Nyaya iyi iri muchimiro chemibvunzo nemhinduro kumuverengi nezve ruzivo rwakabatana nehydroxypropyl methyl cellulose ether, kuitira kuti uve nekunzwisisa kwakadzama kweHPMC munguva pfupi, kuitira kuti usarudze zviri nani uye ushandise mhando iyi yezvigadzirwa mukugadzirwa chaiko.
1, chii chinonyanya kushandiswahydroxypropyl methyl cellulose (HPMC)?
HPMC inoshandiswa zvakanyanya muzvinhu zvekuvaka, machira ekuputira, maresini ekugadzira, zviumbwa zvedomasi, mishonga, chikafu, machira, kurima, zvizoro, fodya nedzimwe nzvimbo. HPMC inogona kukamurwa kuita: giredhi rekuvaka, giredhi rezvekudya uye giredhi rezvekurapa nekushandiswa. Parizvino, giredhi rekuvaka repamba, mugiredhi rekuvaka, muyero weputty powder wakakura, inenge 90% inoshandiswa kugadzira putty powder, yasara inoshandiswa kugadzira simende mortar neglue.
2, hydroxypropyl methyl cellulose (HPMC) yakakamurwa kuita akawanda, musiyano uripi pakushandiswa kwayo?
HPMC inogona kukamurwa kuita mhando dzemhinduro dzinokurumidza uye dzinopisa, zvigadzirwa zvinokurumidza, mumvura inotonhora zvinopararira nekukurumidza, zvinonyangarika mumvura, panguva ino mvura haina viscosity, nekuti HPMC inongopararira mumvura, hapana kunyungudika chaiko. Anenge maminetsi maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira colloid inopenya yakajeka. Zvigadzirwa zvinonyungudika zvinopisa, mumvura inotonhora, zvinogona kupararira nekukurumidza mumvura inopisa, zvinonyangarika mumvura inopisa, kana tembiricha yadzikira kusvika kune imwe tembiricha, viscosity inooneka zvishoma nezvishoma, kusvika paumbwa colloid inopenya yakajeka. Mhinduro inopisa inogona kushandiswa chete muhupfu hweputty nemortar, muglue yemvura nependi, pachava nechiitiko cheboka, hachigone kushandiswa. MODHARA YEMHINDURO Inokurumidza, NZIRA YEKUSHANDISA YAKAKARA, IN KUSINA KUNAKA NEHUPFU HWECHIDIKI NEMOTAR, UYE MUGUTI REMUMUDZIYO NEKUPENDA, VESE VANOGONA KUSHANDISA, PASINA KUPINDA.
3, nzira dzekunyungudutsa dzehydroxypropyl methyl cellulose (HPMC) dzine izvozvo?
– A: Nzira yekunyungudutsa mvura inopisa: nekuti HPMC hainyungudutswi mumvura inopisa, saka HPMC yekutanga inogona kupararira zvakaenzana mumvura inopisa, yobva yanyungudutswa nekukurumidza pakutonhodza, nzira mbiri dzakajairika dzinotsanangurwa seizvi: 1), mumudziyo muhuwandu hwemvura inopisa inodiwa, uye yodziiswa kusvika pa70℃. Zvishoma nezvishoma wedzera hydroxypropyl methylcellulose uchikurunga zvishoma nezvishoma, HPMC yakatanga kuyerera pamusoro pemvura, uye zvishoma nezvishoma inogadzira slurry, pasi pekukurunga ichitonhodza slurry. 2), wedzera huwandu hunodiwa hwe1/3 kana 2/3 yemvura mumudziyo, uye pisa kusvika pa70℃, zvichienderana nenzira ye1), kupararira kweHPMC, kugadzirira slurry yemvura inopisa; Wobva wawedzera huwandu hwemvura inotonhora yasara muslurry inopisa, kurunga uye tonhodza musanganiswa. Nzira yekusanganisa upfu: Upfu hweHPMC nezvimwe zvinhu zvakawanda zveupfu, zvakasanganiswa zvakanaka neblender, mushure mekuwedzera mvura kuti inyunguduke, ipapo HPMC inogona kunyunguduka panguva ino, asi kwete kubatana, nekuti kona imwe neimwe diki, upfu hushoma hweHPMC chete, mvura ichanyunguduka pakarepo. – Makambani ekugadzira upfu hweputty nemortar ari kushandisa nzira iyi. Hydroxypropyl METHYL cellulose (HPMC) INOSHANDISWA SECHINHU chinosimbisa uye chinochengetedza mvura mumortar yeputty powder.
