CN108943881A - 一种新型全塑保温耐压输送管道及制备方法 - Google Patents

一种新型全塑保温耐压输送管道及制备方法 Download PDF

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CN108943881A
CN108943881A CN201810570773.1A CN201810570773A CN108943881A CN 108943881 A CN108943881 A CN 108943881A CN 201810570773 A CN201810570773 A CN 201810570773A CN 108943881 A CN108943881 A CN 108943881A
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parts
conveyance conduit
resistant
heat
novel
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CN108943881B (zh
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侯连龙
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Hebei Hui Tube Industry Co Ltd
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Abstract

本发明属于管道技术领域，提出了一种新型全塑保温耐压输送管道及制备方法，其中输送管道包括管体，管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，聚烯烃外层由以下重量份的成分组成：聚乙烯50～60份，热塑性弹性体30～50份，长玻璃纤维5～30份，聚酯纤维或碳纤维1～20份，巯基石墨烯3～5份，多面体低聚倍半硅氧烷5～10份，马来酸酐接枝热塑性弹性体5～7份，填料1～10份，润滑剂0.5～1份，抗氧剂1～2份，脱模剂0.5～1份；耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料；本发明解决了现有技术塑料输送管道强度低、韧性差、耐冲击性差、阻燃性能低等问题。

Description

一种新型全塑保温耐压输送管道及制备方法
技术领域
本发明属于管道技术领域，提出了一种新型全塑保温耐压输送管道及制备方法。
背景技术
过去，输水输气管道多采用钢管以及保温层、保护层结构，但是这种金属结构的输送管道普遍存在着自重大、质地硬而脆、材料价格高、加工工艺复杂、生产成本高等缺点。为克服这些缺陷，行业内的技术人员不断研究塑料材质的管道，用以替代金属管道，达到耐腐蚀、加工简单、成本低的目的。但是，现有塑料输送管道存在着强度低、韧性差、耐冲击性差、阻燃性能低等问题。
发明内容
本发明提出了一种新型全塑保温耐压输送管道及制备方法，解决了现有技术塑料输送管道强度低、韧性差、耐冲击性差、阻燃性能低等问题。
本发明的技术方案是这样实现的：
一种新型全塑保温耐压输送管道，包括管体，所述管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，所述聚烯烃外层由以下重量份的成分组成：聚乙烯50～60份，热塑性弹性体30～50份，长玻璃纤维5～30份，聚酯纤维或碳纤维1～20份，巯基石墨烯3～5份，多面体低聚倍半硅氧烷5～10份，马来酸酐接枝热塑性弹性体5～7份，填料1～10份，润滑剂0.5～1份，抗氧剂1～2份，脱模剂0.5～1份；所述耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料。
