CN107477265A - 一种大口径加筋管材及其制备方法 - Google Patents
一种大口径加筋管材及其制备方法 Download PDFInfo
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- CN107477265A CN107477265A CN201710806997.3A CN201710806997A CN107477265A CN 107477265 A CN107477265 A CN 107477265A CN 201710806997 A CN201710806997 A CN 201710806997A CN 107477265 A CN107477265 A CN 107477265A
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Abstract
本发明公开了一种大口径加筋管材,其特征在于:包括内层和外层,所述内层包括以下重量份的组分:PVC 85‑100份,钙锌稳定剂3‑8份,硬脂酸0.1‑1.0份,聚乙烯蜡0.1‑1.0份,PMMA 5‑35份,颜料0.5‑5.0份,消烟剂5‑50份,ACR 1‑15份,改性剂1‑15份,刚性母料5‑30份,所述外层包括以下重量份的组分:ABS 85‑100份,PVC 5‑25份,PC 5‑30份,增容剂1‑15份,钙锌稳定剂1.0‑2.0份,聚乙烯蜡0.3‑1.5份,阻燃剂15‑50份,抗氧剂0.5‑5份,抗冲击改性剂1‑25份,玻璃纤维5‑30份,颜料0.5‑5份。可以加工小口径管材和大口径管材,能够生产的产品直径范围是800~6000mm,可以用于排水排污管道,并且大口径管材的环刚度可以达到SN25,相对于现有技术所制备的大口径管材在环钢度上有很多的提高,具体是在同等重量比现有大口径排水排污管道提高环刚度100‑300%以上。
Description
技术领域
本发明涉及管材的技术领域,具体的说,是指一种大口径加筋管材及其制备方法。
背景技术
管材就是用于做管件的材料。不同的管件要用不同的管材,管材的好坏直接决定了管件的质量。建筑工程、电厂、化工厂等多用此类管材,有执行标准 GB/T5310,用于高压锅炉:有执行标准GB/T8163,输送流体用无缝钢管:有执行标准GB3087,低压锅炉用无缝钢管:有执行标准GB/T9948,石油裂化用无缝钢管:有执行标准GB/T14976,流体输送用不锈钢无缝钢管,常见材质有合金(15CrMo、12Cr1MoV)碳钢(10#、20#、45#)不锈钢(304、316)。
而当前大口径排水排污管道最大的只有克拉管、PE、钢带缠绕管、PE双平壁缠绕能够做到直径3000mm的管道,产品重量重、成本很高,环刚度最多做到12.5KN/m2等技术问题。
因此有必要设计一种能够降低制造成本、产品质量轻的技术方案。
发明内容
本发明提供一种大口径加筋管材及其制备方法,用于解决现有技术中产品重量重、成本很高的等技术问题。
为了解决上述技术问题,达到降低制造成本、产品质量轻的有益效果,本发明通过以下技术方案实现:
所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
为了更好的实现本发明,进一步的,增容剂为乙烯‐醋酸乙烯共聚物,甲基丙烯酸缩水甘油酯辐射接枝物,苯乙烯‐马来酸酐共聚物,乙烯‐丙烯共聚物,丙烯腈‐丁二烯‐苯乙烯接枝物,聚丙烯‐已内酯接枝共聚物,聚丙烯‐苯乙烯接枝共聚物,马来酸酐接枝共聚物,大分子硅烷偶联剂,大分子铝钛偶联剂,大分子钛酸酯偶联剂,聚丙烯‐甲基丙烯酸酯接枝共聚物,聚丙烯‐丙烯腈接枝共聚物,氯甲基苯乙烯接枝共聚物,丙烯酸环氧酯接枝共聚物,氯化聚乙烯、顺丁烯二酸酐接枝共聚物中的一种或者两种以上。
为了更好的实现本发明,进一步的,所述的抗氧剂牌号为1076、1010、168 中的一种或者两种以上。
为了更好的实现本发明,进一步的,所述的阻燃剂为红磷、三氧化二铝、氢氧化铝、氢氧化镁中一种或两种以上。
为了更好的实现本发明,进一步的,所述消烟剂为八钼酸铵、硼酸锌一种或者两种以上。
为了更好的实现本发明,进一步的,所述抗冲击改性剂为氯化聚乙烯、三元乙丙橡胶、乙烯‐醋酸乙烯共聚物、丙烯腈‐丁二烯‐苯乙烯共聚物,甲基丙烯酸酯‐丁二烯‐苯乙烯共聚物、丙烯酸树脂、聚甲基丙烯酸甲酯树脂、丁晴橡胶、丁苯橡胶中的一种或者两种以上。
为了更好的实现本发明,进一步的,所述颜料为钛白粉、群青、酞青蓝、炭黑中的一种或者两种以上。
