CN103131096A - 一种高抗冲pvc矿用管及其制法 - Google Patents

一种高抗冲pvc矿用管及其制法 Download PDF

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CN103131096A
CN103131096A CN2011103776133A CN201110377613A CN103131096A CN 103131096 A CN103131096 A CN 103131096A CN 2011103776133 A CN2011103776133 A CN 2011103776133A CN 201110377613 A CN201110377613 A CN 201110377613A CN 103131096 A CN103131096 A CN 103131096A
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parts
impact strength
mining
sandwich layer
pvc
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CN103131096B (zh
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朱登国
刘持政
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SHANDONG JINDA PIPE INDUSTRY Co Ltd
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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
    • B29C48/03—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
    • B29C48/25—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
    • 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
    • B29C48/92—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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明涉及一种高抗冲PVC矿用管，由内外皮层和芯层构成，其特征是，1)所述内外皮层由如下原料制成：平均聚合度为1000-1100的PVC树脂100份，导电炭黑8-11份，热稳定剂5-6份，润滑剂1-2份，低分子聚乙烯蜡1-2份，高抗冲击性改性剂12-20份；2)所述芯层由如下原料制成：平均聚合度为1000-1100的PVC树脂100份，热稳定剂4-5份，润滑剂0.2-0.3份，低分子聚乙烯蜡0.2-0.3份，高抗冲击性改性剂10-12份。本发明的管材具有内外表面长久抗静电，管材抗冲击性高，耐低温的性能好。

Description

一种高抗冲PVC矿用管及其制法
技术领域
本发明涉及一种高抗冲PVC矿用管及其制法。
背景技术
在煤矿用PVC管材方面，目前的生产技术主要有两种，一种是单层生产工艺，是在PVC树脂中加入导电材料和其他助剂，通过混合后，加热、挤出、冷却定型，这种工艺导电材料在管材中分散均匀，但管材强度较低，成本较高；另一种是复合工艺，既管材由三层构成，内外皮层是导电层，芯层是不导电层，这种工艺保持了导电性能和一定的强度，成本较低。但目前这两种工艺生产的管材其强度都很难达到煤矿井下使用的实际条件，且低温脆性特别明显，出现装卸车摔裂，井下偏帮、落石砸坏，10℃度以下脆性特别明显。
发明内容
本发明是提供一种高抗冲PVC矿用管及其制法，采用三层复合结构，管材内外表面长久抗静电，管材抗冲击性高，耐低温的性能好。
本发明具体采用如下技术方案：
一种高抗冲PVC矿用管，由内外皮层和芯层构成，其特征是，
1)所述内外皮层由如下原料制成：
Figure BSA00000620059300021
2)所述芯层由如下原料制成：
Figure BSA00000620059300022
其中，热稳定剂为铅基复合稳定剂，例如：硬脂酸铅、月桂酸铅、混合脂肪酸铅、环烷酸铅、环氧脂肪酸铅、对叔丁基苯甲酸铅、对甲基苯甲酸铅等；
其中，润滑剂为硬脂酸；
其中，低分子聚乙烯蜡的平均分子量为1300-5800；
其中，高抗冲击性改性剂为丙烯酸酯橡胶(ACM)。
一种高抗冲PVC矿用管的制法，其特征是，包括如下步骤：
1)混料：按照本发明的配方将皮层和芯层原料分别投入高速混料机混合，加温至110℃-120℃，然后放入冷混料机冷却至40℃；
2)成型：分别投入皮层和芯层PVC双螺杆挤出机，挤出成型，其中，挤出机料筒温度150℃-170℃，模具温度155℃-180℃。
本发明的有益效果在于：
按照标准MT558.2-2005(矿用聚氯乙烯管材标准)进行检测，其结果是：
材料表面电阻＜10Ω
材料有焰燃烧时间＜3s
材料无焰燃烧时间＜20s
材料拉伸强度＞＝40Mpa
对于公称压力小于1.25Mpa的管材被压至管材外径的1/2时无裂纹和破坏。对于公称压力大于1.25Mpa的管材不作要求。
两米落锤实验，低温0℃，10kg锤，样品无损坏。
本发明产品完全符合上述标准，且材料拉伸强度和两米落锤实验明显优于标准要求，抗冲击性好。
附图说明
图1是本发明的结构示意图；
图中，1-内外皮层，2-芯层。
具体实施方式
如图1所示，由内外皮层1和芯层2构成。
1)内外皮层由如下原料制成：
Figure BSA00000620059300031
2)所述芯层由如下原料制成：
Figure BSA00000620059300041
上述原料均为市售商品。
一种高抗冲PVC矿用管的制法，包括如下步骤：
1)混料：按照上述配方将皮层和芯层原料分别投入高速混料机混合，加温至110℃-120℃，然后放入冷混料机冷却至40℃；
2)成型：分别投入皮层和芯层PVC双螺杆挤出机，挤出成型，其中，挤出机料筒温度150℃-170℃，模具温度155℃-180℃。

