Sei PTFE Yakakwira-Tembiricha Mucheka Ichiita Yakaoma uye Yakaoma Mushure meKushandiswa Kwenguva Yakareba Pakupisa Kwepamusoro?

Jiangsu Aokai New Materials, mugadziri wePTFE high-temperature machira, anotsanangura kuomarara uye embrittlement yePTFE yepamusoro-tembiricha jira mushure menguva yakareba yekushisa kwepamusoro-soro kubva pamaonero matatu: polymer chain relaxation, cross-linking, and degradation . Izvo zvinofanirwa kucherechedzwa kuti iyo yakakosha zvinhu zvePTFE high-temperature jira ndeye polytetrafluoroethylene (PTFE), uye inotevera ongororo inotarisa pane microstructural shanduko yePTFE yakakwirira-temperature jira.

I. Molecular Chain Relaxation (Kuchembera Kwenyama)

Pakupisa kwepamusoro, kufamba kwemaketani emaketani munzvimbo dzeamorphous dzePTFE high-temperature jira rinowedzera, uye zvishoma nezvishoma rinoshandura kuva crystalline state yakarongeka, zvichiita kuti iwedzere kupenya. Iyi chain relaxation process inoderedza kufamba kwema molecular segment muPTFE high-temperature cloth, iyo macroscopically inoratidzira sechinhu chinoshanduka kubva pakushanduka kusvika kune yakaoma uye brittle.

II. Cross-Linking Reaction

Kana PTFE yakakwirira-tembiricha jira akafumurwa tembiricha kwenguva refu (kunyanya pedyo kana kupfuura ayo okumusoro sevhisi muganhu), pamberi trace okisijeni kana mwaranzi, PTFE mamorekuru anorasikirwa fluorine maatomu kuti vaumbe vakasununguka radicals, izvo zvino kukonzera intermolecular cross-linking. Iyo muchinjika-yakabatana network inorambidza zvakananga kutsvedza kwehama cheni dzemamorekuru muPTFE yakakwirira-yekushisa jira, zvichiita kuti irasikirwe nekushanduka. Ichi ndicho chimwe chezvikonzero zvakakosha zvemakemikari zvikonzero zvekuomesera uye embrittlement yePTFE high-temperature jira.

III. Degradation Reaction

Pakupisa kwepamusoro kana muhupo hweokisijeni, maketani makuru ePTFE jira rinopisa rinoputika uye rinosvibisa, richibudisa zvimedu zve-low-molecular-weight fragments uye kubudisa magasi efluoride. Kunyange zvazvo zvinhu zvingapfava pakutanga, kuderera kunoramba kuchiita kunokonzera kudonha kwakapinza kwehuremu hwema molecular uye kukuvadza kune yekutanga crystalline chimiro. Pakupedzisira, pamusoro PTFE yepamusoro-tembiricha jira hupfu, makatsemuka, uye anoratidza isingachinjiki embrittlement.

Summary : Kana PTFE high-temperature jira inopisa kwenguva yakareba, kusununguka kweketani (crystallization) uye kuyambuka-kubatanidza pamwe chete kunokonzera kuoma uye kurasikirwa kwekuoma; pasi pemamiriro ezvinhu akaoma, kuderera kunowedzera kuparadza kutendeseka kwechimiro. Iko kusanganiswa kwezvinhu zvitatu izvi pakupedzisira kunoita kuti PTFE yakakwirira-tembiricha jira rakaoma uye brittle.

Ruzivo rwuri pamusoro rwunopihwa neJiangsu Aokai New Materials Technology Co., Ltd.

Kana iwe uchida kudzidza zvakawanda nezve yakadzama paramita, mamiriro ekushandisa uye yakagadziridzwa mhinduro kune yedu yakazara chigadzirwa renji, kusanganisira PTFE yakakwirira-tembiricha jira, PTFE yakakwirira-temperature tepi, PTFE yakakwirira-temperature mesh bhandi, seamless mabhandi emichina yekubatanidza, single-sided PTFE jira, high-temperature-temperature resistant ndapota taura nesu kuburikidza nematanho anotevera:

·  Service Hotline: VaGuo 18944819998

·  Mr. Liu 13705266308

Isu tinogara tichitsigira huzivi hwesevhisi yehunyanzvi uye kutendeseka, uye takazvipira kukupa iwe-yekumira mhinduro uye inoteerera sevhisi!