作为进一步技术方案，所述聚烯烃外层由以下重量份的成分组成：聚乙烯57份，热塑性弹性体40份；长玻璃纤维20份，聚酯纤维或碳纤维2份，巯基石墨烯4份，多面体低聚倍半硅氧烷7份，马来酸酐接枝热塑性弹性体6份，填料5份，润滑剂0.8份，抗氧剂1.6份，脱模剂0.7份。
作为进一步技术方案，所述热塑性弹性体为聚烯烃弹性体或聚氨酯弹性体。
作为进一步技术方案，所述填料为滑石粉、石墨、陶土、碳酸钙中的一种。
作为进一步技术方案，所述抗氧剂为抗氧剂1010，所述润滑剂为脂肪酸酰胺，所述脱模剂为甲基硅油。
作为进一步技术方案，所述长玻璃纤维长度为4～6mm，所述聚酯纤维或碳纤维长度为6～7mm。
作为进一步技术方案，所述聚烯烃外层的厚度占管体的壁面厚度的5％～40％，所述聚氨酯保温发泡层的厚度占管体的壁面厚度的20％～70％，所述耐热聚烯烃复合材料内层的厚度占管体的壁面厚度的10％～40％。
一种新型全塑保温耐压输送管道，包括以下步骤制备：
S1、按照权利要求1所述的新型全塑保温耐压输送管道的配方，称取各个组分备用；
S2、将长玻璃纤维、聚酯纤维或碳纤维与热塑性弹性体、马来酸酐接枝热塑性弹性体加入高速混合机，在高速混合机中2000～2500r/min的转速下混合3～5min，将混合后的物料加入到同向啮合的双螺杆挤出机中挤出造粒，挤出温度为170～190℃，得到纤维增强热塑性弹性体；
S3、将聚乙烯、多面体低聚倍半硅氧烷、巯基石墨烯、填料、抗氧剂在高速混合机中在1500r/min的转速下混合5min，再加入S3得到的纤维增强热塑性弹性体，同时加入润滑剂、脱模剂混匀，置于单螺旋挤出机，设置单螺旋挤出机的加料段温度为160～180℃，熔融段温度180～240℃，均化段温度200～260℃，模头温度170～220℃，熔融挤出成型，螺杆转速为50～150r/min，即得聚烯烃外层。
S4、通过成型机完成聚氨酯保温发泡层、耐热聚烯烃复合材料内层，最终加工完成新型全塑保温耐压输送管道。
本发明使用原理及有益效果为：
本发明的新型全塑保温耐压输送管道的韧性、力学强度、耐冲击性、阻燃性、耐老化性有了明显的提高，制备工艺简单，完全可用现有设备生产，无需更改设备，成本较低，生产效率高。本发明工艺制备的新型全塑保温耐压输送管道的韧性、力学强度、耐冲击性、阻燃性、耐老化性、耐氧化性等综合性能更好，具有广阔的应用前景。
本发明中，加入巯基石墨烯来提高材料的韧性、耐冲击性、拉伸强度、断裂伸长率、弯曲强度等力学性能。石墨烯是一种二维的sp2杂化纳米碳材料，分子呈蜂窝状排布，结构具有高度稳定性，强度高且韧性好可以弯曲，在石墨烯中引入巯基，使得石墨烯与聚烯烃材料的界面相容性增强，从而增强了材料的韧性、耐冲击性、拉伸强度、断裂伸长率、弯曲强度等力学性能以及耐老化性。
本发明中，加入多面体低聚倍半硅氧烷来提高材料的耐候性、耐冲击性、阻燃性、拉伸强度、断裂伸长率、弯曲强度等力学性能。多面体低聚倍半硅氧烷具有独特的纳米级尺寸以及硅氧硅的无机结构骨架，使得材料的拉伸强度、断裂伸长率、弯曲强度等力学性能能够显著提高，多面体低聚倍半硅氧烷分子是由硅氧键组成的具有良好的热稳定性的无机核，当多面体低聚倍半硅氧烷受热分解时形成一层二氧化硅膜，能够有效的阻止氧化过程的继续进行，从而提高了材料的阻燃性能和耐老化性能。
本发明采用长玻璃纤维搭配聚酯纤维或碳纤维来增强材料的拉伸强度、断裂伸长率、弯曲强度等力学性能。但是，聚酯纤维或碳纤维与聚乙烯、热塑性弹性体的界面相容性差并没有起到复合增强的作用，因此加入马来酸酐接枝热塑性弹性体来增强界面相容性，从而提高了材料的拉伸强度、断裂伸长率、弯曲强度。
本发明中，长玻璃纤维、聚酯纤维或碳纤维搭配多面体低聚倍半硅氧烷、巯基石墨烯等能够显著提高材料的韧性、力学强度、阻燃性、耐老化性，同时加入抗氧剂，从而提高了材料的耐氧化性能。
具体实施方式
下面将结合本发明实施例，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作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
