Low viscosity HPMC : HPMC 400 inonyanya kushandiswa kune yega-leveling dhaka, asi kazhinji inotengeswa kunze kwenyika.
Chikonzero: Iyo viscosity yakaderera, kunyangwe kuchengetwa kwemvura kwakashata, asi kuenzana kwakanaka, uye dhaka density yakakwirira.
Pakati uye yakaderera viscosity:hydroxypropyl methylcelluloseHPMC 20000-40000 inonyanya kushandiswa kunamatira mataira, caulking agent, anti-cracking mortar, thermal insulation bonding mortar, nezvimwe.
Chikonzero: kushanda zvakanaka, kuwedzera kwemvura kushoma, kusimba kwedhaka.
1. Chii chinangwa chikuru chehydroxypropyl methylcellulose (HPMC)?
——A: HPMC inoshandiswa zvakanyanya mukuvaka, machira, masisitimu ekugadzira, ceramics, mishonga, chikafu, machira, kurima, zvizorwa, fodya uye mamwe maindasitiri. HPMC inogona kukamurwa kuita: giredhi rekuvaka, giredhi rekudya uye giredhi remishonga zvinoenderana nechinangwa. Parizvino, zvizhinji zvezvigadzirwa zvepamba ndezvekuvaka giredhi. Mugiredhi rekuvaka, huwandu hweputty hupfu hwakakura kwazvo, inenge 90% inoshandiswa kune putty powder, uye imwe yakasara inoshandiswa kune simende dhaka uye glue.
2. Kune marudzi akawanda ehydroxypropyl methylcellulose (HPMC), uye ndeupi musiyano mukushandiswa kwawo?
--Mhinduro: HPMC inogona kukamurwa kuita yekukurumidza mhando uye inopisa-inonyungudika mhando. Instant-type products zvinopararira nokukurumidza mumvura inotonhora uye inonyangarika mumvura. Panguva ino, mvura haina viscosity, nokuti HPMC inongopararira mumvura uye haina kupera kwechokwadi. Mushure memaminitsi maviri, viscosity yemvura yakawedzera zvishoma nezvishoma, ichigadzira yakajeka viscous colloid. Zvigadzirwa zvinopisa zvinopisa, paunosangana nemvura inotonhora, zvinogona kukurumidza kuparadzirwa mumvura inopisa, uye zvinopera mumvura inopisa. Kana tembiricha yadzikira kusvika kune imwe tembiricha (chigadzirwa chekambani yedu i65 degrees Celsius), viscosity inoonekwa zvishoma nezvishoma kusvika yaita inoonekera viscous colloid. Iyo inopisa-yakanyunguduka mhando inogona kungoshandiswa muputty poda uye dhaka. Mumvura glue uye pendi, clumping phenomenon ichaitika uye haigone kushandiswa. Rudzi rwepakarepo rune huwandu hwakakura hwemaapplication. Inogona kushandiswa mu putty poda uye dhaka, pamwe chete mumvura glue uye pendi, pasina contraindications.
3. Ndedzipi nzira dzekuparara kwehydroxypropyl methylcellulose (HPMC)?
——Mhinduro: Nzira yekunyungudutswa kwemvura inopisa: Sezvo HPMC isinganyungudzwi mumvura inopisa, HPMC inogona kuparadzirwa zvakafanana mumvura inopisa padanho rekutanga, uye yobva yanyungudika nekukurumidza kana yatonhora. Nzira mbiri dzakajairika dzinotsanangurwa sezvizvi:
1) Isa huwandu hunodiwa hwemvura inopisa mumudziyo uye kupisa kusvika ku70 ° C. Iyo hydroxypropyl methylcellulose yakawedzerwa zvishoma nezvishoma nekukurudzira kunonoka, pakutanga HPMC yakayangarara pamusoro pemvura, uye zvishoma nezvishoma yakagadzira slurry, iyo yakanyoroveswa nekukurudzira.
2), wedzera 1/3 kana 2/3 yehuwandu hunodiwa hwemvura mumudziyo, uye kupisa kusvika 70 ° C, maererano nenzira ye1), paradzira HPMC, gadzirira mvura inopisa slurry; wobva wawedzera huwandu hwakasara hwemvura inotonhora kumvura inopisa Mu slurry, musanganiswa wacho wakanyoroveswa mushure mekukurudzira.
Powder kusanganisa nzira: Sanganisa HPMC poda nehuwandu hukuru hwezvimwe zvinhu zvehupfu, nyatso sanganisa nemuvhenganisi, wobva wawedzera mvura kuti inyunguduke, ipapo HPMC inogona kunyungudutswa panguva ino pasina kuungana, nekuti pane chete HPMC diki mune yega yega. kakona kadiki. Upfu huchanyungudika pakarepo mukusangana nemvura. ——Iyi nzira inoshandiswa nevanogadzira putty poda nedhaka. [Hydroxypropyl methylcellulose (HPMC) inoshandiswa seyakakora uye inochengetedza mvura mu putty powder mortar. ]
