{"title":"含有不锈钢纤维的针刺复合无纺布的电磁屏蔽效果","authors":"Ali Beyit, Mustafa Sabri Özen, E. Sancak","doi":"10.35530/it.075.01.202346","DOIUrl":null,"url":null,"abstract":"In the study, electromagnetic shielding efficiency (EMSE) absorption and reflectivity properties of fabric produced from\nstaple stainless-steel fibres and recycled staple polyester fibres by carding and needling technologies were investigated.\nThe bi-component core/sheath polyester fibres at a fixed ratio of 20% in producing all nonwoven fabrics were used. The\nstaple stainless-steel fibres and recycled staple polyester fibres were blended at 13 different ratios such as 1%, 2.5%,\n5%, 7.5%, 10%, 12.5%, 15%, 17.5%, 20%, 22.5%, 25%, 27.5%, 30%. The fibre webs were formed at wool type carding\nmachine and then the folded webs were bonded mechanically with needle punching machines. Half of the produced\nnonwoven composite fabrics were bonded by thermal bonding technology with oven and calender machines. As the\nconductive fibres were costly, the study aimed to obtain optimum shielding effectiveness with the usage of minimum\nconductive fibres. Electromagnetic shielding properties, absorption and reflection characteristics of needle-punched\nnonwoven fabrics with calendered or un-calendered were performed by coaxial transmission line method according to\nASTM-D4935-10 in the frequency range of 15 MHz to 3000 MHz. It is a known fact that electromagnetic shielding\neffectiveness increases with the increase in the amount of conductive fibre. It was found that nonwoven fabric produced\nwith a usage of 17.5% stainless steel fibre has at least 90% electromagnetic shielding percentage in general use with\n15 dB at a frequency of 1800 MHz. Increased stainless steel fibre content in nonwoven fabrics resulted in decreased\nnonwoven fabric thickness and tensile strength. Such a nonwoven composite material with electromagnetic shielding\nproperty could be used for construction and building applications.","PeriodicalId":13638,"journal":{"name":"Industria Textila","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electromagnetic shielding effectiveness of needle-punched composite\\nnonwoven fabrics with stainless steel fibres\",\"authors\":\"Ali Beyit, Mustafa Sabri Özen, E. Sancak\",\"doi\":\"10.35530/it.075.01.202346\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In the study, electromagnetic shielding efficiency (EMSE) absorption and reflectivity properties of fabric produced from\\nstaple stainless-steel fibres and recycled staple polyester fibres by carding and needling technologies were investigated.\\nThe bi-component core/sheath polyester fibres at a fixed ratio of 20% in producing all nonwoven fabrics were used. The\\nstaple stainless-steel fibres and recycled staple polyester fibres were blended at 13 different ratios such as 1%, 2.5%,\\n5%, 7.5%, 10%, 12.5%, 15%, 17.5%, 20%, 22.5%, 25%, 27.5%, 30%. The fibre webs were formed at wool type carding\\nmachine and then the folded webs were bonded mechanically with needle punching machines. Half of the produced\\nnonwoven composite fabrics were bonded by thermal bonding technology with oven and calender machines. As the\\nconductive fibres were costly, the study aimed to obtain optimum shielding effectiveness with the usage of minimum\\nconductive fibres. Electromagnetic shielding properties, absorption and reflection characteristics of needle-punched\\nnonwoven fabrics with calendered or un-calendered were performed by coaxial transmission line method according to\\nASTM-D4935-10 in the frequency range of 15 MHz to 3000 MHz. It is a known fact that electromagnetic shielding\\neffectiveness increases with the increase in the amount of conductive fibre. It was found that nonwoven fabric produced\\nwith a usage of 17.5% stainless steel fibre has at least 90% electromagnetic shielding percentage in general use with\\n15 dB at a frequency of 1800 MHz. Increased stainless steel fibre content in nonwoven fabrics resulted in decreased\\nnonwoven fabric thickness and tensile strength. Such a nonwoven composite material with electromagnetic shielding\\nproperty could be used for construction and building applications.\",\"PeriodicalId\":13638,\"journal\":{\"name\":\"Industria Textila\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2024-02-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Industria Textila\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.35530/it.075.01.202346\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, TEXTILES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industria Textila","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.35530/it.075.01.202346","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, TEXTILES","Score":null,"Total":0}
Electromagnetic shielding effectiveness of needle-punched composite
nonwoven fabrics with stainless steel fibres
In the study, electromagnetic shielding efficiency (EMSE) absorption and reflectivity properties of fabric produced from
staple stainless-steel fibres and recycled staple polyester fibres by carding and needling technologies were investigated.
The bi-component core/sheath polyester fibres at a fixed ratio of 20% in producing all nonwoven fabrics were used. The
staple stainless-steel fibres and recycled staple polyester fibres were blended at 13 different ratios such as 1%, 2.5%,
5%, 7.5%, 10%, 12.5%, 15%, 17.5%, 20%, 22.5%, 25%, 27.5%, 30%. The fibre webs were formed at wool type carding
machine and then the folded webs were bonded mechanically with needle punching machines. Half of the produced
nonwoven composite fabrics were bonded by thermal bonding technology with oven and calender machines. As the
conductive fibres were costly, the study aimed to obtain optimum shielding effectiveness with the usage of minimum
conductive fibres. Electromagnetic shielding properties, absorption and reflection characteristics of needle-punched
nonwoven fabrics with calendered or un-calendered were performed by coaxial transmission line method according to
ASTM-D4935-10 in the frequency range of 15 MHz to 3000 MHz. It is a known fact that electromagnetic shielding
effectiveness increases with the increase in the amount of conductive fibre. It was found that nonwoven fabric produced
with a usage of 17.5% stainless steel fibre has at least 90% electromagnetic shielding percentage in general use with
15 dB at a frequency of 1800 MHz. Increased stainless steel fibre content in nonwoven fabrics resulted in decreased
nonwoven fabric thickness and tensile strength. Such a nonwoven composite material with electromagnetic shielding
property could be used for construction and building applications.
期刊介绍:
Industria Textila journal is addressed to university and research specialists, to companies active in the textiles and clothing sector and to the related sectors users of textile products with a technical purpose.