1. Chii chinonyanya kushandiswa cellulose?
HPMCinoshandiswa zvakanyanya mukuvaka, machira, masimbi ekugadzira, ceramics, mishonga, chikafu, machira, kurima, zvizorwa, fodya uye mamwe maindasitiri. HPMC inogona kukamurwa kuita giredhi reindasitiri, giredhi rekudya uye giredhi remishonga zvinoenderana nekushandiswa.
2. Kune marudzi akawanda ecellulose, uye ndezvipi zvakasiyana mukushandiswa kwawo?
HPMC inogona kukamurwa kuita instant type (brand name suffix "S") uye hot-melt type. Instant-type products zvinopararira nokukurumidza mumvura inotonhora uye inonyangarika mumvura. Panguva ino, mvura haina viscosity nekuti HPMC inongoparadzirwa mumvura pasina kuparara chaiko. Nezve (kukurudzira) kwemaminetsi maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichiita chena chena viscous colloid. Zvigadzirwa zvinopisa zvinopisa, paunosangana nemvura inotonhora, zvinogona kupararira nokukurumidza mumvura inopisa uye kupera mumvura inopisa. Kana tembiricha inodonha kune imwe tembiricha (maererano nejiro tembiricha yechigadzirwa), iyo viscosity inozoonekwa zvishoma nezvishoma kusvika yaita yakajeka viscous colloid.
3. Ndedzipi nzira dzekunyungudutsa cellulose?
1). Mienzaniso yose inogona kuwedzerwa kune zvinyorwa nekusanganiswa kwakaoma;
2). Kana ichida kuwedzerwa zvakananga kune yakajairika tembiricha aqueous mhinduro, zviri nani kushandisa inotonhora yekuparadzira mhando. Zvinowanzotora 1-30 maminetsi kukora mushure mekuwedzera (kumutsa uye kumutsa)
3). Mienzaniso yakajairika inotanga kubvongodzwa uye inoparadzirwa nemvura inopisa, yozonyungudutswa mumvura inotonhora mushure mekukurudzira uye kutonhora;
4). Kana agglomeration ikaitika panguva yekuparara, imhaka yekuti kubvongodza hakuna kukwana kana iyo yakajairika modhi inowedzerwa zvakananga kumvura inotonhora. Panguva ino, inofanira kumutswa nokukurumidza. the
5). Kana mabhuru akagadzirwa panguva yekunyungudutswa, anogona kusiiwa amire kwemaawa 2-12 (nguva yakatarwa inotarwa nekuenderana kwemhinduro) kana kubviswa nekutsvaira, kudzvanya, nezvimwewo, uye huwandu hwakakodzera hwekusvibisa mumiriri hunogonawo kuwedzerwa. the
4. Nzira yekutonga sei kunaka kwe cellulose zviri nyore uye intuitively?
1) Kuchena, kunyangwe kuchena kusingakwanise kuona kana HPMC iri nyore kushandisa, uye kana maajenti ekuchena akawedzerwa mukugadzira, zvinokanganisa kunaka kwayo, asi mazhinji ezvigadzirwa zvakanaka zvine kuchena kwakanaka.
2) Kunaka: Kunaka kweHPMCkazhinji ine 80 mesh uye 100 mesh, 120 mesh ishoma, iyo yakatsetseka iyo yakatsetseka zviri nani.
3) Chiedza chekufambisa: Mushure mekunge HPMC yaiswa mumvura kuti iite yakajeka colloid, tarisa kune yayo mwenje transmittance. Iyo yakakura kufambiswa kwemwenje, zviri nani, zvichiratidza kuti mune zvishoma zvisinganyunguriki mairi, uye kutapurirana kwema vertical reactors kazhinji kwakanaka. , The horizontal reactor yakashata, asi hazvireve kuti kunaka kweiyo vertical reactor iri nani pane iyo yehorizontal reactor, uye pane zvakawanda zvinotaridza kunaka kwechigadzirwa.
