 PVC-M及聚乙烯-聚氯乙烯共混管材,无法生产,主要原因是该材料加工窗口小,很容易分解,生产废品多,质量难稳定。
发明内容
本发明的目的在于提供一种双色双壁波纹管,外层采用是PVC、PMMA、聚乙烯三种高分子改性增强,提高光洁度和生产效率,提高管材强度;内层采用是PVC和ABS改性增强,提高耐磨性能和刚度。
本发明提供了一种双色双壁波纹管,包括内层和外层,按重量份数计,所述外层包括以下原料:
PVC树脂100份;钙锌稳定剂3-8份;纳米材料0.5-20份;抗冲材料 0.5-15份;润滑剂0.1-2.0份;钛白粉0.-8份;聚甲基丙烯酸甲酯(PMMA) 5-100份,聚乙烯5-100份,增熔剂1-15份;
所述内层包括以下原料:
PVC树脂0-100份;钙锌稳定剂3-8份;自润滑材0.5-50份;纳米材料0.5-20份;抗冲材料0.5-15份;润滑剂0.1-2.0份;抗菌材料0.1-15 份;ABS 5-100份。
进一步地,所述增熔剂为马来酸肝接枝共聚物、氯化聚乙烯、乙烯-醋酸乙烯共聚物中的一种或多种的混合。
进一步地,所述自润滑材料为聚四氟乙烯粉料、硅酮粉料中一种或多种的混合物。
进一步地,所述抗冲材料为氯化聚乙烯、ACA、MBS、丁腈橡胶中一种或多种的混合物。
进一步地,所述润滑剂为硬脂酸、氧化聚乙烯蜡、聚乙烯蜡中一种或多种的混合物。
进一步地,所述纳米材料为:碳酸钙、钛白粉、二氧化硅、云母、蒙脱土、石英砂中一种或多种的混合物。
进一步地,抗菌材料为银系抗菌剂、氧化锌、氧化铜、磷酸二氢铵、碳酸锂、香草醛、乙基香草醛及其衍生物、酰基苯胺及其衍生物、咪唑及其衍生物、季铵盐化合物、苯酚及其衍生物一种或多种的混合物
本发明还提供一种双色双壁波纹管的制备方法,在成型时,内层为一主机单独控制,外层为一主机单独控制,提高生产效率,还可以通过单机调数,单独控制内外层壁厚,减少废品,提高成品率,内层增加自润滑材料,抗菌材料,耐磨材料,防止结垢,减少流水阻力,延长使用寿命,满足落差大,含沙量高的苛刻环境条件使用。
一种双色双壁波纹管的制备方法,包括以下步骤,
S1:将各原料在110℃下搅拌均匀,并冷却至30℃;
S2:将外层原料投入至外层挤出机料斗中,并设定外层挤出机螺杆温度为1区195-235℃,2区185℃,3区170℃,4区165℃,合流芯170℃,模具1-3区185℃,4-5区及内层180℃,6-7区及内层180℃,口模 195-235℃,主机螺杆转速15转/分钟,牵引机速度0.5米/分钟;
物料经共挤模具的外层流道挤出,形成外层;
S3:将内层原料投入到内层挤出机料斗中,并设定内层挤出机螺杆温度为1区160-225℃,2区160-215℃,3区—4区165-235℃,合流芯 165-190℃,口模195-235℃,主机螺杆转速12转/分钟;物料经共挤模具的内层流道挤出,形成内层;
S4:所述外层和所述内层在共挤模具的口模的出料口复合,经过波纹成型模块,在所述外层形成波纹,得到所述双色双壁波纹管材。
与现有技术相比,本发明具有以下有益效果:
在本发明中,外层采用是PVC、PMMA、聚乙烯三种高分子改性增强,提高光洁度和生产效率,提高管材强度;内层采用是PVC和ABS改性增强,提高耐磨性能和刚度。
在成型时,内层为一主机单独控制,外层为一主机单独控制,提高生产效率,还可以通过单机调数,单独控制内外层壁厚,减少废品,提高成品率,内层增加自润滑材料,抗菌材料,耐磨材料,防止结垢,减少流水阻力,延长使用寿命,满足落差大,含沙量高的苛刻环境条件使用。
附图说明
为了更清楚地说明本发明的技术方案,下面将对本发明中所需要使用的附图作简单地介绍,应当理解,以下附图仅示出了本申请的某些实施例,因此不应被看作是对范围的限定,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他相关的附图。
图1为共挤模具的剖视示意图;
图标:1-共挤头,2-前模具体,3-后模具体,4-口模,5-内层流道, 6-外层流道,7-调偏心支架。
具体实施方式
下面将结合本发明中的附图,对本发明中的技术方案进行描述。
实施例1:
以下述配方,分别将外层原料和内层原料加入到搅拌机中,在110℃下,搅拌10分钟,随后将原料冷却至30℃;
外层原料:PVC树脂100份;聚甲基丙烯酸甲酯(PMMA)50份;聚乙烯18份,乙烯-醋酸乙烯共聚物5份,钙锌稳定剂4.0份;纳米二氧化硅5.0份;氯化聚乙烯2.0份;聚乙烯蜡0.6份;钛白粉2.0份;
