Chain extender ke mofuta oa thepa e ka holisang ketane ea limolek'hule le ho eketsa
boima ba molek'hule ka ho sebetsana le sehlopha se sebetsang ka har'a ketane ea polima e melang.
Ka tloaelo ho sebelisoa ho ntlafatsa thepa ea mochine le thepa ea ho sebetsa ea
polyurethane, polyester, nylon le lihlahisoa tse ling.
Epoxy chain extender ke ketane extender e nang le glycidyl methacrylate (GMA) .
Li-extensions tse sebelisoang ka tloaelo tsa epoxy chain li kenyelletsa styrene-glycidyl methacrylate, e nang le
botsitso bo botle ba mocheso mme e ka kena karabelo ea lik'hemik'hale e bulang lesale ka PA6, ho fapana le
motsoako o hloekileng oa 'mele.E ka sebelisoa hape ts'ebetsong ea litšila ea PET le likarolo tse ling.The
Ts'ebetso ea li-epoxy chain extenders ho nylon e fetotsoeng ke e latelang:
1. Phello ho boima ba limolek'hule le viscosity ea kahare
Epoxy chain extenders e ka itšoara ka sehlopha sa amino sa ho qetela le sehlopha sa ho qetela sa carboxyl sa
PA6, ebe o ntlafatsa boima ba molek'hule ea PA6.Leha ho le joalo, gelation e ka etsahala nakong ea bokhachane
katoloso ea ketane, kahoo hoa hlokahala ho laola maemo a loketseng, haholo-holo
mocheso le lebelo la screw, ho thibela cross-linking ka reactive extrusion.
The intrinsic viscosity ea PA6 e ile ea eketseha ka potlako ka keketseho ea palo ea ketane
extender.Ha litaba tsa ketane extender eketseha ho karolo e itseng ea boima, the
Viscosity ea kahare ea PA6 e fokotsehile hanyane.Sena ke hobane sehlopha sa terminal sa PA6 se khona
itšoara ka potlako le sehlopha sa epoxy ka har'a ketane extender ka lebaka la polarity le hydrogen
tlamahano.Ha palo ea ketane extender e itekanetse, karolo ea ketane e telele
limolek'hule tsamaisong ea eketseha 'me viscosity e eketseha ho latela;
Leha ho le joalo, joalo kakarabelo e tsoela pele, litaba tsa sehlopha sa ho qetela tsa PA6 lia fokotseha, le ho thulana
probability atpheletso ea ketane ea limolek'hule e fokotsehile haholo ka lebaka la tšusumetso ea
phallo ya mochesole bolelele ba ketane ea molek'hule, ho phaella moo, ketane e ngata haholo
e ka lebisa hotekanyo e nyane ea gel tsamaisong, e lebisang ho fokotseha ha katoloso ea ketane
bokgabanele PA6 intrinsic viscosity.
2. Phello ho thepa ea mechine
Boima ba molek'hule ba PA6 bo ile ba eketseha ka mor'a katoloso ea ketane ka ketane ea epoxy
extender, The toughness ea thepa ka ka katleho ntlafatsoa ka ho fokotseha
crystallinity le boholo ba lijo-thollo. Ho feta moo, ka keketseho ea bolelele ba ketane ea limolek'hule,
ho ts'oaroa pakeng tsa liketane ho eketseha, 'me ketane ea molek'hule e thata ho thella.Ho
ka tsela ena, matla a tšusumetso a ka kenngoa ka ho fetola tlhophiso ea molek'hule
ketane ha e angoa ke lefatshe le kantle.Empa ha karolo e boima ea ketane extender
e feta tekanyo e itseng, thepa eohle ea mechine e fokotsehile./n
3. Phello ho thepa ea rheological
Sekhahla sa ho qhibiliha ha metsi (MFR) se fokotsehile haholo ka keketseho ea epoxy chain extender,
e bonts'ang hore epoxy chain extender le PA6 li na le karabelo e sebetsang ea ketane.
Ka keketseho ea boholo ba ketane extender, torque ea tekano e ile ea eketseha pele
'me ea fokotseha, hobane boima ba molek'hule bo lekanang ba PA6 ka mor'a katoloso ea ketane
e ile ea eketseha, ho ts'oaroa ha ketane ea molek'hule ea eketseha, le viscosity e qhibilihisang hape
ea eketseha, kahoo torque ea tekano ea eketseha.
Ha nako e ntse e feta, pellet ea PA6 e ile ea nolofala, ea kopanngoa 'me ea qhibiliha butle-butle
ho hanyetsa ha rotor ho fokotsehile, 'me torque e boetse e fokotsehile.
Qingdao Sainuo Chemical Co., Ltd.Re moetsi bakeng saboka ba PE, boka ba PP,
OPEwax,EVAwax, PEMA, EBS,Zinc/Calcium Stearate….Lihlahisoa tsa rona li fetile
theREACH, ROHS, PAHS, liteko tsa FDA.
Kholiseha ka boka ba Sainuo, amohela potso ea hau!
Webosaete: https://www.sanowax.com
E-mail:sales@qdsainuo.com
sales1@qdsainuo.com
Aterese: Kamore ea 2702, Block B, Suning Building, Jingkou Road, Setereke sa Licang, Qingdao,
China
Nako ea poso: Apr-15-2021