Tun lokacin da Dupont ya fara samar da PTFE a cikin 1945, shekaru 61 kenan.Yanzu a matsayin samfur mai mahimmanci na PTFEPTFE microporous fimAna amfani da shi sosai, yana faɗaɗa filin daga injiniyan halittu zuwa masana'antar sutura, daga masana'antar injiniya zuwa masana'antar petrochemical, a cikin masana'antar kariyar muhalli ana iya amfani dashi ba kawai don ayyukan kula da ruwa ba, har ma don tsarkakewar iska.Ana iya cewa kewayon aikace-aikacen sa har yanzu yana da faɗi sosai.
Halayen polytetrafluoroethylene
1. Halayen tsarin kwayoyin halitta
2. Chemical kwanciyar hankali
3. Thermal Properties
4. Mechanical Properties
5. Kayan lantarki
6. Surface Properties
Haɓaka fim ɗin microporous na PTFE
A halin yanzu, samar da tsari naPTFE microporous fimyana da tsarin fim na calending, hanyar juya fim da hanyar fim mai shimfiɗa.Za a iya raba hanyar fim mai shimfiɗa zuwa shimfiɗa ta hanya ɗaya da kuma shimfiɗa ta biyu, ta hanyar nazarin tsari da ma'auni na ainihi, kawai nau'i biyu na shimfidawa yana da kyakkyawan tsarin microporous.Ana nuna tsarin samar da fim ɗin microporous PTFE biaxally daidaitacce a cikin adadi.
Aikace-aikacen fim ɗin microporous PTFE
1. Aikace-aikace a cikin kayan tacewa
2. Aikace-aikace a cikin kayan aikin likita
Shiri na PTFE fim
1. Pre-tsari na PTFE microporous fim
2. Tsarin shiri
3. Tsarin samarwa
Tasirin sigogin aiki akan kaddarorin fina-finai na PTFE
Abubuwan da ke haifar da kaddarorin fina-finai na PTFE microporous a cikin tsarin shimfidawa na biaxial da pre-tsari suna da rikitarwa da yawa.Bugu da ƙari ga aikin kayan aiki na kayan aiki, zafin jiki na shimfiɗawa da ƙaddamarwa, sauran abubuwan da ke tasiri sune: zafin aiki, zafi mai aiki.
Yanayin aiki: Fina-finan PTFE suna da mahimmanci ga zafin jiki, kuma yanayin yanayin aiki daban-daban na iya haifar da kaddarorin fim daban-daban.Zazzabi shine ma'aunin aiki mai mahimmanci ba kawai a cikin tsarin shimfidawa ba, har ma a cikin sarrafa guduro na PTFE da matakan tsaka-tsaki.
Humidity Aiki: Danshi ya dogara da zafin jiki kuma ba za'a iya tattaunawa ba tare da zafin jiki ba.Yanayin yanayi shima yana da tasiri akan fim din.
PTFE yana da ingantaccen kwanciyar hankali na sinadarai, kyakkyawan aiki mai girma da ƙarancin zafin jiki da juriya na lalata, kuma ana amfani dashi ko'ina a cikin sinadarai, man fetur, yadi, lantarki da masana'antu.A halin yanzu, da karfi hydrophobic da porous Properties na PTFE sanya shi manufa membrane abu ga shiri na hana ruwa da kuma numfashi zaruruwa da kuma membrane distillation da membrane contactors.Idan aka kwatanta da sauran kayan membrane, ePTFE membrane shine kawai membrane wanda za'a iya amfani dashi a tsaye na dogon lokaci tare da babban adadin canja wurin taro, da fa'idodin ƙananan girman, ƙarfin tallafi mai ƙarfi da babban nauyin ɗimbin yawa na membranes fiber mai zurfi. PTFE m fiber membranes janyo hankalin da yawa da hankali a cikin filin na membrane contactors.
Ana shirya ɓangarorin ƙwararrun fiber na PTFE ta hanyar zane-zane, kuma tsarin shirye-shiryen ya haɗa da haɗawa, jujjuyawar extrusion, shimfiɗa unidirectional da sintering.Cikakken kayan PTFE da aka haɗe an riga an danna shi akan latsa mara kyau don yin babur silinda.Ana fitar da wuraren da aka riga aka danne su kuma ana jujjuya su a 40-100 ° C.Bayan degreasing, zafi-saitin don samun PTFE m fiber membrane.Rage yawan zafin jiki shine 200-340 ° C, yanayin yanayin zafi shine 330-400 ° C, lokacin saitin zafi shine 45-500 s.Siffar da ba a iya gani ba ita ce tsarin pore kusan madauwari (elliptical ko madauwari).
Lokacin aikawa: Janairu-18-2022