1. Zita rechigadzirwa:
01. Zita remakemikari: hydroxypropyl methylcellulose
02. Zita rakazara muchiRungu: Hydroxypropyl Methyl Cellulose
03. Chidimbu cheChirungu: HPMC
2. Hunhu hwemuviri nemakemikari:
01. Chitarisiko: upfu huchena kana kuti hwakasiyana nechena.
02. Saizi yezvikamu; mwero wekupasa we100 mesh wakakura kupfuura 98.5%; mwero wekupasa we80 mesh wakakura kupfuura 100%.
03. Kupisa kwecarbonization: 280～300℃
04. Kuwanda kwechinhu kunoratidzika: 0.25～0.70/cm3 (kazhinji inenge 0.5g/cm3), simba remuchadenga rakasiyana 1.26-1.31.
05. Tembiricha yekuchinja ruvara: 190～200℃
06. Kusimba kwemvura: 2% mvura ine 42 ～56dyn/cm.
07. Inonyungudika mumvura nezvimwe zvinonyungudutsa, zvakaita se ethanol/mvura, propanol/mvura, trichloroethane, nezvimwewo muhuwandu hwakakodzera.
Mhinduro dzemvura dzinoshanda pamusoro. Kujeka kwakanyanya, kushanda kwakasimba, tembiricha yegel yezvigadzirwa zvine hunyanzvi hwakasiyana
Kusiyana, kunyungudika kunochinja nekunyungudika, kunyungudika kushoma, kunyungudika kukuru, mashandiro emhando dzakasiyana dzehydroxypropyl methylcellulose (HPMC) ane misiyano yakati siyanei, kunyungudika kwehydroxypropyl methylcellulose (HPMC) mumvura hakukanganisike PH value effect.
08. Nekudzikira kwehuwandu hwemethoxyl, gel point inowedzera, kunyungudika kwemvura kunoderera, uye kushanda kwepamusoro kwehydroxypropyl methylcellulose (HPMC) kunodererawo.
09. Hydroxypropyl methylcellulose (HPMC) inewo kugona kukora, kuramba munyu, upfu hwedota hushoma, kugadzikana kwePH, kuchengetedza mvura, kugadzikana kwemativi, kugona kugadzira firimu kwakanaka, uye kuramba ma enzyme akasiyana-siyana, hunhu hwekupararira hwakadai sebonde uye kunamira.
Chechitatu, hunhu hwehydroxypropyl methylcellulose (HPMC):
Chigadzirwa ichi chinobatanidza zvinhu zvakawanda zvemuviri uye zvemakemikari kuti chive chigadzirwa chakasiyana chine mashandisirwo akawanda, uye zvinhu zvakasiyana-siyana ndeizvi:
(1) Kuchengetwa kwemvura: Inogona kuchengeta mvura panzvimbo dzine maburi akadai semapuranga esimende emadziro nezvidhinha.
(2) Kugadzirwa kwefirimu: Inogona kugadzira firimu rinoonekera, rakaoma uye rakapfava rine simba rekudzivirira mafuta.
(3) Kunyungudika kwechinhu chinobva muzvinhu zvipenyu: Chigadzirwa ichi chinonyungudika mune zvimwe zvinhu zvinonyungudika zvechisikigo, zvakaita se ethanol/mvura, propanol/mvura, dichloroethane, uye sisitimu yekunyungudika inoumbwa nezvinhu zviviri zvinonyungudika zvechisikigo.
(4) Kupisa: Kana mvura yemushonga yapiswa, inoumba gel, uye gel yakagadzirwa ichava mhinduro zvakare mushure mekutonhora.
(5) Basa repamusoro: Ipa basa repamusoro mumushonga kuti uwane emulsification inodiwa uye colloid inodzivirira, pamwe nekugadzikana kwechikamu.
(6) Kumiswa: Kunogona kudzivirira kunaya kwezvimedu zvakasimba, nokudaro kuchidzivisa kuumbwa kwetsvina.
