CN103672195B - 一种防结垢型耐热聚乙烯地暖管材及其制备方法 - Google Patents
一种防结垢型耐热聚乙烯地暖管材及其制备方法 Download PDFInfo
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Abstract
一种防结垢型耐热聚乙烯地暖管材,其特征在于:所述管材由光亮层、着色层和光亮抗菌层组成;光亮层包括PE-RT(耐热聚乙烯)和PE塑料增亮剂;着色层包括PE-RT(耐热聚乙烯)和色母粒;光亮抗菌层包括PE-RT(耐热聚乙烯)、纳米抗菌母粒和PE塑料增亮剂。本发明制备的地暖管材,通过设置光亮抗菌层,大大降低了内表面的粗糙度,同时使管材具有了自洁功能和灭杀细菌功能。
Description
技术领域
本发明涉及一种地暖管道的管材,尤其是涉及一种低粗糙度、抗菌性能优良、防结垢型的热聚乙烯地暖管材及其制备方法。
背景技术
近年来在地暖领域PE-RT管应用日趋广泛,但是PE-RT管在使用几个采暖季后发现管道内壁有结垢现象,影响系统的换热效率,需要进行周期性清洗。PE-RT管内壁结垢主要原因有两个因素:一是管材内表面粗糙度大,管材表面粗糙度是指管材表面具有的微小峰谷不平度,即波峰与波谷之间高度差。PE-RT地暖管内壁表面粗糙度越小,则内表面越光滑,污垢越难附着,从而减少地暖管的清洗频次;二是PE-RT管没有自洁功能和灭杀细菌功能,水源的污染、自来水厂的落后工艺及其管网的陈旧不合理,使所用的PE-RT地暖管成为细菌滋长地,出现结垢现象,严重影响采暖效果,如不及时清洗会造成管路堵塞,造成极大的安全隐患。如果管道具有灭杀细菌功能会延缓结垢的时间,从而延长管道的清洗周期。本发明旨在从以上两方面因素减少结垢的产生。
发明内容
本发明要解决的问题是提供一种低粗糙度、抗菌性能优良、防结垢型的耐热聚乙烯地暖管材。
为解决上述技术问题,本发明采用的技术方案是:一种防结垢型耐热聚乙烯地暖管材,由光亮层、着色层和光亮抗菌层组成;
光亮层包括PE-RT(耐热聚乙烯)和PE塑料增亮剂;着色层包括PE-RT(耐热聚乙烯)和色母粒;光亮抗菌层包括PE-RT(耐热聚乙烯)、纳米银抗菌母粒和PE塑料增亮剂。
进一步,所述三层中所用的PE-RT(耐热聚乙烯)的熔流比为MFR1(190℃,21.6Kg):MFR2(190℃,2.16Kg)>17。
优选的,所述纳米抗菌母粒为纳米银抗菌母粒。
其中,光亮层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;PE塑料增亮剂:0.1-1份。着色层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;色母粒:2-6份。光亮抗菌层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;纳米银抗菌母粒:0.5-2.5份;PE塑料增亮剂:0.1-1份。
优选的,所述光亮层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;PE塑料增亮剂:0.2-0.6份。着色层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;色母粒:2-6份。光亮抗菌层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;纳米银抗菌母粒:0.6-2.2份;PE塑料增亮剂:0.2-0.6份。
进一步优选,光亮层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;PE塑料增亮剂:0.2-0.5份。着色层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;色母粒:3-5份。光亮抗菌层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;纳米银抗菌母粒:1.0-2.0份;PE塑料增亮剂:0.2-0.5份。
本发明的另一目的在于提供一种上述地暖管材的制备方法,包括如下步骤:(1)分别将光亮层材料、着色层材料、光亮抗菌层材料搅拌均匀;
(2)将上述搅拌均匀的材料分别加入挤出机中,采用三台挤出机进行三层共挤,经过真空定径、冷却定型后,即得。
该制备方法中,光亮层挤出机的机筒温度为205-215℃,模头温度为200-210℃;着色层挤出机的机筒温度为205-215℃,模头温度为205-215℃;光亮抗菌层挤出机的机筒温度为195-205℃,模头温度为200-210℃。
生产线速度为13-25m/min,口模内径尺寸为30-36mm。
本发明具有的优点和积极效果是:本发明制备的地暖管材,通过设置光亮抗菌层,大大降低了内表面的粗糙度,同时使管材具有了自洁功能和灭杀细菌功能。现有技术的管道平均每2到3年就需要对地暖管管道进行清洗,而本发明可将其清洗周期延长到6-7年,具有优良的灭菌和防结垢功能。
具体实施方式
下述实施例中的方法,如无特别说明,均为常规方法。
采用的原料PE-RT(耐热聚乙烯)均为熔流比为MFR1(190℃,21.6Kg):MFR2(190℃,2.16Kg)>17。
色母粒的颜色可根据需要选择。
PE塑料增亮剂为普通的市售产品,如深圳金大全科技有限公司生产的A-409型号增亮剂。
纳米抗菌母粒为普通的市售产品,如佛山市巨龙高科技有限公司生产的JL106型号纳米银抗菌母粒。
实施例1:
光亮层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;PE塑料增亮剂:0.15份。着色层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;色母粒:2份。光亮抗菌层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;纳米银抗菌母粒:0.8份;PE塑料增亮剂:0.15份。
制备方法:将光亮层材料、着色层材料、光亮抗菌层材料搅拌均匀;将上述搅拌均匀的材料分别加入挤出机中,采用三台挤出机进行三层共挤,经过真空定径、冷却定型后,即得。
实施例2