为了更好的实现本发明,进一步的,所述刚性材料为活性硫酸钡、滑石粉、玻璃纤维、云母、石英砂、碳酸钙中的一种或者两种以上。
为了更好的实现本发明,进一步的,S1:按重量份称取内层的以下组分: PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌7分钟,温度达到95℃:
S2:向步骤S1中加入PMMA,温度达到110℃时,停止搅拌,并转入至冷却机中,将温度冷却至28℃,得到内层料,备用;
S3:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌5分钟、温度达到95℃;
S4:向步骤S3中加入ABS,并继续搅拌,当温度达到105℃时,停止搅拌,并转入至冷却机中,将温度冷却到25—35℃,得到外层料,备用;
S5:将步骤S4中得到的外层料加入注塑机中,将注塑机上的加工温度控制到140-265℃、注塑速度控制在30-120cm3/s,注塑压力80-160bar,保压压力40-80bar,然后将外层料注入模具的外层,再将步骤S2中得到的内层料加入注塑机,将注塑温度控制在140-250℃,注塑速度20-100cm3/s,注塑压力60-100bar,保压压力40-100bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间5-120分钟,所述外层料加入模具时间早于内层料加入模具时间5-60秒。
为了更好的实现本发明,进一步的,S5:将步骤S4中得到的外层料加入注塑机中,将注塑机上的加工温度控制到190℃、注塑速度控制在35cm3/s,注塑压力80bar,保压压力60bar,然后将外层料注入模具的外层,再将步骤S2 中得到的内层料加入注塑机,将注塑温度控制在185℃,注塑速度30cm3/s,注塑压力70bar,保压压力30bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间6分钟,所述外层料加入注塑机的加入时间早于内层料加入注塑机的30秒。
上述所制得的大口径管材分为内层和外层,外层为纵向筋,其中外层的原料配方是以ABS为主,并加入PVC做改性剂,不仅可以提管材的高阻燃性能,当减少阻燃剂用量时,也可以达到很好的阻燃效果,或者说使用便宜的阻燃剂也可以达到很好的阻燃效果,而且PVC中氯原子为天然抗氧化材料,能够提高ABS的抗氧化性能,延长使用寿命,PC工程塑料加入进一步提高管材刚性;
其中内层的原料配方中是以PVC为主,该PVC不仅可以降低成本,本身具有阻燃性能,加热消烟剂同时具有阻燃消烟功能,燃烧时发烟量比现有PVC 管道降低100-300%,有效解决火灾发生时,因为烟雾大窒息不能快速逃生和抢修的严重问题;
本制备方法中,在将外层料和内层料注入模具中,采用的是注塑机,其中外层是竖筋,采用垂直于管道方向注塑,注塑时间比内层注塑必须提前5-60 秒,使得外层注塑压力大于内层注塑压力10-50bar,确保PC工程塑料全部注塑到竖筋上,并确保PC工程塑料刚度优势充分利用;其中ABS、PMMA水份超过0.06%时需要干燥处理;在注塑模具生产前需要提前加热2-4小时,温度在80-120℃;
生产时冷却时间超过30分钟的产品,每模注塑完成后注塑机机筒、螺杆内芯自动降温,相应温度自动降温到150℃恒温,等生产第二模开模前20分钟开始自动提温加热,自动加热20分钟,刚好冷却时间到了,开始达到生产温度,开始二次连续生产,确保材料不因为生产大口径管材冷却时间长,料在机筒内加热时间过长,老化降解或分解不能连续生产,同时也影响产品性能。
本发明与现有技术相比,具有以下优点及有益效果:
(1)本发明通过上述配方和制备方法所得的大口径管材产品具有抗冲击性能好、阻燃性能好,耐候性好,耐蠕变性能好等;
(2)本发明通过上述配方和制备方法,可以加工小口径管材和大口径管材,能够生产的产品直径范围是800~6000mm,可以用于排水排污管道,也可以用作低下管廊预制件,并且大口径管材的环刚度可以达到SN25,相对于现有技术所制备的大口径管材在环钢度上有很多的提高,具体是在同等重量比现有大口径排水排污管道提高环刚度100-300%以上;
(3)本发明通过上述配方和制备方法,上述所制得的大口径管材的管材重量比现有管材重量减轻10-30%,环刚度还提高30-50%。与PE钢带缠绕管相比本发明采用全塑管材,具有很好的防腐蚀防分裂效果。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述,本发明的其他特征、目的和优点将会变得更为明显:
