Cellulose yekuvaka chinhu chinoshandiswa zvakanyanya mukugadzira zvinhu zvekuvaka. Cellulose yekuvaka inonyanya kushandiswa mudhaka reupfu hwakaoma. Kuwedzera cellulose ether kwakaderera zvikuru, asi kunogona kuvandudza mashandiro edhaka rakanyorova uye kukanganisa kuvaka kwedhaka. Kushanda kunofanirwa kutariswa pakushandiswa. Saka ndeapi maitiro emuviri ecellulose ekuvaka, uye chii chinonzi maitiro ekuvaka ecellulose ekuvaka? Kana usingazive zvakawanda nezve maitiro uye maitiro ekuvaka ecellulose ekuvaka, ngatitarisei pamwe chete.
Ndezvipi zvinhu zvemuviri zve cellulose pakuvaka:
1. Chitarisiko: upfu huchena kana kuti hwakasiyana nechena.
2. Saizi yezvikamu; mwero wekupasa we100 mesh wakakura kupfuura 98.5%; mwero wekupasa we80 mesh wakakura kupfuura 100%.
3. Kupisa kwecarbonization: 280-300°C
4. Kuwanda kwechinhu kunoratidzika: 0.25-0.70/cm3 (kazhinji inenge 0.5g/cm3), simba remagetsi rakasiyana 1.26-1.31.
5. Tembiricha yekuchinja ruvara: 190-200°C
6. Kusimba kwemvura pamusoro: 2% mvura ine 42-56dyn/cm.
7. Inonyungudika mumvura uye mune zvimwe zvinonyungudutsa, zvakaita sehuwandu hwakakodzera hweethanol/mvura, propanol/mvura, trichloroethane, nezvimwewo. Mhinduro dzemvura dzinoshanda pamusoro. Kujeka kwakanyanya, kushanda kwakasimba, zvirevo zvakasiyana zvezvigadzirwa zvine tembiricha dzakasiyana dzegel, kuchinja kwekunyungudika nekunaka, kunyungudika kwakaderera, kunyungudika kukuru, zvirevo zvakasiyana zveHPMC zvine misiyano yakati wandei mukushanda, uye kunyungudika kweHPMC mumvura hakukanganisike ne pH value.
8. Nekudzikira kwehuwandu hwemethoxyl, gel point inowedzera, kunyungudika kwemvura kweHPMC kunoderera, uye kushanda kwepamusoro kunodererawo.
9. HPMC ine hunhu hwekugona kukora, kuramba munyu, upfu hwedota hushoma, kugadzikana kwePH, kuchengetedza mvura, kugadzikana kwemativi, hunhu hwakanaka hwekugadzira firimu, uye kusimba kwema enzyme akasiyana-siyana, kupararira uye kubatana.
Chii chinonzi nzira yekuvaka cellulose pakuvaka:
1. Zvinodiwa padanho repasi: Kana kunamira kwemadziro epasi kusingakwanise kuzadzisa zvinodiwa, nzvimbo yekunze yemadziro epasi inofanira kucheneswa zvakanaka, uye chinhu chinobatanidza chinofanira kuiswa kuti chiwedzere kugona kwekuchengetedza mvura yemadziro uye nokudaro kuwedzera simba rekubatanidza pakati pemadziro nebhodhi repolystyrene.
2. Tambo yekudzora mutambo: vhura mitsetse yekudzora yakatambanuka uye yakatwasuka yemasuo nemahwindo ekunze, majoini ekuwedzera, majoini ekushongedza, nezvimwewo pamadziro.
3. Tungamira mutsetse wekutarisa: Tungamira waya dzesimbi dzekutarisa dzakamira pamakona makuru (makona ekunze, makona emukati) emadziro ekunze echivako nedzimwe nzvimbo dzinodiwa, uye tungira mitsetse yakatwasuka panzvimbo dzakakodzera pauriri hwega hwega kudzora kumira uye kusatana kwebhodhi repolystyrene.
4. Kugadzirwa kwesimbi inonamira yepolymer: Chinhu ichi isimbi inonamira yepolymer yakagadzirwa, iyo inofanira kushandiswa zvichienderana nezvinodiwa zvechigadzirwa ichi, pasina kuwedzera zvimwe zvinhu, zvakaita sesimende, jecha nemamwe mapolymer.
5. Namatira jira regridhi rakapidigurwa: Nzvimbo dzese dzakavhurika dziri padivi pebhodhi repolystyrene rakanamirwa (dzakadai semajoini ekuwedzera, majoini ekuvaka, majoini ekupisa uye mamwe majoini ari kumativi ese, magonhi nemahwindo) dzinofanira kucheneswa nejira regridhi.
6. Bhodhi repolystyrene rinonamira: Cherechedza kuti kucheka kwacho kwakamira panzvimbo yebhodhi. Kutsauka kwehukuru kunofanirwa kusangana nezvinodiwa nemitemo, uye majoini ebhodhi repolystyrene haafanirwe kusiiwa pamakona mana emusuwo nepahwindo.
7. Kugadziriswa kwezvibatiso: huwandu hwezvibatiso hunopfuura 2 pa square meter (hwakawedzerwa kusvika pa4 pazvivakwa zvirefu).
8. Gadzirira dhaka rekupurasita: Gadzirira dhaka rekupurasita zvichienderana nehuwandu hwakapihwa nemugadziri, kuitira kuti uwane kuyerwa kwakarurama, kusanganisa kwechipiri nekanika, uye kusanganisa.
Pakati pemhando dze cellulose dzinoshandiswa pakuvaka, cellulose ether inoshandiswa ne hydroxypropyl methylcellulose mu dry powder mortar inonyanya kuve hydroxypropyl methylcellulose ether. Hydroxypropyl methylcellulose inonyanya kuita basa rekuchengetedza mvura, kukora uye kuvandudza mashandiro ekuvaka mu dry powder mortar.
Nguva yekutumira: Chivabvu-10-2023