CN112538202A - 一种给水用聚乙烯管材及其挤出成型方法 - Google Patents
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Abstract
本发明公开了一种给水用聚乙烯管材,该管材的配方包括以下组份:聚乙烯30‑36%、聚烯烃10‑14%、CPVC树脂8‑12%、聚氯乙烯树脂8‑10%、炭黑母粒5‑9%、抗氧化剂3‑6%,其余为铁氟龙;本发明还公开了一种给水用聚乙烯管材的挤出成型方法,该制备方法包括以下步骤:定量称取,抽真空,物料混合,挤出成型,冷却,切缝,清洗,布置防滑耐磨组件;本发明的有益效果是:本发明提出的给水用聚乙烯管材在外环面开设梯形缝,相邻梯形缝之间构成加强筋,提成管材的抗弯性能,其而在梯形缝表面加设橡胶条,橡胶条提升管材的防滑性能。
Description
技术领域
本发明涉及管材制备技术领域,具体为一种给水用聚乙烯管材及其挤出成型方法。
背景技术
国际上,聚乙烯管作为压力管道已使用了50年。众多国家已在输水、输送燃气的管道中得到应用。在我国,自从国家质量技术监督局2000年11月21日发布,《给水用聚乙烯(PE)管材》国家标准(GB/T13663-2000)以后,推动了国内聚乙烯给水管材的生产与应用。但是,现有的给水用聚乙烯管,黑色母粒的粒径大,分散性差,管材表面光滑度差,存在于管壁内的未分散炭黑附聚体可能导致压力管道出现过早破裂现象;为此,本发明提出一种给水用聚乙烯管材及其挤出成型方法。
发明内容
本发明的目的在于提供一种给水用聚乙烯管材及其挤出成型方法,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:一种给水用聚乙烯管材,该管材的配方包括以下组份:聚乙烯30-36%、聚烯烃10-14%、CPVC树脂8-12%、聚氯乙烯树脂8-10%、炭黑母粒5-9%、抗氧化剂3-6%,其余为铁氟龙。
优选的,包括聚乙烯30%、聚烯烃14%、CPVC树脂8%、聚氯乙烯树脂10%、炭黑母粒5%、抗氧化剂6%,其余为铁氟龙。
优选的,包括聚乙烯36%、聚烯烃14%、CPVC树脂8%、聚氯乙烯树脂10%、炭黑母粒5%、抗氧化剂6%,其余为铁氟龙。
优选的,包括聚乙烯32%、聚烯烃12%、CPVC树脂9%、聚氯乙烯树脂9%、炭黑母粒6%、抗氧化剂4%,其余为铁氟龙。
优选的,包括聚乙烯34%、聚烯烃13%、CPVC树脂11%、聚氯乙烯树脂9%、炭黑母粒8%、抗氧化剂5%,其余为铁氟龙。
一种如上所述的一种给水用聚乙烯管材的挤出成型方法,该制备方法包括以下步骤:
步骤一:定量称取,将所有的原料按照上述的组份进行称取;
步骤二:抽真空,将聚乙烯、聚烯烃、CPVC树脂、聚氯乙烯树脂、炭黑母粒以及抗氧化剂进行抽真空处理,抽真空处理后将物料放入烘干箱干燥2-4min,使物料中的水分含量在0.4%以下;
步骤三:物料混合,在低转速下将聚乙烯、聚烯烃加到混合锅中,启动高速混料,在70℃将CPVC树脂与聚氯乙烯树脂加到混合锅中,在80℃加入炭黑母粒,在110℃加入抗氧化剂;
步骤四:挤出成型,利用锥形双螺杆挤出机挤出成管材,机筒温度控制在140-150℃,模具温度控制200-210℃,口模温度控制在160-190℃之间,挤出后经真空定径冷却,即得低温高强度给水用聚乙烯管材;
步骤五:冷却,对挤出的管材用水进行冷却变硬而定型,并在冷却的同时连续均匀地将产品引出,所述冷却温度为10-30℃;
