1. Ma'anar da aikin Thickener
Additived wanda zai iya ƙara danko mai mahimmanci na zanen ruwa na ruwa ana kiranta thickeers.
Thingkers suna taka muhimmiyar rawa a cikin samarwa, adana da gina kayan suttura.
Babban aikin Thickener shine ƙara danko na shafi don biyan bukatun matakai daban-daban. Koyaya, ana buƙatar danko ta hanyar shafi a matakai daban daban. Misali:
A lokacin aiwatar da ajiya, yana da kyawawa don samun babban danko don hana sintutturar daga hankali;
A yayin aiwatar da ginin, yana da kyawawa don samun ingantaccen danko don tabbatar da cewa fenti yana da kyawawan brashity ba tare da wuce gona da iri ba;
Bayan gini, ana fatan cewa danko zai iya hanzarta komawa zuwa babban danko bayan ɗan gajeren lokaci lag (matakin matakin) don hana sagging.
Ruwa na ruwan sutturar ruwa ba Newtian bane.
Lokacin da dankalin fenti yana raguwa tare da karuwar karfi da karfi, ana kiranta wani ruwa mai zurfi, kuma mafi yawan fenti shine ruwa mai rikitarwa.
Lokacin da ɗabi'ar kwararar ruwa ta ruwa mai zurfi tana da alaƙa da tarihinta, ita ce, lokaci ne mai dogaro, ana kiranta da ruwa.
Lokacin da masana'antu mayuka, yawanci muna ƙoƙarin yin sutturar suttura, kamar ƙara ƙari.
Lokacin da tarko na rufin ya dace, zai iya warware sabuwan sabuwan matakai daban-daban na shafi na daban-daban na shafi, matakan gine-gine, da kuma bushewa.
Wasu Thickers na iya ba da fenti tare da manyan kaya, saboda yana da ingantaccen danko ko kuma a cikin karancin karfi (kamar ajiya), don hana pigment a cikin zage-zewa daga siliki daga siliki daga siliki daga siliki daga siliki daga zage-zewa. Kuma a ƙarƙashin babban karfi darajar (kamar tsari na shafi), yana da ƙarancin danko, don haɗin gwiwa yana da isasshen kwarara da matakin.
Thixotropy an wakilta ta hanyar sanarwa ta Ti kuma an auna ta hanyar wasan kwaikwayo na Brookfield.
Ti = danko (an auna a 6r / min) / danko) / an auna a 60r / Min)
2. Nau'in thickeners da tasirinsu akan kaddarorin
(1) nau'ikan cikin sharuddan tsarin sunadarai, masu kauri sun kasu kashi biyu: kwayoyin halitta da inorganic.
Nau'in Inorganic sun hada da Bentonite, Atcultite, aluminium magnesise, acrymethantlate, acrymerchrylate, acrymermeryl acrylichane etc.
Daga hangen nesa akan kyawawan kaddarorin mayafi, an kasu rai zuwa alkalumomin alkalai da kuma masu nuna ƙarfi. A cikin sharuddan buƙatun aikin, yawan thickerner ya kamata ya zama ƙasa da tasirin thikeren yana da kyau; Ba shi da sauƙi a rushe ta enzymes; Lokacin da zazzabi ko kimar ph na tsarin canje-canje, danko na mai shafi ba zai rage da muhimmanci sosai, da kuma aladu da filler ba za a yi shinge ba. ; Kyakkyawan adana ajiya; Kyakkyawan riƙe ruwa, babu wani fili mai ban sha'awa da ban mamaki kuma babu illa ga mummunan tasiri akan wasan kwaikwayon fim.
①cellulose Thickener
Sirrin sel yayi amfani da suttura galibi methylellelllulose, hydroxyethyllulose, hydroxypropylmcelcelcelyllcellllamhose, da hydroxypropripylmetllulose, da na karshen biyu an fi amfani da su da yawa.
Sellululose na Hydroxulethyl shine samfurin da aka samo ta hanyar maye gurbin ƙungiyoyin hydroxyl a kan rafin glucose tare da rukunin hydroxyetl. Bayanai da samfuran samfuran ana rarrabe su gwargwadon tsarin canji da danko.
