Letlalo la PU ke eng?Le nalane ea nts'etsopele

PU ke khutsufatso ea Senyesemane poly urethane, lik'hemik'hale Chinese lebitso "polyurethane". Letlalo la PU ke letlalo la likarolo tsa polyurethane. E sebelisoa haholo ho thōtō, liaparo, lieta, likoloi le mokhabiso oa thepa ea ka tlung.

Letlalo la Pu ke mofuta oa letlalo la maiketsetso, sebopeho sa lona se kenyelletsa lintlha tse latelang:
1. Substrate: Ka kakaretso sebelisa lesela la fiber, filimi ea fiber le lisebelisoa tse ling e le thepa ea motheo ho ntlafatsa matla le ho tšoarella ha letlalo la Pu.
2. Emulsion: Khetho ea emulsion ea maiketsetso ea resin kapa emulsion ea tlhaho e le thepa ea ho roala e ka ntlafatsa sebopeho le bonolo ba letlalo la Pu.
3. Li-additives: ho kenyelletsa li-plasticizers, metsoako, solvents, ultraviolet absorbers, joalo-joalo, li-additives tsena li ka ntlafatsa matla, ho tšoarella, ho hanyetsa metsi, ho hanyetsa tšilafalo le ho hanyetsa UV ea letlalo la Pu.
4. Mecha ea litaba ea Astringent: Mecha ea li-astringent ka kakaretso ke acidifier, e sebelisetsoang ho laola pH boleng ba letlalo la Pu, e le ho nolofatsa motsoako oa ho roala le substrate, e le hore letlalo la Pu le be le ponahalo le bophelo bo molemo.
Lintlha tse ka holimo ke likarolo tse ka sehloohong tsa letlalo la Pu, ha li bapisoa le letlalo la tlhaho, letlalo la Pu le ka ba bobebe haholoanyane, le sa kenelle metsi 'me le batla le le theko e tlaase, empa sebopeho, ho phunyeletsa le likarolo tse ling li tlaase ho feta letlalo la tlhaho.

Chaena, batho ba tloaetse ho sebelisa PU resin e le lisebelisoa tse tala ho hlahisa letlalo la maiketsetso le bitsoang PU artificial leather (leo ho thoeng ke PU letlalo); Letlalo la maiketsetso le hlahisoang ka resin ea PU le lesela le sa lohiloeng joalo ka thepa e tala le bitsoa PU synthetic letlalo (leo ho thoeng ke letlalo la maiketsetso). Ho tloaelehile ho bua ka mefuta e meraro e ka holimo ea letlalo e le letlalo la maiketsetso. U e bitsa joang? E hloka ho kopanngoa le ho ts'oaroa hore e fane ka lebitso le nepahetseng haholoanyane.
Letlalo la maiketsetso le letlalo la maiketsetso ke karolo ea bohlokoa ea indasteri ea polasetiki 'me e sebelisoa haholo liindastering tse sa tšoaneng tsa moruo oa naha. Letlalo la maiketsetso, tlhahiso ea letlalo la maiketsetso lefatšeng le na le lilemo tse fetang 60 tsa nalane ea nts'etsopele, China e qalile ho nts'etsapele le ho hlahisa letlalo la maiketsetso ho tloha ka 1958, ke nts'etsopele ea pele indastering ea indasteri ea polasetiki ea China. Lilemong tsa morao tjena, ntshetsopele ya indasteri ea letlalo ea maiketsetso ea China le indasteri ea letlalo ea maiketsetso ha se feela kholo ea lihlahisoa tsa lihlahisoa tsa lihlahisoa tsa lihlahisoa tsa lihlahisoa, lihlahisoa tsa lihlahisoa tsa lihlahisoa selemo le selemo, mefuta e sa tšoaneng le mebala e eketseha selemo le selemo, empa hape le tsoelo-pele ea indasteri e na le. mokhatlo oa eona oa indasteri, ho na le momahano o moholo, o ka kenyang likhoebo tsa China tsa letlalo la maiketsetso le tsa maiketsetso tsa letlalo, ho kenyelletsa le liindasteri tse amanang le tsona tse hlophisitsoeng hammoho. E entsoe indasteri e nang le matla a mangata.
Ho latela letlalo la maiketsetso la PVC, letlalo la maiketsetso la PU kamora lilemo tse fetang 30 tsa lipatlisiso le nts'etsopele tse inehetseng ke litsebi tsa mahlale le tsa mahlale, joalo ka sebaka se loketseng sa letlalo la tlhaho, le fihletse tsoelo-pele ea theknoloji.
PU e koahetsoeng ka holim'a lesela e ile ea qala ho hlaha 'marakeng ka bo-1950,' me ka 1964, k'hamphani ea United States ea DuPont e ile ea hlahisa letlalo la maiketsetso la PU bakeng sa bokaholimo. Kamora hore k'hamphani ea Japane e thehe sete ea mela ea tlhahiso e nang le tlhahiso ea selemo ea lisekoere-mithara tse 600,000, kamora lilemo tse fetang 20 tsa lipatlisiso le nts'etsopele e tsoelang pele, letlalo la maiketsetso la PU le ntse le hola ka potlako boleng ba sehlahisoa, mefuta e fapaneng kapa tlhahiso. Ts'ebetso ea eona e ntse e atamela haholoanyane ho letlalo la tlhaho, 'me lisebelisoa tse ling li bile li feta letlalo la tlhaho, li fihla tekanyong ea' nete le ea bohata ka letlalo la tlhaho, le nkang boemo ba bohlokoa haholo bophelong ba letsatsi le letsatsi ba motho.
Kajeno, Japane ke mohlahisi e moholo ka ho fetisisa oa letlalo la maiketsetso, 'me lihlahisoa tsa lik'hamphani tse' maloa tse kang Coroli, Teijin, Toray, le Bell Textile ha e le hantle li emela boemo ba tsoelo-pele ea machaba ka bo-1990. Tlhahiso ea eona ea masela le masela a sa lohiloeng e ntse e tsoela pele ho lebisa tlhokomelo e ntle haholo, e teteaneng haholo le e se nang loho e phahameng. Tlhahiso ea eona ea PU e lebisang ntlheng ea ho hasana ha PU, emulsion ea metsi ea PU, sebaka sa kopo ea sehlahisoa se ntse se tsoela pele ho hola, ho tloha qalong ea lieta, mekotla ho ea ho liaparo, bolo, mokhabiso le likarolo tse ling tse ikhethang tsa kopo, ho pholletsa le likarolo tsohle tsa bophelo ba People's Daily.