步骤六:切缝,在步骤五制得的管材外环面切割多条梯形缝,相邻梯形缝之间构成加强筋,加强筋提升管材的抗弯性能;
步骤七:清洗,对步骤六处理后的管材清洗,将切割碎屑以及粉尘清除后,将管材放置在干燥箱烘干;
步骤八:布置防滑耐磨组件,在步骤六的梯形缝的侧壁粘接橡胶条,橡胶条避免管材在光滑的表面滚动,并在管材的内壁涂刷热熔后的铁氟龙,自然冷却后,铁氟龙在管材内壁构成耐磨的防粘涂层,且在防粘涂层开设微孔,如此制得给水用聚乙烯管材。
与现有技术相比,本发明的有益效果是:
1.本发明提出的给水用聚乙烯管材在外环面开设梯形缝,相邻梯形缝之间构成加强筋,提成管材的抗弯性能,其而在梯形缝表面加设橡胶条,橡胶条提升管材的防滑性能。
2.本发明提出的给水用聚乙烯管材在内壁涂刷铁氟龙涂层,如此提升管材内壁的耐磨性能,且在铁氟龙涂层表面开设微孔,使得输送水与炭黑母粒接触;
3.本发明提出的给水用聚乙烯管材的挤出成型方法施工简单便捷,对工人技术要求低,采用本方法生产出高质量聚乙烯管材。
附图说明
图1为本发明聚乙烯管结构示意图。
图中:管体1、梯形缝2、橡胶条3、铁氟龙涂层4、微孔5。
具体实施方式
下面将对本发明实施例中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。
实施例一
本发明提供一种技术方案:一种给水用聚乙烯管材,该管材的配方包括以下组份:聚乙烯30%、聚烯烃14%、CPVC树脂8%、聚氯乙烯树脂10%、炭黑母粒5%、抗氧化剂6%,其余为铁氟龙。
一种如上所述的一种给水用聚乙烯管材的挤出成型方法,该制备方法包括以下步骤:
步骤一:定量称取,将所有的原料按照上述的组份进行称取;
步骤二:抽真空,将聚乙烯、聚烯烃、CPVC树脂、聚氯乙烯树脂、炭黑母粒以及抗氧化剂进行抽真空处理,抽真空处理后将物料放入烘干箱干燥2min,使物料中的水分含量在0.4%以下;
步骤三:物料混合,在低转速下将聚乙烯、聚烯烃加到混合锅中,启动高速混料,在70℃将CPVC树脂与聚氯乙烯树脂加到混合锅中,在80℃加入炭黑母粒,在110℃加入抗氧化剂;
步骤四:挤出成型,利用锥形双螺杆挤出机挤出成管材,机筒温度控制在140℃,模具温度控制200℃,口模温度控制在160℃之间,挤出后经真空定径冷却,即得低温高强度给水用聚乙烯管材;
步骤五:冷却,对挤出的管材用水进行冷却变硬而定型,并在冷却的同时连续均匀地将产品引出,所述冷却温度为10℃;
步骤六:切缝,在步骤五制得的管材外环面切割多条梯形缝,相邻梯形缝之间构成加强筋,加强筋提升管材的抗弯性能;
步骤七:清洗,对步骤六处理后的管材清洗,将切割碎屑以及粉尘清除后,将管材放置在干燥箱烘干;
步骤八:布置防滑耐磨组件,在步骤六的梯形缝的侧壁粘接橡胶条,橡胶条避免管材在光滑的表面滚动,并在管材的内壁涂刷热熔后的铁氟龙,自然冷却后,铁氟龙在管材内壁构成耐磨的防粘涂层,且在防粘涂层开设微孔,如此制得给水用聚乙烯管材。
实施例二
本发明提供一种技术方案:一种给水用聚乙烯管材,该管材的配方包括以下组份:聚乙烯36%、聚烯烃14%、CPVC树脂8%、聚氯乙烯树脂10%、炭黑母粒5%、抗氧化剂6%,其余为铁氟龙。
一种如上所述的一种给水用聚乙烯管材的挤出成型方法,该制备方法包括以下步骤:
步骤一:定量称取,将所有的原料按照上述的组份进行称取;
步骤二:抽真空,将聚乙烯、聚烯烃、CPVC树脂、聚氯乙烯树脂、炭黑母粒以及抗氧化剂进行抽真空处理,抽真空处理后将物料放入烘干箱干燥4min,使物料中的水分含量在0.4%以下;
