CN102850696B - 一种高韧性聚氯乙烯管材 - Google Patents

一种高韧性聚氯乙烯管材 Download PDF

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CN102850696B
CN102850696B CN201210353380.8A CN201210353380A CN102850696B CN 102850696 B CN102850696 B CN 102850696B CN 201210353380 A CN201210353380 A CN 201210353380A CN 102850696 B CN102850696 B CN 102850696B
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肖伟荣
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Wujiang Huacheng Composite Technology Co Ltd
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Wujiang Tianyuan Plastic 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
    • B29C48/25—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
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
    • 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
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • 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
    • B29C2948/92885—Screw or gear
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

本发明提供了一种高韧性聚氯乙烯管材，属于高分子材料技术领域。是由以下重量份的组分制成：聚氯乙烯树脂100～150份、氯化聚氯乙烯树脂20～30份、丙烯酸树脂6～8份、聚对苯二甲酸丙二醇酯2～4份、聚氨酯3～6份、丁苯橡胶10～15份、马来酰亚胺3～6份、甲基丙烯酸甲酯1～2份、二盐基亚磷酸铅1～2份、碳化硅晶须2～4份、玻璃纤维1～2份、聚酰胺2～3份、亚磷酸二苯酯2～4份、稳定剂2～3份、氯化聚丙烯酸-丁二烯-苯乙烯共聚物2～6份、抗老化剂1～2份、三氧化二铝1份、二氧化硅1份、二氧化钛1份、莫来石2～3份、钛酸酯偶联剂1～2份、润滑剂6～10份、着色剂2～3份。制得的聚氯乙烯管材具有高韧性、高机械强度的特点，优于市面同类产品。

Description

一种高韧性聚氯乙烯管材
技术领域
本发明提供了一种高韧性聚氯乙烯管材，属于高分子材料技术领域。
背景技术
聚氯乙烯管，也称PVC管，是由氯乙烯单体聚合而成的热塑性高聚物制成的管材，以聚氯乙烯树脂为主要原料，加入适量的抗老化剂、改性剂等，经混炼、压延、真空吸塑等工艺而成的材料。PVC管抗腐蚀能力强、易于粘接、PVC对氧化剂、还原剂和强酸都有很强的抵抗力。然而它能够被浓氧化酸如浓硫酸、浓硝酸所腐蚀并且也不适用与芳香烃、氯化烃接触的场合。
但是，PVC管，特别是UPVC管耐热性能差，且在60℃以上环境抗拉强度下降，低温环境下硬聚氯乙烯塑料排水管抗冲击强度降低。在运输、安装及使用过程中，易发生脆性破坏；另外，PVC管承受冲击的性能也较差。
发明内容
针对以上对现有技术的评述，本发明所要解决的技术问题是：提高PVC管的韧性、强度。采用如下的技术方案：
一种高韧性聚氯乙烯管材，是由以下重量份的组分制成：聚氯乙烯树脂100～150份、氯化聚氯乙烯树脂20～30份、丙烯酸树脂6～8份、聚对苯二甲酸丙二醇酯2～4份、聚氨酯3～6份、丁苯橡胶10～15份、马来酰亚胺3～6份、甲基丙烯酸甲酯1～2份、二盐基亚磷酸铅1～2份、碳化硅晶须2～4份、玻璃纤维1～2份、聚酰胺2～3份、亚磷酸二苯酯2～4份、稳定剂2～3份、氯化聚丙烯酸-丁二烯-苯乙烯共聚物2～6份、抗老化剂1～2份、三氧化二铝1份、二氧化硅1份、二氧化钛1份、莫来石2～3份、钛酸酯偶联剂1～2份、润滑剂6～10份、着色剂2～3份。
所述的氯化聚氯乙烯树脂的氯含量优选自61～65%。
所述的稳定剂优选自有机锡稳定剂或钙锌稳定剂。
所述的润滑剂优选自石蜡、硬脂酸镁、聚乙烯蜡中的一种。
所述的着色剂可以选自碳黑、氧化铁红、柠檬黄、酞表蓝中的一种。
上述的高韧性聚氯乙烯管材的制备方法是：
S1：按比例称取各组分，将90～110℃温度下混合均匀，保温20分钟；
S2：将S1所得混合物加入锥形双螺杆挤出机，机身温度是150℃，一区180℃；二区190℃；三区195℃；四区200℃；五区210℃；主机转速为30rpm；喂料器转速为20rpm；
S3：真空定径、成型、切割。
有益效果
本发明的高韧性聚氯乙烯管材使用了碳化硅晶须，可以有效地加强管材内部的结构，使管材之间的力学强度、韧性都得到了提高。另外，由于加入了二盐基亚磷酸铅，提高管材的抗老化性；润滑剂可以在生产过程中，使材料更加均匀、提高了挤出的润滑平整性，也起到了增强内部结构的作用。制得的聚氯乙烯管材具有高韧性、高机械强度的特点，优于市面同类产品。
具体实施方式
按表1所示的重量比备制各组分。
表1实施例1～实施例3的重量配比
Figure GDA0000402876240000021
Figure GDA0000402876240000031
上述的氯化聚氯乙烯树脂的氯含量是61～65%。
上述的稳定剂是有机锡稳定剂。
上述的润滑剂是石聚乙烯蜡中。
上述的着色剂是碳黑。
上述的高韧性聚氯乙烯管材的制备方法是：
S1：按比例称取各组分，将90～110℃温度下混合均匀，保温20分钟；
S2：将S1所得混合物加入锥形双螺杆挤出机，机身温度是150℃，一区180℃；二区190℃；三区195℃；四区200℃；五区210℃；主机转速为30rpm；喂料器转速为20rpm；
S3：真空定径、成型、切割。
性能试验
按上述原料和制备方法制得得到内径40mm的PVC管，照T10002.1-2006《给水用硬聚氯乙烯(PVC-U)管材》标准试验，与市面常见的UPVC管材进行对照，试验结果如表2所示。
表2实施例1～实施例3以及对照例的性能测试数据
Figure GDA0000402876240000032
从表2的试验数据可以看出，本发明提供的聚氯乙烯管材相比于市面常见的PVC管，具有更好的抗落锤冲击性能，说明其具有更高的韧性和机械强度。

