Article(id=1202250939508940893, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202250938762354779, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20220324, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1764568560721, onlineDateStr=2025-12-01, pubDate=1676822400000, pubDateStr=2023-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764568560721, onlineIssueDateStr=2025-12-01, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764568560721, creator=13701087609, updateTime=1764568560721, updator=13701087609, issue=Issue{id=1202250938762354779, tenantId=1146029695717560320, journalId=1189873562199433220, year='2023', volume='', issue='2', pageStart='1', pageEnd='71', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764568560543, creator=13701087609, updateTime=1764576113832, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1202282619619729669, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202250938762354779, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1202282619619729670, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1202250938762354779, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=16, endPage=19, ext={EN=ArticleExt(id=1202250939731239009, articleId=1202250939508940893, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Development of PA66 Cooling Hose for Vehicle, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Automotive cooling hose with polyamid(PA66) as the host material was developed to replace the long chain nylon materials (including PA12, PA612, PA11 and so on), which solved many disadvantages of long chain nylon materials such as costliness, resource shortage and complex production processes. This article firstly introduced the development of hydrolysis resistant and flexible PA66 material. Adding toughening agent and hydrolytic resistant agent to PA66 material through blending modification effectively improved toughness and hydrolytic resistance, and the material performance index conformed to usage requirement. Then conventional hose extrusion process was applied to PA66 modified material for hose extrusion trial production. The test shows that burst strength of PA66 hose is greater than 2.6 MPa, which is still greater than 1.8 MPa after long-term use of coolant resistant fluid, proving it comply with the basic use condition of vehicle.
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开发了以聚酰胺（PA66）为主体材料的汽车用冷却水管，代替长链尼龙材料（PA12、PA612、PA11等），解决了长链尼龙水管价格昂贵、资源短缺、生产工艺复杂的问题。首先介绍了耐水解柔性PA66材料的开发，通过共混改性加入增韧剂和耐水解剂，有效地提高了PA66材料的韧性和耐水解性，开发的材料性能指标符合使用要求。然后通过常规软管挤出工艺对PA66改性材料进行了软管挤出试制，经过测试，PA66软管的爆破强度>2.6 MPa，长期耐冷却液后爆破强度仍>1.8 MPa，满足整车应用的基本条件。
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张松峰（1992—），男，工程师，硕士学位，研究方向为汽车用非金属材料研究与应用。
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张松峰（1992—），男，工程师，硕士学位，研究方向为汽车用非金属材料研究与应用。
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张松峰（1992—），男，工程师，硕士学位，研究方向为汽车用非金属材料研究与应用。
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42(1): 121-125., articleTitle=尼龙66改性研究进展, refAbstract=null), Reference(id=1202250945490018589, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, doi=null, pmid=null, pmcid=null, year=2013, volume=41, issue=1, pageStart=105, pageEnd=109, url=null, language=null, rfNumber=[4], rfOrder=3, authorNames=宁冲冲, 崔益华, 吴银财, journalName=塑料科技, refType=null, unstructuredReference=宁冲冲, 崔益华, 吴银财, 等. 降低尼龙制品吸水率的研究进展[J].