光亮层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;PE塑料增亮剂:0.3份。着色层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;色母粒:4份。光亮抗菌层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;纳米银抗菌母粒:1.2份;PE塑料增亮剂:0.3份。
制备方法:将光亮层材料、着色层材料、光亮抗菌层材料搅拌均匀;将上述搅拌均匀的材料分别加入挤出机中,采用三台挤出机进行三层共挤,经过真空定径、冷却定型后,即得。
实施例3
光亮层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;PE塑料增亮剂:0.4份。着色层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;色母粒:5份。光亮抗菌层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;纳米银抗菌母粒:1.6份;PE塑料增亮剂:0.4份。
制备方法:将光亮层材料、着色层材料、光亮抗菌层材料搅拌均匀;将上述搅拌均匀的材料分别加入挤出机中,采用三台挤出机进行三层共挤,经过真空定径、冷却定型后,即得。
实施例4
光亮层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;PE塑料增亮剂:0.6份。着色层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;色母粒:6份。光亮抗菌层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;纳米银抗菌母粒:2.0份;PE塑料增亮剂:0.6份。
制备方法:将光亮层材料、着色层材料、光亮抗菌层材料搅拌均匀;将上述搅拌均匀的材料分别加入挤出机中,采用三台挤出机进行三层共挤,经过真空定径、冷却定型后,即得。
实施例1-4任意一个实施例中的挤出机的挤出条件见表1:
表1
上述生产线速度范围为13-25m/min,所用口模内径尺寸为30-36mm。所生产的耐热聚乙烯地暖管产品的公称外径dn为20mm,公称壁厚en为2.0mm。
实施例1-4制得的管材采用i60型表面粗糙度测量仪(证书编号为CDJZdy1200310)按照GB/T1031-2009法在空气温度为20.0℃,相对湿度为48%的环境条件下,进行内表面粗糙度检测,检测结果如表2所示:
表2
由上述测试结果可知,本发明的管材内表面粗糙度平均值0.058μm,远远小于普通PE-RT管内表面粗糙度0.5μm。
以上对本发明的较佳实施例进行了详细说明,但所述内容仅为本发明的较佳实施例,不能被认为用于限定本发明的实施范围。凡依本发明申请范围所作的均等变化与改进等,均应仍归属于本发明的专利涵盖范围之内。
Claims (9)
1.一种防结垢型耐热聚乙烯地暖管材,其特征在于:所述管材由光亮层、着色层和光亮抗菌层组成;
所述光亮层包括PE-RT(耐热聚乙烯)和PE塑料增亮剂;
所述着色层包括PE-RT(耐热聚乙烯)和色母粒;
所述光亮抗菌层包括PE-RT(耐热聚乙烯)、纳米抗菌母粒和PE塑料增亮剂。
2.根据权利要求1所述的地暖管材,其特征在于:所述光亮层、着色层、光亮抗菌层中的PE-RT(耐热聚乙烯)的熔流比均为MFR1(190℃,21.6Kg):MFR2(190℃,2.16Kg)>17。
3.根据权利要求1所述的地暖管材,其特征在于:所述纳米抗菌母粒为纳米银抗菌母粒。
4.根据权利要求3所述的地暖管材,其特征在于:所述光亮层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;PE塑料增亮剂:0.1-1份;
所述着色层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;色母粒:2-6份;
所述光亮抗菌层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;纳米银抗菌母粒:0.5-2.5份;PE塑料增亮剂:0.1-1份。
5.根据权利要求4所述的地暖管材,其特征在于:所述光亮层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;PE塑料增亮剂:0.2-0.6份;
所述着色层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;色母粒:2-6份;
所述光亮抗菌层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;纳米银抗菌母粒:0.6-2.2份;PE塑料增亮剂:0.2-0.6份。
6.根据权利要求5所述的地暖管材,其特征在于:所述光亮层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;PE塑料增亮剂:0.2-0.5份;
所述着色层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;色母粒:3-6份;
所述光亮抗菌层中各组分的质量份数为:PE-RT(耐热聚乙烯):100份;纳米级抗菌母粒:1.0-2.0份;PE塑料增亮剂:0.2-0.5份。
7.一种制备如权利要求1-6任一项所述的地暖管材的方法,其特征在于:
(1)分别将光亮层材料、着色层材料、光亮抗菌层材料搅拌均匀;
(2)将上述搅拌均匀的材料分别加入挤出机中,采用三台挤出机进行三层共挤,经过真空定径、冷却定型后,即得。
8.根据权利要求7所述的方法,其特征在于:所述光亮层挤出机的机筒温度为205-215℃,模头温度为200-210℃;所述着色层挤出机的机筒温度为205-215℃,模头温度为205-215℃;所述光亮抗菌层挤出机的机筒温度为195-205℃,模头温度为200-210℃。
9.根据权利要求8所述的方法,其特征在于:所述挤出机组成的生产线速度为13-25m/min,口模内径尺寸为30-36mm。
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