Kusviba kwakaderera HPMC:HPMC 400 inonyanya kushandiswa pakugadzira dhaka rinozvienzanisa, asi rinowanzo tengwa kunze kwenyika.
Chikonzero: Kusviba kwakaderera, kunyangwe mvura isingachengetwi zvakanaka, asi kuenzana kwayo kwakanaka, uye huwandu hwemortar hwakakwira.
Kusviba kwepakati nepakati:hydroxypropyl methylcelluloseHPMC 20000-40000 inonyanya kushandiswa pakunamira mataira, caulking agent, anti-cracking mortar, thermal insulation bonding mortar, nezvimwewo.
Chikonzero: kushanda zvakanaka, kuwedzera mvura shoma, kuomarara kwakanyanya kwedhaka.
1. Chinangwa chikuru chehydroxypropyl methylcellulose (HPMC) ndechei?
——A: HPMC inoshandiswa zvakanyanya muzvinhu zvekuvaka, machira ekuputira, maresini ekugadzira, zviumbwa zvedoro, mishonga, chikafu, machira, kurima, zvizoro, fodya nedzimwe nzvimbo dzeindasitiri. HPMC inogona kukamurwa kuita: giredhi rekuvaka, giredhi rezvekudya uye giredhi remishonga zvichienderana nechinangwa. Parizvino, zvigadzirwa zvakawanda zvemumba ndezve giredhi rekuvaka. Mugiredhi rekuvaka, huwandu hweputty powder hwakakura kwazvo, inenge 90% inoshandiswa putty powder, uye yasara inoshandiswa simende mortar neglue.
2. Kune mhando dzakasiyana dzehydroxypropyl methylcellulose (HPMC), uye musiyano uripi pakushandiswa kwadzo?
——Mhinduro: HPMC inogona kukamurwa kuita mhando yekukurumidza uye mhando yekupisa. Zvigadzirwa zvemhando yekukurumidza zvinopararira nekukurumidza mumvura inotonhora uye zvinonyangarika mumvura. Panguva ino, mvura haina viscosity, nekuti HPMC inongopararira mumvura chete uye haina kunyungudika chaiko. Mushure memaminitsi angangoita maviri, viscosity yemvura yakawedzera zvishoma nezvishoma, zvichiita colloid yakajeka ine viscous. Zvigadzirwa zvinonyungudutsa kupisa, kana zvasangana nemvura inotonhora, zvinogona kuparadzirwa nekukurumidza mumvura inopisa, uye zvinonyangarika mumvura inopisa. Kana tembiricha yadzikira kusvika kune imwe tembiricha (chigadzirwa chekambani yedu chiri 65 degrees Celsius), viscosity inooneka zvishoma nezvishoma kusvika yagadzira colloid yakajeka ine viscous. Mhando yekupisa inonyunguduka inogona kushandiswa chete muputty powder nemortar. Mu liquid glue nependi, clumping inoitika uye haigone kushandiswa. Instant type ine mashandisirwo akasiyana-siyana. Inogona kushandiswa muputty powder nemortar, pamwe neliquid glue nependi, pasina chero zvinopesana.
3. Ndedzipi nzira dzekunyungudutsa hydroxypropyl methylcellulose (HPMC)?
——Mhinduro: Nzira yekunyungudutsa mvura inopisa: Sezvo HPMC isinganyungudutswe mumvura inopisa, HPMC inogona kunyungudutswa zvakaenzana mumvura inopisa pakutanga, yozonyungudutswa nekukurumidza kana yatonhodzwa. Nzira mbiri dzakajairika dzinotsanangurwa seizvi:
1) Isa mvura inopisa inodiwa mumudziyo woipisa kusvika pa70°C. Hydroxypropyl methylcellulose yakawedzerwa zvishoma nezvishoma nekukurunga zvishoma nezvishoma, pakutanga HPMC yaiyerera pamusoro pemvura, uye zvishoma nezvishoma yakaumba slurry, iyo yakatonhodzwa nekukurunga.
