Sethapo sa lesela ke ntho e entsoeng ka polymer ea tlhaho e ntlafatsang ponahalo ea lesela, e eketsa ho tenyetseha le boima ba lesela, 'me e le fa maikutlo a thata. Ke karolo ea bohlokoa ea lintho tse thusang ho qeta. Lesela le phekotsoeng le ka sebelisoa haholo masela a khabisitsoeng, haholo-holo lesela la lesira, lesela la mokotla le tlhahiso ea lesela le lohiloeng ka ho kobeha. E boetse e sebelisoa tlhahisong ea interlining (fusible interlining le resin interlining).
Linaheng tse tsoetseng pele tsa bophirimela, metsoako ea emulsion polyacrylate ka lebaka la theko ea eona e tlaase, motsoako o bonolo, ts'ebetso e tsitsitseng le melemo e meng ea indasteri ea khatiso ea masela le ho daea e sebelisitsoe haholo. Li-stiffener tse sebelisoang ka tloaelo ke: resin ea melamine, resin ea urea-formaldehyde, polyacrylate, polyvinyl acetate, joala ba polyvinyl le starch, le lihlahisoa tsa tsona tse fetotsoeng.
Melemo le go tlhoka mesola ea stiffeners
lebitso | le menyetla | go tlhoka mesola |
Resin ea melamine | Ka mor'a ho qeta lesela ho satalla, shrinkage, elasticity, ikutloa ba molemo, haholo-holo bakeng sa synthetic faeba stiffness phello e ntle. | Ka mor'a ho qeta, lesela le bonolo ho monya mongobo, ho thatafala le ho satalla ho theoha, mosehla le ho fokotseha ha matla, ho lokolloa ha formaldehyde ea mahala, joalo-joalo Ho qeta botsitso ba polokelo ea moemeli ho futsanehile. |
Resin ea urea-formaldehyde | Ka mor'a ho qeta, lesela le na le ho satalla ho molemo le ho fokotsa litšenyehelo tsa thepa e tala. | Ka mor'a ho qeta, lesela le na le elasticity e fokolang, letsoho le thata, ho fokotseha ho hoholo, ho hanyetsa ho hlatsoa ho fokolang le ho lokolloa ha formaldehyde ea mahala. Botsitso bo bobe ba polokelo ea moemeli oa ho qetela. |
Li-polyacrylates le polyvinyl acetates | E na le litšobotsi tsa ho hanyetsa khanya, ho hanyetsa botsofali le ho se be mosehla. Ho bonolo ho kopanya, botsitso bo botle ba polokelo, ha bo hlahise formaldehyde ea mahala. Phello e thatafatsang e ntle, haholo-holo bakeng sa ho thaepa ha lesela la cellulose. | Palo e ts'oanang ea moemeli oa ho qetela, phello e thata ho masela a maiketsetso a tlase ho melamine resin. Ka mor'a ho qeta, lesela ha le na elasticity le maikutlo a teteaneng. Polyvinyl acetate e brittle ebile e na le khanyetso e matla ea serame. |
Pefuta ea polyvinyl | E na le rheology e ntle 'me e ka etsa filimi e nang le matla a phahameng, e nang le phello e ntle ea ho thatafatsa lesela la cellulose. | Ho thata ho senya tlas'a tikoloho ea tlhaho 'me e ka etsa foam e ngata ka metsing. Moemeli oa ho qetela ka lesela ka mor'a mocheso o bonolo ho nolofatsa le ho tsoa mali, ho hlatsuoa ho futsanehileng. |
Starch e fetotsoeng | Ho bonolo ho fumana thepa e tala, theko e tlaase, e sa senyeheng, e bonolo ho e sebelisa, e ka senyeha, 'me e ka etsa hore lesela le be le phello e ntle ea ho thatafatsa. | Ka mor'a ho qeta, ho satalla ha lesela ho fokotseha ka mongobo, 'me ho bonolo ho senyeha le ho ba hlobo. Ho se khone ho hlatsuoa hantle, matsoho a khopameng, le ho fokola ha matsoho. |
Sebetsa lintlha tsa bohlokoa
Mokhoa oa ho chesa o na le tšusumetso e kholo ho formaldehyde holim'a lesela le ho tiea ha lesela ka mor'a ho qeta. Ka ho eketseha ha nako ea ho chesa le mocheso oa ho chesa, ho satalla hoa eketseha 'me litaba tsa formaldehyde holim'a lesela li fokotseha haholo. Ha ts'ebetso ea ts'ebetso e laoloa ho 200 ° C × 60s, formaldehyde holim'a lesela e ka fihla ka tlase ho 75ppm.