Hakanan nau'ikan selulose na Sirkroxyl kuma sun kasu kashi na al'ada na karkatarwa, nau'in discapation da nau'in kwanciyar hankali na halittu. Har zuwa yadda hanyar amfani da ita ke damuwa, ana iya ƙara selllulose na Hydroxyl a matakai daban-daban a cikin tsarin samar da kayan aiki. Za'a iya ƙara nau'in sauri-watsawa kai tsaye a cikin bushe foda. Koyaya, darajar pH na tsarin kafin ƙara ya zama ƙasa da 7, musamman saboda ƙimar sel mai ƙima a cikin cikin barbashi, sannan kuma akwai isasshen lokacin don infullires da sauri. Hakanan za'a iya amfani da matakai masu dacewa don shirya wani tabbataccen bayani kuma ƙara zuwa tsarin shafi.
Hydroxypyl methylcelose ne wanda aka samo samfurin ta hanyar maye gurbin ƙungiyar hydroxyl a kan glucose na glucose na rukunin methoxypyl. Tasirin da yake yi shine m kamar yadda sel na hydroxyl. Kuma yana da tsayayya wa lalacewar enzymatical, amma amfanin da yake ruwa ba shi da kyau kamar yadda sel na hydroxylyl, kuma yana da rashin amfani da glelling lokacin da mai zafi. Don saman-kula da hydroxypropyl methylcellilulose, ana iya ƙara shi kai tsaye zuwa ruwa lokacin da aka yi amfani da shi. Bayan motsawa da watsawa, ƙara abubuwan alklaia kamar ruwa don daidaita darajar PH zuwa 8-9, kuma saro har sai an narkar da su. Don hydroxypoyl methylcellulose ba tare da jiyya ta ƙasa ba, yana iya soaked kuma ya kumbura da ruwan zafi, sa'an nan kuma sanyaya shi da ruwan sanyi.
②inorganic Thickener
Wannan irin Thickener galibi wasu samfuran yumɓu, kamar Buntonite, masu silse, da sauransu. Ana nuna nutsuwa, kuma ba zai iya shafar tsayayya da ruwa ba. Bayan rufin yana bushe da kafa a cikin fim, yana aiki azaman filler a fim, da sauransu.
③ roba polymer Thickener
Ruhun Polymer Thickelens ne galibi ana amfani dasu a cikin acrylic da polyurehane (masu godiya da yawa). Acrylic thickeer ne galibi acrylic polymers dauke da ƙungiyoyin carboxyl. A cikin ruwa tare da darajar pH na 8-10, ƙungiyar carboxyl ta narkar da kuma ta kumbura; Lokacin da darajar PH ta fi 10 girma 10, tana narkewa cikin ruwa kuma tana rasa tasirin thickening, don haka tasirin thickening yana da hankali ga darajar pH.
Hanyar da Thickinging Hanyar Thickate Thickerner ita ce cewa ana iya adsorbed a farfajiya na marigayi barbashi, kuma yana haɓaka motsi na ƙwayar launin fata, kuma yana ƙara haɓakar tsarin fenti. ; Na biyu, kumburin kumburin ka kara danko na ruwa.
(2) Tasirin Thickener akan kayan kwalliya
Tasirin nau'in thickenner a kan kayan aikin rheatical na shafi shine kamar haka:
Lokacin da adadin Thickeren yana ƙaruwa, dankan zane na fenti yana ƙaruwa sosai, kuma tabbatar da Canjin canji yana da rauni a lokacin da aka daidaita zuwa ga karfi na ta waje.
Tare da tasirin Thickener, danko na fenti na flacky lokacin da aka fizge karfi da karfi, nuna rikice-rikice.
Yin amfani da sel mai narkewa mai narkewa mai narkewa (kamar ebs451fQ), a babban girman ƙimar kai, danko yana da girma yayin da adadin ya yi girma.
Amfani da mai nuna alamun polyurethane da yawa (kamar wt105A), a kan babbar ƙimar kai, danko yana da girma lokacin da adadin ya yi girma.
Ta amfani da thicrylic thickee (kamar Ase600), kodayake kariyar mai tsayi tana hawa cikin sauri lokacin da adadin ya yi girma, danko yana da girma cikin sauri a mafi girman ƙimar kai.
