Litaba

Mokhoa oa ho ntlafatsa ho hasana ha li-flame retardants

Ka tšebeliso e pharaletseng ea lisebelisoa tsa polymer le lihlahisoa tsa bareki ba elektronike bophelong ba letsatsi le letsatsi, liketsahalo tsa mollo li ntse li eketseha, 'me kotsi eo e e tlisang e tšosa le ho feta. Ts'ebetso e thibelang malakabe ea thepa ea polymer e se e le ea bohlokoa le ho feta, ke molemong oa ho fihlela litlhoko tse thibelang malakabe tsa polasetiki le lihlahisoa tsa rabara, ho fokotsa tšilafalo ea lerōle e bakoang ke li-flame retardants, ho bile teng, 'me e bapala karolo ea bohlokoa le ea bohlokoa ho bopeng lihlahisoa tsa ho qetela.

Flame retardant masterbatch e etsoa ho latela mokhoa o utloahalang, ka motsoako oa manyolo oa "flame retardant", "lubricant dispersant" le mojari, ka ho hloekisoa ho hoholo, ho kopanya, ho ts'oana, ebe ho latela granulation ea extrusion. Ho sena, dispersant phetha karolo ea bohlokoa haholo, eketsa karolo e itseng ea dispersant e ka ba molemo haholo ho khothalletsa ho hasana ha lelakabe retardant, e le hore ho ke ke ho le bonolo ho evenly qhalakantsoeng tshebetsong, ho thibela agglomeration ea lelakabe retardant, molemo phello ea qhalakanya, e le hore ho etsa hore lelakabe retardant retardant, ka tsela eo, ho ntlafatsa flametar retardant limolek'hule ka tsela eo ho ntlafatsa flametar retardant. bokhoni ba polasetiki, lihlahisoa tsa rabara, mollo o tla khangoa qalong.

Leha ho le joalo, ha e le hantle, lipolasetiki tse ngata le likarolo tsa rabara tse nang le likarolo tse thibelang lelakabe li sitoa ho etsa thepa ea tsona e thibelang lelakabe ka lebaka la ho qhalakanngoa ho sa tšoaneng ha lelakabe le thibelang mollo ka thepa ea mollo, e leng se fellang ka mollo o moholoanyane le tahlehelo e tebileng.

E le ho khothalletsa ho hasana ha junifomo ea li-flame retardants kapa flame retardant masterbatch ts'ebetsong ea ho bopa sehlahisoa, ho fokotsa ketsahalo ea ho qhalakanngoa ho sa tšoaneng ho bakoang ke phello e thibelang lelakabe ho ke ke ha etsoa ka katleho, joalo-joalo, le ho ntlafatsa boleng ba lihlahisoa tse thibelang lelakabe, SILIKE e hlahisitse motsoako o fetotsoeng oa silicone hyperdispersant SILIMER.

SILIMER ke mofuta oa tri-block copolymerized modified siloxane e entsoeng ka polysiloxanes, lihlopha tsa polar le lihlopha tse telele tsa carbon chain. Likarolo tsa ketane ea polysiloxane li ka phetha karolo e itseng ea ho itšehla thajana pakeng tsa limolek'hule tse thibelang mollo tlas'a ho kuta ka mechine, ho thibela ho kopana ha bobeli ba limolek'hule tse thibelang mollo; likarolo tsa ketane ea lihlopha tsa polar li na le tlamahano e itseng le lelakabe la mollo, li bapala karolo ea ho kopanya; likarolo tse telele tsa ketane ea carbon li na le tumellano e ntle haholo le thepa ea motheo.

Letoto lena la lihlahisoa li loketse li-resin tse tloaelehileng tsa thermoplastic, TPE, TPU le li-elastomer tse ling tsa thermoplastic, 'me li ka ntlafatsa ho lumellana pakeng tsa li-pigment / filler powders / functional powders le resin systems, le ho boloka boemo ba ho hasana ha phofo bo tsitsitse.

Ka nako e ts'oanang, e ka fokotsa viscosity ea ho qhibiliha, ho fokotsa torque ea extruder, khatello ea extrusion, ho ntlafatsa ts'ebetso ea ts'ebetso ea thepa, ka mokhoa o motle oa ts'ebetso ea lubrication, 'me ka nako e ts'oanang e ka ntlafatsa ka katleho maikutlo a holim'a lintho tse bonahalang, ka tekanyo e itseng ea boreleli' me ha e ame thepa ea mochine oa thepa, ke ho khothalletsa ho qhalakanngoa ha lelakabe la ho qetela la flame. sehlahisoa ho fana ka ho bapala ka botlalo ho litharollo tsa boleng bo holimo.

Ntle le moo, letoto lena la lihlahisoa ha le loketse feela bakeng sa masterbatch e khutlisang malakabe, empa hape le bakeng sa masterbatch ea mebala kapa lisebelisoa tse ngata tse hasantsoeng pele.