Cacisa umahluko phakathi kwe epoxy glass fiber board kunye ne PTFE board ngokwenkcukacha

Namhlanje, ndingathanda ukwabelana nawe ngomahluko phakathi kwebhodi yefayibha yeglasi ye-epoxy kunye nebhodi ye-PTFE, ngoko ke masiyijonge kunye.

Okokuqala, kufuneka sazi ukuba yintoni ibhodi yefiber yeglasi ye-epoxy kunye nebhodi ye-PTFE.

Iipleyiti ze-PTFE zahlulwe zaba zintlobo ezimbini: iipleyiti ezibunjiweyo kunye neepleyiti ezijikiweyo. Iipleyiti ezibunjiweyo zenziwe nge-polytetrafluoroethylene resin ngokubumba kwiqondo lokushisa, emva koko i-sintered kwaye ipholile. Ibhodi yokujika yenziwe nge-PTFE resin ngokucinezela, ukucwina, kunye nokuxobula. Kukho iindidi ezimbini zeepleyiti ze-PTFE: iipleyiti ezibunjiweyo kunye neepleyiti ezijikiweyo. Iipleyiti ezibunjiweyo zenziwe nge-polytetrafluoroethylene resin ngokubumba kwiqondo lokushisa, kwaye emva koko i-sintered kwaye ipholile. Ibhodi yokujika yenziwe nge-PTFE resin ngokucinezela, ukucwina, kunye nokuxobula. Ukumelana nobushushu obuphezulu ukuya kuthi ga kwi-250 ℃, ukuxhathisa ubushushu obuphantsi -196 ℃, ukumelana nokugqwala, ukumelana nemozulu, ukuthambisa okuphezulu, ukunganamatheli kunye nezinye iimpawu. Ngaphandle kwesinyithi esinyibilikisiweyo sealkali, ipleyiti ye-PTFE ayinakugqwaliswa naziphi na iikhemikhali. Ngokomzekelo, kwi-asidi ye-sulfuric egxininisiweyo, i-nitric acid, i-hydrochloric acid, okanye ibiliswe kwi-aqua regia, ubunzima bayo kunye nokusebenza kwayo akutshintshi, kwaye iphantse ingabikho kuzo zonke izinyibilikisi.

Epoxy glass ifayibha ibhodi ukwabizwa epoxy glass ifayibha ibhodi, epoxy phenolic laminated glass ilaphu iplanga ibhodi, epoxy resin ibhekisa ikhompawundi organic polymer equlathe amaqela epoxy amabini okanye ngaphezulu kwi molekyuli. Ubunzima bemolekyuli abukho phezulu. Isakhiwo se-molecular ye-epoxy resin sibonakaliswe liqela elisebenzayo le-epoxy kwi-chain chain. Iqela le-epoxy linokufumaneka ekupheleni, phakathi okanye kwisakhiwo se-cyclic ye-chain chain. Ngenxa yokuba i-molecular structure iqulethe amaqela e-epoxy asebenzayo, banokungena kwi-cross-linking reactions kunye neentlobo ezahlukeneyo zee-agents zokunyanga ukwenza iipolymers ezinganyibilikiyo kunye ne-infusible kunye nesakhiwo senethiwekhi yeendlela ezintathu.

Ke ngoko yintoni umahluko phakathi kwebhodi yefayibha yeglasi ye-epoxy kunye nebhodi ye-PTFE?

Ibhodi ye-PTFE yenziwe nge-polytetrafluoroethylene resin ngokusebenzisa inkqubo ekhethekileyo efana nokubumba, uxinzelelo lwe-hydraulic, ukuguquka, njl. Ukusebenza kwayo kunokumelana namaqondo aphezulu angama-260 degrees. Ibhodi yefiber yeglasi ye-epoxy yenziwe ngefiber yeglasi efakwe kwiglue ye-epoxy resin kunye ne-ejenti yokunyanga. , Ukuxhatshazwa kweqondo lokushisa malunga ne-100 degrees, ibhodi ye-PTFE inokumelana nayiphi na i-asidi kunye ne-alkali, kwaye i-epoxy iyoyika i-asidi eqinile. Ngokombono wokuhlelwa kweplastiki, yangaphambili yeyeplastiki ye-thermoplastic, kwaye le yokugqibela yeyeplastiki ye-thermosetting. Ibhodi yefiber yeglasi ye-epoxy inamandla aphezulu kwiqondo lokushisa.