CN116176051A - 一种高耐温高耐压聚烯烃mupo三色管材及其制备方法 - Google Patents

一种高耐温高耐压聚烯烃mupo三色管材及其制备方法 Download PDF

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CN116176051A
CN116176051A CN202210958116.0A CN202210958116A CN116176051A CN 116176051 A CN116176051 A CN 116176051A CN 202210958116 A CN202210958116 A CN 202210958116A CN 116176051 A CN116176051 A CN 116176051A
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戴天文
何英
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Anhui Yuanli Hi Tech Materials Co ltd
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Abstract

本发明涉及高分子复合材料领域，具体为一种高耐温高耐压聚烯烃MUPO三色管材及其制备方法。外层采用聚乙烯原料和黑色母材料制成；内层采用聚丙烯多元纳米改性复合材料制成，聚丙烯纳米改性复合材料包括如下原料：PPB K8003，茂金属聚乙烯，相容剂，熔脂调节剂，增刚成核剂，环保食品级纳米硅酸钙纤维晶须，环保食品级活性纳米滑石粉，白碳黑，硅扩散油，光热稳定剂，抗氧剂1010，抗氧剂168，光扩散剂，白色母；中间层采用茂金属热塑性弹性体和白色母材料制成。本发明解决了现有的聚乙烯给水管材抗冲击性能低、耐压性能差、拉伸强度不够、韧性差、耐候性差、耐高低温性能差、耐老化性能差，应用领域窄的问题。

