Misoro yeHydroxypropyl Methyl Cellulose HPMC

1. Chii chinonyanya kushandiswa chehydroxypropyl methylcellulose (HPMC)?

——Mhinduro: HPMC inoshandiswa zvakanyanya mukuvaka, machira, marezeni ekugadzira, ceramics, mushonga, chikafu, machira, kurima, zvizorwa, fodya uye mamwe maindasitiri. HPMC inogona kukamurwa kuita: giredhi rekuvaka, giredhi rekudya uye giredhi remishonga zvinoenderana nekushandiswa. Parizvino, zvizhinji zvezvigadzirwa zvepamba ndezvekuvaka giredhi. Mugiredhi rekuvaka, putty poda inoshandiswa muhombe, inenge 90% inoshandiswa kune putty poda, uye imwe yasara inoshandiswa simende dhaka uye glue.

2. Kune marudzi akawanda ehydroxypropyl methylcellulose HPMC. Ndeupi musiyano mukushandiswa kwavo?

——Mhinduro: Hydroxypropyl methylcellulose HPMC inogona kukamurwa kuva pakarepo mhando uye inopisa-kuparara mhando. Instant mhando zvigadzirwa zvinopararira nekukurumidza mumvura inotonhora uye inonyangarika mumvura. Kunyungudika chaiko. Inenge maminetsi maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira yakajeka viscous colloid. Zvigadzirwa zvinopisa zvinonyunguduka, kana zvasangana nemvura inotonhora, zvinogona kupararira nekukurumidza mumvura inopisa uye kunyangarika mumvura inopisa. Kana tembiricha yadzikira kune imwe tembiricha, viscosity inozoonekwa zvishoma nezvishoma kusvika yaita yakajeka viscous colloid. Iyo inopisa-yakanyunguduka mhando inogona kungoshandiswa muputty poda uye dhaka. Mumvura glue uye pendi, pachave nemapoka chiitiko uye hachigone kushandiswa. Rudzi rwepakarepo rune huwandu hwakakura hwemaapplication. Inogona kushandiswa mu putty poda uye dhaka, pamwe chete nemvura glue uye pendi, pasina contraindications.

3. Ndedzipi nzira dzekuparara dzehydroxypropyl methylcellulose HPMC?

——Mhinduro: Kupisa mvura inopisa nzira: Sezvo HPMC isinganyungudika mumvura inopisa, HPMC inogona kuparadzirwa zvakaenzana mumvura inopisa padanho rekutanga, uye yobva yanyungudika nekukurumidza kana yatonhodzwa. Nzira mbiri dzakajairika dzinotsanangura

sezvinotevera:

1), wedzera 1/3 kana 2/3 yehuwandu hunodiwa hwemvura mumudziyo, uye kupisa kusvika makumi manomwe.°C, paradzira HPMC maererano nenzira ye1), uye gadzirira slurry yemvura inopisa; wobva wawedzera huwandu hwakasara hwemvura inotonhora kumvura inopisa slurry, musanganiswa wacho wakatonhodzwa mushure mekukurudzira.

Powder kusanganisa nzira: sanganisa HPMC hupfu nehuwandu hukuru hwezvimwe zvinhu zvehupfu, nyatso sanganisa nemusanganisi, wobva wawedzera mvura kunyungudika, ipapo HPMC inogona kunyungudutswa panguva ino pasina kusanganiswa, nekuti pane chete HPMC diki mune zvese zvidiki. kona Powder, ichanyungudika pakarepo kana yasangana nemvura.——Putty poda uye vagadziri vedhaka vari kushandisa nzira iyi. [Hydroxypropyl methylcellulose (HPMC) inoshandiswa sechinhu chakakora uye chekuchengetedza mvura mu putty powder mortar.

2) Isa huwandu hunodiwa hwemvura inopisa mumudziyo uye kupisa kusvika makumi manomwe°C. Iyo hydroxypropyl methylcellulose yakawedzerwa zvishoma nezvishoma pasi pekugadzirisa zvishoma nezvishoma, pakutanga HPMC yakatenderera pamusoro pemvura, uye zvishoma nezvishoma yakagadzira slurry, iyo yakanyoroveswa pasi pekukurudzira.

4. Nzira yekutonga sei kunaka kwehydroxypropyl methylcellulose (HPMC) nyore uye intuitively?

——Mhinduro: (1) Chaiyo giravhiti: Iyo yakakura iyo chaiyo giravhiti, iyo inorema zvakanyanya nani. Reshiyo yakakura, kazhinji nekuti

(2) Kuchena: Kunyangwe kuchena kusingakwanise kuona kana HPMC iri nyore kushandisa, uye kana maajenti ekuchena akawedzerwa panguva yekugadzira, zvinokanganisa kunaka kwayo. Zvisinei, zvizhinji zvezvigadzirwa zvakanaka zvine kuchena kwakanaka.

(3) Fineness: Kunaka kweHPMC kunowanzo kuve ne80 mesh uye 100 mesh, uye 120 mesh ishoma. Yakawanda HPMC inogadzirwa muHebei ndeye 80 mesh. Kunyanya kunaka, zviri nani kazhinji.

