EVA ke polymer ea bone e kholo ka ho fetisisa ea ethylene kamora HDPE, LDPE le LLDPE.Ha ho bapisoa le thepa ea setso, theko ea eona e tlase haholo.Batho ba bangata ba nahana hore thepa ea foam ea EVA ke motsoako o phethahetseng oa khetla e thata le khetla e bonolo, e bolokang melemo ea foam e bonolo le e thata ha e ntse e lahla mefokolo.Hape, ho feto-fetoha ha tlhaho ha moralo oa thepa le bokhoni ba ho etsa thepa le hona ke ntlha e kholo ho tse ling tsa lik'hamphani tse etelletseng pele lefats'eng le lihlahisoa tse fetohelang ho foam ea EVA ha ho hlokahala thepa ea boleng bo holimo, e theko e tlase.
Ho feta ho tenyetseha, thepa ea foam ea EVA e tsotella bophelo ba rona ba letsatsi le letsatsi le mesebetsi ea khoebo, 'me e hlahisitse mohau ho basebelisi ba ho qetela.Lieta, litlhare, liphanele tsa photovoltaic, lipapali le lihlahisoa tsa boikhathollo, lintho tsa ho bapala, mokatong / limmete tsa yoga, liphutheloana, lisebelisoa tsa bongaka, lisebelisoa tsa ts'ireletso, wat
lihlahisoa tsa lipapali li tlhokahalong e matla ea lihlahisoa tsa polasetiki tse tšoarellang nako e telele, 'me karolo ea 'maraka oa thepa ea foam ea EVA e ntse e tsoela pele ho tlisa kholo e ncha ea.
丨EVA thepa ea 'mele le ea mochini
Thepa ea li-copolymers tsa EVA e khethoa haholo ke litaba tsa vinyl acetate le tekanyo ea metsi.Keketseho ea litaba tsa VA e eketsa letsoalo, pepeneneng le ho feto-fetoha ha thepa ha e ntse e fokotsa ntlha ea ho qhibiliha le ho thatafala.Ethylene-vinyl acetate copolymer (EVA) ke thepa e otlolohileng haholo e ka chekoang ho etsa foam e kang rabara, empa ka matla a maholo.E tenyetseha ka makhetlo a mararo ho feta polyethylene e tlase (LDPE), e na le bolelele ba 750%, 'me e na le mocheso o phahameng oa ho qhibiliha oa 96°C.
Ho ipapisitsoe le lisebelisoa tsa ts'ebetso ea tlhahiso, likhato tse fapaneng tsa boima ba EVA li ka finyelloa.Ho bohlokoa ho boloka boima bo leka-lekaneng hobane EVA ha e boele e bopehile ka mor'a ho hatella ho tsoelang pele.Ha e bapisoa le EVA e thata haholoanyane, EVA e bonolo ha e khone ho mamella ho khoptjoa 'me e na le nako e khuts'oane ea bophelo e le mong, empa e phutholohile haholoanyane.
丨 EVA Thermal properties
Sebaka se qhibilihang sa EVA se fokotseha ka keketseho ea litaba tsa VA.Ka hona, mocheso oa tšebeliso ea copolymer o tlase ha o bapisoa le homopolymer e lumellanang (LDPE).Mocheso o phahameng oa ho sebetsa oa workpiece o ka tlaase ho mocheso oa Vicat o nolofatsang.Joalo ka li-polymers tsohle tsa thermoplastic, mocheso o ipapisitse le nako le boemo ba khatello ea mochini eo sesebelisoa sa mosebetsi se kenngoeng ke mocheso.Ha mocheso o ntse o eketseha, mocheso oa conductivity oa fokotseha ho fihlela o fihla sehlabeng se haufi le ntlha ea ho qhibiliha.
Nako ea poso: Sep-23-2022