本发明提出的一种新型全塑保温耐压输送管道，包括管体，管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，聚烯烃外层由以下重量份的成分组成：聚乙烯50份，热塑性弹性体30份，长玻璃纤维5份，聚酯纤维20份，巯基石墨烯3份，多面体低聚倍半硅氧烷5份，马来酸酐接枝热塑性弹性体5份，填料1份，润滑剂0.5份，抗氧剂1份，脱模剂0.5份；耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料；热塑性弹性体为聚烯烃弹性体或聚氨酯弹性体，填料为滑石粉、石墨、陶土、碳酸钙中的一种，抗氧剂为抗氧剂1010，润滑剂为脂肪酸酰胺，脱模剂为甲基硅油，长玻璃纤维长度为4～6mm，聚酯纤维长度为7mm；聚烯烃外层的厚度占管体的壁面厚度的20％，聚氨酯保温发泡层的厚度占管体的壁面厚度的50％，耐热聚烯烃复合材料内层的厚度占管体的壁面厚度的30％。
制备步骤如下：
S1、按照权利要求1所述的新型全塑保温耐压输送管道的配方，称取各个组分备用；
S2、将长玻璃纤维、聚酯纤维与热塑性弹性体、马来酸酐接枝热塑性弹性体加入高速混合机，在高速混合机中2000～2500r/min的转速下混合3～5min，将混合后的物料加入到同向啮合的双螺杆挤出机中挤出造粒，挤出温度为170～190℃，得到纤维增强热塑性弹性体；
S3、将聚乙烯、多面体低聚倍半硅氧烷、巯基石墨烯、填料、抗氧剂在高速混合机中在1500r/min的转速下混合5min，再加入S3得到的纤维增强热塑性弹性体，同时加入润滑剂、脱模剂混匀，置于单螺旋挤出机，设置单螺旋挤出机的加料段温度为160～180℃，熔融段温度180～240℃，均化段温度200～260℃，模头温度170～220℃，熔融挤出成型，螺杆转速为50～150r/min，即得聚烯烃外层。
S4、通过成型机完成聚氨酯保温发泡层、耐热聚烯烃复合材料内层，最终加工完成新型全塑保温耐压输送管道。
实施例二
本发明提出的一种新型全塑保温耐压输送管道，包括管体，管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，聚烯烃外层由以下重量份的成分组成：聚乙烯57份，热塑性弹性体40份，长玻璃纤维20份，聚酯纤维2份，巯基石墨烯4份，多面体低聚倍半硅氧烷7份，马来酸酐接枝热塑性弹性体6份，填料5份，润滑剂0.8份，抗氧剂1.6份，脱模剂0.7份；耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料；热塑性弹性体为聚烯烃弹性体或聚氨酯弹性体，填料为滑石粉、石墨、陶土、碳酸钙中的一种，抗氧剂为抗氧剂1010，润滑剂为脂肪酸酰胺，脱模剂为甲基硅油，长玻璃纤维长度为4～6mm，聚酯纤维长度为7mm；聚烯烃外层的厚度占管体的壁面厚度的20％，聚氨酯保温发泡层的厚度占管体的壁面厚度的50％，耐热聚烯烃复合材料内层的厚度占管体的壁面厚度的30％；制备步骤同实施例一。
实施例三
本发明提出的一种新型全塑保温耐压输送管道，包括管体，管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，聚烯烃外层由以下重量份的成分组成：聚乙烯60份，热塑性弹性体50份，长玻璃纤维30份，聚酯纤维1份，巯基石墨烯5份，多面体低聚倍半硅氧烷10份，马来酸酐接枝热塑性弹性体7份，填料10份，润滑剂1份，抗氧剂2份，脱模剂1份，耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料；热塑性弹性体为聚烯烃弹性体或聚氨酯弹性体，填料为滑石粉、石墨、陶土、碳酸钙中的一种，抗氧剂为抗氧剂1010，润滑剂为脂肪酸酰胺，脱模剂为甲基硅油，长玻璃纤维长度为4～6mm，聚酯纤维长度为7mm；聚烯烃外层的厚度占管体的壁面厚度的20％，聚氨酯保温发泡层的厚度占管体的壁面厚度的50％，耐热聚烯烃复合材料内层的厚度占管体的壁面厚度的30％，制备步骤同实施例一。