3. Mai nuna rashin godiya
(1) Hanyar Thickening
Pellulose ether da alkali-swellatable acrylic thicken ba zai iya daidaita lokacin ruwa ba, amma ba za su haifar da mahimmancin hulɗa da fenti ba, saboda haka ba za su iya daidaita ƙwararrun hulɗa da fenti ba.
Abubuwan da ake jayayya suna da alaƙa a cikin wannan ban da thickening ta hanyar hydring a tsakaninsu, tare da barbashi watse a cikin tsarin. Wannan ƙungiyar ta nuna rases a kan manyan kudaden da suka sake sake su a low arewors, suna ba da izinin rheory na haɗin gwiwar da za a daidaita.
Hanyar da aka yi wa rai na mai ban sha'awa da kuma kwayoyin ta hydrophilic sarkar, wannan shine, yana da wasu kungiyoyi na ruwa a cikin tsari, saboda haka yana da halayen surfacemes. Yanayi. Irin waɗannan kwayoyin kwayoyin za su iya yi kawai hydrate kuma suna zage don yin baƙin ciki da ruwa, amma kuma suna samar da miceles lokacin da maida hankali game da karatun ruwa mai zurfi ya wuce wani darajar. Malleles na iya yin tarayya da barbashi polymer na emulsion da barbashi na aladu waɗanda suka ba da tsarin hanyar sadarwa mai tsayi don samar da haɓaka ƙwayar tsarin.
Abin da ya fi muhimmanci shi ne cewa waɗannan ƙungiyoyi suna cikin yanayin daidaitawa, kuma waɗancan miceles masu alaƙa zasu iya daidaita matsayinsu lokacin da aka tsara su na waje, saboda haka yana ɗaukar kaddarorin waje. Bugu da kari, tunda kwayar tana da micelles da yawa, wannan tsarin yana rage yanayin kwayoyin ruwa don yin ƙaura don haka yana ƙara dankowar mai ruwa.
(2) Matsayi a Cookings
Mafi yawan masu alfarma suna da ƙarfi, da kuma ma'aunin kwayoyin halittun nasu suna tsakanin umarni 103-104 na girma, da sel biyu na riguna masu nauyi tsakanin 105-106. Saboda ƙarancin ƙwayoyin ƙwayoyin cuta, haɓaka ƙara haɓakar haɓakawa bayan hydring ba ƙasa, don haka ra'ayinsa yana da ƙarfi fiye da na rashin tausayi mara ma'ana.
Saboda ƙarancin nauyin ƙwayoyin cuta mai zurfi na mai banƙyama mai zurfi a cikin lokacin ruwa yana da iyaka, don haka tasirin da aka yiwa lokacinsa akan ruwa ba mahimmanci ba ne. A cikin ƙarancin karancin karfi, Canjin ƙungiyar tsakanin kwayoyin halittun ya fi lalata kungiyar tsakanin kwayoyin, jihar gaba daya, kuma danko na watsawa yana kusa da danko na matsakaici na watsawa (ruwa). Saboda haka, mai godiya Thickener ya sa tsarin fenti na ruwa na ruwa na ruwa na ruwa a bayyane lokacin da yake a yankin karancin karfi.
Abubuwan da suka nuna damuwa suna ƙaruwa da makamashi tsakanin kwayoyin saboda ƙungiyar tsakanin barbashi a cikin lokaci na tarwatsa. Ta wannan hanyar, ana buƙatar ƙarin makamashi tsakanin kwayoyin a cikin girman ƙimar kai, da kuma garkuwar ƙarfin da ake buƙata don samun babban ƙarfin ƙaƙƙarfa a cikin tsararrun ƙwararru. A bayyane danko. Babban danko mai tsayi da ƙananan danko na iya zama na iya yin rashin daidaituwa na yau da kullun a cikin fenti na fenti, shine, an yi amfani da thickens guda biyu a hadewar fenti na latex. Mahimmancin, don saduwa da cikakken bukatun shafi cikin zane mai kauri da kuma murfin fim.
Lokaci: Nuwamba-24-2022