Lebaka ke hore ka ho ntlafatsoa ha mokhoa oa ho omisa, crosslinking ea stiffener e lekane haholoanyane, kahoo ho thatafala ha lesela ka mor'a ho qeta ho eketseha. Ka lehlakoreng le leng, formaldehyde ka lesela la ho qetela e bonolo ho volatilize tlas'a maemo a phahameng a mocheso, e leng se hlahisang formaldehyde e tlaase lesela la ho qetela.
Ho na le karabelo e fetohang ea tekano pakeng tsa moemeli ea thatafatsang le formaldehyde. Ka phetoho ea tikoloho ea kantle (joalo ka: mocheso, mongobo, pH, jj.), formaldehyde e tla aroloa khafetsa. Kamora ho qeta sampole ea pele ea lesela, formaldehyde e ba tlase, ka katoloso ea nako ea polokelo formaldehyde e eketseha butle-butle. Ha nako ea polokelo e fihla matsatsi a 10-12, formaldehyde ea lesela e tsitsisoa ka botlalo.
Haeba e bolokiloe sebakeng se se nang moea, formaldehyde e lokolloa e tla bokellana le ho feta, ho tla ba le maikutlo a hlabang le a bohale. Ho kgothaletswa hore lesela ka mor'a ho qeta ka resin e thata e lokela ho bolokoa sebakeng se nang le moea o motle oa moea.
Maemo a sebetsang a mofuta o mong le o mong oa stiffener
- Lesela la k'hothone ka mor'a ho qeta ho satalla: joala ba polyvinyl> polyacrylate> starch> melamine resin.
- Lesela la polyester ka mor'a ho qeta ho satalla: joala ba polyvinyl> starch> melamine resin> polyacrylate.
- Ho hlatsoa kapele: polyacrylate > polyvinyl alcohol > melamine resin > starch.
- Polyvinyl joala ka masela a k'hothone le polyester ka mor'a ho qeta ho satalla li kholoanyane, empa ho ikutloa ho le thata. Lesela la polyester ha le rekere joalo ka melamine resin, ho hlatsoa ka potlako ke ea bobeli ho feta polyacrylate. Ho thatafala ha lesela ho qeta starch ho molemo, ho bobeli ke joala ba polyvinyl, empa ho potlaka ha ho hlatsoa ho futsanehile haholo.
- Melamine resin e qetang lesela la polyester, phello ea ho satalla e batla e le ntle, 'me maikutlo a teteaneng le elasticity a molemo. Empa ka phello ea ho qeta k'hothone ha e ntle, 'me ka mor'a ho qeta lesela le tla lokolla formaldehyde. Polyacrylate ka k'hothone ka phello e thata ea ho qetela e molemo, ka lesela la polyester ho qeta phello ha e ntle, empa ho hlatsoa ka potlako ho molemo ka ho fetisisa.
Tlhahisoleseding e batsi ka resin e fetotsweng ya melamine formaldehyde ya SINOYQX, ka kopo ikopanye le rona ka imeile: [email protected] , kapa o re bolelle ho: +86-28-8411-1861.
Lits'oants'o tse ling le litemana li hlahisoa hape ho tsoa Marang-rang, 'me litokelo tsa molao ke tsa mongoli oa pele. Haeba ho na le tlolo ea molao, ka kopo ikopanye le rona ho hlakola.