图1为本发明大口径加筋管材的结构示意图;
其中:1—外层、2—内层。
具体实施方式
下面结合实施例对本发明作进一步地详细说明,但本发明的实施方式不限于此。
实施例1:
一种大口径加筋管材及其制备方法,如图1所示,
所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
S1:按重量份称取内层的以下组分:PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌7分钟,温度达到95℃:
S2:向步骤S1中加入PMMA,温度达到110℃时,停止搅拌,并转入至冷却机中,将温度冷却至28℃,得到内层料,备用;
S3:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌5分钟、温度达到95℃;
S4:向步骤S3中加入ABS,并继续搅拌,当温度达到105℃时,停止搅拌,并转入至冷却机中,将温度冷却到25℃,得到外层料,备用;
S5:将步骤S4中得到的外层料加入注塑机中,将注塑机上的加工温度控制到140℃、注塑速度控制在30cm3/s,注塑压力80bar,保压压力40bar,然后将外层料注入模具的外层,再将步骤S2中得到的内层料加入注塑机,将注塑温度控制在140℃,注塑速度20cm3/s,注塑压力60bar,保压压力40bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间5 分钟,所述外层料加入模具时间早于内层料加入模具时间5秒;得到产品的直接有800mm,3000mm,5000mm等。
实施例2:
一种大口径加筋管材及其制备方法,如图1所示,
所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
S1:按重量份称取内层的以下组分:PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌7分钟,温度达到95℃:
S2:向步骤S1中加入PMMA,温度达到110℃时,停止搅拌,并转入至冷却机中,将温度冷却至28℃,得到内层料,备用;
S3:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌5分钟、温度达到95℃;
S4:向步骤S3中加入ABS,并继续搅拌,当温度达到105℃时,停止搅拌,并转入至冷却机中,将温度冷却到35℃,得到外层料,备用;
S5:将步骤S4中得到的外层料加入注塑机中,将注塑机上的加工温度控制到265℃、注塑速度控制在120cm3/s,注塑压力160bar,保压压力80bar,然后将外层料注入模具的外层,再将步骤S2中得到的内层料加入注塑机,将注塑温度控制在250℃,注塑速度100cm3/s,注塑压力100bar,保压压力100bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间 120分钟,所述外层料加入模具时间早于内层料加入模具时间60秒;得到产品的直接有800mm,3000mm,5000mm等。
实施例3:
一种大口径加筋管材及其制备方法,如图1所示,
所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
外层配方中所述增容剂10份是马来酸酐接枝共聚物5份和丙烯腈‐丁二烯‐苯乙烯接枝物5份;
所述阻燃剂是三氧化二铝15份和氢氧化镁15份;
所述抗氧剂为抗氧剂牌号1010;
所述颜料酞青蓝0.5份;
内层配方中所述颜料为钛白粉0.5份;消烟剂47份为八钼酸铵12份和硼酸锌 35份;改性剂为氯化聚乙烯6份;刚性材料5份为石英砂。
S1:按重量份称取内层的以下组分:PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌7分钟,温度达到95℃:
S2:向步骤S1中加入PMMA,温度达到110℃时,停止搅拌,并转入至冷却机中,将温度冷却至28℃,得到内层料,备用;
S3:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌5分钟、温度达到95℃;
S4:向步骤S3中加入ABS,并继续搅拌,当温度达到105℃时,停止搅拌,并转入至冷却机中,将温度冷却到30℃,得到外层料,备用;