4) Chaiyo giravhiti: Iyo yakakura iyo chaiyo giravhiti, iyo inorema zvakanyanya nani. Iyo yakakwirira iyo chaiyo giravhiti, iyo yakakwirira iyo hydroxypropyl zviri muchigadzirwa. Iyo yakakwirira iyo hydroxypropyl yemukati, zviri nani kuchengetedza mvura.
5. Chii chinonzi cellulose muputty powder?
Huwandu hweHPMC hunoshandiswa mumashandisirwo anoshanda hunoenderana nemamiriro ekunze, tembiricha, kunaka kwekoni ash calcium, chimiro cheputty powder uye mhando inodiwa nevatengi. Kune misiyano munzvimbo dzakasiyana, kazhinji kutaura, iri pakati pe4-5 kg.
6. Chii chakakodzera viscosity ye cellulose?
Kazhinji, 100,000 putty poda inokwana, uye chinodiwa mudhaka chakakwira, uye chinoda 150,000 kuti ive nyore kushandisa. Uyezve, iyo inonyanya kukosha basa reHPMC ndeyekuchengetedza mvura, inoteverwa nekukora. Mune putty powder, chero bedzi kuchengetwa kwemvura kwakanaka uye viscosity yakaderera (7-8), inogonawo. Zvechokwadi, iyo yakakwirira viscosity, zviri nani kuchengetedza mvura. Kana iyo viscosity inopfuura 100,000, iyo viscosity haina mhedzisiro pakuchengetedza mvura. hombe.
7. Ndeapi makuru ehunyanzvi zviratidzo zve cellulose?
Hydroxypropyl content
Methyl yemukati
viscosity
Ash
Kurasikirwa pakuomeswa
8. Ndezvipi zvinhu zvakakosha zve cellulose?
Iyo huru yezvigadzirwa zveHPMC: yakanatswa donje, methyl chloride, propylene oxide, liquid caustic soda, nezvimwe.
9. Ndeipi basa guru rekushandiswa kwe cellulose mu putty powder? Pane here kuita kwemakemikari?
Pakati pe putty powder, inotamba mabasa matatu ekukora, kuchengetedza mvura uye kuvaka. Kukora, cellulose inogona kukora kuti imire, chengetedza yunifomu yemushonga 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.
10. Cellulose isiri-ionic cellulose ether, saka chii chinonzi non-ionic?
Muchirevo che layman, inert zvinhu hazvibatanidzi mukuita kwemakemikari.
CMC (carboxymethyl cellulose) inonzi cationic cellulose, saka inoshanduka kuita muga webhinzi kana yasangana nemadota e calcium.
11 Ndeipi tembiricha yegel ye cellulose ine hukama nei?
Iyo tembiricha yegel yeHPMC ine hukama neiyo methoxy yemukati, iyo yakadzikira methoxy yemukati, iyo yakakwirira tembiricha yegel.
12. Pane hukama huripo pakati pekurasikirwa kwehupfu hweputty powder uye cellulose?
Kune hukama! ! ! Ndiko kuti, kusachengetedzwa kwemvura kwakashata kweHPMC kunokonzera kurasikirwa kwehupfu (zviri mukati mezvinhu zvakadai sedota, heavy calcium, uye simenti, tembiricha yekuvaka, uye chimiro chemadziro zvese zvichakanganiswa).
13. Ndeupi musiyano uripo pakati pemvura inotonhora nekukurumidza uye inopisa soluble cellulose mukugadzira?
Iyo inotonhora yemvura inotonhora yemhando yeHPMC inorapwa pamusoro neglyoxal, 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. Sei cellulose ichinhuwa?
Iyo HPMC inogadzirwa nenzira yekunyungudutsa inoshandisa toluene uye isopropanol sezvinonyungudutsa. Kana kushambidzika kusina kunaka, pachava nekunhuhwirira kwakasara. (Neutralization kupora ndiyo nzira yakakosha yekunhuhwirira)
15. Ungasarudza sei cellulose yakakodzera kune zvinangwa zvakasiyana?
Putty poda: inoda kuchengetwa kwemvura yakakwira, kuvaka kwakanaka kuve nyore
Yakajairwa simende-yakavakirwa dhaka: inoda kuchengetwa kwemvura yakakwira, kupisa kwakanyanya, uye viscosity ipapo.