步骤三:物料混合,在低转速下将聚乙烯、聚烯烃加到混合锅中,启动高速混料,在70℃将CPVC树脂与聚氯乙烯树脂加到混合锅中,在80℃加入炭黑母粒,在110℃加入抗氧化剂;
步骤四:挤出成型,利用锥形双螺杆挤出机挤出成管材,机筒温度控制在150℃,模具温度控制210℃,口模温度控制在190℃之间,挤出后经真空定径冷却,即得低温高强度给水用聚乙烯管材;
步骤五:冷却,对挤出的管材用水进行冷却变硬而定型,并在冷却的同时连续均匀地将产品引出,所述冷却温度为30℃;
步骤六:切缝,在步骤五制得的管材外环面切割多条梯形缝,相邻梯形缝之间构成加强筋,加强筋提升管材的抗弯性能;
步骤七:清洗,对步骤六处理后的管材清洗,将切割碎屑以及粉尘清除后,将管材放置在干燥箱烘干;
步骤八:布置防滑耐磨组件,在步骤六的梯形缝的侧壁粘接橡胶条,橡胶条避免管材在光滑的表面滚动,并在管材的内壁涂刷热熔后的铁氟龙,自然冷却后,铁氟龙在管材内壁构成耐磨的防粘涂层,且在防粘涂层开设微孔,如此制得给水用聚乙烯管材。
实施例三
本发明提供一种技术方案:一种给水用聚乙烯管材,该管材的配方包括以下组份:聚乙烯32%、聚烯烃12%、CPVC树脂9%、聚氯乙烯树脂9%、炭黑母粒6%、抗氧化剂4%,其余为铁氟龙。
一种如上所述的一种给水用聚乙烯管材的挤出成型方法,该制备方法包括以下步骤:
步骤一:定量称取,将所有的原料按照上述的组份进行称取;
步骤二:抽真空,将聚乙烯、聚烯烃、CPVC树脂、聚氯乙烯树脂、炭黑母粒以及抗氧化剂进行抽真空处理,抽真空处理后将物料放入烘干箱干燥3min,使物料中的水分含量在0.4%以下;
步骤三:物料混合,在低转速下将聚乙烯、聚烯烃加到混合锅中,启动高速混料,在70℃将CPVC树脂与聚氯乙烯树脂加到混合锅中,在80℃加入炭黑母粒,在110℃加入抗氧化剂;
步骤四:挤出成型,利用锥形双螺杆挤出机挤出成管材,机筒温度控制在144℃,模具温度控制204℃,口模温度控制在170℃之间,挤出后经真空定径冷却,即得低温高强度给水用聚乙烯管材;
步骤五:冷却,对挤出的管材用水进行冷却变硬而定型,并在冷却的同时连续均匀地将产品引出,所述冷却温度为15℃;
步骤六:切缝,在步骤五制得的管材外环面切割多条梯形缝,相邻梯形缝之间构成加强筋,加强筋提升管材的抗弯性能;
步骤七:清洗,对步骤六处理后的管材清洗,将切割碎屑以及粉尘清除后,将管材放置在干燥箱烘干;
步骤八:布置防滑耐磨组件,在步骤六的梯形缝的侧壁粘接橡胶条,橡胶条避免管材在光滑的表面滚动,并在管材的内壁涂刷热熔后的铁氟龙,自然冷却后,铁氟龙在管材内壁构成耐磨的防粘涂层,且在防粘涂层开设微孔,如此制得给水用聚乙烯管材。
实施例四
本发明提供一种技术方案:一种给水用聚乙烯管材,该管材的配方包括以下组份:聚乙烯34%、聚烯烃13%、CPVC树脂11%、聚氯乙烯树脂9%、炭黑母粒8%、抗氧化剂5%,其余为铁氟龙。
一种如上所述的一种给水用聚乙烯管材的挤出成型方法,该制备方法包括以下步骤:
步骤一:定量称取,将所有的原料按照上述的组份进行称取;
步骤二:抽真空,将聚乙烯、聚烯烃、CPVC树脂、聚氯乙烯树脂、炭黑母粒以及抗氧化剂进行抽真空处理,抽真空处理后将物料放入烘干箱干燥3min,使物料中的水分含量在0.4%以下;
步骤三:物料混合,在低转速下将聚乙烯、聚烯烃加到混合锅中,启动高速混料,在70℃将CPVC树脂与聚氯乙烯树脂加到混合锅中,在80℃加入炭黑母粒,在110℃加入抗氧化剂;
步骤四:挤出成型,利用锥形双螺杆挤出机挤出成管材,机筒温度控制在148℃,模具温度控制208℃,口模温度控制在180℃之间,挤出后经真空定径冷却,即得低温高强度给水用聚乙烯管材;
