labarai_banner

Labarai

Binciken ilmin mai na silicone da ƙananan man siliki na hydrogen

Silicone man wani nau'i ne na polysiloxane tare da digiri daban-daban na tsarin sarkar polymerization.An yi shi da dimethyldichlorosilane ta hanyar hydrolysis tare da ruwa don samar da zobe na farko na polycondensation.Jikin zoben yana fashe kuma an gyara shi don samar da jikin zobe mara nauyi.Sa'an nan kuma an haɗa jikin zobe, wakili na hatimi da mai kara kuzari don haɗawa da polycondensation don samun nau'i-nau'i iri-iri tare da digiri daban-daban na polymerization.Bayan an cire ƙananan tafasasshen ruwa ta hanyar distillation, ana iya samar da mai na silicone.

Man silicone da aka fi amfani da shi, ƙungiyoyin ƙwayoyin halitta duk methyl ne, wanda ake kira mai methyl silicone.Hakanan za'a iya amfani da wasu ƙungiyoyin ƙwayoyin cuta don maye gurbin wasu ƙungiyoyin methyl don inganta wasu kaddarorin mai na silicone da amfani da dalilai daban-daban.Sauran ƙungiyoyin gama gari sune hydrogen, ethyl, phenyl, chlorophenyl, trifluoropropyl, da dai sauransu. A cikin 'yan shekarun nan, an samar da man siliki da aka gyara cikin sauri, kuma akwai man siliki da aka gyara da yawa tare da kaddarorin musamman.

labarai5

Jiangxi Huahao Chemical Co., Ltd.

Man siliki gabaɗaya ba shi da launi (ko rawaya mai haske), marar ɗanɗano, mara guba, ruwa mara ƙarfi.Silicone man ba zai iya narkewa a cikin ruwa, methanol, glycol da - ethoxyethanol.Yana da wahala tare da benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride ko kerosene.Yana da ɗan narkewa a cikin acetone, dioxane, ethanol da barasa.Yana da ƙananan matsa lamba, babban ma'aunin walƙiya da wurin kunna wuta, da ƙarancin daskarewa.Tare da nau'i daban-daban na sassan sarkar n, nauyin kwayoyin yana ƙaruwa kuma danko kuma yana ƙaruwa.Akwai danko daban-daban don gyara man siliki, kama daga 0.65 centistokes zuwa miliyoyin centistokes.Idan low danko silicone man ne da za a shirya, acid yumbu za a iya amfani da matsayin mai kara kuzari da kuma polymerized a 180 ℃, ko sulfuric acid za a iya amfani da matsayin mai kara kuzari da kuma polymerized a low zazzabi don samar da high danko silicone man ko danko abu.

Dangane da tsarin sinadarai, ana iya raba mai silicone zuwa mai methyl silicone, mai ethyl silicone, mai phenyl silicone, mai methyl hydrosilicone, mai methyl phenylsilicone, mai methyl chlorophenyl silicone mai methyl chlorophenyl silicone mai, methyl ethoxy silicone mai, methyl trifluoropyl silicone mai, methyl vinyl silicone. man fetur, methyl hydroxysilicone mai, ethyl hydrosilicone man fetur, hydroxyhydrosilicone man fetur, cyanogen silicone man fetur, low hydrosilicon mai, da dai sauransu.;daga manufar, damping silicone man yana samuwa.Oil, watsa famfo silicone mai, na'ura mai aiki da karfin ruwa man fetur, insulating mai, zafi canja wurin mai, birki mai, da dai sauransu.

Silicone man yana da kyau kwarai zafi juriya, lantarki rufi, weather juriya, hydrophobicity, physiological inertia da kananan surface tashin hankali, ban da low danko zazzabi coefficient, high matsawa juriya) wasu iri kuma suna da radiation juriya.

