CN102924842B - 一种高抗冲pvc/nbr管材及其制备方法 - Google Patents

一种高抗冲pvc/nbr管材及其制备方法 Download PDF

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CN102924842B
CN102924842B CN201210357617.XA CN201210357617A CN102924842B CN 102924842 B CN102924842 B CN 102924842B CN 201210357617 A CN201210357617 A CN 201210357617A CN 102924842 B CN102924842 B CN 102924842B
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pvc
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CN102924842A (zh
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林传忍
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Hunan Jinkang Pipe Industry Co., Ltd.
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GUANYI INDUSTRIAL Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/04Particle-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means 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
    • B29C48/40Means 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/9258Velocity
    • B29C2948/9259Angular velocity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885Screw or gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895Barrel or housing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92904Die; Nozzle zone

Abstract

本发明公开了一种高抗冲PVC/NBR管材及其制备方法,其由A料和B料等比例混合挤出造粒制备而成。本发明通过对配方进一步优化,使得在PVC管材的加工过程中能促进无机填料的分散,提高PVC熔体的流动性,还能提升拉伸强度与断裂伸长率,改变了聚乙烯制品在使用氯化聚乙烯时,韧性好,硬度低的缺点;本发明配方中在使用ACM、MBS、NBR树脂等成份后,所生产的管材的冷弯性能,抗冲击能力都有所提高。