4, zviri nyore uye zviri nyore sei kuona mhando yehydroxypropyl methyl cellulose (HPMC)?
– Mhinduro: (1) kuchena: kunyangwe kuchena kusingakwanise kuziva kanaHPMCYakanaka kushandisa, uye kana ikaiswa mukugadzirwa kwechinhu chichena, ichakanganisa kunaka kwayo. Zvisinei, zvigadzirwa zvakanaka zvinonyanya kuva zvichena. (2) kunaka: Kukora kweHPMC kunowanzova 80 mesh uye 100 mesh, chinangwa chishoma ne120, Hebei HPMC kunonyanya 80 mesh, kunaka kwacho kwakanyanya, kazhinji zviri nani. (3) kutumirwa: hydroxypropyl methyl cellulose (HPMC) mumvura, kuumbwa kwecolloid yakajeka, kuona kutumirwa kwayo, kutumirwa kwacho kukuru, zviri nani, zvinhu zvisinganyunguduke mukati. Kupinda kwereactor yakatwasuka kunowanzova kwakanaka, reactor yakatwasuka yakaipisisa, asi haigone kuratidza kuti mhando yekugadzira reactor yakatwasuka iri nani pane yekugadzira reactor yakatwasuka, mhando yechigadzirwa inotsanangurwa nezvinhu zvakawanda. (4) gravity chaiyo: kukura kwegravity chaiyo, kurema kwacho kuri nani. Kupfuura kukosha, kazhinji nekuti zviri muhydroxypropyl zvakakwirira, huwandu hwehydroxypropyl hwakakwira, saka kuchengetedza mvura kuri nani.
5, hydroxypropyl methyl cellulose (HPMC) muhuwandu hweputty powder?
– Mhinduro: HPMC mukushandiswa chaiko kwemuyero, zvichienderana nemamiriro ekunze, tembiricha, mhando yecalcium ash yemuno, fomura yeputty powder uye “zvinodiwa nevatengi zvemhando yepamusoro”, uye kune zvakasiyana. Kazhinji, muyero weputty unodzivirira mvura uri pakati pe4 kg ne5 kg. Semuenzaniso: Beijing putty powder, inonyanya kuiswa 5 kg; MuGuizhou, yakawanda yacho iri 5 kg muzhizha uye 4.5 kg muchando. Huwandu hwaYunnan hudiki, kazhinji 3 kg -4 kg nezvimwewo. Uye muyero weHPMC uri pakati pe821 putty uri pakati pe2~3 kg.
6, hydroxypropyl methyl cellulose (HPMC) viscosity yakakodzera yakawanda sei?
– Mhinduro: FIRWA NEHUPFU HWEMWANA ZVINHU ZVAKAJAIRA 100 000 Zvakanaka, CHINHU CHINODIWA MUMARTAR CHAKAREBA, INODA KUSHANDISA 150 000. Uyezve, basa guru reHPMC kuchengetedza mvura, richiteverwa nekukora. Muhupfu hweputty, chero bedzi kuchengetedza mvura kwakanaka, viscosity yakaderera (7-80 000), zvinogonekawo, zvechokwadi, viscosity yakakura, kuchengetedza mvura kuri nani, kana viscosity iri kupfuura 100 000 000, viscosity haina simba guru pakuchengetedza mvura.
7, hydroxypropyl methyl cellulose (HPMC) ndedzipi zviratidzo zvikuru zvehunyanzvi?
A: Kuwanda kwehydroxypropyl uye viscosity, izvo zvinonyanya kutyiwa nevashandisi vazhinji. Kuwanda kwehydroxypropyl kwakakwira, kuchengetedza mvura kazhinji kuri nani. Kusimba, kuchengetedza mvura, hukama (asi kwete zvachose) kuri naniwo, uye viscosity, mumota wesimende zviri nani kushandisa imwe.
8, hydroxypropyl methyl cellulose (HPMC) zvinhu zvikuru zvinogadzirwa sei?
– Mhinduro: hydroxypropyl methyl cellulose (HPMC) yezvinhu zvikuru zvakagadzirwa: donje rakanatswa, chloromethane, propylene oxide, zvimwe zvinhu zvakagadzirwa zvine, mapiritsi alkali, acid, toluene, isopropyl alcohol, nezvimwewo.
9, HPMC pakushandisa putty powder, basa guru nderei, ingave chemistry?