Jiangxi Huahao Chemical Co., Ltd yana cikin filin shakatawa na masana'antu na Xinghuo.An kafa shi a watan Nuwamba 2011 kuma ya ƙunshi yanki fiye da 30 mu.A cikin 2014, an shigar da aikin lokaci na I (4500t / samfuran siliki) a cikin aiki kuma an karɓa.Babban samfuran sune: mai hydroxy silicone, man dimethylsilicone, mai ƙarancin silicone mai ƙarancin hydrogen, man silicone polyether da aka gyara da roba 107.A cikin 2017, ya wadatar da samfuran siliki na ƙasa, haɓaka mai na silicone na vinyl, man amino silicone da silanes, gami da methyltrimethoxysilane, methyltriethoxysilane da methylsilicic acid, sannan kuma ya inganta nau'ikan mai na silicone mai hydrogenated, tare da hydrogen gefuna guda ɗaya a farkon matakin, kuma ƙãra karshen hydrogen da sauran hydrogenated tsarin kayayyakin.A halin yanzu, ana nazarin man siliki mai tafasa mai ƙarfi wanda zai iya maye gurbin mai na methyl silicone.An fara aiki a cikin aikin kashi na III a cikin 2018, samfuran sun haɗa da heptamethicone, polyether modified silicone oil, silazane, silicon ether, dimethyldiethoxysilane da sauran samfuran.

Silicone emulsion

Silicone emulsion wani nau'i ne na man siliki.Ana gabatar da waɗannan abubuwa daga bangarori biyu: mai laushi mai laushi na silicone da siliki mai emulsion defoamer.

I. Silicone mai masana'anta softener

Silicone emulsion ne yafi amfani a matsayin softener ga silicone mai yadudduka.Na farko ƙarni na silicone masana'anta karewa wakili ne inji cakuda dimethylsilicone man fetur da hydrosilicon man (da abubuwan da suka samo asali).The biyu ƙarni na organosilicon masana'anta gama wakili ne hydroxyl ƙare poly biyu methyl siloxane emulsion.Ana yin ta ta hanyar emulsion polymerization na zobe methyl guda huɗu na siloxane monomer, ruwa, emulsifier, mai kara kuzari da sauran albarkatun ƙasa a ƙarƙashin wasu yanayi.Saboda an kammala polymerization da emulsification a mataki ɗaya, yana da fa'ida na gajeren sa'o'in aiki, babban aiki mai dacewa, kayan aiki mai sauƙi da aiki mai dacewa.A emulsion samu sosai barga, da kuma barbashi ne sosai uniform.A aiki polymer (hydroxyl) a duka iyakar da polymer za a iya kara mayar da martani ga samar da wani fim, wanda shi ne conducive don inganta aikace-aikace sakamako na emulsion, wanda bai isa ga inji emulsified silicone man fetur.

Hydroxyl silicone emulsion man emulsion za a iya raba zuwa dama iri emulsion, kamar cation, anion, nonionic da fili ions, bisa ga daban-daban surfactants amfani.

1. cationic hydroxyl silicone man emulsion

Emulsifier da aka yi amfani da shi a cikin cationic emulsion polymerization yawanci shine gishiri amine na quaternary (octadecyltrimethyl ammonium chloride da aka ruwaito a cikin Adabin Waje), kuma mai kara kuzari shine ammonium hydroxide.Ana iya amfani da madarar Cationic hydroxyl a cikin yadudduka daban-daban bayan kammalawa.Yana da Properties na inganta masana'anta rike, inganta masana'anta elasticity da santsi.Yana da wani musamman fa'ida: manufa mai hana ruwa wakili don yadudduka, shi ne jituwa tare da methyl hydrogen silicone man emulsion, hana ruwa da kuma hana ruwa karko.Ana iya amfani da shi azaman wakili mai hana ruwa don zanen murfin polyester da wakili mai hana ruwa don zanen katin polyester.Da sauransu.

2. anionic hydroxyl silicone man emulsion

A anionic hydroxyl madara ne halin da karfinsu a masana'anta karewa wakili, da emulsion ne sosai barga.Musamman ma, yawancin mataimakan bugu na yadi da rini sune anionic.Idan an yi amfani da emulsion na cationic hydroxy, yana da sauƙi don haifar da demulsification da man bleaching, yayin da anionic hydroxy emulsion zai iya kauce wa wannan rashin amfani, don haka ya fi shahara tare da masu amfani kuma ana amfani dashi sosai.