Description

-种高抗冲PVC/NBR管材及其制备方法
技术领域
[0001] 本发明涉及PVC管材生产领域,尤其涉及一种高抗冲PVC/NBR管材及其制备方法。
背景技术
[0002] PVC管材的主要成份为聚氯乙烯,另外加入增塑剂、抗老化剂等辅料来增加其耐热 性、韧性、延展性等。PVC是当今世界上深受喜爱、颇为流行并且也被广泛应用的一种合成材 料。PVC管材是一种成熟的管材,主要应用于给排水工程。PVC管材具有耐酸、耐碱、耐腐蚀 性、强度高等优点,但是,目前大步分生产厂家生产出来的PVC管材抗冲击性能并不好,尤 其在PVC制品的加工中的塑化过程,无机物的分散和PVC熔体的加工流动性一直是个难题。
发明内容
[0003] 本发明的目的是针对现有技术的不足提供一种高抗冲PVC/NBR管材及其制备方 法,提高PVC管材的抗冲击性能。
[0004] 为实现上述目的,本发明采用如下技术方案:
[0005] -种高抗冲PVC/NBR管材,其特征在于,其由A料和B料等比例混合挤出造粒制备 而成,所述A料、B料分别由下列重量份的原料挤出造粒而得:
[0006]A料:
[0007] 聚氯乙烯SG-5 50-60、聚氯乙烯再生料40-50、轻质碳酸钙20-30、氯化聚乙烯 10-20、聚四氟乙烯10-15、二甲基二巯基乙酸异辛酯锡2-5、N,N-二亚硝基五次甲基四胺 0. 2-0. 4、ACM4-8、MBS4-8、异丙基二硬脂酰氧基铝酸酯0. 3-0. 5、抗氧剂1010 0. 4-0. 6、紫 外线吸收剂UV-360 0. 2-0. 4、亚乙基双硬脂酰胺0. 3-0. 5、双十二碳醇酯0. 1-0. 2、改性粉 煤灰5-10,
[0008] 所述的改性粉煤灰由下列方法制成:将灼烧之后的粉煤灰先后依次置于20-25% 硫酸、16-24%氢氧化钠溶液中,搅拌20-22h,然后从酸碱浸液中滤出的粉煤灰,用去离子水 冲洗至中性,并用PH试纸测试加以确定,最后过滤,干燥,然后按粉煤灰:橄榄石粉:钾长石 粉重量比1 :〇. 3-0. 5 :0. 5-0. 8将三种物料送入流化床中1050-1KKTC焙烧1-1. 5小时,冷 却后研磨成纳米粉末。
[0009]B料:
[0010] 聚氯乙烯SG-5 50-60、NBR树脂20-30、双酚A型聚碳酸酯10-15、ABS高胶粉 5-10、二偶氮氨基苯2-5、氯化聚乙烯10-20、铝酸酯偶联剂DL-411 0. 3-0. 5、双十八碳醇 酯0. 1-0. 3、抗氧剂1035 0. 2-0. 5、氧化聚乙烯蜡0. 3-0. 5、双巯基乙酸异辛酯二正辛基锡 2-5、聚磷酸铵1-3、改性纳米粉5-10,
[0011] 所述的改性纳米粉由下列方法制成:由碳酸钙、白云石粉、钾长石粉等600-700°C 下烧损4-5小时,后研磨成纳米粉末,拌入相当于粉体重量3-5%的双(二辛氧基焦磷酸酯 基)乙撑钛酸酯拌搅均匀,烘干,粉碎成粉末。
[0012] 所述的高抗冲PVC/NBR管材的制备方法包括以下步骤:
[0013] 第一步:分别制备A料、B料
[0014] 一、A料的制备
[0015] (1)按配方比例称取各配方原料,将称好的原材料投入高速混合机内高速搅拌 10-15min,温度为80-90°C,待其水份充分蒸发后,经冷混机将物料降至40-50°C;
[0016] (2)将上述混合料加入到平行双螺杆挤出机中进行熔融共混并造粒即得A料,挤 出机机筒温度为245-255°C,模头温度为255-270°C,螺杆转速为300-550rpm;
[0017] 二、B料的制备
[0018]B料的制备采用同A料的相同的工艺进行造粒;
[0019] 第二步:A料与B料混合造粒
[0020] 将上述制得的A料和B料等比例加入到平行双螺杆挤出机中进行熔融共混并 造粒即得混合粒子,挤出机机筒温度为265-275°C,模头温度为270-285°C,螺杆转速为 300-550rpm;
[0021] 第三步:挤出成型
[0022] 采用锥形双螺杆挤出机将所得的混合粒子挤出成型,即得高抗冲PVC/NBR管材, 挤出机机筒温度为278-290°C,模头温度为280-300°C;
[0023] 第四步:后处理
[0024] 将所得的高抗冲PVC/NBR管材冷却至5 -KTC定型,然后将定型的管材按所需要 求进行切割,最后把切割好的产品进行包装,放入仓库待运即可。
[0025] 本发明具有如下有益效果:
[0026] 本发明通过对配方进一步优化,使得在PVC管材的加工过程中能促进无机填料的 分散,提高PVC熔体的流动性,还能提升拉伸强度与断裂伸长率,改变了聚乙烯制品在使用 氯化聚乙烯时,韧性好,硬度低的缺点;本发明配方中在使用ACM、MBS、NBR树脂等成份后, 所生产的管材的冷弯性能,抗冲击能力都有所提高。
具体实施方式
[0027] 下面结合实施例对本发明做进一步详细说明。
[0028] 实施例
[0029] 高抗冲PVC/NBR管材的制备方法包括以下步骤:
[0030] 第一步:A料的制备
[0031] 取下列重量份的原料:聚氯乙烯SG-5 60、聚氯乙烯再生料50、轻质碳酸钙30、 氯化聚乙烯20、聚四氟乙烯15、二甲基二巯基乙酸异辛酯锡5、N,N-二亚硝基五次甲基四 胺0.4、ACM6、MBS6、异丙基二硬脂酰氧基铝酸酯0.5、抗氧剂1010 0.6、紫外线吸收剂 UV-360 0. 4、亚乙基双硬脂酰胺0. 5、双十二碳醇酯0. 2、改性粉煤灰10,
[0032] 其中,改性粉煤灰由下列方法制成:将灼烧之后的粉煤灰先后依次置于25%硫酸、 24%氢氧化钠溶液中,搅拌22h,然后从酸碱浸液中滤出的粉煤灰,用去离子水冲洗至中性, 并用PH试纸测试加以确定,最后过滤,干燥,然后按粉煤灰:橄榄石粉:钾长石粉重量比1 : 0. 5 :0. 8将三种物料送入流化床中IKKTC焙烧1. 5小时,冷却后研磨成纳米粉末,
[0033] 将称好的原材料投入高速混合机内高速搅拌15min,温度为90°C,待其水份充分 蒸发后,经冷混机将物料降至50°C,将上述混合料加入到平行双螺杆挤出机中进行熔融共 混并造粒即得A料,挤出机机筒温度为254°C,模头温度为268°C,螺杆转速为350rpm;
[0034] 第二步:B料的制备
[0035] 取下列重量份的原料:聚氯乙烯SG-5 60、NBR树脂30、双酚A型聚碳酸酯KKABS 高胶粉8、二偶氮氨基苯2、氯化聚乙烯10、铝酸酯偶联剂DL-411 0. 3、双十八碳醇酯0. 2、抗 氧剂1035 0. 2、氧化聚乙烯蜡0. 3、双巯基乙酸异辛酯二正辛基锡2、聚磷酸铵2、改性纳米 粉6,
[0036] 其中,改性纳米粉由下列方法制成:由碳酸钙、白云石粉、钾长石粉等700°C下烧 损5小时,后研磨成纳米粉末,拌入相当于粉体重量4%的双(二辛氧基焦磷酸酯基)乙撑 钛酸酯拌搅均匀,烘干,粉碎成粉末,
[0037] 将称好的原材料投入高速混合机内高速搅拌15min,温度为90°C,待其水份充分 蒸发后,经冷混机将物料降至50°C,将上述混合料加入到平行双螺杆挤出机中进行熔融共 混并造粒即得B料,挤出机机筒温度为254°C,模头温度为268°C,螺杆转速为350rpm;
[0038] 第三步:A料与B料混合造粒
[0039] 将上述制得的A料和B料等比例加入到平行双螺杆挤出机中进行熔融共混并造粒 即得混合粒子,挤出机机筒温度为263°C,模头温度为275°C,螺杆转速为400rpm;
[0040] 第四步:挤出成型
[0041] 采用锥形双螺杆挤出机将所得的混合粒子挤出成型,即得高抗冲PVC/NBR管材, 挤出机机筒温度为285°C,模头温度为292°C;
[0042] 第五步:后处理
[0043] 将所得的高抗冲PVC/NBR管材冷却至5°C定型,然后将定型的管材按所需要求进 行切割,最后把切割好的产品进行包装,放入仓库待运即可。
[0044] 本发明的对比验证测试结果如下表:
[0045]
Figure CN102924842BD00051
[0046] 从上表可以看出,与普通PVC管材相比,本发明所制得的PVC/NBR管材的拉伸强 度、断裂伸长率和抗冲击性能都有所提高,且符合QB/T2480指标,能够广泛应用于建筑中 所需的管道材料。