步骤五:冷却,对挤出的管材用水进行冷却变硬而定型,并在冷却的同时连续均匀地将产品引出,所述冷却温度为25℃;
步骤六:切缝,在步骤五制得的管材外环面切割多条梯形缝,相邻梯形缝之间构成加强筋,加强筋提升管材的抗弯性能;
步骤七:清洗,对步骤六处理后的管材清洗,将切割碎屑以及粉尘清除后,将管材放置在干燥箱烘干;
步骤八:布置防滑耐磨组件,在步骤六的梯形缝的侧壁粘接橡胶条,橡胶条避免管材在光滑的表面滚动,并在管材的内壁涂刷热熔后的铁氟龙,自然冷却后,铁氟龙在管材内壁构成耐磨的防粘涂层,且在防粘涂层开设微孔,如此制得给水用聚乙烯管材。
本方案的四组实施例制得的聚乙烯管材的抗弯性能均优于市场传统的聚乙烯管,且管壁不易粘料,因此具有较好的推广价值。
Claims (6)
1.一种给水用聚乙烯管材,其特征在于;该管材的配方包括以下组份:聚乙烯30-36%、聚烯烃10-14%、CPVC树脂8-12%、聚氯乙烯树脂8-10%、炭黑母粒5-9%、抗氧化剂3-6%,其余为铁氟龙。
2.根据权利要求1所述的一种给水用聚乙烯管材,其特征在于:包括聚乙烯30%、聚烯烃14%、CPVC树脂8%、聚氯乙烯树脂10%、炭黑母粒5%、抗氧化剂6%,其余为铁氟龙。
3.根据权利要求1所述的一种给水用聚乙烯管材,其特征在于:包括聚乙烯36%、聚烯烃14%、CPVC树脂8%、聚氯乙烯树脂10%、炭黑母粒5%、抗氧化剂6%,其余为铁氟龙。
4.根据权利要求1所述的一种给水用聚乙烯管材,其特征在于:包括聚乙烯32%、聚烯烃12%、CPVC树脂9%、聚氯乙烯树脂9%、炭黑母粒6%、抗氧化剂4%,其余为铁氟龙。
5.根据权利要求1所述的一种给水用聚乙烯管材,其特征在于:包括聚乙烯34%、聚烯烃13%、CPVC树脂11%、聚氯乙烯树脂9%、炭黑母粒8%、抗氧化剂5%,其余为铁氟龙。
6.一种如权利要求1-5任意一条所述的一种给水用聚乙烯管材的挤出成型方法,其特征在于:该制备方法包括以下步骤:
步骤一:定量称取,将所有的原料按照上述的组份进行称取;
步骤二:抽真空,将聚乙烯、聚烯烃、CPVC树脂、聚氯乙烯树脂、炭黑母粒以及抗氧化剂进行抽真空处理,抽真空处理后将物料放入烘干箱干燥2-4min,使物料中的水分含量在0.4%以下;
步骤三:物料混合,在低转速下将聚乙烯、聚烯烃加到混合锅中,启动高速混料,在70℃将CPVC树脂与聚氯乙烯树脂加到混合锅中,在80℃加入炭黑母粒,在110℃加入抗氧化剂;
步骤四:挤出成型,利用锥形双螺杆挤出机挤出成管材,机筒温度控制在140-150℃,模具温度控制200-210℃,口模温度控制在160-190℃之间,挤出后经真空定径冷却,即得低温高强度给水用聚乙烯管材;
步骤五:冷却,对挤出的管材用水进行冷却变硬而定型,并在冷却的同时连续均匀地将产品引出,所述冷却温度为10-30℃;
步骤六:切缝,在步骤五制得的管材外环面切割多条梯形缝,相邻梯形缝之间构成加强筋,加强筋提升管材的抗弯性能;
步骤七:清洗,对步骤六处理后的管材清洗,将切割碎屑以及粉尘清除后,将管材放置在干燥箱烘干;
步骤八:布置防滑耐磨组件,在步骤六的梯形缝的侧壁粘接橡胶条,橡胶条避免管材在光滑的表面滚动,并在管材的内壁涂刷热熔后的铁氟龙,自然冷却后,铁氟龙在管材内壁构成耐磨的防粘涂层,且在防粘涂层开设微孔,如此制得给水用聚乙烯管材。
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