内层原料:PVC树脂100份;稳定剂3.0份;聚四氟乙烯粉料15份;纳米碳酸钙15份;抗冲材料0.5-15份;硬脂酸0.6份;氧化锌5份;氧化铜5份;磷酸二氢铵3.0份ABS 50份;
将上述混合后的外层原料加入到外层挤出机的料斗中,挤出成型,其中,外层管材挤出机螺杆温度设定为1区195℃,2区185℃,3区170℃, 4区165℃,合流芯170℃,模具1-3区185℃,4-5区180℃,6-7区及内层180℃,口模195℃,主机螺杆转速25转/分钟,牵引机速度0.65米/分钟,外气压力0.032MPa;
同样的,将内层原料加入到内层挤出机的料斗中,通过共挤模具,在口模的出料口处复合,再通过波纹成型模块,在外层形成波纹,得到双壁波纹管,其中,内层挤出机中,挤出机螺杆温度设定为1区165℃,2区185℃,3-4区200℃,合流芯190℃,口模195℃,主机螺杆转速24转/分钟。
由本实施例制备得到的管材,管材规格dn630mm,环刚度SN26.2。
实施例2:
以下述配方,分别将外层原料和内层原料加入到搅拌机中,在100℃下,搅拌8分钟,随后将原料冷却至28℃;
外层原料:PVC树脂100份;聚甲基丙烯酸甲酯(PMMA)60份,聚乙烯22份,乙烯-醋酸乙烯共聚物7份,钙锌稳定剂4.0份;纳米碳酸钙 5.0份;抗冲改性剂ACR 2.0份;氧化聚乙烯蜡0.6份;钛白粉2.0份,马来酸肝接枝共聚物3份;
内层原料:PVC树脂70份,钙锌稳定剂3.0份;硅酮粉料15份;纳米碳酸钙15份;氯化聚乙烯0.5-15份;硬脂酸0.6份;银离子10份;ABS 30份。
将上述混合后的外层原料加入到外层挤出机的料斗中,挤出成型,其中,外层管材挤出机螺杆温度设定为1区195℃,2区185℃,3区170℃, 4区165℃,合流芯170℃,模具1-3区185℃,4-5区180℃,6-7区及内层180℃,口模195℃,主机螺杆转速32转/分钟,牵引机速度0.65米/分钟,外气压力0.03MPa;
同样的,将内层原料加入到内层挤出机的料斗中,通过共挤模具,在口模的出料口处复合,再通过波纹成型模块,在外层形成波纹,得到双壁波纹管,其中,内层挤出机中,挤出机螺杆温度设定为1区225℃,2区 185℃,3-4区200℃,合流芯180℃,口模195℃,主机螺杆转速26转/分钟。
由本实施例制备得到的管材,管材规格dn800mm,环刚度SN25.8。
实施例3:
以下述配方,分别将外层原料和内层原料加入到搅拌机中,在100℃下,搅拌8分钟,随后将原料冷却至28℃;
外层原料:PVC树脂100份;聚甲基丙烯酸甲酯(PMMA)70份,聚乙烯25份,乙烯-醋酸乙烯共聚物10份,马来酸肝接枝共聚物3份,钙锌稳定剂4.0份;纳米云母5.0份;抗冲改性剂ACR 2.0份;聚乙烯蜡0.6 份;硬脂酸0.3份;钛白粉2份;
内层原料:PVC树脂100.0份;稳定剂5.0份;聚四氟乙烯粉料15 份;纳米碳酸钙15份;MBS 1.5份;硬脂酸0.6份;碳酸锂15份;ABS 100份;
将上述混合后的外层原料加入到外层挤出机的料斗中,挤出成型,其中,外层管材挤出机螺杆温度设定为1区195℃,2区185℃,3区170℃, 4区165℃,合流芯170℃,模具1-3区185℃,4-5区180℃,6-7区及内层180℃,口模200℃,主机螺杆转速35转/分钟,牵引机速度0.62米/分钟,外压0.035MPa;
同样的,将内层原料加入到内层挤出机的料斗中,通过共挤模具,在口模的出料口处复合,再通过波纹成型模块,在外层形成波纹,得到双壁波纹管,其中,内层挤出机中,挤出机螺杆温度设定为1区165℃,2区 185℃,3-4区200℃,合流芯165℃,口模235℃,主机螺杆转速30转/分钟。
由本实施例制备得到的管材,管材规格dn900mm,环刚度SN25.3。
在上述实施例1-3中,均采用共挤模具挤出成型,其中,该模具具有内层流道5和外层流道6,所述模具包括依次连接的共挤头1、前模具体2、后模具体3和口模4,内层流道5和所述外层流道6的进料口均位于所述共挤头1,具体的,如附图1所示,所述内层流道5的进料口位于所述共挤头 1的端面,所述外层流道6的进料口位于所述共挤头1的侧壁,即,内层物料从中心进料,外层物料从侧方进料。所述内层流道5的进料口与第一共挤机的挤出头连接,所述外层流道6的进料口与第二共挤机的挤出头连接,第一共挤机与第二共挤机相对独立,第一共挤机挤出的物料从内层流道5 流出,第二共挤机挤出的物料从外层流道6流出,所述外层流道6的出料口位于所述口模4侧壁,所述内层流道5的出料口位于所述口模4的端面。内层流道5和外层流道6的物料从口模4挤出后,为分离的内外层,便于后续工序为外层进行波纹成型。
