CN116199982A - 一种高强度pvc发泡管道及其制备方法 - Google Patents
一种高强度pvc发泡管道及其制备方法 Download PDFInfo
- Publication number
- CN116199982A CN116199982A CN202310117180.0A CN202310117180A CN116199982A CN 116199982 A CN116199982 A CN 116199982A CN 202310117180 A CN202310117180 A CN 202310117180A CN 116199982 A CN116199982 A CN 116199982A
- Authority
- CN
- China
- Prior art keywords
- parts
- foaming
- speed
- pvc
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005187 foaming Methods 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 15
- 238000001125 extrusion Methods 0.000 claims abstract description 15
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 15
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 14
- 229910000077 silane Inorganic materials 0.000 claims abstract description 14
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 239000004156 Azodicarbonamide Substances 0.000 claims abstract description 8
- 239000004605 External Lubricant Substances 0.000 claims abstract description 8
- 239000004610 Internal Lubricant Substances 0.000 claims abstract description 8
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims abstract description 8
- 235000019399 azodicarbonamide Nutrition 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000004088 foaming agent Substances 0.000 claims abstract description 8
- 239000003381 stabilizer Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 239000006260 foam Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 40
- 229920000915 polyvinyl chloride Polymers 0.000 description 40
- 238000012360 testing method Methods 0.000 description 12
- 230000006698 induction Effects 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 229920001169 thermoplastic Polymers 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 6
- 238000010998 test method Methods 0.000 description 6
- 239000004416 thermosoftening plastic Substances 0.000 description 6
- 238000000113 differential scanning calorimetry Methods 0.000 description 3