S5:将步骤S4中得到的外层料加入注塑机中,将注塑机上的加工温度控制到225℃、注塑速度控制在90cm3/s,注塑压力85bar,保压压力70bar,然后将外层料注入模具的外层,再将步骤S2中得到的内层料加入注塑机,将注塑温度控制在180℃,注塑速度85cm3/s,注塑压力95bar,保压压力65bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间9 分钟,所述外层料加入模具时间早于内层料加入模具时间10秒;得到产品的直接有800mm,3000mm,5000mm等。
实施例4:
一种大口径加筋管材及其制备方法,如图1所示,
所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
所述外层配方中的增溶剂11份为马来酸酐接枝共聚物6份和丙烯腈‐丁二烯‐苯乙烯接枝物5份;
阻燃剂30份为三氧化二铝15份和氢氧化镁15份;
改性剂10份为三元乙丙橡胶10份;
颜料0.5份为酞青蓝0.5份;
抗氧剂为牌号为抗氧剂1010;
所述内层配方中颜料0.5份为钛白粉;
消烟剂40份为八钼酸铵15份和硼酸锌25份;
改性剂8份为氯化聚乙烯8份;
刚性材料8份为活性石英砂8份;
S1:按重量份称取内层的以下组分:PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌7分钟,温度达到95℃:
S2:向步骤S1中加入PMMA,温度达到110℃时,停止搅拌,并转入至冷却机中,将温度冷却至28℃,得到内层料,备用;
S3:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌5分钟、温度达到95℃;
S4:向步骤S3中加入ABS,并继续搅拌,当温度达到105℃时,停止搅拌,并转入至冷却机中,将温度冷却到29℃,得到外层料,备用;
S5:将步骤S4中得到的外层料加入注塑机中,将注塑机上的加工温度控制到165℃、注塑速度控制在90cm3/s,注塑压力90bar,保压压力60bar,然后将外层料注入模具的外层,再将步骤S2中得到的内层料加入注塑机,将注塑温度控制在150℃,注塑速度80cm3/s,注塑压力90bar,保压压力70bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间8 分钟,所述外层料加入模具时间早于内层料加入模具时间15秒;得到产品的直接有800mm,3000mm,5000mm等。
实施例5:
一种大口径加筋管材及其制备方法,如图1所示,
所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
所述内层配方中:颜料0.5份为钛白粉;
消烟剂40份为八钼酸铵15份和硼酸锌25份;
改性剂10份为氯化聚乙烯8.0份和乙烯-醋酸乙烯高聚物2份;
刚性材料15份为石英砂3.0份;
所述外层配方中:增溶剂12份为马来酸酐接枝共聚物6份、丙烯腈‐丁二烯‐苯乙烯接枝物5份和大分子铝钛偶联剂1.0份;
阻燃剂32份三氧化二铝16和氢氧化镁16份;
抗冲击改性剂10份为三元乙丙橡胶10份;
颜料0.5份为酞青蓝0.5份;
S1:按重量份称取内层的以下组分:PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌7分钟,温度达到95℃:
S2:向步骤S1中加入PMMA,温度达到110℃时,停止搅拌,并转入至冷却机中,将温度冷却至28℃,得到内层料,备用;
S3:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌5分钟、温度达到95℃;
S4:向步骤S3中加入ABS,并继续搅拌,当温度达到105℃时,停止搅拌,并转入至冷却机中,将温度冷却到30℃,得到外层料,备用;
S5:将步骤S4中得到的外层料加入注塑机中,将注塑机上的加工温度控制到190℃、注塑速度控制在35cm3/s,注塑压力80bar,保压压力60bar,然后将外层料注入模具的外层,再将步骤S2中得到的内层料加入注塑机,将注塑温度控制在185℃,注塑速度30cm3/s,注塑压力70bar,保压压力30bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间6 分钟,所述外层料加入注塑机的加入时间早于内层料加入注塑机的30秒;得到产品的直接有800mm,3000mm,5000mm等。
