CN104151712B - 一种抗低温冲击韧性的pp-r管材材料及其制备方法 - Google Patents

一种抗低温冲击韧性的pp-r管材材料及其制备方法 Download PDF

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CN104151712B
CN104151712B CN201410357853.0A CN201410357853A CN104151712B CN 104151712 B CN104151712 B CN 104151712B CN 201410357853 A CN201410357853 A CN 201410357853A CN 104151712 B CN104151712 B CN 104151712B
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龚维
尹晓刚
王潇梦
付海
吴伟
何颖
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Luoyang Xiangzhi Intellectual Property Service Co ltd
Shanghai Shpes Pipe Industrial Co ltd
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Abstract

本发明公开了一种抗低温冲击韧性的PP‑R管材材料,其原材料按重量份计,PP‑R树脂83‑94份,灰色母粒1‑2份,增韧改性剂5~15份;其制备方法包括:步骤1、配料:按照原材料重量份计,PP‑R树脂83‑93份,灰色母粒1‑2份,增韧改性剂5~15份的范围配置原材料;步骤2、挤出:将配置好的原材料加入双螺杆挤出机中进行共混成型、冷却、切粒,得到改性料A;步骤3、烘干:将改性料A在烘干箱中进行烘干,得到改性料B;步骤4、注塑成型:将改性料B在注塑机上注塑成PP‑R管材;本发明解决了现有的PP‑R管材材料在低温‑10℃至23℃情况下使用,管材抗低温性能差及破损率大,极大限制了工业化应用等问题。

Description

一种抗低温冲击韧性的PP-R管材材料及其制备方法
技术领域
本发明属于PP-R管材技术,尤其涉及一种抗低温冲击韧性的PP-R管材材料及其制备方法。
背景技术
PP-R是采用气相共聚工艺使5%左右的PE在PP的分子链中随机地均匀聚合(无规共聚)而制成的新一代管道材料。它强度高,有较好的抗冲击性能和长期蠕变性能。在工作温度70 ℃,工作压力为1Mpa的条件下,管材使用寿命可达50年,市场上还没有任何一种更廉价的材料可以取代它。但是PP-R管材在-10℃至23℃低温使用范围内,抗低温冲击性能差,PP-R管材在低温下破损率大,极大限制工业化应用。
发明内容
本发明所要解决的技术问题是,提供一种抗低温冲击韧性的PP-R管材材料及其制备方法,以解决现有的PP-R管材在低温-10℃至23℃情况下使用,管材抗低温性能差及破损率大,极大限制了工业化应用等问题。
本发明的技术方案:
一种抗低温冲击韧性的PP-R管材材料,其原材料按重量份计,PP-R树脂83-94份,灰色母粒1-2份,增韧改性剂5~15份。
其原材料按重量份计优选,PP-R树脂88.5份,灰色母粒1.5份,增韧改性剂10份。
PP-R树脂为无规共聚聚丙烯,牌号:B4902。
灰色母粒为PP-R树脂为基材的色母粒,牌号:SM-403。
增韧改性剂为热塑性弹性体TPR,牌号:2096。
所述抗低温冲击韧性的PP-R管材材料的制备方法:它包括下述步骤:
步骤1、配料:按照原材料重量份计,PP-R树脂83-94份,灰色母粒1-2份,增韧改性剂5~15份的范围配置原材料;
步骤2、挤出:将配置好的原材料加入双螺杆挤出机中,进行共混成型、冷却、切粒,得到改性料A;
步骤3、烘干:将改性料A在烘干箱中进行烘干,得到改性料B;
步骤4、注塑成型:将改性料B在注塑机上注塑成PP-R管材。
步骤2所述的挤出工艺,双螺杆挤出机的工艺参数为:一区190 ℃、二区195 ℃、三区200 ℃、四区205 ℃、五区210 ℃、机头205 ℃,螺杆转速40 r/min。
步骤3烘干工艺参数为:烘干箱温度为90℃,烘干时间180分钟。
步骤4注塑成型工艺中,其注塑参数为:温度230℃,注塑速度35%,注塑压力50Mpa,注塑时间12S。
本发明有益效果:
本发明技术方案的原理为:将PP-R树脂、增韧改性剂、灰色母粒等混合后制备PP-R管材材料时,增韧改性剂选热塑性弹性体(TPR,2096),通过相容性技术和改性技术分别在基体材料相中添加第二相橡胶相、第三相色母粒,实现PP-R专用料配色均匀,保证其他性能不降低条件下,抗低温冲击韧性获得提高,本发明将流变学理论、相容性技术应用于PP-R树脂中进行改性,解决了多相存在下提高无规共聚聚丙烯专用料抗低温脆性的核心技术,与目前市场上的PP-R管材相比,本发明在保证耐压性能、耐热性能不降低的基础上,其抗低温冲击性能得到大幅度提高,赋予原制品所不具有的崭新特性,对PP-R管材领域的工业化应用具有重要指导价值。本发明与现有技术相比,本发明在PP-R树脂中加入热塑性弹性体TPR,通过不同配方设计达到很好的增韧效果;与目前市场上PP-R管材相比,是一种性价比较好的技术,本发明解决了现有的PP-R管材材料在低温-10℃至23℃情况下使用,管材抗低温性能差及破损率大,极大限制了工业化应用等问题。
具体实施方式
实施例一:
在一种抗低温冲击韧性的PP-R管材材料,其原材料按重量份计,PP-R树脂83-94份,灰色母粒1-2份,增韧改性剂5~15份,范围内配置原料。
步骤1、原料选取配置:PPR树脂选用无规共聚聚丙烯,牌号:B4902 ,中国石油化工股份有限公司北京燕山分公司,含量94份。
热塑性弹性体TPR,牌号:2096,深圳市嘉鑫豪塑胶制品有限公司,含量5份
灰色母粒,牌号:SM-403,广东联塑科技实业有限公司,含量1份。
步骤2、挤出:在挤出工艺,双螺杆挤出机一区190 ℃、二区195 ℃、三区200 ℃、四区205 ℃、五区210 ℃、机头205 ℃;螺杆转速40 r/min,将配置好的原材料加入双螺杆挤出机中,进行共混成型、冷却、切粒,得到改性料A;
步骤3、烘干:将步骤2得到的改性料A,在温度为90℃的烘箱中进行烘干,时间为180分钟,得到改性料B;
步骤4、注塑:将改性料B在注塑机上注塑PP-R管材材料,其注塑工艺为:温度230℃,注塑速度35%,注塑压力50Mpa,注塑时间12S。
从表1中可以看出,按照本发明制备的PP-R管材材料,通过挤出生产的产品,在-10℃—23℃温度范围内,其抗低温冲击韧性明显增加,与市场PP-R管材相比,低温下的抗低温冲击韧性是市场PP-R管材的2-3倍,本发明适合于PP-R管材的工业化生产。
实施例二:
在一种抗低温冲击韧性的PP-R管材材料,其原材料按重量份计,PP-R树脂83-94份,灰色母粒1-2份,增韧改性剂5~15份,范围内配置原料。
步骤1、原料选取配置:PPR树脂选用无规共聚聚丙烯,牌号:B4902 ,中国石油化工股份有限公司北京燕山分公司,含量88.5份。
热塑性弹性体TPR,牌号:2096,深圳市嘉鑫豪塑胶制品有限公司,含量10份
灰色母粒,牌号:SM-403,广东联塑科技实业有限公司,含量1.5份。重复实施例1中步骤2-4即得成品。
从表2中可以看出,按照本发明制备的PP-R管材材料,通过挤出生产的产品,在-10℃—23℃温度范围内,其抗低温冲击韧性明显增加,与市场PP-R管材相比,低温下的抗低温冲击韧性是市场PP-R管材的3-4倍,此种范围专用料的配方适合于PP-R管材的工业化生产。
实施例三:
在一种抗低温冲击韧性的PP-R管材材料,其原材料按重量份计,PP-R树脂83-94份,灰色母粒1-2份,增韧改性剂5~15份,范围内配置原料。
步骤1、原料选取配置:PPR树脂选用无规共聚聚丙烯,牌号:B4902 ,中国石油化工股份有限公司北京燕山分公司,含量83份。
热塑性弹性体TPR,牌号:2096,深圳市嘉鑫豪塑胶制品有限公司,含量15份
灰色母粒,牌号:SM-403,广东联塑科技实业有限公司,含量2份
重复实施例1中步骤2-4即得成品。
从表3中可以看出,按照本发明配方及工艺制备的PP-R管材专用料,通过挤出生产的产品,在-10℃—23℃温度范围内,其抗低温冲击韧性明显增加,与市场PP-R管材相比,低温下的抗低温冲击韧性是市场PP-R管材的3-4倍,此种范围专用料的配方适合于PP-R管材的工业化生产。