- 238000009863 impact test Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 125000006414 CCl Chemical group ClC* 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/009—Use of pretreated compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
本发明公开了一种高强度PVC发泡管道及其制备方法,包括具体如下步骤:1)取PVC树脂粉、外润滑剂、内润滑剂、脱模剂、稳定剂、乙烯‑醋酸乙烯酯共聚物,硅烷改性纳米二氧化硅,发泡剂偶氮二甲酰胺及发泡调节剂加至高速混料机中,在低速下搅拌初步混合,随后调节至高速,在高速下搅拌物料,接着将物料排入至冷混机冷却,冷却完毕后排出,得到挤出用料;2)将得到的挤出用料移入锥形双螺杆挤出机中挤出成型,即可得到高强度PVC发泡管道,采用本发明制备方法制备的PVC发泡管道,发泡数大、泡孔直径小且均匀,力学强度增强,与市面出售的发泡管材相比较,本发明的PVC发泡管道保温降噪性能优异,抗冲强度增强,耐候性及热稳定型提高。
Description
技术领域
本发明涉及塑料管道制备技术领域,具体涉及一种高强度PVC发泡管道及其制备方法。
背景技术
PVC(聚氯乙烯)作为五大通用塑料之一,因其具有较好的绝缘性,不易燃烧,价格低廉,耐腐蚀性等优点而广泛的应用于因此广泛应用于包装、建筑等领域。其中PVC发泡材料因具有质轻、保温、降噪和防潮等优势,故被消费者所青睐。但由于PVC分子链中存在大量C-Cl极性键,使得分子间存在较大的作用力,导致PVC刚性较大而韧性不足,并且受热后易分解,因而以PVC为原料制备发泡管道存在发泡量少而不匀、热稳定性差和强度低易破碎等问题,从而使PVC发泡管道的应用受到限制。
发明内容
针对上述问题,本发明的目的在于提供一种高强度PVC发泡管道及其制备方法,旨在改善PVC发泡管道发泡量少而不匀、热稳定性差和强度低易破碎等问题。
本发明的技术方案如下:
本发明提供了一种高强度PVC发泡管道,包括以下重量份的原料:
PVC树脂粉100份、外润滑剂1-1.2份、内润滑剂1-1.2份、脱模剂0.2-0.4份、稳定剂1.5-2.5份、乙烯-醋酸乙烯酯共聚物2.5-5.0份,硅烷改性纳米二氧化硅3-5份,发泡剂偶氮二甲酰胺3-5份,发泡调节剂4-8份。
进一步地,所述PVC树脂粉为DG-800型。
进一步地,所述硅烷改性纳米二氧化硅是利用硅烷偶联剂KH550水解后,其中的乙氧基变成硅羟基官能团,会与纳米二氧化硅上的硅羟基发生脱水缩合反应,从而达到提高其与基体材料相容性和分散性的目的,其反应机理如下过程所示:
本发明还提出了一种高强度PVC发泡管道的制备方法,包括具体如下步骤:
1)取PVC树脂粉、外润滑剂、内润滑剂、脱模剂、稳定剂、乙烯-醋酸乙烯酯共聚物,硅烷改性纳米二氧化硅,发泡剂偶氮二甲酰胺及发泡调节剂加至高速混料机中,在低速下搅拌初步混合,随后调节至高速,在高速下搅拌物料,接着将物料排入至冷混机冷却,冷却完毕后排出,得到挤出用料;
2)将1)步骤中得到的挤出用料移入锥形双螺杆挤出机中挤出成型,即可得到高强度PVC发泡管道。
进一步地,1)步骤中低速为380-420rpm,搅拌时间为4.5-5.2min;在高速为1150-1250rpm下,搅拌物料至100-110℃。
进一步地,1)步骤中冷却温度为40-48℃。
进一步地,2)步骤中锥形双螺杆挤出机的机筒温度为155-170℃,口模出口处温度为180-200℃,螺杆转速为25-35pm,喂料转速为26-34rpm。
本发明的原理如下:
乙烯-醋酸乙烯酯共聚物(EVA)会在PVC初级粒子周围形成类似网络结构或准网络结构的连续相,能够对中央的PVC粒子起到保护的作用;当整个共混合金受到外力冲击时,网络结构的弹性体会起到传递、分散、缓冲和吸收能量的作用,避免局部应力集中而导致的PVC断裂,同时弹性体断裂时也会引发银纹和剪切带来吸收冲击能量从而提高材料韧性;
此外,EVA的柔性连段会改善PVC基体的刚性,从而使得发泡量增多,泡孔更为均匀,减少应力集中的情况,从而提高发泡管道的自身强度;EVA材料具有的耐候性,热稳定性优于PVC,故加入后会使PVC发泡管道的耐候性及热稳定性得到提高。
经硅烷改性后Nano-SiO2与PVC基体的相容性较好,改性Nano-SiO2在基体中均匀呈现出圆形状态,当受到外力作用时,Nano-SiO2会首先发生形变,在形变过程中,吸收了应力作用于基体产生的能量,从而提高了发泡管道的韧性。此外,在发泡过程中Nano-SiO2充当成核剂的作用,降低成核势能,增加成核数,从而增大了泡孔密度和均匀度,减小了泡孔直径,从而提高了发泡管道的力学强度,并且提高了复合体系的热稳定性能。
与现有技术相比较,本发明的有益效果如下:
