Chain extender luhlobo lwemathiriyeli enokwandisa ikhonkco lemolekyuli kwaye yandise

ubunzima bemolekyuli ngokusabela kunye neqela elisebenzayo kwitsheyini yepolymer yomgca.

Ngokuqhelekileyo isetyenziselwa ukuphucula iimpawu zoomatshini kunye neepropati zokucubungula

i-polyurethane, i-polyester, inayiloni kunye nezinye iimveliso.

I-Epoxy chain extender sisixokelelwano esine-glycidyl methacrylate (GMA) .

Izandiso zekhonkco leepoxy ezisetyenziswa ngokuqhelekileyo ziquka i-styrene-glycidyl methacrylate, enayo

Uzinzo oluhle lwe-thermal kwaye banokungena kwi-ring-opening chemical reaction nge-PA6, kunokuba

ukuxuba okucocekileyo ngokomzimba.Isenokusetyenziswa kwakhona kwi-PET inkunkuma yokurisayikilisha kunye neminye imiba.I

umsebenzi we-epoxy chain extensions kwinayiloni elungisiweyo umi ngolu hlobo lulandelayo:

1. Impembelelo kubunzima bemolekyuli kunye ne-intrinsic viscosity

I-epoxy chain extenders inokusabela kunye neqela lokugqibela le-amino kunye neqela le-carboxyl lokugqibela

PA6, kwaye emva koko uphucule ubunzima bemolekyuli ye-PA6.Nangona kunjalo, i-gelation inokwenzeka ngexesha

impendulo yokwandiswa kwekhonkco, ngoko ke kuyimfuneko ukulawula iimeko ezifanelekileyo, ngakumbi

ubushushu kunye nesantya se-screw, ukuthintela ukudityaniswa komnqamlezo kwi-extrusion esebenzayo.

I-intrinsic viscosity ye-PA6 yanda ngokukhawuleza ngokunyuka kwenani lekhonkco

extender.Xa umxholo we-chain extender wenyuka ukuya kwiqhezu elithile lobunzima, i

I-viscosity yangaphakathi ye-PA6 yehle kancinci.Oku kungenxa yokuba iqela leterminal ye PA6 inakho

sabela ngokukhawuleza kunye neqela le-epoxy kwi-extender ye-chain ngenxa ye-polarity kunye ne-hydrogen

ibhondi.Xa umyinge wechain extender uphakathi, umlinganiselo wekhonkco elide

iimolekyuli kwinkqubo iyanda kwaye i-viscosity iyanda ngokufanelekileyo;

Nangona kunjalo, njengoko iukusabela kuqhubeka, umxholo weqela lokugqibela le PA6 uyancipha, kunye nongquzulwano

amathuba kwiukuphela kwetsheyini yeemolekyuli kuncitshiswe kakhulu ngenxa yempembelelo ye

ukusasazwa kwe-thermalkunye nobude betsheyini yemolekyuli, ukongeza, ikhonkco eligqithise kakhulu

kunokukhokelela ekubeni aixabiso elincinci lejel kwinkqubo, ekhokelela ekunciphiseni ukwandiswa kwekhonkco

ukusebenza kakuhlekunye PA6 intrinsic viscosity.

2. Impembelelo kwiipropati zoomatshini

Ubunzima bemolekyuli be-PA6 bonyuswa emva kokwandiswa kwekhonkco ngekhonkco le-epoxy

extender, Ukuqina kwemathiriyeli kunokuphuculwa ngokufanelekileyo ngokuncipha

icrystallinity kunye nobukhulu bengqolowa.Ukongezelela, ngokunyuka kobude betsheyini yeemolekyuli,

ukuxinana phakathi kwamatyathanga kuyanda, kwaye ikhonkco lemolekyuli kunzima ukutyibilika.Kwi

ngale ndlela, amandla empembelelo anokufunxwa ngokutshintsha uqwalaselo lwemolekyuli

chain xa ichatshazelwa lilizwe langaphandle.Kodwa xa iqhezu ubunzima chain extender

idlula umlinganiselo othile, zonke iimpawu zomatshini zincitshisiwe./n

3. Impembelelo kwiipropati ze-rheological

Izinga lokuncibilika kokunyibilika (MFR) lehle kakhulu ngokunyuka kwe-epoxy chain extender,

ebonisa ukuba i-epoxy chain extender kunye ne-PA6 ine-reaction esebenzayo yokwandisa ikhonkco.

Ngokunyuka komthamo we-chain extender, i-torque yokulinganisa inyuke kuqala

kwaye ke yehla, ngenxa yokuba ubunzima bemolekyuli be-PA6 emva kokwandiswa kwekhonkco

ukwanda, ukuphonswa kwikhonkco lemolekyuli kwanda, kunye ne-viscosity enyibilikayo nayo

ukwanda, ngoko ke itorque yokulinganisa inyuke.

Ngokuhamba kwexesha, i-PA6 pellet yathamba, yadityaniswa kwaye yanyibilika ngokuthe ngcembe, i

ukuchasana kwe-rotor kuncipha, kwaye i-torque nayo yehla.

Qingdao Sainuo Chemical Co.,Ltd.Singumenzi wePE wax, PP wax,

OPEwax,EVAwax, PEMA, EBS,Zinc/Calcium Stearate….Iimveliso zethu zidlulile

theREACH, ROHS, PAHS, FDA uvavanyo.

Sainuo qiniseka wax, wamkele umbuzo wakho!

Iwebhusayithi esemthethweni: https://www.sanowax.com

E-mail：sales@qdsainuo.com

               sales1@qdsainuo.com

Idilesi: Igumbi 2702, iBlock B, iSakhiwo seLanga, indlela iJingkou, iSithili saseLicang, Qingdao,

eTshayina