Phofo ea Sekhomaretsi sa Urea Formaldehyde, e Loketse ho Romelloa ~

Tlhaloso ea Sehlahisoa
Resin ea Urea-formaldehyde (UF), e tsejoang hape e le resin ea urea-formaldehyde, ke polycondensation ea urea le formaldehyde tlas'a ts'ebetso ea catalyst (alkaline kapa acidic catalyst) ho theha resin ea pele ea urea-formaldehyde, ebe e etsa karolo ea ho qetela e sa qhibiliheng le e sa keneng ka har'a ts'ebetso ea moemeli oa ho folisa kapa sehlomathiso. Resin ea Thermosetting. Resin ea urea-formaldehyde e hloekisitsoeng e bobebe ka 'mala ho feta resin ea phenolic, e bonaletsang, e hanela li-acid tse fokolang le alkali e fokolang, e na le thepa e ntle ea ho thibela ho ruruha, e hanyetsa ho tsofala hantle, 'me e theko e tlase. Ke mofuta o sebelisoang haholo har'a likhomaretsi, haholo-holo tlhahisong ea liboto tse fapaneng tsa maiketsetso indastering ea ts'ebetso ea patsi, resin ea urea-formaldehyde le lihlahisoa tsa eona tse fetotsoeng li etsa hoo e ka bang 90% ea ts'ebeliso eohle ea sekhomaretsi. Leha ho le joalo, resin ea urea-formaldehyde e bonolo ho bola ha e pepesetsoa li-acid tse matla le alkali. E na le khanyetso e mpe ea boemo ba leholimo, viscosity e mpe ea pele, ho fokotseha ho hoholo, ho tetebela, khanyetso ea metsi, le botsofali bo bonolo. Liboto tsa maiketsetso tse hlahisoang ka resin ea urea-formaldehyde li lokolla formaldehyde nakong ea ts'ebetso ea tlhahiso le ts'ebeliso.

Kopo
E ka sebelisoa lihlahisoa tse sa hlokeng ho hanyetsa metsi haholo le thepa ea dielectric, joalo ka li-power strips, li-switch, li-handle tsa mochini, li-casing tsa lisebelisoa, li-knob, lintho tse hlokahalang letsatsi le letsatsi, mekhabiso, lithaele tsa mahjong, likoahelo tsa ntloana, 'me e ka boela ea sebelisoa tlhahisong ea lisebelisoa tse ling tsa tafole.

Resin ea Urea-formaldehyde ke mofuta oa sekhomaretsi o sebelisoang haholo. Haholo-holo tlhahisong ea liboto tse fapaneng tsa maiketsetso indastering ea ho sebetsana le lehong, resin ea urea-formaldehyde le lihlahisoa tsa eona tse fetotsoeng li etsa hoo e ka bang 90% ea tšebeliso eohle ea sekhomaretsi.