(4) Light transmittance: isa hydroxypropyl methylcellulose (HPMC) mumvura kuti iite transparent colloid, uye tarisa mwenje wayo. Iyo yakakwirira iyo mwenje transmittance, zviri nani, zvichiratidza kuti kune mashoma insolubles mairi. . Kupinda kwereactor yakatwasuka kazhinji kwakanaka, uye kuya kwereactor yakachinjika kwakaipa, asi hazvireve kuti kunaka kwereactor yakatwasuka kuri nani pane iyo yereactor yakachinjika, uye pane zvakawanda zvinotaridza kunaka kwechigadzirwa. . Izvo zviri muboka re hydroxypropyl mukati maro zvakakwirira, uye zvinyorwa zveboka re hydroxypropyl zvakakwirira, uye kuchengetwa kwemvura kuri nani.

5. Ndeapi makuru ehunyanzvi zviratidzo zvehydroxypropyl methylcellulose (HPMC)?

——Mhinduro: Hydroxypropyl content uye viscosity, vazhinji vashandisi vane hanya nezviratidzo zviviri izvi. Avo vane yakakwira hydroxypropyl zvemukati kazhinji vane zvirinani kuchengetedza mvura. High viscosity, kuchengetwa kwemvura, zvishoma (pane

6. Chii chakakodzera viscosity yehydroxypropyl methylcellulose (HPMC)?

——Mhinduro: Putty powder inowanzoita 100,000 yuan, uye zvinodiwa zvedhaka zvakakwirira, uye 150,000 yuan inodiwa kuti ishandiswe nyore. Uyezve, iyo inonyanya kukosha basa reHPMC ndeyekuchengetedza mvura, inoteverwa nekukora. Mune putty powder, chero bedzi kuchengetwa kwemvura kwakanaka uye viscosity yakaderera (70,000-80,000), zvinogonekawo. Zvechokwadi, iyo yakakwirira viscosity, zviri nani kuchengetedza mvura. Kana iyo viscosity inopfuura 100,000, iyo viscosity inokanganisa kuchengetwa kwemvura. Hazvina zvakawanda zvakare. Absolutely) zvakare zviri nani, uye viscosity yakakwira, uye zviri nani kushandisa mune simende dhaka.

7. Ndezvipi zvinhu zvakakosha zvehydroxypropyl methylcellulose (HPMC)?

——Mhinduro: Iyo huru yezvigadzirwa zve hydroxypropyl methylcellulose (HPMC): yakanatswa donje, methyl chloride, propylene oxide, uye zvimwe zvinhu, caustic soda, acid, toluene, isopropanol, nezvimwe.

8. Ndeipi basa guru rekushandiswa kweHPMC mu putty powder, uye inoitika nemakemikari?

——Mhinduro: Mune putty poda, HPMC inobata mabasa matatu ekukora, kuchengetedza mvura uye kuvaka. Kukora: Cellulose inogona kukobvu kumisa uye kuchengeta yunifomu yemhinduro kumusoro nekudzika, uye kuramba kudonha. Kuchengetwa kwemvura: ita kuti putty poda iome zvishoma nezvishoma, uye batsira madota e calcium kuti aite pasi pekuita kwemvura. Kuvaka: Cellulose ine lubricating effect, iyo inogona kuita kuti putty powder ive nekuvakwa kwakanaka. HPMC haitore chikamu mune chero chemakemikari maitiro, asi inongotamba yebetsero. Kuwedzera mvura kune putty powder uye kuiisa pamadziro ndeyekuita kwemakemikari, nokuti zvinhu zvitsva zvinoumbwa. Kana iwe ukabvisa putty powder pamadziro kubva pamadziro, uikuya muupfu, uye uishandise zvakare, haigoni kushanda nokuti zvinhu zvitsva (calcium carbonate) zvakagadzirwa. ) zvakare. Izvo zvikamu zvikuru zveash calcium powder ndezvi: musanganiswa weCa (OH) 2, CaO uye zvishoma zveCaCO3, CaO + H2O = Ca (OH) 2-Ca(OH)2+CO2=CaCO3↓+ H2O Ash calcium iri mumvura nemhepo Pasi pekuita kwe CO2, calcium carbonate inogadzirwa, nepo HPMC inongochengeta mvura, ichibatsira kuita zviri nani kweash calcium, uye haibatanidzi mune chero maitiro pachayo.

9. HPMC isiri-ionic cellulose ether, saka chii chisiri-ionic?

——Mhinduro: Muchirevo che layman, asiri-ion zvinhu zvisingaite ionise mumvura. Ionization inoreva nzira iyo electrolyte inopatsanurwa kuita ayoni anochaji anogona kufamba akasununguka mune chaiyo solvent (semvura, doro). Semuenzaniso, sodium chloride (NaCl), munyu watinodya zuva rega rega, unonyunguduka mumvura uye ionizes kugadzira zvakasununguka sodium ion ions (Na+) iyo inochajiswa zvakanaka uye chloride ions (Cl) ine mhosva yakaipa. Kureva kuti, kana HPMC yaiswa mumvura, haizoparadzanise mumaoni anochajwa, asi aripo muchimiro chemamorekuru.