HPMC muupfu hweputty, kukora, kuchengetedza mvura uye kuvaka mabasa matatu. Kukora: Cellulose inogona kukobvu kuita suspension, kuitira kuti mhinduro irambe yakafanana kumusoro nekudzika basa rimwe chete, inodzivirira kuyerera. Kuchengetwa kwemvura: kuita kuti upfu hweputty huome zvishoma nezvishoma, assistant ash calcium reaction pasi pesimba remvura. Kuvakwa: Cellulose ine mafuta ekuzora, inogona kuita kuti upfu hweputty huve nekuvaka kwakanaka. HPMC haibatanidzi mune chero maitiro emakemikari, inongoita basa rekubatsira chete. Putty powder yakawedzerwa mvura, pamadziro, ikemikari reaction, nekuti pane kugadzirwa kwezvinhu zvitsva, putty powder pamadziro ichidzika kubva pamadziro, ichikuyiwa kuita upfu, uye yozoshandiswa, haisisiri, nekuti yagadzira chinhu chitsva (calcium carbonate). Zvikamu zvikuru zveupfu hwekarusiyamu yegrey ndeizvi: Ca(OH)2, CaO uye musanganiswa mudiki weCaCO3, CaO+H2O=Ca(OH)2 – Ca(OH)2+CO2=CaCO3↓+H2O calcium ash mumvura nemhepo pasi pekushanda kweCO2, kuumbwa kwecalcium carbonate, uye HPMC chete kuchengetedza mvura, assistant calcium ash zviri nani kuita, zvayo hazvina kutora chikamu mune chero kuita.
10, HPMC non-ionic cellulose ether, saka chii chinonzi non-ionic?
A: Kazhinji, nonionic chinhu chiri mumvura chisingaite ioni. Ionization inzira iyo electrolyte inosanganiswa kuita maion ane chaji anofamba akasununguka mune chimwe chinhu chinonyungudutsa, senge mvura kana doro. Semuenzaniso, sodium chloride (NaCl), munyu watinodya zuva nezuva, unonyungudika mumvura uye unoite ioni kuti igadzire maion ane sodium anofamba akasununguka (Na+) ane chaji yakanaka uye maion ane chloride (Cl) ane chaji yakaipa. Nemamwe mashoko, HPMC mumvura haiparadzike kuita maion ane chaji, asi iripo semamorekuru.
11, tembiricha ye gel ye hydroxypropyl methylcellulose uye chii chine chekuita nayo?
– Mhinduro: Kupisa kwejeli kweHPMC kunoenderana nehuwandu hwayo hwemethoxy. Kana methoxy iri shoma, tembiricha yejeli inowedzerawo.
12. Pane hukama huripo pakati pehupfu hweputty neHPMC here?
– Mhinduro: upfu hweputty uye mhando yecalcium zvine hukama hwakanaka, uye HPMC haina hukama hwakawanda. Kuderera kwecalcium mucalcium uye huwandu hweCaO, Ca(OH)2 mucalcium ash hazvina kukodzera, zvinokonzera kudonha kwehupfu. Kana zvine chekuita neHPMC, saka kuchengetwa kwemvura kweHPMC kwakashata, kunokonzerawo kudonha kwehupfu. Nezvikonzero zvakananga, ndapota ona mubvunzo 9.
13, hydroxypropyl methylcellulose inonyunguduka mumvura inotonhora uye inopisa inonyunguduka mukugadzirwa, musiyano uripi?
– Rudzi rwe:HPMC runonyungudika mumvura inotonhora runobva rwagadziriswa pamusoro peglyoxal, runoiswa mumvura inotonhora runokurumidza kupararira, asi haruna kunyungudika, viscosity inokwira, inonyungudika. Rudzi rwemvura inonyungudika mukupisa haruna kubatwa neglyoxal pamusoro. Vhoriyamu yeglyoxal yakakura, kupararira kwayo kunokurumidza, asi viscosity inononoka, vhoriyamu idiki, zvakasiyana.
14, hydroxypropyl methyl cellulose (HPMC) ine hwema hwekuti chii chiri kuitika?
– Mhinduro: HPMC inogadzirwa nenzira yekunyungudutsa inogadzirwa netoluene neisopropyl alcohol semunyungudutsa. Kana kusukwa kwacho kusina kunaka, pachava nekunaka kwasara.
15, mashandisirwo akasiyana, ungasarudza sei hydroxypropyl methyl cellulose (HPMC) yakakodzera?
– Mhinduro: Kuisa putty powder: zvinodiwa zvakaderera, viscosity inosvika zviuru zana, zvakanaka, chinhu chakakosha ndechekuchengetedza mvura zviri nani. Kuisa mortar: zvinodiwa zvakakwira, zvinodiwa viscosity yakawanda, zviuru zana nemakumi mashanu zvinofanira kunge zviri nani. Kuisa glue: zvinoda zvigadzirwa zvepakarepo, viscosity yakawanda.