Claims (5)

1.一种抗低温冲击韧性的PP-R管材材料,其特征在于:其原材料按重量份计,PP-R树脂83-94份,灰色母粒1-2份,增韧改性剂5~15份, 增韧改性剂为热塑性弹性体TPR,牌号:2096;PP-R树脂为无规共聚聚丙烯,牌号:B4902;灰色母粒为PP-R树脂为基材的色母粒,牌号:SM-403。
2.根据权利要求1所述的一种抗低温冲击韧性的PP-R管材材料,其特征在于:其原材料按重量份计,PP-R树脂88.5份,灰色母粒1.5份,增韧改性剂10份。
3.如权利要求1所述抗低温冲击韧性的PP-R管材材料的制备方法:它包括下述步骤:
步骤1、配料:按照原材料重量份计,PP-R树脂83-94份,灰色母粒1-2份,增韧改性剂5~15份的范围配置原材料;
步骤2、挤出:将配置好的原材料加入双螺杆挤出机中,进行共混成型、冷却、切粒,得到改性料A;步骤2所述的挤出工艺,双螺杆挤出机的工艺参数为:一区190 ℃、二区195 ℃、三区200 ℃、四区205 ℃、五区210 ℃、机头205 ℃,螺杆转速40 r/min;
步骤3、烘干:将改性料A在烘干箱中进行烘干,得到改性料B;
步骤4、注塑成型:将改性料B在注塑机上注塑成PP-R管材。
4.根据权利要求3所述的一种抗低温冲击韧性的PP-R管材材料的制备方法,其特征在于:步骤3烘干工艺参数为:烘干箱温度为90℃,烘干时间180分钟。
5.根据权利要求3所述的一种抗低温冲击韧性的PP-R管材材料的制备方法,其特征在于:步骤4注塑成型工艺中,其注塑参数为:温度230℃,注塑速度35%,注塑压力50MPa,注塑时间12s。
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