Claims (5)

1.一种高韧性聚氯乙烯管材，是由以下重量份的组分制成：聚氯乙烯树脂100～150份、氯化聚氯乙烯树脂20～30份、丙烯酸树脂6～8份、聚对苯二甲酸丙二醇酯2～4份、聚氨酯3～6份、丁苯橡胶10～15份、马来酰亚胺3～6份、甲基丙烯酸甲酯1～2份、二盐基亚磷酸铅1～2份、碳化硅晶须2～4份、玻璃纤维1～2份、聚酰胺2～3份、亚磷酸二苯酯2～4份、稳定剂2～3份、氯化聚丙烯酸-丁二烯-苯乙烯共聚物2～6份、抗老化剂1～2份、三氧化二铝1份、二氧化硅1份、二氧化钛1份、莫来石2～3份、钛酸酯偶联剂1～2份、润滑剂6～10份、着色剂2～3份；制备方法是：
S1：按比例称取各组分，将90～110℃温度下混合均匀，保温20分钟；
S2：将S1所得混合物加入锥形双螺杆挤出机，机身温度是150℃，一区180℃；二区190℃；三区195℃；四区200℃；五区210℃；主机转速为30rpm；喂料器转速为20rpm；
S3：真空定径、成型、切割。
2.根据权利要求1所述的高韧性聚氯乙烯管材，其特征是：所述的氯化聚氯乙烯树脂的氯含量是61～65%。
3.根据权利要求1所述的高韧性聚氯乙烯管材，其特征是：所述的稳定剂是有机锡稳定剂或钙锌稳定剂。
4.根据权利要求1所述的高韧性聚氯乙烯管材，其特征是：所述的润滑剂是石蜡、硬脂酸镁、聚乙烯蜡中的一种。
5.根据权利要求1所述的高韧性聚氯乙烯管材，其特征是：所述的着色剂是碳黑、氧化铁红、柠檬黄、酞表蓝中的一种。
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