Claims (3)

1.一种高抗冲PVC矿用管，由内外皮层和芯层构成，其特征是，
1)所述内外皮层由如下原料制成：
Figure FSA00000620059200011
2)所述芯层由如下原料制成：
Figure FSA00000620059200012
2.根据权利要求1所述的高抗冲PVC矿用管，其特征是，所述热稳定剂为铅基复合稳定剂，润滑剂为硬脂酸，低分子聚乙烯蜡的平均分子量为1300-5800，高抗冲击性改性剂为丙烯酸酯橡胶。
3.一种高抗冲PVC矿用管的制法，其特征是，包括如下步骤：
1)混料：按照权利要求1的配方将皮层和芯层原料分别投入高速混料机混合，加温至110℃-120℃，然后放入冷混料机冷却至40℃；
2)成型：分别投入皮层和芯层PVC双螺杆挤出机，挤出成型，其中，挤出机料筒温度150℃-170℃，模具温度155℃-180℃。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104514928A (zh) * 2013-09-29 2015-04-15 潍坊市精达塑料机械有限公司 Pvc防静电塑筋螺旋软管及其制备方法
CN105328891A (zh) * 2015-10-21 2016-02-17 杭州摩鼎建材有限公司 涂有丙稀酸树脂的pvc管材及其制造方法和生产设备
CN111234410A (zh) * 2020-01-20 2020-06-05 杭州以勒橡塑有限公司 一种聚氯乙烯导电料及其制备方法

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Publication number Priority date Publication date Assignee Title
CN1221086A (zh) * 1998-10-07 1999-06-30 王庆昭 超高分子量聚乙烯编织复合增强管的结构和制造方法
CN101007878A (zh) * 2006-01-25 2007-08-01 扬州科宇化工有限公司 Pvc用水滑石－稀土－钙锌稳定剂及其制备方法
CN101696754A (zh) * 2009-10-23 2010-04-21 山东齐鲁科力化工研究院有限公司 超高分子量聚乙烯/聚氯乙烯复合管材及其制造方法
CN101891866A (zh) * 2010-08-13 2010-11-24 山东日科化学股份有限公司 抗冲击性、加工性优良的聚氯乙烯混合物
CN102863710A (zh) * 2011-07-06 2013-01-09 中国石油化工股份有限公司 煤矿用三层共挤出pvc-m管材

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1221086A (zh) * 1998-10-07 1999-06-30 王庆昭 超高分子量聚乙烯编织复合增强管的结构和制造方法
CN101007878A (zh) * 2006-01-25 2007-08-01 扬州科宇化工有限公司 Pvc用水滑石－稀土－钙锌稳定剂及其制备方法
CN101696754A (zh) * 2009-10-23 2010-04-21 山东齐鲁科力化工研究院有限公司 超高分子量聚乙烯/聚氯乙烯复合管材及其制造方法
CN101891866A (zh) * 2010-08-13 2010-11-24 山东日科化学股份有限公司 抗冲击性、加工性优良的聚氯乙烯混合物
CN102863710A (zh) * 2011-07-06 2013-01-09 中国石油化工股份有限公司 煤矿用三层共挤出pvc-m管材

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104514928A (zh) * 2013-09-29 2015-04-15 潍坊市精达塑料机械有限公司 Pvc防静电塑筋螺旋软管及其制备方法
CN105328891A (zh) * 2015-10-21 2016-02-17 杭州摩鼎建材有限公司 涂有丙稀酸树脂的pvc管材及其制造方法和生产设备
CN105328891B (zh) * 2015-10-21 2018-12-21 杭州摩鼎建材有限公司 涂有丙烯酸树脂的pvc管材及其制造方法和生产设备
CN111234410A (zh) * 2020-01-20 2020-06-05 杭州以勒橡塑有限公司 一种聚氯乙烯导电料及其制备方法

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