塑料科技,
2013,
41(1): 105-109., articleTitle=降低尼龙制品吸水率的研究进展, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1202250941069222011, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, xref=null, ext=[AuthorCompanyExt(id=1202250941077610620, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, companyId=1202250941069222011, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Global R&D Center, China FAW Corporation Limited, Changchun 130013), AuthorCompanyExt(id=1202250941085999230, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, companyId=1202250941069222011, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中国第一汽车集团有限公司研发总院，长春 130013)])], figs=[ArticleFig(id=1202250943367700674, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=EN, label=null, caption=null, figureFileSmall=x0Y1rbY+PScp5mIGNGB5BA==, figureFileBig=tAkT/18AIPtgnB1vuDmoRA==, tableContent=null), ArticleFig(id=1202250943434809542, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=CN, label=图1, caption=
PA66改性材料耐冷却液老化后拉伸强度变化, figureFileSmall=x0Y1rbY+PScp5mIGNGB5BA==, figureFileBig=tAkT/18AIPtgnB1vuDmoRA==, tableContent=null), ArticleFig(id=1202250943619358923, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=EN, label=null, caption=null, figureFileSmall=MYy5VCBth8GJEMF+Mwp5wQ==, figureFileBig=MSxE9kBA0om0RtsaOyv3Gw==, tableContent=null), ArticleFig(id=1202250943694856399, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=CN, label=图2, caption=
PA66改性材料耐冷却液老化后断裂伸长率变化, figureFileSmall=MYy5VCBth8GJEMF+Mwp5wQ==, figureFileBig=MSxE9kBA0om0RtsaOyv3Gw==, tableContent=null), ArticleFig(id=1202250943770353874, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=EN, label=null, caption=null, figureFileSmall=7XGfkt+Vdr1Jn2OAOnY+QA==, figureFileBig=H7S1gyPCsN9SOqEdLD8+zg==, tableContent=null), ArticleFig(id=1202250943841657045, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=CN, label=图3, caption=
软管挤出生产工艺流程, figureFileSmall=7XGfkt+Vdr1Jn2OAOnY+QA==, figureFileBig=H7S1gyPCsN9SOqEdLD8+zg==, tableContent=null), ArticleFig(id=1202250943933931737, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=EN, label=null, caption=null, figureFileSmall=IxYhuEZEWgLbCdC1jPqrSw==, figureFileBig=JXEUSbzzcIOE9inYm9Cosw==, tableContent=null), ArticleFig(id=1202250943996846300, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=CN, label=图4, caption=
PA66挤出软管, figureFileSmall=IxYhuEZEWgLbCdC1jPqrSw==, figureFileBig=JXEUSbzzcIOE9inYm9Cosw==, tableContent=null), ArticleFig(id=1202250944110092512, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=EN, label=null, caption=null, figureFileSmall=SnhIeXbqCjBvxdz+lnNgPg==, figureFileBig=uE/a7l/ay4+5C11YY97u8A==, tableContent=null), ArticleFig(id=1202250944181395685, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=CN, label=图5, caption=
PA66挤出管的橘皮现象, figureFileSmall=SnhIeXbqCjBvxdz+lnNgPg==, figureFileBig=uE/a7l/ay4+5C11YY97u8A==, tableContent=null), ArticleFig(id=1202250944269476075, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 检验项目 | PA66改性材料 | 检验方法 |
| PA66-1 | PA66-2 | PA66-3 | PA66-4 | PA66-5 | PA66-6 |
| 密度/g·cm-2 | 1.013 | 1.022 | 1.020 | 1.018 | 1.018 | 1.207 | GB/T 1033.1—2008 |