16, hydroxypropyl methylcellulose chii chinonzi zita rekuti 'hydroxypropyl methylcellulose'?
A: Hydroxypropyl Methyl Cellulose, Chirungu: Hydroxypropyl Methyl Cellulose chidimbu: HPMC kana zita rekuti MHPC: Hydroxypropyl Methyl Cellulose; Cellulose hydroxypropyl methyl ether; Cellulose Hypromellose, 2-hydroxypropyl methyl Cellulose ether. Cellulose hydroxypropyl Methyl ether Hyprolose.
17, HPMC pakushandisa putty powder, putty powder bubble chikonzero chei?
HPMC muupfu hweputty, kukora, kuchengetedza mvura uye kuvaka mabasa matatu. Havabatanidzwi mune chero reaction. Chikonzero chemabubbles: 1, mvura yakawandisa. 2, pasi harina kuoma, pamusoro uye kukwenya layer, zvakare nyore kupupuma.
18. Fomura yeputty powder yemadziro emukati nekunze?
– Mhinduro: upfu hweputty husingapindi mvura hwemadziro emukati: 750~ 850KG yecalcium inorema, 150~ 250KG ye grey calcium, 4~ 5KG ye cellulose ether, uye 1~ 2KG ye polyvinyl alcohol powder zvinogona kuwedzerwa zvakakodzera; Upfu hweputty yemadziro ekunze: simende chena 350KG, calcium inorema 500-550kg, calcium inorema 100-150kg, latex powder 8-12kg, cellulose ether 5KG, wood fiber 3KG.
19. Musiyano uripo pakati peHPMCuyeMC?
– MC yemethyl cellulose, idonje rakanatswa mushure mekurapwa nealkali, nemethane chloride se etherification agent, kuburikidza nematanho akasiyana-siyana uye cellulose ether. Kazhinji, mwero wekutsiva i1.6~2.0, uye kunyunguduka kunosiyana zvichienderana nemwero wekutsiva. I non-ionic cellulose ether.
(1) Kuchengetwa kwemvura kwemethyl cellulose kunoenderana nehuwandu hwayo hwekuwedzerwa, viscosity, kupfava kwezvikamu uye kumhanya kwekunyungudika kwayo. Kazhinji kuwedzera huwandu hwakawanda, kupfava kudiki, viscosity, chiyero chepamusoro chekuchengetedza mvura. Pakati pazvo, huwandu hwehuwandu hwakawedzerwa kuhuwandu hwekuchengetedza mvura hune simba guru, viscosity uye chiyero chekuchengetedza mvura hazvienderane nehukama. Mwero wekunyungudika unonyanya kutsamira padanho rekuchinja kwepamusoro uye kupfava kwezvikamu zve cellulose. Mu cellulose ether iri pamusoro, chiyero chekuchengetedza mvura chemethyl cellulose nehydroxypropyl methyl cellulose chakakwira.
(2) Methyl cellulose inogona kunyungudutswa mumvura inotonhora, mvura inopisa inonyungudutswa inosangana nematambudziko, mvura yayo ine pH=3~12 yakagadzikana zvikuru. Inoenderana zvakanaka nestarch, guanidine gum uye masurfactants akawanda. Gelation inoitika kana tembiricha yasvika patembiricha yegelation.
(3) Kuchinja kwetembiricha kuchakanganisa zvakanyanya mwero wekuchengetedza mvura yemethyl cellulose. Kazhinji, tembiricha yakakwira, kuchengetedza mvura kwakaipa. Kana tembiricha yemortar ikadarika 40℃, kuchengetedza mvura yemethyl cellulose kuchanyanya kuipa, zvichikanganisa zvikuru kuvaka mortar.
(4) Methyl cellulose ine simba rinooneka pakuvaka nekunamatira kwedhaka. Pano, "kunamatira" zvinoreva simba rinonamira riri pakati pechishandiso chemushandi nemadziro, kureva kuti, kuramba kunamatira kwedhaka. Hunhu hwekunamira hwakakura, kuramba kunamatira kwedhaka kwakakura, uye simba rinodiwa nevashandi pakushandisa rakakurawo, saka hunhu hwekuvaka hwedhaka hwakaderera.