2), wedzera 1/3 kana 2/3 yehuwandu hwemvura hunodiwa mumudziyo, woipisa kusvika 70 ° C, zvichienderana nenzira ye1), paradzira HPMC, gadzira slurry yemvura inopisa; wobva wawedzera huwandu hwemvura inotonhora yasara mumvura inopisa. Muslurry, musanganiswa wacho waitonhodzwa mushure mekukurunga.
Nzira yekusanganisa upfu: Sanganisa upfu hweHPMC nezvimwe zvinhu zvakawanda zvine upfu, sanganisa zvakanaka nemuchina wekusanganisa, wobva wawedzera mvura kuti inyunguduke, ipapo HPMC inogona kunyungudutswa panguva ino isina kubatana, nekuti pane HPMC diki chete mukona diki yega yega. Upfu huchanyunguduka pakarepo kana hwasangana nemvura. ——Nzira iyi inoshandiswa nevagadziri veputty powder nemortar. [Hydroxypropyl methylcellulose (HPMC) inoshandiswa semushonga unosimbisa uye unochengetedza mvura muputty powder mortar.]
4. Ungatonga sei mhando yehydroxypropyl methylcellulose (HPMC) zviri nyore uye nenzira isinganzwisisike?
——Mhinduro: (1) Kuchena: Kunyange zvazvo kuchena kusingakwanise kuona kana HPMC iri nyore kushandisa, uye kana chinhu chinopenya chikawedzerwa mukugadzirwa, chinokanganisa kunaka kwayo. Zvisinei, zvigadzirwa zvakawanda zvakanaka zvine kuchena kwakanaka. (2) Kuchena: Kuchena kweHPMC kunowanzova 80 mesh uye 100 mesh, uye 120 mesh ishoma. Yakawanda yeHPMC inogadzirwa muHebei i80 mesh. Kuchena kwakanyanya, ndiko kuri nani. (3) Kutumira: Isa hydroxypropyl methylcellulose (HPMC) mumvura kuti igadzire colloid yakajeka, uye tarisa kutumirwa kwayo. Kutumira kwakakwira, ndiko kuri nani, zvichiratidza kuti hapana zvinhu zvakawanda zvisinganyunguduke mairi. Kupinda kwereactor yakatwasuka kunowanzova kwakanaka, uye reactor yakatwasuka yakaipa, asi hazvigone kutaurwa kuti mhando yereactor yakatwasuka iri nani pane yereactor yakatwasuka, uye pane zvinhu zvakawanda zvinosarudza kunaka kwechigadzirwa. (4) Simba regiravhiti: kukura kwegiravhiti chaiyo, kurema ndiko kuri nani. Simba guru remuchadenga rakakura, kazhinji nekuti huwandu hwehydroxypropyl hurimo hwakakwira, uye huwandu hwehydroxypropyl hwakakwira, kuchengetedza mvura kuri nani.
5. Huwandu hwehydroxypropyl methylcellulose (HPMC) mupudhi yeputty?
——Mhinduro: Huwandu hweHPMC hunoshandiswa mukushandiswa hunoenderana nemamiriro ekunze, tembiricha, mhando yecalcium yemuno, fomura yeputty powder uye "mhando inodiwa nevatengi". Kazhinji, iri pakati pe4 kg ne5 kg. Semuenzaniso, huwandu hwakawanda hweputty powder muBeijing i5 kg; huwandu hwakawanda hweputty powder muGuizhou i5 kg muzhizha uye 4.5 kg muchando;
6. Chii chinonzi viscosity yakakodzera yehydroxypropyl methylcellulose (HPMC)?
——Mhinduro: Upfu hweputty hunowanzova 100,000 yuan, uye mortar inoda zvakawanda, uye iri nyore kushandisa pa150,000 yuan. Uyezve, basa guru reHPMC nderekuchengetedza mvura, richiteverwa nekukora. Muupfu hweputty, chero bedzi mvura iri kuchengetwa zvakanaka uye viscosity yakaderera (70,000-80,000), zvinogonekawo. Ehe, viscosity yakakwira, uye mvura iri kuchengetwa zviri nani. Kana viscosity ikadarika 100,000, mhedzisiro yeviscosity pakuchengetwa kwemvura haisi yakawanda.