| 拉伸强度/MPa | 33.4 | 30.6 | 33.4 | 31.9 | 34.0 | 24.2 | GB/T 1040.2—2022 |
| 拉断伸长率/% | 195 | 42.7 | 209 | 184 | 188 | 156 |
| 简支梁无缺口冲击强度/kJ·m-2 | 不断裂 | 不断裂 | 不断裂 | 不断裂 | 不断裂 | 不断裂 | GB/T 1043.1—2008 |
| 简支梁缺口冲击强度/kJ·m-2 | 88.6（H） | 16.7（C） | 59.6（H） | 60.4（H） | 39.3（H） | 31.1（H） |
), ArticleFig(id=1202250944357556465, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=CN, label=表1, caption=
开发的耐水解柔性PA66材料的物理性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| 检验项目 | PA66改性材料 | 检验方法 |
| PA66-1 | PA66-2 | PA66-3 | PA66-4 | PA66-5 | PA66-6 |
| 密度/g·cm-2 | 1.013 | 1.022 | 1.020 | 1.018 | 1.018 | 1.207 | GB/T 1033.1—2008 |
| 拉伸强度/MPa | 33.4 | 30.6 | 33.4 | 31.9 | 34.0 | 24.2 | GB/T 1040.2—2022 |
| 拉断伸长率/% | 195 | 42.7 | 209 | 184 | 188 | 156 |
| 简支梁无缺口冲击强度/kJ·m-2 | 不断裂 | 不断裂 | 不断裂 | 不断裂 | 不断裂 | 不断裂 | GB/T 1043.1—2008 |
| 简支梁缺口冲击强度/kJ·m-2 | 88.6（H） | 16.7（C） | 59.6（H） | 60.4（H） | 39.3（H） | 31.1（H） |
), ArticleFig(id=1202250944445636851, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| PA66改性材料 | PA66-1 | PA66-2 | PA66-3 | PA66-4 | PA66-5 | PA66-6 |
| 拉伸强度变化率/% | -34.4 | -18.3 | -24 | -31.3 | 38.8 | -10.5 |
| 拉断伸长率变化率/% | 26.7 | 490.0 | 7.7 | 0.0 | 6.4 | 62.2 |
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PA66改性材料耐冷却液老化后性能指标变化率
, figureFileSmall=null, figureFileBig=null, tableContent=
| PA66改性材料 | PA66-1 | PA66-2 | PA66-3 | PA66-4 | PA66-5 | PA66-6 |
| 拉伸强度变化率/% | -34.4 | -18.3 | -24 | -31.3 | 38.8 | -10.5 |
| 拉断伸长率变化率/% | 26.7 | 490.0 | 7.7 | 0.0 | 6.4 | 62.2 |
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| 烘干 | 挤出机温度/℃ | 牵引速度
/m·min-1 | 挤出工艺性 |
| 温度/℃ | 时间/h | 1区 | 2区 | 3区 | 4区 | 法兰 | 机头 | 模具 |
| 105±5 | 4±0.5 | 260~290 | 275±5 | 275±5 | 275±5 | 10~20 | 成功挤出 |
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挤出工艺参数
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| 烘干 | 挤出机温度/℃ | 牵引速度
/m·min-1 | 挤出工艺性 |
| 温度/℃ | 时间/h | 1区 | 2区 | 3区 | 4区 | 法兰 | 机头 | 模具 |
| 105±5 | 4±0.5 | 260~290 | 275±5 | 275±5 | 275±5 | 10~20 | 成功挤出 |
), ArticleFig(id=1202250944915398919, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 检验项目 | 行业指标值（长链尼龙软管） | PA66软管 |
| 爆破强度/MPa | 室温状态（23 ℃） | ≥1.50 | 2.68 |
| 高温状态（100 ℃） | ≥0.75 | 1.32 |
| 耐热老化后（120 ℃/500 h） | ≥0.75 | 3.84 |
| 耐冷却液后（100 ℃/500 h） | ≥1.00 | 1.81 |
耐低温冲击后
（-40 ℃/4 h） | ≥1.00 | 2.64 |
| 接头拔脱力/N | 室温状态（23 ℃） | ≥450 | 680 |
| 高温状态（100 ℃） | ≥120 | 282 |
| 低温弯曲性（-40 ℃/4 h，沿12倍软管外径的芯轴弯曲180°） | 无断裂 | 无断裂 |
| 耐真空度性（-95 kPa/3 min） | 不允许塌陷
变形 | 无塌陷
变形 |
), ArticleFig(id=1202250945045422347, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1202250939508940893, language=CN, label=表4, caption=
PA66软管性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| 检验项目 | 行业指标值（长链尼龙软管） | PA66软管 |
| 爆破强度/MPa | 室温状态（23 ℃） | ≥1.50 | 2.68 |
| 高温状态（100 ℃） | ≥0.75 | 1.32 |
| 耐热老化后（120 ℃/500 h） | ≥0.75 | 3.84 |
| 耐冷却液后（100 ℃/500 h） | ≥1.00 | 1.81 |
耐低温冲击后
（-40 ℃/4 h） | ≥1.00 | 2.64 |
| 接头拔脱力/N | 室温状态（23 ℃） | ≥450 | 680 |
| 高温状态（100 ℃） | ≥120 | 282 |
| 低温弯曲性（-40 ℃/4 h，沿12倍软管外径的芯轴弯曲180°） | 无断裂 | 无断裂 |
| 耐真空度性（-95 kPa/3 min） | 不允许塌陷
变形 | 无塌陷
变形 |
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