Tasirin Humidity na Muhalli akan PTFE Emulsion Impregnation

A cikin ainihin tsarin samar da kayan 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. Ana daidaita ƙimar ƙawancen don ya zama ƙasa kaɗan fiye da adadin jigilar ruwa na capillary a cikin emulsion a cikin hanyar sadarwa ta 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 na Newtonian ba wanda ya ƙunshi barbashi na guduro na PTFE (lokacin tarwatsawa), 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 ƙwayoyin 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 cire zafi mai yawa, wanda zai iya haifar da faɗuwar zafin jiki na gida kwatsam, yana lalata emulsion thermodynamically da haifar da hazo mai zurfi, wanda zai haifar da 'bawo orange' ko kauri mara kyau a cikin Layer ɗin da ba a ciki ba.

Yanayin zafi mai girma : An hana ƙawancen ruwa, kuma emulsion ya kasance a cikin yanayin rigar ƙarancin danko a kan ma'auni na dogon lokaci. Don a tsaye ko madaidaicin madauri, sagging cikin sauƙi yana faruwa a ƙarƙashin nauyi; don ƙoshin ruwa mai tsafta, zafi mai zafi na iya hana fitar da iskar gas a cikin ma'aunin, samar da microbubbles waɗanda ke tasowa zuwa lahani na pinhole yayin sintirin 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 ƙawancewar ruwa don damfara ɓangarorin cikin madaidaicin madauri. Matsakaicin ƙarancin zafi yana haifar da ƙaƙƙarfan ƙaruwa a cikin matsi na capillary gradient da bushewar bushewa da yawa fiye da 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. Yanayin zafi mai zafi yana shimfiɗa tagar bushewa, yana ba da isasshen lokaci don abubuwan da ke sama su taru a saman, suna samar da ''surface oil slick'' 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 (rashin haɗin kai tsakanin 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 yin vaporize nan take a lokacin sintering na gaba (kimanin 327-400 ° C) tare da faɗaɗa 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, kuma yana haifar da blisters ko ɓarkewa yayin daɗaɗɗa 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 (ƙarashin bushewa)  yana haifar da: rashin shigar ciki mara kyau, toshe matakin daidaitawa (raƙuman raƙuman ruwa), bushewar fashe, da rarraba raƙuman ruwa mara kyau.

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.