对比例一
一种输送管道，包括管体，管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，聚烯烃外层由以下重量份的成分组成：聚乙烯57份，热塑性弹性体40份，长玻璃纤维20份，聚酯纤维2份，多面体低聚倍半硅氧烷7份，马来酸酐接枝热塑性弹性体6份，填料5份，润滑剂0.8份，抗氧剂1.6份，脱模剂0.7份；耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料；热塑性弹性体为聚烯烃弹性体或聚氨酯弹性体，填料为滑石粉、石墨、陶土、碳酸钙中的一种，抗氧剂为抗氧剂1010，润滑剂为脂肪酸酰胺，脱模剂为甲基硅油，长玻璃纤维长度为4～6mm，聚酯纤维长度为6～7mm；聚烯烃外层的厚度占管体的壁面厚度的20％，聚氨酯保温发泡层的厚度占管体的壁面厚度的50％，耐热聚烯烃复合材料内层的厚度占管体的壁面厚度的30％；对应的将实施例一S3中巯基石墨烯删除，其余制备步骤同实施例一。
对比例二
一种输送管道，包括管体，管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，聚烯烃外层由以下重量份的成分组成：聚乙烯57份，热塑性弹性体40份，长玻璃纤维20份，聚酯纤维2份，巯基石墨烯4份，马来酸酐接枝热塑性弹性体6份，填料5份，润滑剂0.8份，抗氧剂1.6份，脱模剂0.7份；耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料；热塑性弹性体为聚烯烃弹性体或聚氨酯弹性体，填料为滑石粉、石墨、陶土、碳酸钙中的一种，抗氧剂为抗氧剂1010，润滑剂为脂肪酸酰胺，脱模剂为甲基硅油，长玻璃纤维长度为4～6mm，聚酯纤维长度为6～7mm；聚烯烃外层的厚度占管体的壁面厚度的20％，聚氨酯保温发泡层的厚度占管体的壁面厚度的50％，耐热聚烯烃复合材料内层的厚度占管体的壁面厚度的30％；对应的将实施例一S3中多面体低聚倍半硅氧烷删除，其余制备步骤同实施例一。
对比例三
一种输送管道，包括管体，管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，聚烯烃外层由以下重量份的成分组成：聚乙烯57份，热塑性弹性体40份；长玻璃纤维20份，聚酯纤维2份，马来酸酐接枝热塑性弹性体6份，填料5份，润滑剂0.8份，抗氧剂1.6份，脱模剂0.7份；耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料，热塑性弹性体为聚烯烃弹性体或聚氨酯弹性体，填料为滑石粉、石墨、陶土、碳酸钙中的一种，抗氧剂为抗氧剂1010，润滑剂为脂肪酸酰胺，脱模剂为甲基硅油，长玻璃纤维长度为4～6mm，聚酯纤维长度为6～7mm，聚烯烃外层的厚度占管体的壁面厚度的20％，聚氨酯保温发泡层的厚度占管体的壁面厚度的50％，耐热聚烯烃复合材料内层的厚度占管体的壁面厚度的30％，对应的将实施例一S3中巯基石墨烯、多面体低聚倍半硅氧烷删除，其余制备步骤同实施例一。
对比例四
一种输送管道，包括管体，管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，聚烯烃外层由以下重量份的成分组成：聚乙烯57份，热塑性弹性体40份，长玻璃纤维20份，聚酯纤维2份，巯基石墨烯4份，多面体低聚倍半硅氧烷7份，填料5份，润滑剂0.8份，抗氧剂1.6份，脱模剂0.7份；耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料；填料为滑石粉、石墨、陶土、碳酸钙中的一种，抗氧剂为抗氧剂1010，润滑剂为脂肪酸酰胺，脱模剂为甲基硅油，长玻璃纤维长度为4～6mm，聚酯纤维长度为6～7mm；聚烯烃外层的厚度占管体的壁面厚度的20％，聚氨酯保温发泡层的厚度占管体的壁面厚度的50％，耐热聚烯烃复合材料内层的厚度占管体的壁面厚度的30％；对应的将实施例一S2中马来酸酐接枝热塑性弹性体删除，其余制备步骤同实施例一。