1)本发明中添加的乙烯-醋酸乙烯酯共聚物(EVA)的柔性连段能够改善PVC机体的刚性,从而使得发泡量增多,泡孔更为均匀,减少应力集中的情况,从而提高了发泡管道的自身强度;
2)本发明中添加的硅烷改性纳米二氧化硅,增大了泡孔密度和均匀度,减小了泡孔直径,从而提高了发泡管道的力学强度;
3)与市面产品相比,采用本发明制备方法制备的PVC发泡管道,发泡数大、泡孔直径小且均匀,力学强度增强;
4)本发明的PVC发泡管道保温降噪性能优异,抗冲强度增强,耐候性及热稳定型提高。
具体实施方式
下面结合具体实施例对本发明作进一步地说明,但本发明所保护的范围不限于所述范围。
实施例1
1)取PVC树脂粉100份、外润滑剂1.0份、内润滑剂1.0份、脱模剂0.2份、稳定剂2份、乙烯-醋酸乙烯酯共聚物2.5份,硅烷改性纳米二氧化硅3份,发泡剂偶氮二甲酰胺3份及发泡调节剂4份加至高速混料机中,在410转/min搅拌5min初步混合,随后调节至高速,在1200转/min下搅拌物料至105℃,接着将物料排入冷混机冷却至45℃,冷却完毕后排出,得到挤出用料;
2)将挤出用料移入锥形双螺杆挤出机中,机筒温度为155℃,口模出口处温度为190℃,螺杆转速为30rpm,喂料转速为30rpm,挤出成型即得到高强度PVC发泡管道,标记为PVC发泡管1。
本发明依据GB/T 9647-2015《热塑性塑料管材环刚度的测定》进行环刚度测试;依据GB/T14152-2001《热塑性塑料管材耐外冲击性能试验方法》进行落锤冲击测试;依据GB/T8802-2001《热塑性塑料管材、管件维卡软化温度的测定》进行维卡软化温度测试;依据ISO22007-2008《塑料·热传导率和热扩散率的测定》进行导热系数测试;依据GB/T 19466.6-2009《塑料差示扫描量热法(DSC)第6部分:氧化诱导时间(OIT)和氧化诱导温度(动态OIT)的测定》对进行氧化诱导时间测试;依据CJ/T 312-2009《建筑排水管道系统噪声测试方法》进行噪声声压级测试(排水量2L/s);依据Image-pro Plus软件统计及SEM图综合分析泡孔密度。
对实施例1制备的PVC发泡管1和市面售出的PVC发泡管进行性能测试,其结果如下表所示:
实施例2
1)取PVC树脂粉100份、外润滑剂1.0份、内润滑剂1.0份、脱模剂0.2份、稳定剂2份、乙烯-醋酸乙烯酯共聚物5份,硅烷改性纳米二氧化硅4份,发泡剂偶氮二甲酰胺4份及发泡调节剂6份加至高速混料机中,在410转/min搅拌5min初步混合,随后调节至高速,在1200转/min下搅拌物料至105℃,接着将物料排入冷混机冷却至45℃,冷却完毕后排出,得到挤出用料;
2)将挤出用料移入锥形双螺杆挤出机中,机筒温度为160℃,口模出口处温度为190℃,螺杆转速为30rpm,喂料转速为30rpm,挤出成型即得到高强度PVC发泡管道,标记为PVC发泡管2。
本发明依据GB/T 9647-2015《热塑性塑料管材环刚度的测定》进行环刚度测试;依据GB/T14152-2001《热塑性塑料管材耐外冲击性能试验方法》进行落锤冲击测试;依据GB/T8802-2001《热塑性塑料管材、管件维卡软化温度的测定》进行维卡软化温度测试;依据ISO22007-2008《塑料·热传导率和热扩散率的测定》进行导热系数测试;依据GB/T 19466.6-2009《塑料差示扫描量热法(DSC)第6部分:氧化诱导时间(OIT)和氧化诱导温度(动态OIT)的测定》对进行氧化诱导时间测试;依据CJ/T 312-2009《建筑排水管道系统噪声测试方法》进行噪声声压级测试(排水量2L/s);依据Image-pro Plus软件统计及SEM图综合分析泡孔密度。
对实施例2制备的PVC发泡管2和市面售出的PVC发泡管进行性能测试,其结果如下表所示:
实施例3
1)取PVC树脂粉100份、外润滑剂1.0份、内润滑剂1.0份、脱模剂0.2份、稳定剂2份、乙烯-醋酸乙烯酯共聚物7.5份,硅烷改性纳米二氧化硅5份,发泡剂偶氮二甲酰胺5份及发泡调节剂8份加至高速混料机中,在410转/min搅拌5min初步混合,随后调节至高速,在1200转/min下搅拌物料至105℃,接着将物料排入冷混机冷却至45℃,冷却完毕后排出,得到挤出用料;
2)将挤出用料移入锥形双螺杆挤出机中,机筒温度为170℃,口模出口处温度为190℃,螺杆转速为30rpm,喂料转速为30rpm,挤出成型即得到高强度PVC发泡管道,标记为PVC发泡管3。
