CN101733856B - 一种改性超高分子量聚乙烯阻燃管材的制备方法 - Google Patents

一种改性超高分子量聚乙烯阻燃管材的制备方法 Download PDF

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CN101733856B
CN101733856B CN2009102323868A CN200910232386A CN101733856B CN 101733856 B CN101733856 B CN 101733856B CN 2009102323868 A CN2009102323868 A CN 2009102323868A CN 200910232386 A CN200910232386 A CN 200910232386A CN 101733856 B CN101733856 B CN 101733856B
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朱华明
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Chen Deming
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
    • B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04—Particle-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C2948/00—Indexing scheme relating to extrusion moulding
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    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
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Abstract

本发明公开了一种改性超高分子量聚乙烯阻燃管材的制备方法，制备步骤如下：(1)将各原料组分按以下质量份数配比混合，超高分子量聚乙烯80～120质量份，高密度聚乙烯20～60质量份，氯化聚乙烯10～30质量份，三氧化二锑10～20质量份，聚磷酸铵10～20质量份，然后经搅拌机充分搅拌8～12分钟，再在双螺杆挤出机中共混造粒，挤出机各段的温度在170～190℃；(2)将步骤(1)中双螺杆挤出机制得的颗粒再通过单螺杆挤出机挤出成品管材，单螺杆挤出机机筒的温度为160～180℃，模具的温度为170～190℃，模口的温度为165～175℃。本发明的制备方法简单，所制备的管材具有很高的阻燃性能，从而为在矿井下使用提供了安全保障。

Description

一种改性超高分子量聚乙烯阻燃管材的制备方法
技术领域
本发明涉及管材，特别涉及一种改性超高分子量聚乙烯阻燃管材的制备方法。
背景技术
现有技术中在矿井下用于充填管瓦斯的抽放管多数采用聚乙烯(PE)阻燃管材，由于PE管材的阻燃性较低，用于瓦斯的抽放管安全性较低，常会造成一定的安全隐患，同时PE管材还存在抗老化性能差、耐磨性低、使用寿命短等缺陷。
超高分子量聚乙烯(UHMWPE)是一种线型聚合物，分子量通常在100万-500万，UHMWPE具有摩擦系数小、耐化学药品性优良的特点，而且还具有耐冲击、耐压性、抗冻性、保温性、自润滑性等优良特性，这些优良的特性使UHMWPE具有重要的使用价值。但由于UHMWPE的分子量高达数百万，超长分子链间的无序缠结，使其分子链段对热运动反应迟缓，表现为熔体粘度高达108Pa·s，流动性极差，加之临界剪切速率极低，易产生熔体破裂等缺点，使其难以用常规塑料的加工技术进行加工成型，严重制约了UHMWPE的应用，成为自八十年代以来材料学界和产业界共同探索的热点课题。
发明内容
技术问题
本发明的目的在于克服现有技术中PE管材阻燃性较低、同时存在抗老化性能差、耐磨性低、使用寿命短等缺陷，提供一种阻燃性能高，同时抗老化性能、耐磨性能、自润滑性能、抗冲击性能和使用寿命均大大提高的改性超高分子量聚乙烯阻燃管材的制备方法。
技术方案
本发明是通过以下技术方案予以实现的。
一种改性超高分子量聚乙烯阻燃管材的制备方法，制备步骤如下：(1)将各原料组分按以下质量份数配比混合，超高分子量聚乙烯80～120质量份，高密度聚乙烯20～60质量份，氯化聚乙烯10～30质量份，三氧化二锑10～20质量份，聚磷酸铵10～20质量份，然后经搅拌机充分搅拌8～12分钟，再在双螺杆挤出机中共混造粒，挤出机各段的温度在170～190℃；(2)将步骤(1)中双螺杆挤出机制得的颗粒再通过单螺杆挤出机挤出成品管材，单螺杆挤出机机筒的温度为160～180℃，模具的温度为170～190℃，模口的温度为165～175℃。
上述的一种改性超高分子量聚乙烯阻燃管材的制备方法，其中，所述各原料组分的质量份数配比如下：超高分子量聚乙烯100质量份，高密度聚乙烯40质量份，氯化聚乙烯20质量份(氯化聚乙烯中氯的质量百分含量为70％)，三氧化二锑15质量份，聚磷酸铵15质量份。
上述的一种改性超高分子量聚乙烯阻燃管材的制备方法，其中，所述超高分子量聚乙烯的粘均分子量不小于350万。
上述的一种改性超高分子量聚乙烯阻燃管材的制备方法，其中，所述搅拌机的搅拌速度为600r/min。
高密度聚乙烯简称为HDPE，是一种由乙烯共聚生成的结晶度高、非极性的热塑性树脂。
有益效果
本发明提供了一种改性超高分子量聚乙烯阻燃管材的制备方法，本发明制备方法简单，所制备的管材具有很高的阻燃性能，其阻燃性能大大高于PE管材，从而为在矿井下使用提供了安全保障；同时由于管材的基材中含有超高分子量聚乙烯，使得所制备的管材抗老化性能、耐磨性能、自润滑性能、抗冲击性能和使用寿命均大大提高。
具体实施方式
为了更好地理解本发明，下面结合实施例对本发明作进一步说明，但本发明要求的保护范围并不局限于实施例表示的范围。
实施例1
一种改性超高分子量聚乙烯阻燃管材的制备方法，制备步骤如下：(1)将各原料组分按以下质量份数配比混合，超高分子量聚乙烯80质量份，高密度聚乙烯20质量份，氯化聚乙烯10质量份，三氧化二锑10质量份，聚磷酸铵10质量份，将上述配比的原料组分经搅拌机充分搅拌8分钟，搅拌机的搅拌速度为600r/min，然后在双螺杆挤出机中共混造粒，挤出机各段的温度在170～190℃；(2)将步骤(1)中双螺杆挤出机制得的颗粒再通过单螺杆挤出机挤出成品管材，单螺杆挤出机机筒的温度为160℃，模具的温度为170℃，模口的温度为165℃。
实施例2
一种改性超高分子量聚乙烯阻燃管材的制备方法，制备步骤如下：(1)将各原料组分按以下质量份数配比混合，超高分子量聚乙烯100质量份，高密度聚乙烯40质量份，氯化聚乙烯20质量份，三氧化二锑15质量份，聚磷酸铵15质量份，将上述配比的原料组分经搅拌机充分搅拌10分钟，搅拌机的搅拌速度为600r/min，然后在双螺杆挤出机中共混造粒，挤出机各段的温度在170～190℃；(2)将步骤(1)中双螺杆挤出机制得的颗粒再通过单螺杆挤出机挤出成品管材，单螺杆挤出机机筒的温度为170℃，模具的温度为180℃，模口的温度为170℃。
实施例3
一种改性超高分子量聚乙烯阻燃管材的制备方法，制备步骤如下：(1)将各原料组分按以下质量份数配比混合，超高分子量聚乙烯120质量份，高密度聚乙烯60质量份，氯化聚乙烯30质量份，三氧化二锑20质量份，聚磷酸铵20质量份，将上述配比的原料组分经搅拌机充分搅拌12分钟，搅拌机的搅拌速度为600r/min，然后在双螺杆挤出机中共混造粒，挤出机各段的温度在170～190℃；(2)将步骤(1)中双螺杆挤出机制得的颗粒再通过单螺杆挤出机挤出成品管材，单螺杆挤出机机筒的温度为180℃，模具的温度为190℃，模口的温度为175℃。
以下为本发明所述方法制备的改性超高分子量聚乙烯阻燃管材(UHMWPE)与聚乙烯(PE100)管材的阻燃性能对比数据：
酒精喷灯燃烧性能测试：
Figure G2009102323868D00031
由以上试验数据可知，在相同的燃烧和测试条件下，由本发明所述方法制备的改性超高分子量聚乙烯阻燃管材(UHMWPE)无论是平均燃烧时间还是最长燃烧时间均比聚乙烯(PE100)管材明显缩短，从而证明了本发明所述方法制备的改性超高分子量聚乙烯阻燃管材(UHMWPE)的阻燃性能明显高于聚乙烯(PE100)管材。