对比例五
一种输送管道，包括管体，管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，聚烯烃外层由以下重量份的成分组成：聚乙烯57份，热塑性弹性体40份，长玻璃纤维20份，巯基石墨烯4份，多面体低聚倍半硅氧烷7份，填料5份，润滑剂0.8份，抗氧剂1.6份，脱模剂0.7份；耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料；填料为滑石粉、石墨、陶土、碳酸钙中的一种，抗氧剂为抗氧剂1010，润滑剂为脂肪酸酰胺，脱模剂为甲基硅油，长玻璃纤维长度为4～6mm；聚烯烃外层的厚度占管体的壁面厚度的20％，聚氨酯保温发泡层的厚度占管体的壁面厚度的50％，耐热聚烯烃复合材料内层的厚度占管体的壁面厚度的30％；对应的将实施例一S2删除，其余制备步骤同实施例一。
对比例六
一种输送管道，包括管体，管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，聚烯烃外层由以下重量份的成分组成：聚乙烯57份，热塑性弹性体40份，填料5份，润滑剂0.8份，抗氧剂1.6份，脱模剂0.7份；耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料；填料为滑石粉、石墨、陶土、碳酸钙中的一种，抗氧剂为抗氧剂1010，润滑剂为脂肪酸酰胺，脱模剂为甲基硅油；聚烯烃外层的厚度占管体的壁面厚度的20％，聚氨酯保温发泡层的厚度占管体的壁面厚度的50％，耐热聚烯烃复合材料内层的厚度占管体的壁面厚度的30％；对应的将实施例一S2删除，同时将S3中巯基石墨烯、多面体低聚倍半硅氧烷删除，其余制备步骤同实施例一。
将上述实施例以及对比例进行拉伸强度、冲击强度、断裂伸长率、弯曲强度、阻燃等级、耐老化性进行测定，测定方法如下：
1、拉伸强度测定：按GB/T 1447-2005玻璃纤维增强塑料拉伸性能试验方法进行测试，拉伸速率为50mm/min；
2、冲击强度测定：悬臂梁缺口冲击强度按GB/T 1843-2008进行测试，摆锤规格为2.75J，试样V形缺口；
3、断裂伸长率测定：按GB/T 1447-2005玻璃纤维增强塑料拉伸性能试验方法进行测试，拉伸速率为50mm/min；
4、弯曲强度测定：按GB/T 9341-2000塑料弯曲的测定试验方法进行测试，样品尺寸为长80mm，宽10mm，厚度为4mm，试验速度为5mm/min；
5、阻燃等级测定：按美国UL94标准进行测试，样品尺寸为长27mm，宽12.7mm，厚度为1.6mm；
6、耐老化性：按美国ASTM G53标准，在UV-B荧光紫外灯照射下，人工加速老化144小时后测量拉伸强度，计算拉伸强度保持率；
测试结果如下表所示：
表1实施例与对比例性能测试表
通过表中数据可以看出，本发明实施例得到的新型全塑保温耐压输送管道较对比例输送管道的韧性、力学强度、耐冲击性、阻燃性、耐老化性有了明显的提高，制备工艺简单，完全可用现有设备生产，无需更改设备，成本较低，生产效率高。因此，本发明工艺制备的新型全塑保温耐压输送管道的韧性、力学强度、耐冲击性、阻燃性、耐老化性、耐氧化性等综合性能更好，具有广阔的应用前景。
通过表中实施例二与对比例一、对比例三数据可以看出，加入巯基石墨烯提高了材料的韧性、耐冲击性、拉伸强度、断裂伸长率、弯曲强度等力学性能。石墨烯是一种二维的sp2杂化纳米碳材料，分子呈蜂窝状排布，结构具有高度稳定性，强度高且韧性好可以弯曲，在石墨烯中引入巯基，使得石墨烯与聚烯烃材料的界面相容性增强，从而增强了材料的韧性、耐冲击性、拉伸强度、断裂伸长率、弯曲强度等力学性能以及耐老化性。
通过表中实施例二与对比例二、对比例三数据可以看出，加入多面体低聚倍半硅氧烷提高了材料的耐候性、耐冲击性、阻燃性、拉伸强度、断裂伸长率、弯曲强度等力学性能。多面体低聚倍半硅氧烷具有独特的纳米级尺寸以及硅氧硅的无机结构骨架，使得材料的拉伸强度、断裂伸长率、弯曲强度等力学性能能够显著提高，多面体低聚倍半硅氧烷分子是由硅氧键组成的具有良好的热稳定性的无机核，当多面体低聚倍半硅氧烷受热分解时形成一层二氧化硅膜，能够有效的阻止氧化过程的继续进行，从而提高了材料的阻燃性能和耐老化性能。