对比例1:
一种大口径加筋管材及其制备方法,如图1所示,所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
所述内层配方中:颜料0.5份为钛白粉,消烟剂35份为八钼酸铵15份和硼酸锌20份,改性剂12份为氯化聚乙烯8份和乙烯-醋酸乙烯高聚物4份,刚性材料15份为石英砂15份;
所述外层配方中:增溶剂15份为马来酸酐接枝共聚物8份、丙烯腈‐丁二烯‐苯乙烯接枝物3份和大分子铝钛偶联剂4份;
阻燃剂45份三氧化二铝20和氢氧化镁25份;
抗冲击改性剂10份为三元乙丙橡胶10份;
颜料0.5份为酞青蓝0.5份;
S1:按重量份称取内层的以下组分:PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌7分钟,温度达到110℃时,停止搅拌,并转入至冷却机中,将温度冷却至28℃,得到内层料,备用:
S2:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌5分钟、当温度达到105℃时,停止搅拌,并转入至冷却机中,将温度冷却到30℃,得到外层料,备用;
S3:将步骤S2中得到的外层料加入注塑机中,将注塑机上的加工温度控制到195℃、注塑速度控制在72cm3/s,注塑压力120bar,保压压力70bar,然后将外层料注入模具的外层,再将步骤S1中得到的内层料加入注塑机,将注塑温度控制在170℃,注塑速度70cm3/s,注塑压力85bar,保压压力75bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间11 分钟,所述外层料加入模具时间早于内层料加入模具时间25秒;得到产品的直接有800mm,3000mm,5000mm等。
对比例2:
一种大口径加筋管材及其制备方法,如图1所示,所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
所述内层配方中:颜料0.5份为钛白粉;
消烟剂40份为八钼酸铵15份和硼酸锌25份;
改性剂10份为氯化聚乙烯8.0份和乙烯-醋酸乙烯高聚物2份;
刚性材料15份为石英砂15份;
所述外层配方中:增溶剂12份为马来酸酐接枝共聚物6份、丙烯腈‐丁二烯‐苯乙烯接枝物5份和大分子铝钛偶联剂1.0份;
阻燃剂30份三氧化二铝15和氢氧化镁15份;
抗冲击改性剂8份为三元乙丙橡胶8份;
颜料0.5份为酞青蓝0.5份;
S1:按重量份称取内层的以下组分:PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌7分钟,温度达到110℃时,停止搅拌,并转入至冷却机中,将温度冷却至28℃,得到内层料,备用:
S2:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌5分钟、温度达到95℃;
S3:向步骤S3中加入ABS,并继续搅拌,当温度达到105℃时,停止搅拌,并转入至冷却机中,将温度冷却到27℃,得到外层料,备用;
S4:将步骤S3中得到的外层料加入注塑机中,将注塑机上的加工温度控制到195℃、注塑速度控制在90cm3/s,注塑压力120bar,保压压力60bar,然后将外层料注入模具的外层,再将步骤S1中得到的内层料加入注塑机,将注塑温度控制在150℃,注塑速度60cm3/s,注塑压力90bar,保压压力70bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间8 分钟,所述外层料加入模具时间早于内层料加入模具时间15秒;得到产品的直接有800mm,3000mm,5000mm等。
对比例3:
一种大口径加筋管材及其制备方法,如图1所示,所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
所述内层配方中:颜料0.5份为钛白粉;
消烟剂30份为八钼酸铵15份和硼酸锌15份;
改性剂10份为氯化聚乙烯8.0份和乙烯-醋酸乙烯高聚物2份;
刚性材料15份为石英砂15份;
所述外层配方中:增溶剂10份为马来酸酐接枝共聚物5份、丙烯腈‐丁二烯‐苯乙烯接枝物5份和大分子铝钛偶联剂1.0份;
阻燃剂32份三氧化二铝16和氢氧化镁16份;
抗冲击改性剂10份为三元乙丙橡胶10份;
颜料0.5份为酞青蓝0.5份;