7. Ndezvipi zviratidzo zvikuru zve hydroxypropyl methylcellulose (HPMC)?
——Mhinduro: Kuwanda kwehydroxypropyl uye viscosity, vashandisi vazhinji vanokoshesa zviratidzo zviviri izvi. Kana hydroxypropyl yakawanda, kuchengetedza mvura kuri nani. Viscosity yakawanda, kuchengetedza mvura, zviri nani (pane kunyanyisa), uye viscosity yakawanda, kushandiswa kuri nani mumota yesimende.
8. Ndezvipi zvinhu zvikuru zve hydroxypropyl methylcellulose (HPMC)?
—— A: Zvinhu zvikuru zve hydroxypropyl methylcellulose (HPMC): donje rakanatswa, methyl chloride, propylene oxide, zvimwe zvinhu zvinosanganisira flake alkali, acid, toluene, isopropanol, nezvimwewo.
9. Basa guru reHPMC mukushandisa putty powder nderei, uye pane chemistry here?
——Mhinduro: HPMC ine mabasa matatu ekukora, kuchengetedza mvura uye kuvaka mupudhi yeputty. Kukora: Cellulose inogona kukobvurwa kuti irambe yakamira, kuchengetedza mhinduro yakafanana uye yakafanana, uye kudzivirira kudonha. Kuchengetwa kwemvura: Ita kuti putty powder iome zvishoma nezvishoma, uye kubatsira kuita kwecalcium yedota pasi pekushanda kwemvura. Kuvaka: Cellulose ine mafuta ekuzora, izvo zvinogona kuita kuti putty powder ishande zvakanaka. HPMC haibatanidzi mune chero reaction yemakemikari uye inongotamba basa rekubatsira. Kuwedzera mvura kuputty powder uye kuiisa pamadziro ichemical reaction. Nekuda kwekuumbwa kwezvinhu zvitsva, bvisa putty powder pamadziro kubva pamadziro, uikuya kuita upfu, woishandisa zvakare. Hazvishande, nekuti zvinhu zvitsva (calcium carbonate) zvaumbwa. ) kumusoro. Zvinhu zvikuru zviri muupfu hwecalcium yemumadota ndeizvi: musanganiswa weCa(OH)2, CaO uye huwandu hushoma hweCaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O Kalsiamu yemumadota mumvura nemhepo Pasi pekushanda kweCO2, calcium carbonate inogadzirwa, nepo HPMC ichingochengeta mvura chete uye ichibatsira kuita zviri nani kwecalcium yemumadota, uye haibatanidzi mune chero chiito pachayo.
10. HPMC i-non-ionic cellulose ether, saka chii chinonzi non-ionic?
- Mhinduro: Mumashoko epasi rose, ma non-ion zvinhu zvisingaite ioni mumvura. Ionization zvinoreva maitiro ayo electrolyte inosanganiswa kuita ma free-moving charged ions mune solvent chaiyo (yakadai semvura, alcohol). Semuenzaniso, sodium chloride (NaCl), munyu unodyiwa zuva rega rega, unonyunguduka mumvura uye unoite ioni kuti ugadzire ma free moving sodium ions (Na+) ane positive charge uye ma chloride ions (Cl) ane negative charge. Kureva kuti, kana HPMC ikaiswa mumvura, haiparadzike kuita ma charged ions, asi inovapo muchimiro chemamorekuru.
Nguva yekutumira: Gumiguru-17-2022