Hydroxyethylcellulose (HEC) ndi yosunthika komanso yolimbikira yomwe imagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana.Chigawochi chimachokera ku cellulose, polima yachilengedwe yomwe imapezeka mochuluka m'makoma a cellulose.Katundu wapadera wa HEC umapangitsa kukhala koyenera kukulitsa zinthu zosiyanasiyana, kuchokera kuzinthu zosamalira anthu kupita kuzinthu zamakampani.
Ma cellulose mwachidule
Ma cellulose ndi kagayidwe kachabechabe kamene kamapangidwa ndi maunyolo ang'onoang'ono a mamolekyu a glucose olumikizidwa ndi ma β-1,4-glycosidic bond.Ndilo gawo lalikulu la makoma a cell cell, kupereka kulimba ndi mphamvu kubzala ma cell.Komabe, mawonekedwe ake achilengedwe sasungunuka ndipo ali ndi magwiridwe antchito pang'ono pazinthu zina.
zotumphukira za cellulose
Pofuna kupititsa patsogolo ntchito ya cellulose, zotumphukira zosiyanasiyana zapangidwa posintha mawonekedwe ake.Chimodzi mwazinthu zoterezi ndi hydroxyethyl cellulose (HEC), momwe magulu a hydroxyethyl amalowetsedwa mu cellulose backbone.Kusintha kumeneku kumapereka katundu wapadera wa HEC, ndikupangitsa kuti ikhale yosungunuka m'madzi komanso yogwira ntchito ngati thickener.
Zithunzi za HEC
Kusungunuka
Chimodzi mwazinthu zazikulu za HEC ndikusungunuka kwake m'madzi.Mosiyana ndi cellulose yachilengedwe, HEC imasungunuka mosavuta m'madzi, kupanga yankho lomveka bwino.Kusungunuka uku kumapangitsa kukhala kosavuta kuphatikiza mumitundu yosiyanasiyana.
Rheological katundu
HEC imasonyeza khalidwe la pseudoplastic kapena shear-thinning, kutanthauza kuti kukhuthala kwake kumachepa pansi pa kumeta ubweya wa ubweya ndipo kumawonjezeka kachiwiri pambuyo poti kupanikizika kumatsitsimutsidwa.Rheology iyi ndiyofunikira pakugwiritsa ntchito komwe kumafunikira kufalikira kapena kutsanulira mosavuta, monga kupanga utoto, zomatira ndi zinthu zosamalira anthu.
pH kukhazikika
HEC imakhala yokhazikika pamitundu yambiri ya pH, ndikupangitsa kuti ikhale yoyenera kugwiritsidwa ntchito muzinthu za acidic, zandale komanso zamchere.Kusinthasintha kumeneku kwathandizira kuti anthu ambiri azilandira m'mafakitale osiyanasiyana kuphatikizapo zodzoladzola, mankhwala ndi zakudya.
Mapulogalamu a HEC
mankhwala osamalira munthu
Shampoos ndi Zopangira: HEC nthawi zambiri imagwiritsidwa ntchito kukulitsa zinthu zosamalira tsitsi, kupereka mamasukidwe abwino komanso kuwongolera kapangidwe kake.
Mafuta odzola ndi odzola: M'mapangidwe osamalira khungu, HEC imathandiza kukwaniritsa kugwirizana komwe kukufunikira ndikuwonjezera kufalikira kwa mafuta odzola ndi mafuta odzola.
Mankhwala otsukira m'mano: Kachitidwe kake ka pseudoplastic kamathandizira kupanga mankhwala otsukira mano omwe amalola kugawa mosavuta ndikufalikira panthawi yotsuka.
Zopaka ndi Zopaka
Utoto wa latex: HEC imathandizira kukulitsa kukhuthala ndi kukhazikika kwa utoto wa latex, kuwonetsetsa kuti ikugwiritsidwa ntchito padziko lonse lapansi.
Zomatira: Pazinthu zomatira, HEC imathandizira kuwongolera kukhuthala komanso kukonza zomangira.
mankhwala
Kuyimitsidwa kwa Oral: HEC imagwiritsidwa ntchito kukulitsa kuyimitsidwa kwapakamwa kuti ipereke mawonekedwe okhazikika komanso okoma pagulu lamankhwala.
Ma gels apamutu: Kusungunuka kwa HEC m'madzi kumapangitsa kuti ikhale yoyenera kupanga ma gels apamutu, kuonetsetsa kuti ntchito ndi kuyamwa mosavuta.
makampani azakudya
Maswiti ndi mavalidwe: HEC imagwiritsidwa ntchito kulimbitsa ma sauces ndi mavalidwe, kuwongolera mawonekedwe awo komanso kumva kwapakamwa.
Zophika Zophika: M'maphikidwe ena ophika, HEC imathandizira kukulitsa ma batter ndi mtanda.
Kupanga ndi kuwongolera khalidwe
kaphatikizidwe
HEC imapangidwa ndi etherification ya cellulose ndi ethylene oxide pansi pamikhalidwe yoyendetsedwa.Mlingo wa substitution (DS) wa gulu la hydroxyethyl ukhoza kusinthidwa panthawi ya kaphatikizidwe, motero zimakhudza ntchito yomaliza ya HEC.
QC
Njira zoyendetsera khalidwe ndizofunika kwambiri kuti zitsimikizire kuti HEC imagwira ntchito mosiyanasiyana.Magawo monga kulemera kwa maselo, kuchuluka kwa m'malo ndi chiyero amayang'aniridwa mosamala panthawi yopanga.
malingaliro a chilengedwe
Mofanana ndi mankhwala aliwonse, zinthu zachilengedwe ndizofunikira.HEC imachokera ku cellulose ndipo imakhala yowola kwambiri kuposa zopangira zina.Komabe, ndikofunikira kulingalira momwe chilengedwe chimakhudzira momwe amapangira ndikugwiritsa ntchito pazinthu zosiyanasiyana.
Pomaliza
Mwachidule, hydroxyethylcellulose (HEC) imadziwika kuti ndi yolimba komanso yosunthika yomwe imagwiritsidwa ntchito m'mafakitale angapo.Makhalidwe ake apadera, kuphatikizapo kusungunuka kwa madzi, khalidwe la rheological ndi pH kukhazikika, zimapangitsa kuti zikhale zofunikira pakupanga mitundu yosiyanasiyana ya mankhwala.Pamene mafakitale akupitiriza kufunafuna njira zina zowononga chilengedwe, katundu wa HEC wopangidwa kuchokera ku cellulose wa zomera amapanga chisankho chokhazikika pa ntchito zosiyanasiyana.Kupitiliza kufufuza ndi kusinthika kwazinthu zochokera ku cellulose monga HEC kungapangitse kupita patsogolo, kupereka ntchito zapamwamba komanso kuchepetsa chilengedwe.
Nthawi yotumiza: Dec-02-2023