4. Nzira yekutonga sei kunaka kwehydroxypropyl methylcellulose (HPMC) nyore uye intuitively?
——Mhinduro: (1) Huchena: Kunyangwe kuchena kusingakwanise kuona kana HPMC iri nyore kushandisa, uye kana inopenya ichiwedzerwa mukugadzira kwayo, ichakanganisa kunaka kwayo. Zvisinei, zvizhinji zvezvigadzirwa zvakanaka zvine kuchena kwakanaka. (2) Fineness: Kunaka kweHPMC kunowanzo 80 mesh uye 100 mesh, uye 120 mesh ishoma. Yakawanda yeHPMC inogadzirwa muHebei ndeye 80 mesh. Kunyanya kunaka, zviri nani. (3) Transmittance: Isa hydroxypropyl methylcellulose (HPMC) mumvura kuti iite yakajeka colloid, uye tarisa transmittance yayo. Iyo yakakwirira iyo transmittance, zviri nani, zvichiratidza kuti mune zvishoma zvisinganyunguriki mairi. Kupinda kweiyo vertical reactor kazhinji kwakanaka, uye horizontal reactor yakashata, asi hazvigone kutaurwa kuti kunaka kweiyo vertical reactor iri nani pane iyo yakachinjika reactor, uye pane zvakawanda zvinotaridza kunaka kwechigadzirwa. (4) Chaiyo giravhiti: iyo yakakura iyo chaiyo giravhiti, iyo inorema zvakanyanya nani. Iyo chaiyo giravhiti yakakura, kazhinji nekuti iyo hydroxypropyl yemukati yakakwira, uye iyo hydroxypropyl yemukati yakakwira, kuchengetwa kwemvura kuri nani.
5. Nhamba ye hydroxypropyl methylcellulose (HPMC) mu putty powder?
——Mhinduro: Huwandu hweHPMC hunoshandiswa mumashandisirwo anoshanda hunosiyana zvichienderana nemamiriro ekunze, tembiricha, yemunharaunda ash calcium quality, chimiro cheputty powder uye "mhando inodiwa nevatengi". Kazhinji kutaura, iri pakati pe4 kg ne5 kg. Semuenzaniso, yakawanda yeputty powder muBeijing ndeye 5 kg; yakawanda yeputty powder muGuizhou i5 kg muzhizha uye 4.5 kg muchando;
6. Chii chakakodzera viscosity yehydroxypropyl methylcellulose (HPMC)?
——Mhinduro: Putty powder inowanzoita 100,000 yuan, uye dhaka racho rinonyanya kudiwa, uye riri nyore kushandisa pa150,000 yuan. Uyezve, basa rakakosha reHPMC nderekuchengeta mvura, zvichiteverwa nekukora. Mune putty powder, chero bedzi kuchengetwa kwemvura kwakanaka uye viscosity yakaderera (70,000-80,000), zvinogonekawo. Ehe, iyo viscosity yakakwirira, uye hukama hwekuchengetedza mvura huri nani. Kana iyo viscosity inopfuura 100,000, mhedzisiro yeviscosity pakuchengetedza mvura haina zvakawanda.
7. Ndeapi makuru ehunyanzvi zviratidzo zvehydroxypropyl methylcellulose (HPMC)?
--Mhinduro: Hydroxypropyl yemukati uye viscosity, vazhinji vashandisi vane hanya nezve izvi zviviri zviratidzo. Iyo yakakwirira iyo hydroxypropyl yemukati, zviri nani kuchengetedza mvura. High viscosity, kuchengetedza mvura, zvishoma (pane mhedziso) zviri nani, uye high viscosity, kushandiswa zviri nani mumatope esimende.
8. Ndezvipi zvinhu zvakakosha zvehydroxypropyl methylcellulose (HPMC)?
—— A: Iyo huru mbishi ye hydroxypropyl methylcellulose (HPMC): yakanatswa donje, methyl chloride, propylene oxide, zvimwe zvigadzirwa zvinosanganisira flake alkali, asidhi, toluene, isopropanol, nezvimwe.
9. Ndeipi basa guru reHPMC mukushandiswa kweputty powder, uye pane makemikari here?
——Mhinduro: HPMC ine mabasa matatu ekukora, kuchengetedza mvura uye kuvaka muputty poda. Kukora: Cellulose inogona kukwizwa kuti imise, chengeta mhinduro yunifomu uye isingachinji, uye kuramba kudonha. Kuchengetwa kwemvura: Ita kuti putty powder iome zvishoma nezvishoma, uye ubatsire kuita kweash calcium pasi pekuita kwemvura. Kuvaka: Cellulose ine lubricating effect, iyo inogona kuita kuti putty powder ive nekushanda kwakanaka. HPMC haitore chikamu mune chero chemakemikari reaction uye inongotamba basa rekubatsira. Kuwedzera mvura kune putty powder uye kuiisa pamadziro ndeyemakemikari anoita. Pamusana pekugadzirwa kwezvinhu zvitsva, tora putty powder pamadziro kubva pamadziro, uikuya muupfu, uye uishandise zvakare. Hazvizoshandi, nokuti zvinhu zvitsva (calcium carbonate) zvakagadzirwa. ) kumusoro. Zvinhu zvikuru zvinoumba ash calcium powder ndezvi: musanganiswa weCa(OH)2, CaO uye shoma shoma yeCaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O Ash calcium mumvura nemhepo Pasi pechiito che CO2, calcium carbonate inogadzirwa, nepo HPMC inongochengeta mvura uye inobatsira kuita zviri nani kweash calcium, uye haibatanidzi mune chero maitiro pachayo.
10. HPMC isiri-ionic cellulose ether, saka chii chinonzi non-ionic?
- Mhinduro: Muchirevo che layman, asiri-ion zvinhu zvisingaite ionise mumvura. Ionization inoreva nzira iyo electrolyte inopatsanurwa kuita mahara-anofamba anochaji ions mune chaiyo solvent (semvura, doro). Semuenzaniso, sodium chloride (NaCl), munyu unodyiwa zuva rega rega, unonyungudika mumvura uye ionizes kuti ibudise zvakasununguka inofamba sodium ions (Na+) iyo inochajiswa zvakanaka uye chloride ions (Cl) inopomerwa zvakaipa. Kureva kuti, kana HPMC yakaiswa mumvura, haina kupatsanurwa kuita maion anochajiwa, asi iripo muchimiro chemamorekuru.
Nguva yekutumira: Oct-17-2022