3. fili ionic hydroxyl silicone man emulsion

Ko da yake cationic hydroxyapatite ne mai kyau masana'anta softener, wannan emulsion ba resistant zuwa wuya ruwa da kuma ba za a iya amfani da dimethylolyl biyu hydroxyurea urea guduro.

Ko da yake cationic hydroxyapatite ne mai kyau masana'anta softener, wannan emulsion ba resistant zuwa wuya ruwa, kuma ba za a iya amfani da a cikin wannan wanka tare da dimethoxylated biyu hydroxyvinyl urea guduro (2D), kara kuzari magnesium chloride da anionic whitening wakili.Bugu da kari, saboda rashin kwanciyar hankali na emulsion, silicone polymers suna sauƙin rabu da emulsion kuma suna iyo a saman ruwa, wanda aka fi sani da "man mai bleaching".Idan an yi amfani da emulsifiers na cationic da wadanda ba na ionic a cikin emulsion polymerization, za a iya shawo kan gazawar cationic emulsifier don shirya emulsion mai na silicone hydroxyl.Silicone emulsion da aka shirya zai iya jure wa ruwa mai wuya, kuma ana iya amfani dashi a cikin wanka ɗaya tare da resin 2D, magnesium chloride da whitening wakili VBL, kuma yana da kyakkyawan juriya na zafi da daskarewa.

4. Non ionic hydroxyl silicone man emulsion

Nonionic hydroxy madara yana da mafi kyawun daidaitawa da kwanciyar hankali fiye da keɓewar madarar hydroxy, don haka ƙasashe da yawa sun yi ƙoƙari sosai don nazarin madarar nonionic hydroxy.Misali, UltrateX FSA, sabon samfurin da aka yi a Switzerland, shine emulsion maras ionic tare da nauyin kwayoyin fiye da dubu 200 da kuma shugaban hydroxyl na methylsiloxane guda biyu.Mataki ne na gaba fiye da Dc-1111 anionic hydroxyapatite emulsion a Amurka.

5. Organosilicon ƙare wakili tare da sauran ƙungiyoyi masu aiki

Domin saduwa da bukatun ci-gaba karewa na kowane irin yadudduka, inganta anti man fetur, anti-a tsaye da kuma hydrophilic Properties na silicone karewa masana'anta, da kuma yin sinadaran fiber yadudduka da yawa abũbuwan amfãni daga na halitta yadudduka, silicone ma'aikata sun yi nazarin gabatarwar. sauran kungiyoyi masu aiki irin su amino group, kungiyar amide, kungiyar ester, kungiyar cyano, kungiyar carboxyl, kungiyar epoxy, da dai sauransu. Gabatarwar wadannan kungiyoyi na sa organosilicon masana'anta gama gari suna da tasiri na musamman, misali, gabatarwar amino group a cikin kwayoyin organosilicon. ya dace da preshrunk da kuma ƙare mai laushi na ulu;gabatarwar ƙungiyar amide ya dace da ƙarewar antifouling, kuma taushi yana da kyau sosai: gabatarwar ƙungiyar cyano yana da juriya mai kyau, kuma tasirin anti-static na copolymer na polyoxyethylene ether da organosilicon yana da kyau;da organofluorine modified organosilicon yana da mai hana.Anti gurbacewa, anti-static, ruwa mai hana ruwa da sauran fa'idodi masu yawa.

Biyu.Silicone man emulsion defoamer.

Silicone man emulsion defoamer ne kullum mai a cikin ruwa (O/W) emulsion, wato, ruwa ne mai ci gaba lokaci, silicone man ne katsewa lokaci.An riga an haɗe shi da man silicone, emulsifier da wakili mai kauri, sannan a hankali ƙara ruwa don haɗuwa, ana niƙa akai-akai a cikin injin colloid har sai an sami emulsion da ake so.

