1、 Kev ua haujlwm tsis zoo
Kev tsis zoo ntawm cov yas: Qhov ntau ntawm cov CPE qis dua ntxiv yuav tsum tau nce ntxiv kom ua tiav qhov cuam tshuam tiv thaiv kev cuam tshuam, ua rau lub sijhawm yas ntev, tsis sib npaug ntawm lub zog, thiab cuam tshuam rau kev ua haujlwm ntau lawm. Cov calcium hauv cov khoom cuav CPE nyuaj rau yas, ua rau muaj cov pob dawb lossis cov cim ntawm qhov chaw ntawm cov khoom (xws li cov kav dej hluav taws xob).
Txo qhov fluidity: Kev sau ntau dhau (xws li calcium carbonate) txo qhov purity ntawm CPE, rhuav tshem qhov sib npaug ntawm cov yaj, ua rau cov fluidity poob qis thaum lub sijhawm extrusion lossis txhaj tshuaj molding, thiab ua rau cov khoom siv thauj khoom ntau ntxiv.
2, Cov khoom tsis zoo
Kev puas tsuaj ntawm kev ua haujlwm ntawm lub tshuab: Cov khoom siv hloov kho tsis txaus hauv CPE qis dua ua rau lub zog cuam tshuam thiab kev ywj pheej ntawm cov khoom PVC txo qis, ua rau lawv yooj yim tawg. Lub zog tensile txo qis vim yog kev puas tsuaj ntawm CPE cov qauv molecular lossis kev cuam tshuam los ntawm cov khoom sau (hmoov calcium ua rau lub zog intermolecular tsis muaj zog).
Kev puas tsuaj ntawm qhov zoo li pom tseeb: kev ua kom cov hmoov calcium tsis zoo ua rau qhov ci ntsa iab ntawm qhov chaw thiab ua rau qhov sib txawv ntawm cov xim ntawm cov profiles / yeeb nkab nce ntxiv, ua rau pom cov pob lossis kab txaij.
Kev sib kis tsis sib xws ntawm cov khoom sau (vim yog qhov sib txawv ntawm qhov ceev) ua rau muaj kev hloov pauv tseem ceeb hauv kev ua tau zoo ntawm cov khoom los ntawm tib pawg.
Kev puas tsuaj rau lub sijhawm ntev: CPE tsis zoo tsis muaj kev tiv thaiv huab cua thiab thermal stability txaus (cov ntsiab lus chlorine tsis zoo lossis catalytic decomposition ntawm cov khoom tsis huv), ua kom cov khoom laus thiab daj.
3, Cov nqi tsim khoom nce ntxiv
Kev siv ntau ntxiv yuam kev: Txhawm rau them rau qhov poob ntawm kev ua tau zoo, yuav tsum ntxiv 20% -30% ntawm CPE qis dua, uas ua rau cov nqi khoom siv raw nce ntxiv.
Kev nce nqi ntawm cov khoom pov tseg: Kev ua haujlwm tsis zoo thiab kev hloov pauv ntawm kev ua haujlwm ua rau muaj kev nce nqi ntawm cov khoom pov tseg 5% -10%, thiab kev tsim khoom ntau zaus ua rau lub zog thiab cov sijhawm ua haujlwm nkim.
Cov nqi zais cia: Cov khoom siv hnav thiab tsim kua muag ntau zuj zus (vim yog lub zog tsis zoo), thiab yuav tsum tau hloov kho cov txheej txheem ntau zaus, ua rau nyuaj rau kev tswj hwm.
4, Cov kev phom sij zais ntawm cov CPE uas raug adulterated
Txo tus nqi vim yog kev ua qias tuaj → Kev ua haujlwm tsis txaus → Kev siv ntxiv → Kev poob kev tswj hwm ntawm cov txheej txheem → Kev nce ntxiv ntawm cov khib nyiab → Kev rov qab los ntawm tus nqi tiag tiag
Xaiv CPE ib txwm muaj nrog cov ntsiab lus chlorine ruaj khov (35% -38%) thiab tsis muaj kev sau tsis raug cai yog qhov tseem ceeb kom ntseeg tau tias PVC ua haujlwm tau zoo thiab cov khoom zoo. Shandong Bangtai Petrochemical (Group) Co., Ltd. muaj pab pawg tsim khoom siv thev naus laus zis los tiv thaiv qhov zoo ntawm koj cov khoom.
Lub sijhawm tshaj tawm: Lub Rau Hli-07-2025