Description

一种高耐温高耐压聚烯烃MUPO三色管材及其制备方法
技术领域
本发明涉及高分子复合材料领域，特别是涉及一种高耐温高耐压聚烯烃MUPO三色管材及其制备方法。
背景技术
早期水网使用钢筋混凝土管和金属管。钢筋混凝土管内壁摩擦系数较大，在输送过程中阻力较大，使得输送效率降低。加上重量较重，且施工安装时容易破损。金属水管易腐蚀，造价较高，后期维护费用较大，寿命短。塑料问世后，由于其杰出的性能(韧性好，较好的抗疲劳强度，可挠性，易于加工，使用寿命长)，逐渐发展成可以满足市场管材的需要。鉴于PE管材的众多优点，逐步了取代了传统钢筋混凝土管和钢管；PE给水管材集环境保护、节能、卫生、密封性、防腐蚀、抗震等级等优势于一体，在管道行业具备不能代替性。
但PE给水管在应用中表现诸多的缺陷和问题：PE给水管材不能露天储放太久，经历一个高温天气暴晒后，品质变差、变质、变脆、性能降低，管材老化降低使用寿命；PE管材和管件如不是同一厂家供应，化学特性不一致，热熔焊接时熔接缝处粘接不牢固，容易漏水或者爆管；受温度影响大，热胀冷缩后内应力大毁坏管道；对接或承插热熔时焊接品质不高，PE给水管有对碰热熔对接和承插热熔对接两种对接方式。对碰熔接这种管材，接口热熔对接品质难以保证，在二次加压供水管路中受水压时高时低的摇摆不定危害，加之高低温热胀冷缩、地基沉降等原因，都很有可能产生管道爆裂现象；PE管材强度低，抗慢速裂纹增长能力差，在工地施工或者运输过程中，遇到坚硬石头、金属碰撞挤压易引起凹坑，裂纹扩张，直至穿孔爆管；内外壁壁厚不圆，特别是大口径管材，在焊接时需要对管材进行圆度加工，施工难；PE管材连接有热熔、电熔、和法兰等方式，在山区野外等非常不方便。
由于HDPE材料特性，使HDPE实壁管材的力学性能和使用范围受到了一定的局限。
发明内容
本发明目的是针对背景技术中存在的问题，提出一种高耐温高耐压聚烯烃MUPO三色管材及其制备方法，解决现有的聚乙烯给水管材抗冲击性能低、耐压性能差、拉伸强度不够、韧性差、耐候性差、耐高低温性能差、耐老化性能差，应用领域窄的问题。
一方面，本发明提出一种高耐温高耐压聚烯烃MUPO三色管材，由内层、中间层和外层经三层共挤热熔复合构成，内层和外层均为实壁层，中间层为接合层；
外层采用聚乙烯原料和黑色母材料制成，包括如下按重量份计的原料：100份聚乙烯为HDPE100级原料延长23050，2份黑色母；采用PE100级原料，以利于与市场上标准HDPE材质的管件热熔、电熔或者法兰等方式连接；
内层采用聚丙烯多元纳米改性复合材料制成，聚丙烯纳米改性复合材料包括如下按重量份计的原料：50-75份PPB K8003，10-20份茂金属聚乙烯三井化学MPE SP0540，3-6份相容剂POE-G-MAH，0.2-0.4份熔脂调节剂，0.2-0.4份增刚成核剂，5-10份环保食品级纳米硅酸钙纤维晶须，5-9份环保食品级活性纳米滑石粉，1-2份白碳黑，0.5-1份硅扩散油，0.3-0.5份光热稳定剂，0.3-0.5份抗氧剂1010，0.3-0.5份抗氧剂168，0.5-1份光扩散剂，1-3份白色母；
中间层采用茂金属热塑性弹性体和白色母材料制成，包括如下按重量份计的原料：100份茂金属热塑性弹性体为OBC9107，2份白色母。
优选的，采用一步法制得内层采用的聚丙烯多元纳米改性复合材料；先用360度旋转的带加温装置的高混机对物料进行高混，使各种物料能达到高度均化；再通过双螺杆造粒机进行改性造粒，得到聚丙烯多元纳米改性复合材料。
另一方面，本发明提出一种上述高耐温高耐压聚烯烃MUPO三色管材的制备方法，将内层采用的聚丙烯多元纳米改性复合材料加入内层挤出机挤出；将中间层采用的茂金属热塑性弹性体和白色母材料加入高速混合机中搅拌15分钟，然后加入中间层挤出机挤出；将外层采用的聚乙烯原料和黑色母材料加入高速混合机中搅拌15分钟，然后加入到外层挤出机挤出；通过挤出机单螺杆加热熔融塑化输送至三层共挤机头口模和成型机，管材内层、中间层和外层均匀地熔合在一起，内层挤出各段温度：190℃，210℃，230℃，230℃，230℃，中间层挤出各段温度：160℃，170℃，180℃，180℃，180℃，外层挤出各段温度：180℃，190℃，200℃，200℃，200℃。
与现有技术相比，本发明具有如下有益的技术效果：
本发明中，内层、外层采用不同质材料，来达到内、外层不同功能的要求，内层为高强度、高抗冲、耐高温、耐疲劳、抗蠕变、耐环境应力开裂等，内层通过PP改性材，其比同口径的HDPE实壁管材耐压能力提高了50％以上，耐温能力从40℃提高到85℃度以上；外层要求与市场标准HDPE管件同质，利于连接等，通过中间层的接合层中茂金属热塑性弹性体OBC把内外层完美熔合在一起，确保内外层热熔复合后，管材内外壁永不分层。
高耐温高耐压聚烯烃MUPO三色管材内层复合材料体系中，用茂金属热塑性弹性体接支相容剂POE-G-MAH和复合纳米无机材料硅酸钙纤维晶须、滑石粉、白碳黑复合增强增韧方法进行共混改性，提高了体系的高强度、高抗冲、耐高温、耐疲劳、抗蠕变、耐环境应力开裂性能等；用茂金属聚乙烯MPE SP0540在增韧的同时能保证材料体系的刚性不下降。
