CN105482217A - 一种ldpe电磁屏蔽材料的制备方法 - Google Patents

一种ldpe电磁屏蔽材料的制备方法 Download PDF

Info

Publication number
CN105482217A
CN105482217A CN201510878074.XA CN201510878074A CN105482217A CN 105482217 A CN105482217 A CN 105482217A CN 201510878074 A CN201510878074 A CN 201510878074A CN 105482217 A CN105482217 A CN 105482217A
Authority
CN
China
Prior art keywords
ldpe
electromagnetic shielding
shielding material
preparation
coupling agent
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
Application number
CN201510878074.XA
Other languages
English (en)
Inventor
张宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing University of Science and Technology Changshu Research Institute Co Ltd
Original Assignee
Nanjing University of Science and Technology Changshu Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing University of Science and Technology Changshu Research Institute Co Ltd filed Critical Nanjing University of Science and Technology Changshu Research Institute Co Ltd
Priority to CN201510878074.XA priority Critical patent/CN105482217A/zh
Publication of CN105482217A publication Critical patent/CN105482217A/zh
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • 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
    • 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
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/066LDPE (radical process)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

本发明公开了一种LDPE电磁屏蔽材料的制备方法,制备步骤如下:步骤1:将炭黑、偶联剂、甲基硅油、正己烷在70-90℃的条件下回流混合搅拌30-90min;步骤2:加入聚异丁烯、AC、EVA和六溴环十二烷,在50-70℃下搅拌30-50min,再加入山梨醇酐月桂酸酯、DCP和十溴联苯醚,在60-80℃、转速在80-100r/min条件下,搅拌30-50min;步骤3:升温至80-100℃,加入LDPE100份、硬脂酸、阻燃剂、CPE、抗氧剂,混合100-120min,然后投入双螺杆挤出机。本发明大大提高了LDPE的电磁屏蔽效能,电磁屏蔽效能40-80db;本发明原料易得,断裂伸长率300-500%,冲击强度15-35kJ/m2,会得到广泛使用,并不断替代现有材料。

