Kodi Hydroxypropyl Starch Ether ndi chiyani?

Hydroxypropyl starch ether (HPS) ndi wowuma wosinthidwa womwe wadziwika kwambiri m'mafakitale osiyanasiyana monga wokhuthala, wokhazikika, komanso wopatsa mphamvu. Ndizochokera kumadzi osungunuka a carbohydrate omwe amachokera ku chimanga chachilengedwe, mbatata, kapena tapioca starch kudzera mu njira yosinthira mankhwala yomwe imaphatikizapo kuyambitsa magulu a hydroxypropyl ku mamolekyu owuma.

Kugwiritsiridwa ntchito kwa HPS kwafala kwambiri m’makampani azakudya chifukwa kumapangitsa kuti zakudya zambiri zisamamveke bwino, zimveke m’kamwa, komanso kuti zikhale zolimba. Amagwiritsidwa ntchito popanga soups, sauces, gravies, puddings, ndi zinthu zina zomwe zimafuna kukhuthala kapena kukhazikika. HPS imagwiritsidwanso ntchito m'makampani opanga mankhwala kuti apititse patsogolo kasamalidwe ka mankhwala, komanso zodzoladzola ndi zinthu zosamalira anthu monga ma shampoos, mafuta odzola, ndi zopakapaka.

M'nkhaniyi, tiwona momwe HPS imapangidwira, kupanga, kugwiritsa ntchito, komanso chitetezo.

Makhalidwe a Hydroxypropyl Starch Ether

Hydroxypropyl starch ether ndi ufa woyera, wopanda fungo, komanso wopanda kukoma womwe umasungunuka kwambiri m'madzi ndi zosungunulira zina za polar. Ili ndi kulemera kwa maselo kuyambira 1,000 mpaka 2,000,000 Daltons, kutengera kuchuluka kwa m'malo mwa magulu a hydroxypropyl. Digiri ya m'malo (DS) imatanthawuza kuchuluka kwa magulu a hydroxypropyl pa anhydroglucose unit (AGU) mu molekyulu ya wowuma. DS yapamwamba imabweretsa molekyulu ya HPS ya hydrophilic komanso yosungunuka m'madzi.

HPS imapezeka m'makalasi osiyanasiyana, kutengera kukhuthala kwake, kukula kwa tinthu, ndi zina. Kukhuthala kwa HPS nthawi zambiri kumawonetsedwa motengera kukhuthala kwake kwa Brookfield, komwe kumayesedwa mu centipoise (cP) pamlingo wina wometa ubweya ndi kutentha. Magiredi apamwamba kwambiri a HPS amagwiritsidwa ntchito pazinthu zokhuthala, pomwe magiredi otsika amakasitomala amagwiritsidwa ntchito pazinthu zocheperako.

Kukula kwa tinthu ta HPS ndi chinthu chofunikira, chifukwa kumakhudza dispersibility ndi flowability. HPS imapezeka mumitundu yosiyanasiyana ya tinthu, kuyambira ufa wabwino mpaka ma granules, kutengera ntchito.

Njira Yopangira Hydroxypropyl Starch Ether

Kupanga kwa HPS kumaphatikizapo kusinthidwa kwa wowuma wachilengedwe pogwiritsa ntchito kachitidwe pakati pa wowuma ndi propylene oxide (PO), yomwe imayambitsa magulu a hydroxypropyl ku mamolekyu owuma. Njirayi nthawi zambiri imachitika mu njira yamadzi yamchere yamchere, ndikuwonjezera chothandizira monga sodium hydroxide kapena potaziyamu hydroxide.

Njira yosinthira imakhudzidwa ndi zinthu zingapo, monga nthawi yochitira, kutentha, pH, chiŵerengero cha PO / wowuma, ndi ndende yothandizira. Zinthu izi zimakhudza kuchuluka kwa kulowetsedwa, kulemera kwa maselo, ndi zina zomwe zimatengera HPS.

Wowuma wosinthidwayo amatsukidwa, osasunthika, ndikuwumitsa kuti apeze ufa woyera kapena granules. Chogulitsa cha HPS chimayesedwa pazinthu zosiyanasiyana monga kukhuthala, kukula kwa tinthu, chinyezi, komanso kuyera.

Kugwiritsa ntchito Hydroxypropyl Starch Ether

Kugwiritsiridwa ntchito kwa HPS pomanga kumapindulitsa m'njira zosiyanasiyana, monga kupititsa patsogolo mphamvu ndi kukhazikika kwa konkire, kuchepetsa madzi, komanso kupititsa patsogolo kumamatira ndi kugwirizanitsa kwamatope. Zina mwazomwe zimagwiritsidwa ntchito ndi HPS pakumanga ndi:

1. Konkire:

HPS imagwiritsidwa ntchito mu konkire ngati chochepetsera madzi, chomwe chimachepetsa kuchuluka kwa madzi ofunikira pakupanga kosakanikirana koperekedwa. Izi zimapangitsa kuti konkire ikhale yamphamvu komanso yolimba kwambiri, chifukwa madzi ochulukirapo amatha kufooketsa konkire ndikupangitsa kuti ming'alu iwonongeke. HPS imathandizanso kuti konkriti igwire bwino ntchito, yomwe imapindulitsa pama projekiti akuluakulu.

2. Mtondo:

HPS imagwiritsidwa ntchito mumatope ngati pulasitiki, yomwe imapangitsa kuti matopewo azigwira ntchito bwino komanso osasinthasintha. Izi zimapangitsa kuti pakhale mgwirizano wabwino pakati pa matope ndi mayunitsi a zomangamanga, zomwe ndizofunikira kuti nyumbayo ikhale yogwirizana. HPS imachepetsanso madzi mumatope, zomwe zimapangitsa mphamvu zake komanso kulimba.

3. Zogulitsa za Gypsum:

HPS imagwiritsidwa ntchito muzinthu za gypsum monga pulasitala ndi kuphatikiza kophatikizana ngati thickener ndi stabilizer. Izi zimapangitsa kuti zinthu za gypsum zikhale zosavuta komanso zosasinthasintha, komanso kumamatira bwino komanso kugwirizanitsa. HPS imathandiziranso nthawi yokhazikitsa ndi mphamvu ya zinthu za gypsum, zomwe zimapindulitsa pa ntchito yomanga.

Kuphatikiza pa zomwe tafotokozazi, HPS itha kugwiritsidwanso ntchito pazinthu zina zomangira monga zokutira, zomatira, ndi zosindikizira. Kugwiritsiridwa ntchito kwa HPS pomanga kungathandize kuti ntchito zomanga zikhale zabwino, zogwira mtima, ndi zokhazikika, komanso kuchepetsa ndalama ndi zinyalala.