具体实施方式
实施例一
本实施例提出的一种高耐温高耐压聚烯烃MUPO三色管材，由内层、中间层和外层经三层共挤热熔复合构成，内层和外层均为实壁层，中间层为接合层，内层为白色层，中间层为蓝色层，外层是防紫外线照射的黑色层，三层颜色形成鲜明黑蓝白三色管材，此管材可用于给水管材、排水、非开挖管材、市政供暖热力管材；当中间层颜色为黄色时，管材用作燃气管材用，根据颜色来确定不同的应用场合。
内层采用聚丙烯多元纳米改性复合材料制成，聚丙烯纳米改性复合材料包括如下按重量份计的原料：50份PPB K8003，20份茂金属聚乙烯三井化学MPE SP0540，6份相容剂POE-G-MAH，0.2份熔脂调节剂，0.2份增刚成核剂，10份环保食品级纳米硅酸钙纤维晶须，9份环保食品级活性纳米滑石粉，2份白碳黑，1份硅扩散油，0.3份光热稳定剂，0.3份抗氧剂1010，0.3份抗氧剂168，1份光扩散剂，3份白色母。
将上述内层原料加入高速混合机中混合10-15分钟，制得混合物料，再加入到双螺杆挤出机组中进行熔融、塑化、混炼、挤出、造粒，最后冷却切粒，得到高耐温高耐压聚烯烃MUPO三色管材内层专用料。
将内层采用的聚丙烯多元纳米改性复合材料加入内层挤出机挤出；将中间层采用的茂金属热塑性弹性体和白色母材料加入高速混合机中搅拌15分钟，然后加入中间层挤出机挤出；将外层采用的聚乙烯原料和黑色母材料加入高速混合机中搅拌15分钟，然后加入到外层挤出机挤出；通过挤出机单螺杆加热熔融塑化输送至三层共挤机头口模和成型机，管材内层、中间层和外层均匀地熔合在一起，口模温度：230℃，内层挤出各段温度：190℃，210℃，230℃，230℃，230℃，中间层挤出各段温度：160℃，170℃，180℃，180℃，180℃，外层挤出各段温度：180℃，190℃，200℃，200℃，200℃。
表1、实施例一制备的高耐温高耐压聚烯烃MUPO三色管材的物理力学性能
Figure BDA0003792156110000051
实施例二
本实施例提出的一种高耐温高耐压聚烯烃MUPO三色管材，由内层、中间层和外层经三层共挤热熔复合构成，内层和外层均为实壁层，中间层为接合层。
内层采用聚丙烯多元纳米改性复合材料制成，聚丙烯纳米改性复合材料包括如下按重量份计的原料：75份PPB K8003，10份茂金属聚乙烯三井化学MPE SP0540，3份相容剂POE-G-MAH，0.4份熔脂调节剂，0.4份增刚成核剂，5份环保食品级纳米硅酸钙纤维晶须，5份环保食品级活性纳米滑石粉，1份白碳黑，0.5份硅扩散油，0.5份光热稳定剂，0.5份抗氧剂1010，0.5份抗氧剂168，0.5份光扩散剂，1份白色母。
将上述内层原料加入高速混合机中混合10-15分钟，制得混合物料，再加入到双螺杆挤出机组中进行熔融、塑化、混炼、挤出、造粒，最后冷却切粒，得到高耐温高耐压聚烯烃MUPO三色管材内层专用料。
将内层采用的聚丙烯多元纳米改性复合材料加入内层挤出机挤出；将中间层采用的茂金属热塑性弹性体和白色母材料加入高速混合机中搅拌15分钟，然后加入中间层挤出机挤出；将外层采用的聚乙烯原料和黑色母材料加入高速混合机中搅拌15分钟，然后加入到外层挤出机挤出；通过挤出机单螺杆加热熔融塑化输送至三层共挤机头口模和成型机，管材内层、中间层和外层均匀地熔合在一起，口模温度：230℃，内层挤出各段温度：190℃，210℃，230℃，230℃，230℃，中间层挤出各段温度：160℃，170℃，180℃，180℃，180℃，外层挤出各段温度：180℃，190℃，200℃，200℃，200℃。
表2、实施例二制备的高耐温高耐压聚烯烃MUPO三色管材的物理力学性能
Figure BDA0003792156110000061
本发明中，内层、外层采用不同质材料，来达到内、外层不同功能的要求(内层为高强度、高抗冲、耐高温、耐疲劳、抗蠕变、耐环境应力开裂等；外层要求与市场标准HDPE管件同质，利于连接等)，内层通过PP改性材，其比同口径的HDPE实壁管材耐压能力提高了50％以上，耐温能力从40℃提高到85℃度以上；通过中间层的接合层中茂金属热塑性弹性体OBC把内外层完美熔合在一起，确保内外层热熔复合后，管材内外壁永不分层。OBC具有较高的结晶温度，是弹性与耐高温平衡性能的改进材料，加工时能快速成型，无论在室温下还是在高温下，都有更好的弹性恢复和压缩形变能力；OBC是乙烯和丙烯基的共聚物，它与丙烯和乙烯能完全相容，是两者的最佳结合材料。
高耐温高耐压聚烯烃MUPO三色管材内层复合材料体系中，用茂金属热塑性弹性体接支相容剂POE-G-MAH和复合纳米无机材料硅酸钙纤维晶须、滑石粉、白碳黑复合增强增韧方法进行共混改性，提高了体系的高强度、高抗冲、耐高温、耐疲劳、抗蠕变、耐环境应力开裂性能等；用茂金属聚乙烯MPE SP0540在增韧的同时能保证材料体系的刚性不下降。
上面对本发明的实施方式作了详细说明，但是本发明并不限于此，在所属技术领域的技术人员所具备的知识范围内，在不脱离本发明宗旨的前提下还可以作出各种变化。