实验例:
对实施例1-3制备的波纹管,测试波纹管材的环刚度、环柔性、内壁耐磨厚度,落锤冲击性能,以及实施例1-3的管材生产时的生产效率,器结果如下表所示
实施例1-3优势:
表1实施例1-3的管材性能
从上表中可以看出,实施1-3制备的管材,其环刚度、环柔性、以及内壁的耐磨性均优于传统的波纹管材,并且,实施例1-3的管材的生产效率也有所提高。
实施例1-3的波纹管材,外层通过PVC、PMMA、聚乙烯三种高分子改性增强,提高外层的光洁度和生产效率,提高管材强度;内层通过PVC和ABS 改性增强,提高耐磨性能和刚度。并且,在制备实施例1-3的波纹管材时,通过该共挤模具,内层和外层的挤出机相互独立,内层为一主机单独控制,外层为一主机单独控制,可单独的控制内层和外层的挤出机,不仅生产效率高,还可以通过单机调数,控制壁厚,减少废品,提高成品率,内层增加自润滑材料,抗菌材料,耐磨材料,防止结垢,减少流水阻力,延长使用寿命,满足落差大,含沙量高的苛刻环境条件使用。
以上所述,仅为本申请的具体实施方式,但本申请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申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。
Claims (8)
1.一种双色双壁波纹管,其特征在于,包括内层和外层,按重量份数计,所述外层包括以下原料:
PVC树脂100份;钙锌稳定剂3-8份;纳米材料0.5-20份;抗冲材料0.5-15份;润滑剂0.1-2.0份;钛白粉0.-8份;聚甲基丙烯酸甲酯5-100份,聚乙烯5-100份,增熔剂1-15份;
所述内层包括以下原料:
PVC树脂0-100份;钙锌稳定剂3-8份;自润滑材0.5-50份;纳米材料0.5-20份;抗冲材料0.5-15份;润滑剂0.1-2.0份;抗菌材料0.1-15份;ABS 5-100份。
2.根据权利要求1所述的双色双壁波纹管,其特征在于,所述增熔剂为马来酸肝接枝共聚物、氯化聚乙烯、乙烯-醋酸乙烯共聚物中的一种或多种的混合。
3.根据权利要求1所述的双色双壁波纹管,其特征在于,所述自润滑材料为聚四氟乙烯粉料、硅酮粉料中一种或多种的混合物。
4.根据权利要求1所述的双色双壁波纹管,其特征在于,所述抗冲材料为氯化聚乙烯、ACA、MBS、丁腈橡胶中一种或多种的混合物。
5.根据权利要求1所述的双色双壁波纹管,其特征在于,所述润滑剂为硬脂酸、氧化聚乙烯蜡、聚乙烯蜡中一种或多种的混合物。
6.根据权利要求1所述的双色双壁波纹管,其特征在于,所述纳米材料为:碳酸钙、钛白粉、二氧化硅、云母、蒙脱土、石英砂中一种或多种的混合物。
7.根据权利要求1所述的双色双壁波纹管,其特征在于,抗菌材料为银系抗菌剂、氧化锌、氧化铜、磷酸二氢铵、碳酸锂、香草醛、乙基香草醛及其衍生物、酰基苯胺及其衍生物、咪唑及其衍生物、季铵盐化合物、苯酚及其衍生物一种或多种的混合物。
8.一种如权利要求1-7任一所述的双色双壁波纹管的制备方法,其特征在于,包括以下步骤,
S1:将各原料在110℃下搅拌均匀,并冷却至30℃;
S2:将外层原料投入至外层挤出机料斗中,并设定外层挤出机螺杆温度为1区195-235℃,2区185℃,3区170℃,4区165℃,合流芯170℃,模具1-3区185℃,4-5区及内层180℃,6-7区及内层180℃,口模195-235℃,主机螺杆转速15转/分钟,牵引机速度0.5米/分钟;
物料经共挤模具的外层流道挤出,形成外层;
S3:将内层原料投入到内层挤出机料斗中,并设定内层挤出机螺杆温度为1区160-225℃,2区160-215℃,3区—4区165-235℃,合流芯165-190℃,口模195-235℃,主机螺杆转速12转/分钟;物料经共挤模具的内层流道挤出,形成内层;
S4:所述外层和所述内层在共挤模具的口模的出料口复合,经过波纹成型模块,在所述外层形成波纹,得到所述双色双壁波纹管材。
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