Claims (3)

1.一种改性超高分子量聚乙烯阻燃管材的制备方法，其特征在于，制备步骤如下：(1)将各原料组分按以下质量份数配比混合，超高分子量聚乙烯80～120质量份，高密度聚乙烯20～60质量份，氯化聚乙烯10～30质量份，三氧化二锑10～20质量份，聚磷酸铵10～20质量份，然后经搅拌机充分搅拌8～12分钟，搅拌机的搅拌速度为600r/min，再在双螺杆挤出机中共混造粒，挤出机各段的温度在170～190℃；(2)将步骤(1)中双螺杆挤出机制得的颗粒再通过单螺杆挤出机挤出成品管材，单螺杆挤出机机筒的温度为160～180℃，模具的温度为170～190℃，模口的温度为165～175℃。
2.如权利要求1所述的一种改性超高分子量聚乙烯阻燃管材的制备方法，其特征在于，所述各原料组分的质量份数配比如下：超高分子量聚乙烯100质量份，高密度聚乙烯40质量份，氯化聚乙烯20质量份，三氧化二锑15质量份，聚磷酸铵15质量份。
3.如权利要求1或2所述的一种改性超高分子量聚乙烯阻燃管材的制备方法，其特征在于，所述超高分子量聚乙烯的粘均分子量不小于350万。
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CN103044749A (zh) * 2012-12-28 2013-04-17 江苏金波新材料科技有限公司 超高分子量聚乙烯管材的制备方法
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CN103524851B (zh) * 2013-10-12 2016-01-20 浙江伟星新型建材股份有限公司 一种具有阻燃抗静电的煤矿井下输浆管及其制备方法
CN107584742B (zh) * 2017-07-28 2019-05-17 山西华星管业科技有限公司 超高分子量聚乙烯管材的生产方法及其使用的挤出机机模
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