Description

一种LDPE电磁屏蔽材料的制备方法
技术领域
本发明涉及导电塑料领域,尤其涉及一种LDPE电磁屏蔽材料的制备方法。
背景技术
普通高分子材料在加工和使用过程中,静电现象十分严重,在某些情况下,不但会影响材料的使用性能,甚至还会造成危害,如降低感光胶片的使用性能;塑料包装材料的静电吸尘,降低了商品价值;易燃、易爆环境使用的各种塑料制品和电子产品,由于静电引起的火花爆炸及燃烧。所有这些都应该采用导电复合、材料,以提高材料的静电能力。
目前,如何设计一种电磁屏蔽效能高、拉伸强度高、断裂伸长率高、冲击强度高和体积电阻率低的LDPE电磁屏蔽材料是很重要的。
发明内容
本发明针对现有LDPE电磁屏蔽材料中的电磁屏蔽效能、拉伸强度、断裂伸长率、冲击强度低和体积电阻率高的技术问题而提供一种LDPE电磁屏蔽材料的制备方法。
实现本发明目的而采用以下技术方案:一种LDPE电磁屏蔽材料的制备方法,其制备步骤如下:
步骤1:将炭黑10-50份、偶联剂0.1-2份、甲基硅油5-10份、正己烷15-20份在70-90℃的条件下回流混合搅拌30-90min;
步骤2:加入聚异丁烯30-50份、AC15-35份、EVA30-70份和六溴环十二烷10-30份,在50-70℃下搅拌30-50min,再加入山梨醇酐月桂酸酯8-12份、DCP0.02-0.08份和十溴联苯醚3-7份,在60-80℃、转速在80-100r/min条件下,搅拌30-50min;
步骤3:升温至80-100℃,加入LDPE100份、硬脂酸2-6份、阻燃剂4-8份、CPE40-80份、抗氧剂50-70,混合100-120min,然后投入双螺杆挤出机,挤出温度130-140℃、140-150℃、150-160℃、160-170℃,螺杆转速20-40r/min。
优选的,本发明所述偶联剂采用NDZ-401钛酸酯偶联剂或异丁基三乙氧基硅烷偶联剂。
更优选的,本发明所述阻燃剂采用三氧化二锑或氢氧化铝。
进一步优选的,本发明所述抗氧剂采用抗氧剂DNP或抗氧剂DLTP。
本发明的有益效果:本发明所述一种LDPE电磁屏蔽材料采用以上技术方案与现有技术相比,具有以下技术效果:1、大大提高了LDPE的电磁屏蔽效能,电磁屏蔽效能40-60db;2、阻燃性好,离火自熄,无熔滴;3、体积电阻率5-7.5Ω·cm,导电性能优异,拉伸强度20-40MPa;4、原料易得,断裂伸长率300-410%,冲击强度15-28kJ/m2,会得到广泛使用,并不断替代现有材料;5、本发明原料中的甲基硅油具有优异的润滑性,提高了材料的加工性。
具体实施方式
下面结合实施例对本发明作进一步地描述。
实施例1
步骤1:将炭黑10份、异丁基三乙氧基硅烷0.1份、甲基硅油8份、正己烷18份在70℃的条件下回流混合搅拌90min;
步骤2:加入聚异丁烯30份、AC15份、EVA30份和六溴环十二烷10份,在50℃下搅拌30min,再加入山梨醇酐月桂酸酯8份、DCP0.02份和十溴联苯醚3份,在60℃、转速在100r/min条件下,搅拌30min;
步骤3:升温至80℃,加入LDPE100份、硬脂酸2份、氢氧化铝4份、CPE40份、抗氧剂DLTP50份,混合100min,然后投入双螺杆挤出机,挤出温度130℃、140℃、160℃、170℃,螺杆转速40r/min。
本实施例大大提高了LDPE的电磁屏蔽效能,电磁屏蔽效能40db;阻燃性好,离火自熄,无熔滴;体积电阻率5Ω·cm,导电性能优异,拉伸强度20MPa;原料易得,断裂伸长率300%,冲击强度15kJ/m2
实施例2
步骤1:将炭黑30份、异丁基三乙氧基硅烷1份、甲基硅油5份、正己烷15份在90℃的条件下回流混合搅拌30min;
步骤2:加入聚异丁烯50份、AC25份、EVA50份和六溴环十二烷30份,在60℃下搅拌50min,再加入山梨醇酐月桂酸酯12份、DCP0.05份和十溴联苯醚5份,在80℃、转速在80r/min条件下,搅拌50min;
步骤3:升温至100℃,加入LDPE100份、硬脂酸6份、三氧化二锑6份、CPE60份、抗氧剂DNP60份,混合110min,然后投入双螺杆挤出机,挤出温度135℃、145℃、150℃、170℃,螺杆转速30r/min。
本实施例大大提高了LDPE的电磁屏蔽效能,电磁屏蔽效能50db;阻燃性好,离火自熄,无熔滴;体积电阻率6.3Ω·cm,导电性能优异,拉伸强度27MPa;原料易得,断裂伸长率340%,冲击强度18kJ/m2
实施例3
步骤1:将炭黑40份、异丁基三乙氧基硅烷2份、甲基硅油10份、正己烷20份在80℃的条件下回流混合搅拌60min;
步骤2:加入聚异丁烯50份、AC35份、EVA70份和六溴环十二烷20份,在70℃下搅拌40min,再加入山梨醇酐月桂酸酯10份、DCP0.08份和十溴联苯醚7份,在70℃、转速在90r/min条件下,搅拌40min;
步骤3:升温至90℃,加入LDPE100份、硬脂酸4份、三氧化二锑8份、CPE80份、抗氧剂DNP70份,混合120min,然后投入双螺杆挤出机,挤出温度140℃、150℃、160℃、170℃,螺杆转速20r/min。
本实施例大大提高了LDPE的电磁屏蔽效能,电磁屏蔽效能60db;阻燃性好,离火自熄,无熔滴;体积电阻率7.5Ω·cm,导电性能优异,拉伸强度40MPa;原料易得,断裂伸长率410%,冲击强度28kJ/m2
上述实施例只是用于对本发明的内容进行阐述,而不是限制,因此在与本发明的权利要求书相当的含义和范围内的任何改变,都应该认为是包括在权利要求书的范围内。

Claims (4)

