Makhalidwe akugwiritsa ntchito hydroxypropyl methylcellulose mumakampani a PVC

Chiyambi cha Hydroxypropyl Methylcellulose (HPMC)

Hydroxypropyl methylcellulose, yomwe imadziwika kuti HPMC, ndi yochokera ku cellulose yosinthidwa kuchokera ku cellulose yachilengedwe.Amagwiritsidwa ntchito kwambiri pomanga, mankhwala, chakudya ndi mafakitale ena, makamaka m'makampani a PVC.Chophimbacho ndi ufa woyera, wopanda fungo wokhala ndi madzi osungunuka bwino komanso zinthu zambiri zakuthupi ndi mankhwala zomwe zimapangitsa kuti zikhale zoyenera pa ntchito zosiyanasiyana.

Makhalidwe abwino a rheological:

Chimodzi mwazopereka zazikulu za HPMC kumakampani a PVC ndikukhudzika kwake pazinthu zama rheological.Imakhala ngati rheology modifier, yomwe imakhudza kuyenda ndi kusinthika kwa mankhwala a PVC panthawi yokonza.Izi ndizofunikira makamaka mu njira zopangira ma extrusion ndi jekeseni.

Wonjezerani PVC adhesion:

HPMC imadziwika chifukwa cha kuthekera kwake kowonjezera zomatira, zomwe mumakampani a PVC zimatanthawuza kulumikizana bwino pakati pa mankhwala a PVC ndi zida zina.Izi ndizofunikira kwambiri popanga zida za PVC ndikuphatikiza, komwe kumamatira mwamphamvu kumaso ndikofunikira kuti pakhale ntchito yabwino.

Kusunga madzi ndi kukhazikika:

M'mapangidwe a PVC, ndikofunikira kuti madzi asungidwe pamlingo wina wake panthawi yokonza.HPMC imagwira ntchito ngati chosungira madzi, kuteteza kuyanika msanga komanso kuonetsetsa kuti madzi sasintha.Izi ndizofunikira makamaka pakugwiritsa ntchito komwe hydration state ya PVC compound imakhudza katundu wa chinthu chomaliza.

Mapulogalamu otulutsidwa olamulidwa:

HPMC nthawi zambiri amagwiritsidwa ntchito limodzi ndi PVC muzowongolera zotulutsidwa.Izi ndizofala pazaulimi pomwe machitidwe a PVC amagwiritsidwa ntchito poletsa kutulutsa feteleza kapena mankhwala ophera tizilombo.Makhalidwe okhazikika komanso odziwikiratu a HPMC amathandizira kumasulidwa.

Zokhudza filimu ya PVC:

Kuwonjezera HPMC ku PVC formulations kungakhudze katundu wa filimuyo.Izi zikuphatikizapo zinthu monga kusinthasintha, kuwonekera ndi mphamvu zamakina.Kutengera zomwe zimafunikira pakumaliza, HPMC ikhoza kusinthidwa kuti ipatse filimu ya PVC zinthu zomwe mukufuna.

Kutentha ndi UV kukana:

Zogulitsa za PVC nthawi zambiri zimafunikira kupirira zosiyanasiyana zachilengedwe.HPMC imathandizira magwiridwe antchito onse a PVC powonjezera kukana kwake kusintha kwa kutentha ndi cheza cha UV.Izi ndizofunikira makamaka pamapulogalamu apanja pomwe PVC imayang'aniridwa ndi dzuwa komanso nyengo.

Zomanga ndi zoyimitsa:

HPMC imagwiritsidwa ntchito ngati chomangira pamapangidwe a PVC, kuthandizira kulumikizana kwa tinthu komanso kulimbikitsa mapangidwe a yunifolomu clumps.Kuphatikiza apo, imagwira ntchito ngati woyimitsa, kuletsa tinthu ting'onoting'ono kuti tikhazikike ndikuwonetsetsa kugawidwa kofanana mkati mwa matrix a PVC.

Konzani chiŵerengero cha maphikidwe:

Kuchita bwino kwa HPMC mu ntchito za PVC nthawi zambiri kumadalira kusiyanasiyana kwa mapangidwe.Kuyanjanitsa kuchuluka kwa HPMC ndi zowonjezera zina ndi utomoni wa PVC ndikofunikira kuti mukwaniritse zomwe mukufuna pazomaliza.

Kugwirizana ndi zina zowonjezera:

Kugwirizana ndi zina zowonjezera, plasticizers ndi stabilizers ndi mbali yofunika kwambiri ya kuphatikiza HPMC mu PVC formulations.Kuwonetsetsa kuti HPMC imagwira ntchito mogwirizana ndi zigawo zina ndizofunikira kuti pakhale kukhazikika komanso kukhazikika kwa gulu la PVC.

Kukonzekera:

Processing zinthu, kuphatikizapo kutentha ndi kuthamanga pa extrusion kapena akamaumba, zingakhudze mphamvu ya HPMC.Kumvetsetsa kukhazikika kwamafuta ndi zofunika pakukonza kwa HPMC ndikofunikira kuti mukwaniritse bwino ntchito yopanga.

Pomaliza

Mwachidule, hydroxypropyl methylcellulose imagwira ntchito mosiyanasiyana mumakampani a PVC, kuthandiza kukonza mawonekedwe, kumamatira, kusunga madzi komanso magwiridwe antchito onse azinthu zopangidwa ndi PVC.Pamene makampaniwa akupitilirabe kusinthika, zida zapadera za HPMC zitha kupitiliza kugwiritsidwa ntchito pazantchito zatsopano komanso kupita patsogolo kwaukadaulo wa PVC.Pamene ofufuza ndi opanga akufufuza mozama mumgwirizano pakati pa HPMC ndi PVC, kuthekera kwa mapangidwe atsopano ndi zida za PVC zotsogola ndizambiri.