Tasirin Humidity na Muhalli akan PTFE Emulsion Impregnation

A cikin ainihin tsarin samar da zane mai zafi na PTFE ta Jiangsu Aokai New Materials, yawancin yanayin zafi ana sarrafa shi a cikin takamaiman kewayon 40% -60% RH , haɗe tare da tsarin zafin jiki. An daidaita ƙimar ƙawancen don ya zama ƙasa kaɗan fiye da adadin jigilar ruwa na capillary a cikin emulsion a cikin cibiyar sadarwar capillary, yana tabbatar da cikakken shigar ciki da daidaitawar emulsion yayin samun nasara mara lahani, fina-finai na PTFE masu yawa.

Babban tasirin zafi na muhalli akan PTFE emulsion impregnation ya ta'allaka ne a cikin ma'auni mai ƙarfi tsakanin ƙimar evaporation na ruwa da kwanciyar hankali na emulsion. PTFE emulsion yawanci ruwa ne wanda ba Newtonian ba wanda ya ƙunshi barbashi na guduro na PTFE (lokacin tarwatse), surfactants, stabilizers, da ruwa (ci gaba da lokaci). A matsayin ma'auni na muhalli, zafi yana daidaita ƙayyadaddun motsin ƙarfi na ƙarfi (ruwa), yana yin tasiri na asali kamar haka:

1. Muhimman Abubuwan Tasiri akan Tsarin Tsari

A impregnation mataki na bukatar emulsion yadda ya kamata shiga cikin pores ko fiber gibba na substrate (misali, gilashin fiber zane, karfe raga).

Ƙananan yanayin zafi : Ruwa yana ƙafe da sauri, yana haifar da emulsion zuwa 'surface-bushe' da sauri a kan ƙasa. Wannan yana ƙara ƙarar ɗankowar emulsion a cikin mu'amala, yana hana shigar da barbashi na guduro a cikin ƙasa mai zurfi kuma yana haifar da 'ƙasa impregnation' - wato, sauran aljihunan iska a cikin substrate. A halin yanzu, saurin ƙanƙara yana kawar da zafi mai yawa, wanda zai iya haifar da faɗuwar zafin jiki na gida kwatsam, yana lalata emulsion thermodynamically da haifar da hazo sama, yana haifar da 'bawo ruwan lemu' ko kauri marar daidaituwa a cikin Layer ɗin da ke ciki.

Yanayin zafi mai girma : An hana ƙawancewar ruwa, kuma emulsion ya kasance a cikin yanayin rigar ƙarancin danko akan ma'aunin na dogon lokaci. Don a tsaye ko madaidaicin madauri, sagging cikin sauƙi yana faruwa a ƙarƙashin nauyi; don ƙwanƙwasa na musamman na hygroscopic, zafi mai zafi na iya hana fitar da iskar gas a cikin ƙasa, samar da microbubbles waɗanda ke haɓaka zuwa lahani na pinhole yayin sintering na gaba.

2. Muhimman Tasirin Ingantaccen Fina-Finan Karshe

Samuwar fim ɗin PTFE gabaɗaya ya ƙunshi matakai biyu: bushewa (kauwar ruwa) da ƙarancin zafin jiki (narkewar barbashi). Danshi ya fi shafar tsarin koren jiki a lokacin bushewa, wanda aka gada a cikin fim ɗin ƙarshe.

Fatsawa da damuwa na ciki : Samuwar fim ɗin ɓangarori na resin PTFE ya dogara da matsa lamba na capillary yayin fitar ruwa don damfara ɓangarorin cikin madaidaicin madaidaicin Layer. Matsakaicin ƙarancin zafi yana haifar da ƙaƙƙarfan haɓakar matsa lamba na capillary da raguwar bushewa da wuce kima, yana haifar da matsanancin damuwa na ciki a cikin koren jiki. Tun da PTFE ba ta da ikon warkar da kai kafin yin jima'i, irin wannan damuwa kai tsaye yana haifar da microcracks ko macroscopic fatattaka a cikin kore jiki. Ba za a iya kawar da waɗannan tsage-tsalle ba bayan yin gyare-gyare, yana haifar da zubar da fim ko rage ƙarfin injin.

Ƙaura da ƙaura : Surfactants (kamar madadin perfluorooctanoic acid) da ke cikin kasuwancin PTFE emulsions suna ƙaura tare da ƙafewar ruwa yayin bushewa. Wani yanayi mai zafi yana shimfiɗa tagar bushewa, yana ba da isasshen lokaci don masu hawan igiyar ruwa su taru a saman, suna samar da ''slick oil'' ko fata mai tauri. Idan wannan Layer bai cika bazuwa ba ko canzawa a farkon matakin sintering, zai zama carbonized kuma a sanya shi a cikin fim ɗin, yana haifar da yellowing, rage yawan yawa, kuma yana raunana mannewa sosai tsakanin PTFE da substrate (ƙasasshen haɗin tsaka-tsakin tsaka-tsaki saboda keɓewar gurɓataccen abu).

Girman fim da porosity : Kyakkyawan fim ɗin PTFE yakamata ya zama mara nauyi kuma mai yawa. Rashin kula da zafi mara kyau wanda ke haifar da saura danshi babban haɗari ne. Ƙarƙashin zafi mai zafi, idan ba a cire ruwa gaba ɗaya ba a lokacin dumama da bushewa, ragowar danshi yana vaporize nan take a lokacin sinterin na gaba (kimanin 327-400 ° C) tare da haɓaka ƙarar girma, haifar da busa ko blisters a cikin fim ɗin da aka narke. Sabanin haka, a ƙarƙashin ƙarancin zafi, saurin bushewa yana samar da fata da aka rufe wanda ke toshe ƙawancen ruwa na cikin gida, wanda kuma yana haifar da blisters ko ɓarkewa yayin datsewa saboda tarin tururi.

A ka'ida, tasirin zafi na muhalli akan sarrafa emulsion na PTFE shine ainihin shiga tsakani a cikin motsin ƙawancen ruwa:

Ƙananan  zafi (ƙaramar bushewa)  yana haifar da: rashin shigar ciki, toshe matakin (raguwar cavities), bushewar fashe, da rarraba raƙuman ruwa marasa daidaituwa.

Babban  zafi (yawan danshi)  yana haifar da: raguwa, ƙarar ramuka, yawan ruwa mai yawa, ƙumburi bayan datsewa, da rage mannewa.

ne ya samar da bayanin da ke sama. Jiangsu Aokai New Materials Technology Co., Ltd

Don cikakkun sigogi, yanayin aikace-aikacen da keɓaɓɓen mafita na kewayon samfuran mu, gami da PTFE high-zazzabi zane, PTFE high-zazzabi tef, PTFE high-zazzabi raga bel, sumul laminating bel, guda-gefe PTFE zane, high-zazzabi resistant conveyor bel, high-zafi lamba masana'anta, da dai sauransu gilashin masana'anta, da dai sauransu

·  Layin Sabis: Malam Guo 18944819998

·  Malam Liu 13705266308

Muna ɗaukan ƙwararrun falsafar sabis mai dogaro da gaskiya, kuma mun sadaukar da kai don samar muku da mafita ta tsayawa ɗaya da sabis na kulawa.