Sharax farqiga u dhexeeya guddiga fiber galaas epoxy iyo guddiga PTFE si faahfaahsan

Maanta, waxaan jeclaan lahaa in aan idinla wadaago farqiga u dhexeeya epoxy galaas fiber board iyo guddiga PTFE, ka dibna aan si wadajir ah u eegno.

First of dhan, waxaan u baahanahay inaan ogaano waxa looxa fiber galaas epoxy iyo guddiga PTFE yihiin.

Taarikada PTFE waxay u qaybsantaa laba nooc: taarikada la qaabeeyey iyo taarikada rogan. Taarikada la shubay waxay ka samaysan yihiin resin polytetrafluoroethylene iyadoo lagu qaabeynayo heerkulka qolka, ka dibna la miiray oo la qaboojiyey. Looxa-rogiddu wuxuu ka samaysan yahay xabagta PTFE adoo riixaya, diiraya, oo diiraya. Waxaa jira laba nooc oo taarikada PTFE ah: taarikada la shubay iyo taarikada rogan. Taarikada la shubay waxay ka samaysan yihiin resin polytetrafluoroethylene iyadoo lagu qaabeynayo heerkulka qolka, ka dibna la miiray oo la qaboojiyey. Looxa-rogiddu wuxuu ka samaysan yahay xabagta PTFE adoo riixaya, diiraya, oo diiraya. Iska caabin heerkul sarreeya ilaa 250 ℃, iska caabin heerkul hooseeya -196 ℃, iska caabin daxalka, iska caabinta cimilada, saliidayn sare, aan-ku-dhejin iyo astaamo kale. Marka laga reebo biraha alkali ee dhalaalay, saxanka PTFE si dhib leh uma daxaleeyo kiimikaad kasta. Tusaale ahaan, sulfuric acid, nitric acid, hydrochloric acid, ama xataa lagu kariyey aqua regia, miisaankeeda iyo waxqabadkeedu isma beddelaan, waxayna ku dhowdahay inaan la milmi karin dhammaan dareerayaasha.

Looxa fiber galaas Epoxy waxa kale oo loo yaqaan guddiga fiber galaas epoxy, epoxy phenolic laminated guddiga maro galaas, xabagta epoxy loola jeedaa xarunta polymer organic ka kooban laba ama in ka badan kooxaha epoxy in molecule ah. Tirada molecular ee qaraabada ah maaha mid sareysa. Qaab dhismeedka molecular ee resin epoxy waxaa lagu gartaa kooxda epoxy-ga ee firfircoon ee silsiladda molecular. Kooxda epoxy-ga waxay ku yaalliin dhamaadka, dhexda ama qaabdhismeedka meertada ee silsiladda kelli. Sababtoo ah qaab-dhismeedka kelli wuxuu ka kooban yahay kooxaha epoxy-ga firfircoon, waxay mari karaan falcelin isku-dhafan oo leh noocyo kala duwan oo wakiilada daaweynta si ay u sameeyaan polymers aan la milmi karin oo aan la dafiri karin oo leh qaab-dhismeedka shabakad saddex-gees ah.

Haddaba waa maxay farqiga u dhexeeya guddiga fiber galaas epoxy iyo guddiga PTFE?

Boodhka PTFE waxa uu ka samaysan yahay resin polytetrafluoroethylene iyada oo loo marayo hannaan gaar ah sida qaabaynta, cadaadiska haydarooliga, leexinta, iwm. Waxqabadkeedu waxa uu u adkeysan karaa heerkul sare oo ah 260 digrii. Looxa fiber galaas ee epoxy waxa uu ka samaysan yahay fiber galaas ah oo lagu shubay xabagta xabagta epoxy iyo wakiilka daaweynta. , Cadaadiska heerkulka waa qiyaastii 100 darajo, guddiga PTFE wuxuu u adkeysan karaa asiidh kasta iyo alkali, iyo epoxy waxay ka baqayaan aashitada xooggan. Marka loo eego dhinaca kala-soocidda balaastikada, kan hore waxaa iska leh balaastig heerkulbeeg ah, kan dambena waxaa iska leh caagga heerkulbeegga. Looxa fiber galaas epoxy wuxuu leeyahay awood sare heerkulka qolka.