1, hydroxypropyl methyl cellulose (HPMC) inonyanya kushandiswa sei?
HPMCInoshandiswa zvakanyanya muzvinhu zvekuvaka, machira ekuputira, maresini ekugadzira, zviumbwa zvedongo, 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 yemhinduro inokurumidza uye mhando yemhinduro inopisa, zvigadzirwa zvemhinduro inokurumidza, zvinoparadzirwa nekukurumidza mumvura inotonhora, zvinonyangarika mumvura, panguva ino mvura haina viscosity, nekuti HPMC inongopararira mumvura, hapana kunyungudika chaiko. Anenge maminetsi maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira colloid yakajeka ine viscous. Zvigadzirwa zvinonyungudika zvinopisa, mumvura inotonhora, zvinogona kuparadzirwa nekukurumidza mumvura inopisa, zvinonyangarika mumvura inopisa, kana tembiricha yadzikira kusvika kune imwe tembiricha, viscosity inooneka zvishoma nezvishoma, kusvika paumbwa colloid yakajeka ine viscous. Mhinduro inopisa inogona kushandiswa chete muputty powder nemortar, mu liquid glue nependi, pachava neboka rezviitiko, hazvigone kushandiswa. Instant SOLUTION MODEL, NZIRA YEKUSHANDISA YAKAKARA, IN BE BORED NE CHILD POWDER NEMORTAR, UYE MU LIQUID GLUE AND COATING, ALL LOW DOULD APPLICATION, PASINA ZVINOPINDA.
3, nzira dzekunyungudutsa dzehydroxypropyl methyl cellulose (HPMC) dzine izvozvo?
Nzira yekunyungudutsa mvura inopisa: Nekuti HPMC hainyungudutswi mumvura inopisa, saka HPMC yekutanga inogona kunyungudutswa zvakaenzana mumvura inopisa, yobva yanyungudutswa nekukurumidza kana yatonhodzwa, nzira mbiri dzakajairika dzinotsanangurwa sedzinotevera:
1) Isa mvura inopisa inodiwa mumudziyo woipisa kusvika pa70℃. Wedzera zvishoma nezvishoma hydroxypropyl methylcellulose uchikurunga zvishoma nezvishoma, HPMC yakatanga kuyangarara pamusoro pemvura, yozobva yaita slurry zvishoma nezvishoma, ichitonhodza slurry pasi pekukurunga.
2), wedzera huwandu hunodiwa hwe 1/3 kana 2/3 yemvura mugaba, wobva wapisa kusvika 70℃, zvichienderana nenzira ye 1), HPMC dispersion, kugadzirira slurry yemvura inopisa; Wobva wawedzera huwandu hwemvura inotonhora yasara muslurry inopisa, kurunga wotonhodza musanganiswa.
Nzira yekusanganisa upfu: Upfu hweHPMC nezvimwe zvinhu zvakawanda zvine upfu, zvakasanganiswa zvakanaka neblender, mushure mekuwedzera mvura kuti inyunguduke, HPMC inogona kunyunguduka panguva ino, asi kwete kubatana, nekuti kona imwe neimwe diki, hupfu hushoma hweHPMC chete, mvura inonyunguduka 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)?
(1) kuchena: kunyangwe kuchena kusingakwanise kuona kana HPMC iri nyore kushandisa, uye kana ikaiswa mukugadzirwa kwechinhu chichena, zvinokanganisa kunaka kwayo. Zvisinei, zvigadzirwa zvakanaka zvinonyanya kuva zvichena.
(2) kupfava: Kupfava kweHPMC kunowanzova nemesh 80 uye mesh 100, chinangwa chishoma ne120, Hebei HPMC kunowanzova nemesh 80, kupfava kunowedzera, kazhinji zviri nani.