S1:按重量份称取内层的以下组分:PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌7分钟,温度达到95℃:
S2:向步骤S1中加入PMMA,温度达到110℃时,停止搅拌,并转入至冷却机中,将温度冷却至28℃,得到内层料,备用;
S3:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌5分钟、当温度达到105℃时,停止搅拌,并转入至冷却机中,将温度冷却到30℃,得到外层料,备用;
S4:将步骤S3中得到的外层料加入注塑机中,将注塑机上的加工温度控制到180℃、注塑速度控制在90cm3/s,注塑压力90bar,保压压力70bar,然后将外层料注入模具的外层,再将步骤S2中得到的内层料加入注塑机,将注塑温度控制在180℃,注塑速度80cm3/s,注塑压力80bar,保压压力70bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间7 分钟,所述外层料加入模具时间早于内层料加入模具时间12秒;得到产品的直接有800mm,3000mm,5000mm等。
对比例4:
一种大口径加筋管材及其制备方法,如图1所示,所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
S1:按重量份称取内层的以下组分:PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌5分钟,温度达到85℃:
S2:向步骤S1中加入PMMA,温度达到100℃时,停止搅拌,并转入至冷却机中,将温度冷却至20℃,得到内层料,备用;
S3:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌4分钟、温度达到65℃;
S4:向步骤S3中加入ABS,并继续搅拌,当温度达到75℃时,停止搅拌,并转入至冷却机中,将温度冷却到15℃,得到外层料,备用;
S5:将步骤S4中得到的外层料加入注塑机中,将注塑机上的加工温度控制到120℃、注塑速度控制在100cm3/s,注塑压力70bar,保压压力45bar,然后将外层料注入模具的外层,再将步骤S2中得到的内层料加入注塑机,将注塑温度控制在120℃,注塑速度100cm3/s,注塑压力30bar,保压压力20bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间1 分钟,所述外层料加入模具时间早于内层料加入模具时间1秒;得到产品的直接有800mm,3000mm,5000mm等。
对比例5:
一种大口径加筋管材及其制备方法,如图1所示,所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
S1:按重量份称取内层的以下组分:PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌2分钟,温度达到120℃:
S2:向步骤S1中加入PMMA,温度达到130℃时,停止搅拌,并转入至冷却机中,将温度冷却至36℃,得到内层料,备用;
S3:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌20分钟、温度达到130℃;
S4:向步骤S3中加入ABS,并继续搅拌,当温度达到150℃时,停止搅拌,并转入至冷却机中,将温度冷却到60℃,得到外层料,备用;
S5:将步骤S4中得到的外层料加入注塑机中,将注塑机上的加工温度控制到300℃、注塑速度控制在150cm3/s,注塑压力170bar,保压压力90bar,然后将外层料注入模具的外层,再将步骤S2中得到的内层料加入注塑机,将注塑温度控制在300℃,注塑速度150cm3/s,注塑压力125bar,保压压力150bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间20分钟,所述外层料加入模具时间早于内层料加入模具时间80秒;得到产品的直接有800mm,3000mm,5000mm等。
实验结果对比:
1.同时生产直接为800mm的大口径加筋管材,上述实验例和对比例的实验数据结果对比如下表:
2.同时生产直接为3000mm的大口径加筋管材,上述实验例和对比例的实验数据结果对比如下表:
3.同时生产直接为5000mm的大口径加筋管材,上述实验例和对比例的实验数据结果对比如下表:
