Ke Hobane'ng ha Lesela la PTFE la Mocheso o Phahameng le Fetoha ka thata 'me le brittle ka mor'a hore le sebelisoe nako e telele ka mocheso o phahameng?

Jiangsu Aokai New Materials, moetsi oa mohloli oa PTFE lesela la mocheso o phahameng oa mocheso, o hlalosa ho thatafala le ho kenngoa ha lesela la mocheso o phahameng oa PTFE ka mor'a tšebeletso ea nako e telele ea mocheso ho tloha likarolong tse tharo: ho phomola ha polymer chain, cross-linking, le ho senyeha . Hoa lokela ho hlokomeloa hore lisebelisoa tsa mantlha tsa PTFE lesela la mocheso o phahameng oa mocheso ke polytetrafluoroethylene (PTFE), 'me tlhahlobo e latelang e lebisa tlhokomelo liphetohong tsa microstructural tsa PTFE lesela le phahameng la mocheso.

I. Molecular Chain Relaxation (Botsofali ba 'Mele)

Nakong ea mocheso o phahameng, ho tsamaea ha liketane tsa limolek'hule libakeng tsa amorphous tsa PTFE lesela la mocheso o phahameng oa mocheso oa eketseha, 'me butle-butle li fetoha boemo ba kristale bo laetsoeng haholoanyane, bo fellang ka kristale e phahameng. Ts'ebetso ena ea ho phomola ketane e fokotsa ho tsamaea ha likarolo tsa limolek'hule ka lesela la mocheso o phahameng oa PTFE, e leng macroscopically e bonts'ang e le thepa e fetohang ho tloha ho fetoha ho ea ho e thata le e brittle.

II. Cross-Linking Reaction

Ha PTFE phahameng-thempereichara lesela pepesehela mocheso nako e telele (haholo-holo haufi kapa ho feta moeli oa eona o ka holimo tšebeletso), ka pel'a trace oksijene kapa mahlaseli a kotsi, PTFE limolek'hule lahleheloa ke liathomo fluorine ho theha radicals mahala, e leng ka nako eo trigger intermolecular cross-linking. Marang-rang a marang-rang a thibela ka ho toba ho thella ha liketane tsa limolek'hule ka lesela la mocheso o phahameng oa PTFE, e leng se etsang hore e lahleheloe ke ho feto-fetoha ha maemo. Ena ke e 'ngoe ea mabaka a bohlokoa a lik'hemik'hale bakeng sa ho thatafala le ho emisoa ha lesela la PTFE le mocheso o phahameng oa mocheso.

III. Boitšoaro ba ho senyeha

Lithempereichara tse phahameng kapa boteng ba oksijene, liketane tse ka sehloohong tsa PTFE lesela la mocheso o phahameng oa mocheso li senya le ho senya, ho hlahisa likaroloana tse tlaase tsa limolek'hule le ho ntša likhase tsa fluoride. Le hoja thepa e ka 'na ea nolofatsa qalong, ho senyeha ho tsoelang pele ho lebisa ho theoha ho matla ha boima ba limolek'hule le ho senya mohaho oa pele oa kristale. Qetellong, holim'a PTFE phahameng-thempereichara lesela phofo, mapetsong a, 'me e bontša ke keng ea qojoa embrittlement.

Kakaretso : Ha lesela la mocheso o phahameng oa PTFE le futhumala ka nako e telele, ho phomola ha ketane (crystallization) le ho kopanya ho kopanya hammoho ho baka ho thatafala le ho lahleheloa ke boima; tlas'a maemo a thata, ho senyeha ho senya le ho feta ho senya botšepehi ba sebopeho. Motsoako oa lintlha tsena tse tharo qetellong o etsa hore lesela la mocheso o phahameng oa PTFE le be thata ebile le brittle.

Lintlha tse kaholimo li fanoe ke Jiangsu Aokai New Materials Technology Co., Ltd.

Haeba u lakatsa ho ithuta haholoanyane ka lintlha tse qaqileng, maemo a ts'ebeliso le litharollo tse ikhethileng bakeng sa lihlahisoa tsa rona tse felletseng, ho kenyeletsoa lesela la PTFE, tepi ea mocheso o phahameng oa PTFE, lebanta la PTFE, mabanta a seam bakeng sa mechini e tlamang, lesela le nang le lehlakore le le leng la PTFE, lesela le nang le lesela le le leng le le leng la PTFE, lesela le sa keneleng mocheso o phahameng oa mocheso le mocheso o phahameng oa mocheso o phahameng oa mocheso. ka kopo ikopanye le rona ka likanale tse latelang:

·  Mohala oa Ts'ebeletso: Monghali Guo 18944819998

·  Monghali Liu 13705266308

Re lula re ts'ehetsa filosofi ea ts'ebeletso ea botsebi le bots'epehi, 'me re ikemiselitse ho u fa litharollo tsa sebaka se le seng le ts'ebeletso e hlokolosi!