Muzvigadzirwa zve ether ye cellulose, methyl cellulose adhesion iri padanho repakati. HPMC ye hydroxypropyl methyl cellulose, inogadzirwa nedonje rakanatswa mushure mekurapwa kwe alkalization, ne propylene oxide ne chloromethane se etherifying agent, kuburikidza ne reactions dzakawanda uye inogadzirwa ne non-ionic cellulose mixed ether. Dhigirii rekutsiva rinowanzova 1.2 ~ 2.0. Hunhu hwayo hunokanganiswa nehuwandu hwe methoxy content uye hydroxypropyl content.
(1) hydroxypropyl methyl cellulose inonyungudika mumvura inotonhora, mvura inopisa inonyungudika inosangana nematambudziko. Asi tembiricha yayo ye gelation mumvura inopisa yakakwira zvakanyanya kupfuura yemethyl cellulose. Kunyungudika kwemethyl cellulose mumvura inotonhora kwavandudzikawo zvikuru.
(2) kusimba kwehydroxypropyl methyl cellulose kwakabatana nehuremu hwayo hwemamorekuru, uye huremu hukuru hwemamorekuru ndihwo kusimba kwakakwirira. Kupisa kuchakanganisawo kusimba kwayo, tembiricha inowedzera, kusimba kunoderera. Zvisinei, kusimba kwetembiricha yepamusoro kwakaderera pane kwemethyl cellulose. Mhinduro yacho inogara yakagadzikana kana yakachengetwa patembiricha yemumba.
(3) hydroxypropyl methyl cellulose inogara yakasimba kune acid nealkali, uye mvura yayo inogadzikana zvakanyanya muhuwandu hwe pH = 2 ~ 12. Caustic soda nemvura ye lime hazvina zvazvinoita pahunhu hwayo, asi alkali inogona kukurumidzisa mwero wayo wekunyungudika uye kuvandudza viscosity yepini. Hydroxypropyl methyl cellulose inogara yakasimba kune general salts, asi kana huwandu hwemunyu hwakakwira, viscosity ye hydroxypropyl methyl cellulose solution inowanzo kuwedzera.
(4) Kuchengetwa kwemvura kwehydroxypropyl methyl cellulose kunoenderana nehuwandu hwekuwedzera kwayo, viscosity, nezvimwewo, huwandu hwakaenzana hwehuwandu hwekuchengetedza mvura hwakakwira kupfuura methyl cellulose.
(5) hydroxypropyl methyl cellulose inogona kusanganiswa nepolymer inonyungudika mumvura kuti ive mhinduro yakafanana uye ine viscosity yakawanda. Zvakadai sepolyvinyl alcohol, starch ether, plant gum nezvimwewo.
(6) Kubatana kwehydroxypropyl methyl cellulose mukugadzirwa kwemortar kwakakwirira kupfuura kwemethyl cellulose.
(7) hydroxypropyl methyl cellulose ine simba rekudzivirira ma enzymes kupfuura methyl cellulose, uye mukana wekuti enzymes solution yayo iparare zvishoma pane methyl cellulose.
20, hukama huripo pakati pekusimba kwemuviri nekupisa kweHPMC, izvo zvinofanira kutariswa pakushandisa?
– Mhinduro: Kupenya kweHPMC kunoenderana nekupisa, kureva kuti, kupenya kunowedzera nekudzikira kwekupisa. Kana tichitaura nezve kupenya kwechigadzirwa, tinoreva mhedzisiro yekuyera mhinduro yacho yemvura ye2% patembiricha ye20 degrees Celsius. Mukushanda kwakakodzera, munzvimbo dzine musiyano mukuru wekupisa pakati pezhizha nechando, kutarisirwa kunofanirwa kupihwa kune kurudziro yekushandisa kupenya kwakaderera munguva yechando, izvo zvinonyanya kubatsira pakuvaka. Zvikasadaro, kana tembiricha yakaderera, kupenya kweselulosi kuchawedzera, kana kukwenywa, kunzwa kuchave kwakasimba. Kupenya kwepakati :75000-100000 kunonyanya kushandiswa nekuda kwechikonzero cheputty: kuchengetedza mvura zvakanaka kupenya kwakanyanya :150000-200000 kunonyanya kushandiswa kune polystyrene particles thermal insulation mortar glue powder material uye glass beads thermal insulation mortar. Chikonzero: kupenya kwakanyanya, kudonha madota nekuyerera kunorembera, kuvandudza kuvaka. Asi kazhinji, kana viscosity yakakwira, kuchengetedza mvura kuchava nani, saka mafekitori mazhinji edry mortar anofunga nezvemutengo, ne medium viscosity cellulose (75,000-100000) kutsiva low viscosity cellulose (20,000-40000) kuderedza huwandu hwekuwedzera.
Nguva yekutumira: Kubvumbi-25-2024