本发明依据GB/T 9647-2015《热塑性塑料管材环刚度的测定》进行环刚度测试;依据GB/T14152-2001《热塑性塑料管材耐外冲击性能试验方法》进行落锤冲击测试;依据GB/T8802-2001《热塑性塑料管材、管件维卡软化温度的测定》进行维卡软化温度测试;依据ISO22007-2008《塑料·热传导率和热扩散率的测定》进行导热系数测试;依据GB/T 19466.6-2009《塑料差示扫描量热法(DSC)第6部分:氧化诱导时间(OIT)和氧化诱导温度(动态OIT)的测定》对进行氧化诱导时间测试;依据CJ/T 312-2009《建筑排水管道系统噪声测试方法》进行噪声声压级测试(排水量2L/s);依据Image-pro Plus软件统计及SEM图综合分析泡孔密度。
对实施例3制备的PVC发泡管3和市面售出的PVC发泡管进行性能测试,其结果如下表所示:
Claims (6)
1.一种高强度PVC发泡管道,其特征在于包括以下重量份的原料:
PVC树脂粉100份、外润滑剂1-1.2份、内润滑剂1-1.2份、脱模剂0.2-0.4份、稳定剂1.5-2.5份、乙烯-醋酸乙烯酯共聚物2.5-5.0份,硅烷改性纳米二氧化硅3-5份,发泡剂偶氮二甲酰胺3-5份,发泡调节剂4-8份。
2.根据权利要求1所述的高强度PVC发泡管道,其特征在于所述PVC树脂粉为DG-800型。
3.一种如权利要求1所述的高强度PVC发泡管道的制备方法,其特征在于包括具体如下步骤:
1)取PVC树脂粉、外润滑剂、内润滑剂、脱模剂、稳定剂、乙烯-醋酸乙烯酯共聚物,硅烷改性纳米二氧化硅,发泡剂偶氮二甲酰胺及发泡调节剂加至高速混料机中,在低速下搅拌初步混合,随后调节至高速,在高速下搅拌物料,接着将物料排入至冷混机冷却,冷却完毕后排出,得到挤出用料;
2)将1)步骤中得到的挤出用料移入锥形双螺杆挤出机中挤出成型,即可得到高强度PVC发泡管道。
4.根据权利要求3所述的一种高强度PVC发泡管道的制备方法,其特征在于1)步骤中低速为380-420rpm,搅拌时间为4.5-5.2min;在高速为1150-1250rpm下,搅拌物料至100-110℃。
5.根据权利要求3所述的一种高强度PVC发泡管道的制备方法,其特征在于1)步骤中冷却温度为40-48℃。
6.根据权利要求3所述的一种高强度PVC发泡管道的制备方法,其特征在于2)步骤中锥形双螺杆挤出机的机筒温度为155-170℃,口模出口处温度为180-200℃,螺杆转速为25-35rpm,喂料转速为26-34rpm。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310117180.0A CN116199982A (zh) | 2023-02-15 | 2023-02-15 | 一种高强度pvc发泡管道及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310117180.0A CN116199982A (zh) | 2023-02-15 | 2023-02-15 | 一种高强度pvc发泡管道及其制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN116199982A true CN116199982A (zh) | 2023-06-02 |
Family
ID=86515493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202310117180.0A Pending CN116199982A (zh) | 2023-02-15 | 2023-02-15 | 一种高强度pvc发泡管道及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN116199982A (zh) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102391591A (zh) * | 2011-07-28 | 2012-03-28 | 联塑市政管道(河北)有限公司 | 一种聚氯乙烯电力护套管及其加工方法 |
CN103289390A (zh) * | 2013-06-21 | 2013-09-11 | 苏州新区佳合塑胶有限公司 | 增强pa66组合物 |
CN108017858A (zh) * | 2018-01-08 | 2018-05-11 | 安徽以诺木塑板材科技有限公司 | 一种耐水pvc木塑发泡复合材料及其制备方法 |
CN113912904A (zh) * | 2021-10-20 | 2022-01-11 | 常州大学 | 一种共混填充改性pet发泡材料及其成型方法 |
CN114196142A (zh) * | 2022-01-20 | 2022-03-18 | 南通慧源塑胶有限公司 | 一种pvc改性发泡材料及其成型方法 |
CN114230944A (zh) * | 2022-01-14 | 2022-03-25 | 临海伟星新型建材有限公司 | 一种高韧性易折弯可视化电工套管及其制备方法 |