Claims (3)

1.一种高耐温高耐压聚烯烃MUPO三色管材，其特征在于，由内层、中间层和外层经三层共挤热熔复合构成，内层和外层均为实壁层，中间层为接合层；
外层采用聚乙烯原料和黑色母材料制成，包括如下按重量份计的原料：100份聚乙烯为HDPE100级原料延长23050，2份黑色母；
内层采用聚丙烯多元纳米改性复合材料制成，聚丙烯纳米改性复合材料包括如下按重量份计的原料：50-75份PPB K8003，10-20份茂金属聚乙烯三井化学MPE SP0540，3-6份相容剂POE-G-MAH，0.2-0.4份熔脂调节剂，0.2-0.4份增刚成核剂，5-10份环保食品级纳米硅酸钙纤维晶须，5-9份环保食品级活性纳米滑石粉，1-2份白碳黑，0.5-1份硅扩散油，0.3-0.5份光热稳定剂，0.3-0.5份抗氧剂1010，0.3-0.5份抗氧剂168，0.5-1份光扩散剂，1-3份白色母；
中间层采用茂金属热塑性弹性体和白色母材料制成，包括如下按重量份计的原料：100份茂金属热塑性弹性体为OBC9107，2份白色母。
2.根据权利要求1所述的高耐温高耐压聚烯烃MUPO三色管材，其特征在于，采用一步法制得内层采用的聚丙烯多元纳米改性复合材料；先用360度旋转的带加温装置的高混机对物料进行高混，使各种物料能达到高度均化；再通过双螺杆造粒机进行改性造粒，得到聚丙烯多元纳米改性复合材料。
3.一种根据权利要求2所述的高耐温高耐压聚烯烃MUPO三色管材的制备方法，其特征在于，将内层采用的聚丙烯多元纳米改性复合材料加入内层挤出机挤出；将中间层采用的茂金属热塑性弹性体和白色母材料加入高速混合机中搅拌15分钟，然后加入中间层挤出机挤出；将外层采用的聚乙烯原料和黑色母材料加入高速混合机中搅拌15分钟，然后加入到外层挤出机挤出；通过挤出机单螺杆加热熔融塑化输送至三层共挤机头口模和成型机，管材内层、中间层和外层均匀地熔合在一起，内层挤出各段温度：190℃，210℃，230℃，230℃，230℃，中间层挤出各段温度：160℃，170℃，180℃，180℃，180℃，外层挤出各段温度：180℃，190℃，200℃，200℃，200℃。
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