4.实验例1—实验例5生产直径为800mm的大口径加筋管材与现有生产的克拉管、钢带管和PE双平壁缠绕管进行对比,对比如下表:
5.实验例1—实验例5生产直径为3000mm的大口径加筋管材与现有生产的克拉管、钢带管和PE双平壁缠绕管进行对比,对比如下表:
6.实验例1—实验例5生产直径为5000mm的大口径加筋管材与现有生产的克拉管、钢带管和PE双平壁缠绕管进行对比,对比如下表:
尽管已经示出和描述了本发明的实施例,本领域的普通技术人员可以理解为:在不脱离本发明的原理和宗旨下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由权利要求及其等同物限定。
Claims (10)
1.一种大口径加筋管材,其特征在于:包括内层和外层,
所述内层包括以下重量份的组分:
所述外层包括以下重量份的组分:
2.根据权利要求1所述的大口径加筋管材,其特征在于:所述增容剂为乙烯‐醋酸乙烯共聚物,甲基丙烯酸缩水甘油酯辐射接枝物,苯乙烯‐马来酸酐共聚物,乙烯‐丙烯共聚物,丙烯腈‐丁二烯‐苯乙烯接枝物,聚丙烯‐已内酯接枝共聚物,聚丙烯‐苯乙烯接枝共聚物,马来酸酐接枝共聚物,大分子硅烷偶联剂,大分子铝钛偶联剂,大分子钛酸酯偶联剂,聚丙烯‐甲基丙烯酸酯接枝共聚物,聚丙烯‐丙烯腈接枝共聚物,氯甲基苯乙烯接枝共聚物,丙烯酸环氧酯接枝共聚物,氯化聚乙烯、顺丁烯二酸酐接枝共聚物中的一种或者两种以上。
3.根据权利要求1所述的大口径加筋管材,其特征在于:所述的抗氧剂牌号为1076、1010、168中的一种或者两种以上。
4.根据权利要求1所述的大口径加筋管材,其特征在于:所述的阻燃剂为红磷、三氧化二铝、氢氧化铝、氢氧化镁中一种或两种以上。
5.根据权利要求1所述的大口径加筋管材,其特征在于:所述消烟剂为八钼酸铵、硼酸锌一种或者两种以上。
6.根据权利要求1所述的大口径加筋管材,其特征在于:所述抗冲击改性剂为氯化聚乙烯、三元乙丙橡胶、乙烯‐醋酸乙烯共聚物、丙烯腈‐丁二烯‐苯乙烯共聚物,甲基丙烯酸酯‐丁二烯‐苯乙烯共聚物、丙烯酸树脂、聚甲基丙烯酸甲酯树脂、丁晴橡胶、丁苯橡胶中的一种或者两种以上。
7.根据权利要求1所述的大口径加筋管材,其特征在于:所述颜料为钛白粉、群青、酞青蓝、炭黑中的一种或者两种以上。
8.根据权利要求1所述的大口径加筋管材,其特征在于:所述刚性材料为活性硫酸钡、滑石粉、玻璃纤维、云母、石英砂、碳酸钙中的一种或者两种以上。
9.根据权利要求1所述的大口径加筋管材的制备方法,其特征在于:
S1:按重量份称取内层的以下组分:PVC、钙锌稳定剂、硬脂酸、聚乙烯蜡、颜料、消烟剂、ACR、改性剂、刚性母料均加入高速搅拌机中搅拌7分钟,温度达到95℃:
S2:向步骤S1中加入PMMA,温度达到110℃时,停止搅拌,并转入至冷却机中,将温度冷却至28℃,得到内层料,备用;
S3:按重量份称取外层的以下组分:PVC、PC、增容剂、钙锌稳定剂、聚乙烯蜡、阻燃剂、抗氧剂、抗冲击改性剂、玻璃纤维、颜料均加入高速搅拌机搅拌5分钟、温度达到95℃;
S4:向步骤S3中加入ABS,并继续搅拌,当温度达到105℃时,停止搅拌,并转入至冷却机中,将温度冷却到25—35℃,得到外层料,备用;
S5:将步骤S4中得到的外层料加入注塑机中,将注塑机上的加工温度控制到140-265℃、注塑速度控制在30-120cm3/s,注塑压力80-160bar,保压压力40-80bar,然后将外层料注入模具的外层,再将步骤S2中得到的内层料加入注塑机,将注塑温度控制在140-250℃,注塑速度20-100cm3/s,注塑压力60-100bar,保压压力40-100bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间5-120分钟,所述外层料加入模具时间早于内层料加入模具时间5-60秒。
10.根据权利要求9所述的大口径加筋管材的制备方法,其特征在于:
S5:将步骤S4中得到的外层料加入注塑机中,将注塑机上的加工温度控制到190℃、注塑速度控制在35cm3/s,注塑压力80bar,保压压力60bar,然后将外层料注入模具的外层,再将步骤S2中得到的内层料加入注塑机,将注塑温度控制在185℃,注塑速度30cm3/s,注塑压力70bar,保压压力30bar,然后将内层料注入模具的内层,内层料和外层料均注射完成后,总体冷却时间6分钟,所述外层料加入注塑机的加入时间早于内层料加入注塑机的30秒。
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