CN114605753A (zh) * | 2022-03-16 | 2022-06-10 | 临海伟星新型建材有限公司 | 一种高抗冲生物质基pvc-u管道及其制备方法 |
-
2023
- 2023-02-15 CN CN202310117180.0A patent/CN116199982A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102391591A (zh) * | 2011-07-28 | 2012-03-28 | 联塑市政管道(河北)有限公司 | 一种聚氯乙烯电力护套管及其加工方法 |
CN103289390A (zh) * | 2013-06-21 | 2013-09-11 | 苏州新区佳合塑胶有限公司 | 增强pa66组合物 |
CN108017858A (zh) * | 2018-01-08 | 2018-05-11 | 安徽以诺木塑板材科技有限公司 | 一种耐水pvc木塑发泡复合材料及其制备方法 |
CN113912904A (zh) * | 2021-10-20 | 2022-01-11 | 常州大学 | 一种共混填充改性pet发泡材料及其成型方法 |
CN114230944A (zh) * | 2022-01-14 | 2022-03-25 | 临海伟星新型建材有限公司 | 一种高韧性易折弯可视化电工套管及其制备方法 |
CN114196142A (zh) * | 2022-01-20 | 2022-03-18 | 南通慧源塑胶有限公司 | 一种pvc改性发泡材料及其成型方法 |
CN114605753A (zh) * | 2022-03-16 | 2022-06-10 | 临海伟星新型建材有限公司 | 一种高抗冲生物质基pvc-u管道及其制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102212237B (zh) | 一种超强抗震聚氯乙烯管材的制备方法 | |
CN109456563A (zh) | 一种uhmwpe合金增容增韧改性聚丙烯波纹管专用料及其制备方法 | |
CN109651783A (zh) | 一种微发泡天然纤维增强聚乳酸复合材料及其制备方法 | |
CN106142792A (zh) | 一种轻质片材及其制备方法 | |
CN115124776B (zh) | 一种天然竹纤维改性pe或pp复合材料及其制备方法 | |
CN111393812A (zh) | 一种pla/eva超临界发泡复合材料及其制备方法 | |
CN109337192A (zh) | 一种聚丙烯复合材料及其制备方法 | |
CN104017265A (zh) | 一种超高分子量聚乙烯复合管 | |
CN109422969A (zh) | 一种基于evoh的高气体阻隔性热塑性硫化胶及其制备方法 | |
CN116199982A (zh) | 一种高强度pvc发泡管道及其制备方法 | |
CN108314834B (zh) | 一种改性线性低密度聚乙烯材料及其制备方法 | |
CN105733116B (zh) | 一种耐磨导电性高的pe-ps合金及其制备方法 | |
CN112280260A (zh) | 一种高阻隔pla/pbat复合包装膜 | |
CN114656690B (zh) | 改性玄武岩鳞片材料及其制备方法、含有改性玄武岩鳞片材料的hdpe双壁波纹管 | |
CN115627028A (zh) | 一种原位微纤化增强聚合物复合隔热泡沫材料及其制备方法和应用 | |
CN110172216B (zh) | 地下综合管廊电力保护用聚氯乙烯实壁管及其制备方法 | |
CN114773837A (zh) | 一种高耐磨低温冲击尼龙脚轮材料及其制备方法 | |
WO2007073803A2 (en) | Fibre reinforced polypropylene foam | |
CN109535506B (zh) | 一种发泡导电热塑性动态硫化橡胶复合材料及其制备方法 | |
CN113214577A (zh) | 一种超细活性碳酸钙填充的硬聚氯乙烯管件及其制备方法 | |
CN110964264A (zh) | 一种耐热型mpp电缆保护管及其制备方法 | |
CN114454568B (zh) | 煤矿用抽放瓦斯高抗冲pvc管材及其制备方法 | |
CN111019240A (zh) | 一种注塑发泡用聚丙烯复合材料及其制备方法 | |
CN106883531A (zh) | 一种耐冲击耐热pvc管材及其制备方法 | |
CN116144115A (zh) | 埋地式改性聚丙烯电缆保护管及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |