Chain extender ndi mtundu wazinthu zomwe zimatha kukulitsa unyolo wa maselo ndikuwonjezera

kulemera kwa maselo pochita ndi gulu logwira ntchito pa tcheni cha polima.

Ambiri ntchito kusintha makina katundu ndi processing katundu wa

polyurethane, poliyesitala, nayiloni ndi zinthu zina.

Epoxy chain extender ndi chain extender yokhala ndi glycidyl methacrylate (GMA) .

Zomwe zimagwiritsidwa ntchito kwambiri ndi epoxy chain extenders zimaphatikizapo styrene-glycidyl methacrylate, yomwe ili nayo

kukhazikika kwamafuta abwino ndipo kumatha kutsegulidwa kwamankhwala otsegula ndi PA6, osati

koyera thupi kusakaniza.Itha kugwiritsidwanso ntchito pakubwezeretsanso zinyalala za PET ndi zina.The

ntchito ya epoxy chain extenders mu nayiloni yosinthidwa ndi motere:

1. Zotsatira za kulemera kwa maselo ndi kukhuthala kwamkati

Epoxy chain extenders amatha kuchitapo kanthu ndi gulu lomaliza la amino ndi gulu lomaliza la carboxyl

PA6, ndiyeno sinthani kulemera kwa molekyulu ya PA6.Komabe, gelation ikhoza kuchitika panthawiyi

unyolo kutambasuka anachita, choncho m'pofunika kulamulira zinthu zoyenera, makamaka

kutentha ndi wononga liwiro, kuteteza mtanda kulumikiza mu zotakasika extrusion.

The intrinsic viscosity ya PA6 inakula mofulumira ndi kuwonjezeka kwa kuchuluka kwa unyolo

wowonjezera.Pamene zili unyolo extender kuchuluka kwa misa kachigawo, ndi

kukhuthala kwamkati kwa PA6 kunatsika pang'ono.Izi ndichifukwa choti terminal gulu la PA6 limatha

chitani mwachangu ndi gulu la epoxy mu unyolo wowonjezera chifukwa cha polarity ndi haidrojeni

mgwirizano.Pamene kuchuluka kwa unyolo extender ndi zolimbitsa, gawo la unyolo wautali

mamolekyu mu dongosolo amawonjezeka ndipo mamasukidwe akayendedwe amawonjezeka moyenerera;

Komabe, mongaZotsatira zake, zomwe zili mu PA6 zimachepa, ndikugundana

mwayi pamapeto a unyolo wa maselo amachepetsa kwambiri chifukwa cha chikoka cha

kufalikira kwa kutenthandi kutalika kwa unyolo wa molekyulu, kuwonjezerapo, unyolo wochuluka kwambiri

zitha kupangitsa kuti agel osakaniza mu dongosolo, zomwe zimabweretsa kuchepa kwa unyolo kutambasuka

kuchita bwinondi PA6 intrinsic viscosity.

2. Mmene makina katundu

Kuchuluka kwa molekyulu ya PA6 kudakulitsidwa pambuyo pakukulitsa unyolo ndi unyolo wa epoxy

extender, Kulimba kwa zinthu kumatha kupitsidwanso bwino ndi kuchepa

Kuonjezera apo, ndi kuwonjezeka kwa kutalika kwa unyolo wa maselo,

kutsekereza pakati pa maunyolo kumawonjezeka, ndipo unyolo wa maselo ndizovuta kuti uzembe.Mu

motere, mphamvu yamphamvu imatha kutengeka ndikusintha kasinthidwe ka maselo

unyolo pamene akhudzidwa ndi dziko lakunja.Koma pamene misa gawo la unyolo extender

imaposa gawo linalake, zida zonse zamakina zimachepetsedwa./n

3. Mmene rheological katundu

The melt flow rate (MFR) idatsika kwambiri ndi kuwonjezeka kwa epoxy chain extender,

kusonyeza kuti epoxy unyolo extender ndi PA6 anali ogwira ntchito unyolo kuwonjezera anachita.

Ndi kuchuluka kwa kuchuluka kwa unyolo wowonjezera, torque yofananira idakula poyamba

kenako anachepa, chifukwa wachibale molekyulu kulemera kwa PA6 pambuyo unyolo kutambasuka

kuchuluka, kumangiriridwa mu unyolo wa mamolekyulu kumawonjezeka, komanso kusungunula mamachulukidwe

kuchuluka, motero torque yofananira ikuwonjezeka.

M'kupita kwa nthawi, PA6 pellet anafewetsa, anali opangidwa ndi kusungunuka pang'onopang'ono, ndi

kukana kwa rotor kunachepa, ndipo torque nayonso idachepa.

Malingaliro a kampani Qingdao Sainuo Chemical Co.,Ltd.Ndife opangasera PE, PP sera,

OPEwax,EVAwax, PEMA, EBS,Zinc/Calcium Stearate….Zogulitsa zathu zadutsa

theREACH, ROHS, PAHS, FDA kuyesa.

Sainuo khalani otsimikiza sera, landirani kufunsa kwanu!

Webusayiti: https://www.sanowax.com

E-mail：sales@qdsainuo.com

               sales1@qdsainuo.com

Adiresi: Malo 2702, Block B, Suning Building, Jingkou Road, Licang District, Qingdao,

China