(3) kutumirwa: hydroxypropyl methyl cellulose (HPMC) mumvura, kuumbwa kwecolloid yakajeka, kuona kutumirwa kwayo, kutumirwa kwakanyanya, zviri nani, zvinhu zvisinganyunguduke mukati. Kupinda kwereactor yakatwasuka kunowanzova kwakanaka, reactor yakatwasuka yakashata, asi haigone kuratidza kuti mhando yekugadzirwa kwereactor yakatwasuka iri nani pane yekugadzirwa kwereactor yakatwasuka, mhando yechigadzirwa inotsanangurwa nezvinhu zvakawanda.
(4) simba remagetsi rinokweva: simba remagetsi rinokweva, kurema kwaro kuri nani. Kupfuura kukosha, kazhinji nekuti huwandu hwehydroxypropyl hwakakwira, huwandu hwehydroxypropyl hwakakwira, saka kuchengetedza mvura kuri nani.
5, hydroxypropyl methyl cellulose (HPMC) muhuwandu hweputty powder?
HPMC mukushandiswa chaiko kwemuyero, zvichienderana nemamiriro ekunze, tembiricha, mhando yecalcium ash yemuno, fomura yeputty powder uye "zvinodiwa nevatengi zvemhando yepamusoro", uye zvine zvakasiyana. Kazhinji, pakati pemakirogiramu mana kusvika mashanu. Semuenzaniso: Beijing putty powder, inonyanya kuisa 5 kg; MuGuizhou, mazhinji acho ari 5 kg muzhizha uye 4.5 kg muchando. Huwandu hweYunnan hudiki, kazhinji 3 kg -4 kg nezvimwewo.
6, hydroxypropyl methyl cellulose (HPMC) viscosity yakakodzera yakawanda sei?
Usaneta neUpfu hwemwana hwakakura, hunosvika zviuru zana, zvakanaka, chinodiwa muvhu chakareba, unoda kugona kushandisa zviuru zana nemakumi mashanu. Uyezve, basa guru reHPMC kuchengetedza mvura, richiteverwa nekukora. Muhupfu hweputty, chero bedzi kuchengetedza mvura kwakanaka, viscosity yakaderera (7-80 zviuru), zvinogonekawo, zvechokwadi, viscosity yakakura, kuchengetedza mvura kuri nani, kana viscosity iri kupfuura zviuru zana, viscosity haina simba guru pakuchengetedza mvura.
7, hydroxypropyl methyl cellulose (HPMC) ndedzipi zviratidzo zvikuru zvehunyanzvi?
Kuwanda kwehydroxypropyl uye viscosity, vashandisi vazhinji vane hanya neizvi zviviri. Kuwanda kwehydroxypropyl kwakakwira, kuchengetedza mvura kazhinji kuri nani. Viscosity, kuchengetedza mvura, relative (asi kwete absolute) zviri naniwo, uye viscosity, mu simende mortar zviri nani kushandisa zvimwe.
8, hydroxypropyl methyl cellulose (HPMC) zvinhu zvikuru zvinogadzirwa sei?
Hydroxypropyl methyl cellulose (HPMC) zvinhu zvikuru: donje rakanatswa, chloromethane, propylene oxide, zvimwe zvinhu zvisina kucheneswa, 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?
Kazhinji, nonionic chinhu chisingaite ioni mumvura. 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 unochinja kuita maion e sodium anofamba akasununguka (Na+) ane chaji yakanaka uye maion e chloride (Cl) ane chaji yakaipa. Nemamwe mashoko, HPMC mumvura haichinji kuita maion ane chaji, asi iripo semamorekuru.
11, tembiricha ye gel ye hydroxypropyl methylcellulose uye chii chine chekuita nayo?
Kupisa kwejeli reHPMC kunoenderana nehuwandu hwaro hwemethoxy, kana huwandu hwemethoxy hwakaderera ↓, tembiricha yejeli yakakwira ↑.