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Letlalo la maiketsetso

Letlalo la maiketsetso ke moqapi oa pele oa lesela la letlalo, le entsoe ka PVC hammoho le plasticizer le lisebelisoa tse ling tse phuthoang ka lesela, molemo o theko e tlaase, 'mala o ruileng, mefuta e sa tšoaneng ea mekhoa, bothata bo bonolo ho thatafala, bo brittle. Letlalo la maiketsetso la PU le sebelisetsoa ho khutlisa letlalo la maiketsetso la PVC, theko ea lona e phahame ho feta letlalo la maiketsetso la PVC. Ho tloha mohahong oa lik'hemik'hale, e haufi le lesela la letlalo, ha e sebelise li-plasticizers ho finyella thepa e bonolo, kahoo e ke ke ea e-ba thata, e brittle, 'me e na le melemo ea' mala o ruileng, mefuta e sa tšoaneng ea mekhoa, 'me theko ke theko e tlaase ho feta lesela la letlalo, kahoo e amoheloa ke bareki.
Ho na le mofuta o mong oa letlalo la PU, hangata lehlakore le fapaneng ke lera la bobeli la letlalo, le koahetsoeng ka lesela la PU resin holim'a metsi, kahoo le boetse le bitsoa letlalo la filimi. Theko ea eona e theko e tlase mme sekhahla sa tšebeliso se holimo. Ka phetoho ea ts'ebetso e boetse e etsoa ka lihlopha tse sa tšoaneng tsa mefuta e sa tšoaneng, tse kang tse tsoang linaheng tse ling tse peli tsa letlalo, ka lebaka la ts'ebetso e ikhethang, boleng bo tsitsitseng, mefuta e sa tšoaneng le litšoaneleho tse ling, bakeng sa letlalo la boemo bo phahameng, theko le kereiti ha li eo. ka tlase ho lera la pele la letlalo. PU ea letlalo le mekotla ea sebele ea letlalo e na le litšobotsi tsa eona, mekotla ea letlalo ea PU e shebahala e le ntle, e bonolo ho e hlokomela, theko e tlaase, empa e sa senyehe, e bonolo ho senya; Letlalo la sebele le theko e boima ebile le thata ho le hlokomela, empa le tšoarella nako e telele.
Lesela la letlalo le letlalo la maiketsetso la PVC, letlalo la maiketsetso la pu le nang le litsela tse peli tsa ho khetholla: pele, tekanyo ea ho ba bonolo ha letlalo, letlalo le bonolo haholo, pu e thata, kahoo boholo ba pu bo sebelisoa lieta tsa letlalo; Ea bobeli ke ho sebelisa mokhoa oa ho chesa le ho qhibiliha ho khetholla, mokhoa ke ho nka lesela le lenyenyane mollong, lesela la letlalo le ke ke la qhibiliha, 'me letlalo la maiketsetso la PVC, letlalo la maiketsetso la PU le tla qhibiliha.
Phapang pakeng tsa letlalo la maiketsetso la PVC le letlalo la maiketsetso la PU le ka khetholloa ka mokhoa oa ho koloba ka peterole, mokhoa ke ho sebelisa lesela le lenyenyane, le kenye ka peterole ka halofo ea hora, ebe le le ntša, haeba ho le joalo. Letlalo la maiketsetso la PVC, le tla thatafala hape le robehe, haeba e le letlalo la maiketsetso la PU, le ke ke la thatafala le ho robeha.