Claims (1)

1. 一种高抗冲PVC/NBR管材,其特征在于,其由A料和B料等比例混合挤出造粒制备而 成,所述A料、B料分别由下列重量份的原料挤出造粒而得: A料: 聚氯乙烯SG-5 50-60、聚氯乙烯再生料40-50、轻质碳酸钙20-30、氯化聚乙烯10-20、 聚四氟乙烯10-15、二甲基二巯基乙酸异辛酯锡2-5、N,N-二亚硝基五次甲基四胺0.2-0. 4、 ACM 4-8、MBS4-8、异丙基二硬脂酰氧基铝酸酯0. 3-0. 5、抗氧剂1010 0. 4-0. 6、紫外线吸收 剂UV-360 0• 2-0. 4、亚乙基双硬脂酰胺0• 3-0. 5、双十二碳醇酯0• 1-0. 2、改性粉煤灰5-10, 所述的改性粉煤灰由下列方法制成:将灼烧之后的粉煤灰先后依次置于20-25%硫酸、 16-24%氢氧化钠溶液中,搅拌20-22h,然后从酸碱浸液中滤出的粉煤灰,用去离子水冲洗 至中性,并用PH试纸测试加以确定,最后过滤,干燥,然后按粉煤灰:橄榄石粉:钾长石粉重 量比1 :0. 3-0. 5 :0. 5-0. 8将三种物料送入流化床中1050-1KKTC焙烧1-1. 5小时,冷却后 研磨成纳米粉末; B料: 聚氯乙烯SG-5 50-60、NBR树脂20-30、双酚A型聚碳酸酯10-15、ABS高胶粉5-10、二偶 氮氨基苯2-5、氯化聚乙烯10-20、铝酸酯偶联剂DL-411 0. 3-0. 5、双十八碳醇酯0. 1-0. 3、 抗氧剂1035 0. 2-0. 5、氧化聚乙烯蜡0. 3-0. 5、双巯基乙酸异辛酯二正辛基锡2-5、聚磷酸 铵1-3、改性纳米粉5-10, 所述的改性纳米粉由下列方法制成:由碳酸钙、白云石粉、钾长石粉等600-700°C下烧 损4-5小时,后研磨成纳米粉末,拌入相当于粉体重量3-5%的双(二辛氧基焦磷酸酯基) 乙撑钛酸酯拌搅均匀,烘干,粉碎成粉末; 所述的高抗冲PVC/NBR管材的制备方法,包括以下步骤: 第一步:分别制备A料、B料 A料的制备 (1) 按配方比例称取各配方原料,将称好的原材料投入高速混合机内高速搅拌10-15 min,温度为80-90°C,待其水份充分蒸发后,经冷混机将物料降至40-50°C ; (2) 将上述混合料加入到平行双螺杆挤出机中进行熔融共混并造粒即得A料,挤出机 机筒温度为245-255°C,模头温度为255-270°C,螺杆转速为300-550rpm ; 二、B料的制备 B料的制备采用同A料的相同的工艺进行造粒; 第二步:A料与B料混合造粒 将上述制得的A料和B料等比例加入到平行双螺杆挤出机中进行熔融共混并造粒即得 混合粒子,挤出机机筒温度为265-275°C,模头温度为270-285°C,螺杆转速为300-550rpm ; 第三步:挤出成型 采用锥形双螺杆挤出机将所得的混合粒子挤出成型,即得高抗冲PVC/NBR管材,挤出 机机筒温度为278-290°C,模头温度为280-300°C ; 第四步:后处理 将所得的高抗冲PVC/NBR管材冷却至5 - 10°C定型,然后将定型的管材按所需要求进 行切割,最后把切割好的产品进行包装,放入仓库待运即可。
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