Silicone man emulsion defoamer ne mai defoaming wakili yadu amfani da silicone defoamer.Ana iya amfani dashi ko'ina azaman defoamer a cikin tsarin ruwa mai ruwa.Lokacin amfani da emulsion za a iya ƙara kai tsaye zuwa tsarin kumfa, kuma ana iya samun sakamako mai kyau na lalata.Domin inganta defoaming sakamako na emulsion da daidaito na auna, shi ne kullum ba a yi amfani da kai tsaye fiye da 10% na mayar da hankali silicone man emulsion: na farko, shi ne diluted zuwa 10% ko žasa da ruwan sanyi ko kai tsaye tare da kumfa bayani.Ya kamata a shafe Taboo da ruwa mai zafi ko sanyi, in ba haka ba zai haifar da demulsification.Kwanciyar hankali na emulsion zai zama mafi muni bayan dilution, kuma abin da zai iya faruwa a cikin tsarin ajiya (demulsification).Saboda haka, da diluted emulsion ya kamata a yi amfani da wuri-wuri.Idan ya cancanta, za a iya ƙara thickeners don inganta zaman lafiyar emulsion.Don batch aiki, silicone man emulsion za a iya ƙara ko dai kafin tsarin gudanar ko a batches.Don ci gaba da aiki, emulsion na silicone ya kamata a ƙara ci gaba da ci gaba ko tazara a cikin sassan da suka dace na tsarin.

A cikin amfani da emulsion defoamers, ya kamata a yi la'akari da yanayin zafi da acid da alkaline na tsarin kumfa.Saboda emulsion na silicone mai ya fi laushi, za a cire emulsion a baya, kuma zai zama maras kyau ko rashin amfani.Adadin emulsion mai siliki shine gabaɗaya 10 zuwa 10Oppm na nauyin ruwa mai kumfa (bisa ga mitar mai na silicone).Tabbas, akwai kuma ƙasa da 10 ppm da fiye da 100 ppm a cikin lokuta na musamman.Matsakaicin da ya dace yana ƙaddara ta gwaje-gwaje.

Kullum, silicone man emulsion defoamer ne mafi yawa mai a cikin ruwa.Dangane da nau'ikan nau'ikan silicone mai, silicone mai emulsion defoamer yana da nau'ikan masu zuwa:

1. silicone man emulsion bisa biyu methyl silicone man fetur

Irin wannan defoamer an yi shi ne da man dimethylsilicon, emulsifier da ruwa.Ana iya amfani dashi ko'ina a cikin fermentation, abinci, takarda, fiber, kantin magani, guduro roba da sauransu.

2. silicone man emulsion dangane da methyl ethoxy silicone man fetur

Ana yin irin wannan nau'in defoamer da man methyl ethoxy silicone da kuma ma'adininta.

3. Silicone man emulsion dangane da ethyl silicone man fetur

A cikin 'yan shekarun nan, organosilicon defoamer yana tasowa zuwa toshe copolymerization (ko copolymerization) na organosilicon polyether.Irin wannan nau'in defoamer yana da halaye na organosilicon da polyether, don haka ƙarfin lalata yana inganta sosai;organosilicon polyether copolymer defoamer, kuma aka sani da kai emulsifying organosilicon defoamer, shi ne hydrophilic ethylene oxide sarkar ko ethylene oxide propylene oxide sarkar block (ko graft) a cikin organosilicon kwayoyin sarkar, sabõda haka, da hydrophobic siloxane part an hade tare da hydrophilic polye.A matsayin mai cire foamer, irin wannan kwayoyin yana da babban adadin yaduwa, yana iya tarwatsewa daidai a cikin matsakaicin kumfa, kuma yana da inganci mai inganci.Wani sabon nau'i ne na lalata mai inganci mai inganci.A emulsifying sakamako na kai emulsifying silicone man ba tare da emulsifier ne quite gamsarwa ga wasu tsarin.Yana da dacewa musamman ga waɗanda basu dace ba don emulsion na man siliki na janar da emulsion na man siliki na gabaɗaya.


Lokacin aikawa: Satumba-24-2022