10. Pane hukama huripo pakati pekudonha kweputty powder uye HPMC?

——Mhinduro: Kurasikirwa kwehupfu hweputty powder kunonyanya kuenderana nehutano hweash calcium, uye haina zvishoma neHPMC. Iyo yakaderera calcium ye grey calcium uye chiyero chisina kukodzera cheCaO uye Ca (OH) 2 mu grey calcium inokonzera kurasikirwa kweupfu. Kana iine chimwe chinhu chekuita neHPMC, zvino kana HPMC ine urombo hwekuchengetedza mvura, inokonzerawo kurasikirwa kweupfu.

11. Chii chinonzi tembiricha yegel yehydroxypropyl methylcellulose ine chekuita nazvo?

——Mhinduro: Iyo tembiricha yegel yeHPMC ine hukama neiyo methoxy yemukati. Iyo yakaderera methoxy content↓, iyo yakakwirira tembiricha yegel.

12. Ungasarudza sei zvakakodzerahydroxypropyl methylcellulose (HPMC)nezvinangwa zvakasiyana?

——Mhinduro: Kushandiswa kweputty powder: zvinodiwa zvishoma zvishoma, uye viscosity ndeye 100,000, iyo yakakwana. Chinhu chakakosha kuchengetedza mvura zvakanaka. Kushandiswa kwedhaka: zvinodiwa zvepamusoro, high viscosity, 150,000 zviri nani. Kushandiswa kweglue: zvigadzirwa zvekukurumidza zvine viscosity yakakwirira zvinodiwa.

13. Ndeupi musiyano uripo pakati pemhando yemvura inotonhorera uye inopisa-inonyungudika yehydroxypropyl methylcellulose mukugadzira?

——Mhinduro: Iyo inotonhorera-yemvura inotonhora yemhando yeHPMC inobatwa pamusoro-inogadziriswa ne glyoxal, uye inopararira nekukurumidza mumvura inotonhora, asi haina kunyatso kunyungudika. Inonyungudika chete kana viscosity ichiwedzera. Mhando dzinopisa dzakanyungudika hadzina kubatwa pamusoro ne glyoxal. Kana huwandu hweglyoxal hwakakura, kupararira kuchakurumidza, asi viscosity ichawedzera zvishoma nezvishoma, uye kana mari yacho iri duku, zvinopesana zvichave zvechokwadi.

14. Chii chinonzi kunhuwa kwehydroxypropyl methylcellulose (HPMC)?

——Mhinduro: Iyo HPMC inogadzirwa nenzira yekunyungudutsa inoshandisa toluene uye isopropanol sezvinonyungudutsa. Kana kushambidzika kusina kunaka, pachava nekunhuhwirira kwakasara.

15. Nderipi rimwe zita rehydroxypropyl methylcellulose?

——Mhinduro: Hydroxypropyl Methyl Cellulose, Chirungu: Hydroxypropyl Methyl Cellulose Kupfupisa: HPMC kana MHPC Alias: Hypromellose; Cellulose hydroxypropyl methyl ether; Hypromellose, Cellulose, 2-hydroxypropyl methyl Cellulose ether. Cellulose hydroxypropyl methyl ether Hyprolose.

16. Chii chinofanira kutariswa mukushandiswa chaiko kwehukama pakati pe viscosity uye tembiricha yeHPMC?

——Mhinduro: The viscosity yeHPMC inopindirana nekupisa, kureva kuti, viscosity inowedzera sezvo tembiricha inoderera. Iyo viscosity yechigadzirwa chatinowanzo taura nezvayo inoreva bvunzo mhedzisiro yayo 2% aqueous solution patembiricha ye20 degrees Celsius.

Mumashandisirwo anoshanda, zvinofanirwa kucherechedzwa kuti munzvimbo dzine tembiricha yakakura misiyano pakati pezhizha nechando, zvinokurudzirwa kushandisa yakaderera viscosity munguva yechando, iyo inobatsira pakuvaka. Kana zvisina kudaro, kana kutonhora kwakaderera, viscosity ye cellulose inowedzera, uye kunzwa kwemaoko kuchave kunorema pakukwesha. Medium viscosity: 75000-100000 Inonyanya kushandiswa kune putty. Chikonzero: kuchengetedza mvura zvakanaka. High viscosity: 150000-200000 Inonyanya kushandiswa polystyrene particle thermal insulation mortar glue powder uye vitrified microbead thermal insulation mortar. Chikonzero: high viscosity, dhaka haisi nyore kudonha, kurembera, uye kugadzirisa kuvaka.

17. Kushandiswa kweHPMC mune putty powder, chii chikonzero chezviputi muputty powder?

——Mhinduro: Mune putty poda, HPMC inobata mabasa matatu ekukora, kuchengetedza mvura uye kuvaka. Usatora chikamu mune chero maitiro. Zvikonzero zvemabhuru: 1. Isa mvura yakawandisa. 2. Musoro wepasi hauna kuoma, ingotsvaira imwe nhanho pamusoro, uye iri nyore kupupa.