1.一种LDPE电磁屏蔽材料的制备方法,其特征在于制备步骤如下:
步骤1:将炭黑10-50份、偶联剂0.1-2份、甲基硅油5-10份、正己烷15-20份在70-90℃的条件下回流混合搅拌30-90min;
步骤2:加入聚异丁烯30-50份、AC15-35份、EVA30-70份和六溴环十二烷10-30份,在50-70℃下搅拌30-50min,再加入山梨醇酐月桂酸酯8-12份、DCP0.02-0.08份和十溴联苯醚3-7份,在60-80℃、转速在80-100r/min条件下,搅拌30-50min;
步骤3:升温至80-100℃,加入LDPE100份、硬脂酸2-6份、阻燃剂4-8份、CPE40-80份、抗氧剂50-70份,混合100-120min,然后投入双螺杆挤出机,挤出温度130-140℃、140-150℃、150-160℃、160-170℃,螺杆转速20-40r/min。
2.根据权利要求1所述的一种LDPE电磁屏蔽材料的制备方法,其特征在于:所述偶联剂采用NDZ-401钛酸酯偶联剂或异丁基三乙氧基硅烷偶联剂。
3.根据权利要求1所述的一种LDPE电磁屏蔽材料的制备方法,其特征在于:所述阻燃剂采用三氧化二锑或氢氧化铝。
4.根据权利要求1所述的一种LDPE电磁屏蔽材料的制备方法,其特征在于:所述抗氧剂采用抗氧剂DNP或抗氧剂DLTP。
CN201510878074.XA 2015-12-04 2015-12-04 一种ldpe电磁屏蔽材料的制备方法 Pending CN105482217A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510878074.XA CN105482217A (zh) 2015-12-04 2015-12-04 一种ldpe电磁屏蔽材料的制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510878074.XA CN105482217A (zh) 2015-12-04 2015-12-04 一种ldpe电磁屏蔽材料的制备方法

Publications (1)

Publication Number Publication Date
CN105482217A true CN105482217A (zh) 2016-04-13

Family

ID=55669506

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510878074.XA Pending CN105482217A (zh) 2015-12-04 2015-12-04 一种ldpe电磁屏蔽材料的制备方法

Country Status (1)

Country Link
CN (1) CN105482217A (zh)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101205327A (zh) * 2007-12-01 2008-06-25 江苏恒峰线缆有限公司 中温正温度系数聚烯烃导电聚合物
CN104513418A (zh) * 2014-10-17 2015-04-15 苏州莱特复合材料有限公司 一种导电uhmwpe金属粉末复合材料及其制备方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101205327A (zh) * 2007-12-01 2008-06-25 江苏恒峰线缆有限公司 中温正温度系数聚烯烃导电聚合物
CN104513418A (zh) * 2014-10-17 2015-04-15 苏州莱特复合材料有限公司 一种导电uhmwpe金属粉末复合材料及其制备方法

Similar Documents

Publication Publication Date Title
CN104109306B (zh) 一种光纤线缆用绝缘电缆料及其制备方法
CN103289261B (zh) 一种含有改性聚氯乙烯树脂的电缆护套料及其制备方法
CN105482262A (zh) 一种阻燃高散热改性聚丙烯电力管材及其制备方法
CN101942150A (zh) 辐照交联氯化聚乙烯绝缘橡胶及其制备方法
CN103319793A (zh) 一种低气味电线电缆用绝缘橡胶及其制备方法
CN105034186B (zh) 光伏线缆护套层材料的制备方法
CN105153607A (zh) 一种绝缘电缆护套材料的制备方法
CN105778227A (zh) 一种沥青防裂防水高性能电缆料及其制备方法
CN106397934A (zh) 一种添加改性氮化硼硅橡胶导热绝缘增强的复合电缆料
CN104817789A (zh) 一种耐寒耐油高韧性聚氯乙烯电缆材料及其制备方法
CN104530545A (zh) 一种ul高温电子线用125℃辐照交联pe电缆料及其制备方法
CN105482217A (zh) 一种ldpe电磁屏蔽材料的制备方法
CN106589760A (zh) 一种酚醛树脂无烟阻燃数据线护套料及其制备方法
CN106189206A (zh) 一种阻燃塑胶材料
CN110982186A (zh) 一种电器连接线绝缘层及其制备方法
CN106084757A (zh) 一种环保塑胶材料
CN103524839B (zh) 一种高密度聚乙烯电缆护套料及其制备方法
CN105504546A (zh) 一种额定电压35kV以上橡套电力电缆用橡皮绝缘材料
CN107129628A (zh) 一种超韧阻燃pe及制备方法
CN108659391A (zh) 一种高gwit值pvc插头料及其制备方法
CN109054164A (zh) 一种低烟无卤阻燃交联聚烯烃护套料及其制备方法
CN106167616A (zh) 一种塑胶材料
CN105885430A (zh) 一种高耐磨抗拉环保型高铁电缆材料
CN106751369A (zh) 一种有机硅阻燃护套料及其制备方法
CN106397935A (zh) 一种添加纳米膨润土改性沥青的复合电缆料

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160413