Kushandiswa kweglue yekuvaka: zvigadzirwa zvekukurumidza zvine viscosity yakakwirira. (yakakurudzirwa giredhi
Gypsum dhaka: kuchengetwa kwemvura yakakwirira, yepakati uye yakaderera viscosity, nekukurumidza viscosity kuwedzera.
16. Nderipi rimwe zita recellulose?
Inonzi HPMC kana MHPC alias hypromellose, cellulose hydroxypropyl methyl ether.
17. Kushandiswa kwe cellulose mu putty powder, chii chikonzero chezviputi muputty powder?
Mune putty poda, HPMC inoita mabasa matatu ekukora, kuchengetedza mvura uye kuvaka. Zvikonzero zvemabubbles ndezvi:
1. Mvura yakawandisa inowedzerwa.
2. Musoro wepasi hauna kuoma, ingotsvaira imwe nhanho pamusoro, uye iri nyore kupupa.
18. Ndeupi musiyano uripo pakati peselulosi neMC:
MC is methyl cellulose, iyo inogadzirwa ne cellulose ether nekurapa donje rakanatswa nealkali, uchishandisa methane chloride se etherification agent, uye ichiita zvakatevedzana maitiro. Kazhinji, dhigirii rekutsiva i1.6-2.0, uye kunyungudika kunosiyana nemadhigirii akasiyana ekutsiva. Yakasiyana, ndeye isiri-ionic cellulose ether.
(1) Kuchengetwa kwemvura kwemethylcellulose kunoenderana nehuwandu hwayo hwekuwedzera, viscosity, particle fineness uye dissolution rate. Kazhinji, kana huwandu hwekuwedzera hwakakura, hunyoro hudiki, uye viscosity yakakura, mwero wekuchengetedza mvura wakakwira. Pakati pavo, mari yekuwedzera ine simba guru pahuwandu hwekuchengetedza mvura yevanhu. Iyo viscosity haina kuenzana nehuwandu hwekuchengetedza mvura. Mwero wekunyunguduka unonyanya kuenderana nepamusoro pema cellulose particles. Dhigirii rekugadzirisa uye particle fineness. Pakati pepamusoro akati wandei cellulose ethers, mwero wekuchengetedza mvura wemethyl cellulose uye Jinshuiqiao cellulose wakakwira.
(2) Methylcellulose inonyungudika mumvura inotonhora, uye zvichange zvakaoma kunyungudika mumvura inopisa. Mhinduro yaro ine aqueous yakagadzikana muhuwandu hweph=3-12. Iine kuwirirana kwakanaka ne starch, nezvimwewo uye akawanda surfactants. Kana tembiricha Kana tembiricha gelation yasvika, gelation ichaitika.
(3) Shanduko mutembiricha ichakanganisa zvakanyanya mwero wekuchengetedza mvura yemethyl cellulose. Kazhinji, kukwira kwekushisa, kunowedzera kuwedzera kwehuwandu hwekuchengetedza mvura. Kana tembiricha yevhu ichipfuura madhigirii makumi mana, kuchengetwa kwemvura kwemethyl cellulose kuchaderedzwa zvakanyanya, izvo zvichakanganisa zvakanyanya kuvakwa kwedhaka.
(4)Methyl celluloseine simba rakakosha pakuvaka nekunamatira kwedhaka. Adhesion pano inoreva simba rekunamira rinonzwika pakati pemudziyo wekushandisa wemushandi nemadziro emadziro, ndiko kuti, kurwisa kweshear kwedhaka. Kunamatira kwakakwirira, kupikisa kweshear kwevhu kwakakura, uye simba rinodiwa nevashandi vari mukugadzirisa kushandiswa kwakakurawo, uye kushanda kwekuvaka kwedhaka kwakashata.
Nguva yekutumira: Kubvumbi-25-2024