12. Pane hukama huripo pakati pehupfu hweputty neHPMC here?
Upfu hweputty uye mhando yecalcium zvine hukama hwakanaka, uye HPMC haina hukama hwakanyanya. 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 rweHPMC runonyungudika mumvura inotonhora runowanikwa mushure mekugadziriswa kwepamusoro peglyoxal, mumvura inotonhora inopararira nekukurumidza, asi haina kunyungudika chaizvo, viscosity inokwira, inonyungudika. Rudzi rwemvura inonyungudika mukupisa haruna kurapwa pamusoro neglyoxal. Vhoriyamu yeglyoxal yakakura, kupararira kwayo kunokurumidza, asi viscosity inononoka, vhoriyamu idiki, zvakasiyana.
14, hydroxypropyl methyl cellulose (HPMC) ine hwema hwekuti chii chiri kuitika?
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?
KUSHANDISA PUTA YEPUTA: chinodiwa chakaderera, viscosity inosvika zviuru zana, zvakanaka, chinhu chakakosha kuchengetedza mvura iri nani. Kushandiswa kwedhaka: chinodiwa chakakwira, chinodiwa viscosity yakawanda, zviuru zana nemakumi mashanu zvinofanira kunge zviri nani. Kushandiswa kweglue: zvinoda zvigadzirwa zvepakarepo, viscosity yakawanda.
16, hydroxypropyl methylcellulose chii chinonzi zita rekuti 'hydroxypropyl methylcellulose'?
Hydroxypropyl Methyl Cellulose, Chirungu: Hydroxypropyl Methyl Cellulose chidimbu: HPMC kana zita rekuti MHPC: Hydroxypropyl Methyl Cellulose; Cellulose hydroxypropyl methyl ether; Cellulose hydroxypropyl Methyl ether Hypromellose, 2-hydroxypropylmethyl 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?
Upfu hweputty hwemadziro emukati: 800KG yecalcium yakawanda uye 150KG yecalcium yegrey (starch ether, green chaiyo, ivhu repeng, citric acid uye polyacrylamide zvinogona kuwedzerwa zvakakodzera)
Upfu hweputty yemadziro ekunze: simende 350KG calcium inorema 500KG jecha re quartz 150KG upfu hwe latex 8-12kg cellulose ether 3KG starch ether 0.5kg huni fiber 2KG
19. Musiyano uripo pakati peHPMC neMC ndeupi?
MC imethyl cellulose, donje rakanatswa mushure mekugadziriswa kwealkali, ine methane chloride se etherification agent, kuburikidza nekuita kwakasiyana-siyana kugadzira 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 mukushandiswa kwaro rakakurawo, saka hunhu hwekuvaka hwedhaka hwakaderera. Muzvigadzirwa zve cellulose ether, kubatana kwemethyl cellulose kuri padanho repakati.
HPMC yehydroxypropyl methyl cellulose, inogadzirwa nedonje rakanatswa mushure mekurapwa kwealkalizing, nepropylene oxide nechloromethane se etherifying agent, kuburikidza nematanho akasiyana-siyana 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.
Chii chinofanira kutariswa pakushandisa hukama huripo pakati pekusimba kwemuviri nekupisa kweHPMC?
Kusimba kweHPMC kunoenderana nekupisa, kureva kuti, kusimba kunowedzera nekudzikira kwekupisa. Kana tichitaura nezvekusimba kwechigadzirwa, tinoreva mhedzisiro yekuyera 2% yemvura pakupisa kwe20 degrees Celsius.
Mukushanda kwayo, munzvimbo dzine musiyano mukuru wekupisa pakati pezhizha nechando, kunofanira kutariswa kurudziro yekushandisa viscosity yakaderera munguva yechando, iyo inonyanya kubatsira pakuvaka. Zvikasadaro, kana tembiricha yakaderera, viscosity ye cellulose ichawedzera, kana ichikwenywa, kunzwa kuchava kwakasimba.
Viscosity yepakati: 75000-100000 inonyanya kushandiswa pakuisa putty
Chikonzero: kuchengetedza mvura zvakanaka
Viscosity yakakura:150000-200000 inonyanya kushandiswa pakugadzira thermal insulation mortar upfu uye magirazi beads thermal insulation mortar.
Chikonzero: kusviba kwakanyanya, dhaka harisi nyore kudonhedza, kuyerera kwaro 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: Gunyana-14-2022