本发明采用长玻璃纤维搭配聚酯纤维或碳纤维来增强材料的拉伸强度、断裂伸长率、弯曲强度等力学性能。通过表中实施例二与对比例四数据可以看出聚酯纤维与聚乙烯、热塑性弹性体的界面相容性差并没有起到复合增强的作用，因此加入马来酸酐接枝热塑性弹性体来增强界面相容性，从而提高了材料的拉伸强度、断裂伸长率、弯曲强度。
通过表中实施例二与对比例六数据可以看出，长玻璃纤维与聚酯纤维或碳纤维搭配多面体低聚倍半硅氧烷、巯基石墨烯等能够显著提高材料的韧性、力学强度、阻燃性、耐老化性，同时加入抗氧剂，从而提高了材料的耐氧化性能。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (8)

1.一种新型全塑保温耐压输送管道，其特征在于，包括管体，所述管体的壁面从外到内依次为聚烯烃外层、聚氨酯保温发泡层、耐热聚烯烃复合材料内层，所述聚烯烃外层由以下重量份的成分组成：聚乙烯50～60份，热塑性弹性体30～50份，长玻璃纤维5～30份，聚酯纤维或碳纤维1～20份，巯基石墨烯3～5份，多面体低聚倍半硅氧烷5～10份，马来酸酐接枝热塑性弹性体5～7份，填料1～10份，润滑剂0.5～1份，抗氧剂1～2份，脱模剂0.5～1份；所述耐热聚烯烃复合材料内层为长玻璃纤维增强聚乙烯复合材料。
2.根据权利要求1所述的一种新型全塑保温耐压输送管道，其特征在于，所述聚烯烃外层由以下重量份的成分组成：聚乙烯57份，热塑性弹性体40份，长玻璃纤维20份，聚酯纤维或碳纤维2份，巯基石墨烯4份，多面体低聚倍半硅氧烷7份马来酸酐接枝热塑性弹性体6份，填料5份，润滑剂0.8份，抗氧剂1.6份，脱模剂0.7份。
3.根据权利要求1所述的一种新型全塑保温耐压输送管道，其特征在于，所述热塑性弹性体为聚烯烃弹性体或聚氨酯弹性体。
4.根据权利要求1所述的一种新型全塑保温耐压输送管道，其特征在于，所述填料为滑石粉、石墨、陶土、碳酸钙中的一种。
5.根据权利要求1所述的一种新型全塑保温耐压输送管道，其特征在于，所述抗氧剂为抗氧剂1010，所述润滑剂为脂肪酸酰胺，所述脱模剂为甲基硅油。
6.根据权利要求1所述的一种新型全塑保温耐压输送管道，其特征在于，所述长玻璃纤维长度为4～6mm，所述聚酯纤维或碳纤维长度为6～7mm。
7.根据权利要求1所述的一种新型全塑保温耐压输送管道，其特征在于，所述聚烯烃外层的厚度占管体的壁面厚度的5％～40％，所述聚氨酯保温发泡层的厚度占管体的壁面厚度的20％～70％，所述耐热聚烯烃复合材料内层的厚度占管体的壁面厚度的10％～40％。
8.一种新型全塑保温耐压输送管道，其特征在于，包括以下步骤制备：
S1、按照权利要求1所述的新型全塑保温耐压输送管道的配方，称取各个组分备用；
S2、将长玻璃纤维、聚酯纤维或碳纤维与热塑性弹性体、马来酸酐接枝热塑性弹性体加入高速混合机，在高速混合机中2000～2500r/min的转速下混合3～5min，将混合后的物料加入到同向啮合的双螺杆挤出机中挤出造粒，挤出温度为170～190℃，得到纤维增强热塑性弹性体；
S3、将聚乙烯、多面体低聚倍半硅氧烷、巯基石墨烯、填料、抗氧剂在高速混合机中在1500r/min的转速下混合5min，再加入S3得到的纤维增强热塑性弹性体，同时加入润滑剂、脱模剂混匀，置于单螺旋挤出机，设置单螺旋挤出机的加料段温度为160～180℃，熔融段温度180～240℃，均化段温度200～260℃，模头温度170～220℃，熔融挤出成型，螺杆转速为50～150r/min，即得聚烯烃外层；
S4、通过成型机完成聚氨酯保温发泡层、耐热聚烯烃复合材料内层，最终加工完成新型全塑保温耐压输送管道。
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