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Letlalo la tlhaho ka lebaka la litšobotsi tsa lona tse babatsehang tsa tlhaho li sebelisoa haholo tlhahiso ea litlhoko tsa letsatsi le letsatsi le lihlahisoa tsa indasteri, empa ka kholo ea baahi ba lefatše, tlhokahalo ea batho ea letlalo e imenne habeli, palo e lekanyelitsoeng ea letlalo la tlhaho e 'nile ea sitoa ho finyella litlhoko tsa batho ka nako e telele. . E le ho rarolla ho se lumellane hona, bo-rasaense ba ile ba qala ho etsa lipatlisiso le ho hlahisa letlalo la maiketsetso le letlalo la maiketsetso lilemong tse mashome tse fetileng ho etsa hore ho be le khaello ea letlalo la tlhaho. Ts'ebetso ea nalane ea lilemo tse fetang 50 tsa lipatlisiso ke ts'ebetso ea letlalo la maiketsetso le letlalo la maiketsetso le phephetsang letlalo la tlhaho.
Bo-rasaense ba qalile ka ho ithuta le ho hlahloba sebopeho sa lik'hemik'hale le sebopeho sa mokhatlo oa letlalo la tlhaho, ho qala ka nitrocellulose linoleum, le ho kenya letlalo la maiketsetso la PVC, e leng moloko oa pele oa letlalo la maiketsetso. Motheong ona, bo-rasaense ba entse lintlafatso le liphuputso tse ngata, pele ho tsohle, ntlafatso ea substrate, ebe joale ho fetoloa le ho ntlafatsa resin ea ho roala. Lilemong tsa bo-1970, lesela le sa lohiloeng la fiber ea maiketsetso le ile la hlaha le hloka letlooeng, le kopanya mesh le mekhoa e meng, e le hore thepa ea motheo e be le karolo e kang ea lotus, e se nang letho, ho finyella sebopeho sa porous, le ho finyella litlhoko tsa sebopeho sa marang-rang. letlalo la tlhaho; Ka nako eo, bokaholimo ba letlalo la maiketsetso bo khonne ho fihlela lera la polyurethane e nyane, e lekanang le bokaholimo ba lijo-thollo tsa letlalo la tlhaho, e le hore ponahalo le sebopeho sa kahare sa letlalo la maiketsetso la PU le haufi butle-butle le tlhaho. letlalo, lisebelisoa tse ling tsa 'mele li haufi le index ea letlalo la tlhaho,' me 'mala o khanya ho feta letlalo la tlhaho; Ho hanyetsa ho phutha mocheso oa kamore ho fihla makhetlo a fetang limilione tse 1, 'me ho hanyetsa ho phutha ka mocheso o tlase ho ka boela ha fihla boemong ba letlalo la tlhaho.

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Ho hlaha ha microfiber PU synthetic letlalo ke moloko oa boraro oa letlalo la maiketsetso. Lesela le sa lohiloeng la marang-rang a eona a mararo-dimensional le etsa hore ho be le maemo a hore letlalo la maiketsetso le kopane le letlalo la tlhaho ho latela substrate. Sehlahisoa sena, se kopantsoeng le PU slurry impregnation e sa tsoa ntlafatsoa e nang le sebopeho sa sele e bulehileng le theknoloji ea ts'ebetso ea bokaholimo ba bokaholimo, e fana ka sebaka se seholo sa bokaholimo le ho monya metsi a matla a microfiber, e leng se etsang hore letlalo la maiketsetso la PU le be le monyetla oa tlhaho oa mongobo. Litšobotsi tsa letlalo la tlhaho la sephutheloana sa li-ultra-fine collagen fiber, e le hore ho sa tsotelehe ho tsoa ho microstructure e ka hare, Kapa ponahalo ea sebopeho le litšobotsi tsa 'mele le boiketlo ba batho ba ho apara, bo ka bapisoang le letlalo la tlhaho la maemo a holimo. Ntle le moo, letlalo la maiketsetso la microfiber le feta letlalo la tlhaho ho hanyetsa lik'hemik'hale, ho ts'oana ha boleng, tlhahiso e kholo le ho ikamahanya le maemo, ho se kenelle ha metsi, ho thibela hlobo le lintlha tse ling.

Ho itloaetsa ho ipakile hore thepa e babatsehang ea letlalo la maiketsetso e ke ke ea nkeloa sebaka ke letlalo la tlhaho, ho tloha tlhahlobo ea maraka ea malapeng le ea linaheng tse ling, letlalo la maiketsetso le boetse le nkile sebaka sa palo e kholo ea letlalo la tlhaho le mehloli e sa lekaneng. Tšebeliso ea letlalo la maiketsetso le letlalo la maiketsetso ho etsa mekotla, liaparo, lieta, likoloi le mokhabiso oa thepa ea ka tlung, e 'nile ea amoheloa ka ho eketsehileng ke' maraka, mefuta e mengata ea likopo, palo ea mefuta e mengata e mengata, ke letlalo la tlhaho la tlhaho le ke keng la khona ho etsa joalo. kopana.

 

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Nako ea poso: Mar-29-2024