(7) Colloid inodzivirira: inogona kudzivirira madonhwe nezvidimbu kuti zvisaungane kana kuonda.
(8) Kunamira: Inoshandiswa sechinamira chemavara, zvigadzirwa zvefodya, uye zvigadzirwa zvemapepa, ine mashandiro akanaka kwazvo.
(9) Kunyungudika kwemvura: Chigadzirwa ichi chinogona kunyungudika mumvura muhuwandu hwakasiyana, uye huwandu hwacho hwepamusoro hunongogumira pakunyungudika.
(10) Kusashanda zvakanaka kwechinhu chisiri cheionic: Chigadzirwa ichi i-non-ionic cellulose ether, iyo isingasangani nesimbi munyu kana mamwe maion kuti igadzire precipitates isinganyungudike.
(11) Kugadzikana kweasidhi-base: yakakodzera kushandiswa mukati mePH3.0-11.0.
(12) Hazvina kunaka uye hazvina hwema, hazvikanganisike nemetabolism; zvichishandiswa sezvinowedzera zvekudya uye mishonga, hazvizogayiwi muchikafu uye hazvipe macalorie.
4. Nzira yekunyungudutsa Hydroxypropyl methylcellulose (HPMC):
Kana zvigadzirwa zve hydroxypropyl methylcellulose (HPMC) zvikaiswa mumvura zvakananga, zvinogwamba zvobva zvanyunguduka, asi kunyunguduka uku kunononoka uye kwakaoma. Pane nzira nhatu dzinokurudzirwa dzekunyunguduka dziri pazasi, uye vashandisi vanogona kusarudza nzira iri nyore zvichienderana nemashandisirwo adzo:
1. Nzira yemvura inopisa: Sezvo hydroxypropyl methylcellulose (HPMC) isinganyungudike mumvura inopisa, danho rekutanga rehydroxypropyl methylcellulose (HPMC) rinogona kupararira zvakaenzana mumvura inopisa, uye kana yatonhodzwa, nzira nhatu dzakajairika dzinotsanangurwa seizvi:
1). Isa huwandu hunodiwa hwemvura inopisa mumudziyo woipisa kusvika pa70°C. Wedzera zvishoma nezvishoma hydroxypropyl methylcellulose (HPMC) uchikurunga zvishoma nezvishoma, hydroxypropyl methylcellulose (HPMC) inotanga kuyangarara pamusoro pemvura, uye zvishoma nezvishoma inogadzira slurry, wotonhodza slurry uchikurunga.
2). Pisa 1/3 kana 2/3 (huwandu hunodiwa) hwemvura mumudziyo woipisa kusvika 70°C. Zvichienderana nenzira ye1), paradzira hydroxypropyl methylcellulose (HPMC) kuti ugadzire slurry yemvura inopisa. Wobva wawedzera huwandu hwasara hwemvura inotonhora kana mvura yechando mumudziyo, wobva wawedzera slurry yemvura inopisa yataurwa pamusoro apa yehydroxypropyl methylcellulose (HPMC) mumvura inotonhora, wobva wasanganisa, wobva watonhodza musanganiswa wacho.
3). Wedzera 1/3 kana 2/3 yehuwandu hwemvura hunodiwa mumudziyo woipisa kusvika 70°C. Zvichienderana nenzira ye1), paradzira hydroxypropyl methylcellulose (HPMC) kuti ugadzire slurry yemvura inopisa; Huwandu hwemvura inotonhora kana yechando yasara inowedzerwa slurry yemvura inopisa uye musanganiswa wacho unotonhodzwa mushure mekukurunga.
2. Nzira yekusanganisa upfu: zvidimbu zveupfu zvehydroxypropyl methylcellulose (HPMC) nezvimwe zvinhu zvine upfu zvakaenzana kana kupfuura zvinosanganiswa zvizere nekusanganisa kwakaoma, zvobva zvanyungudutswa mumvura, ipapo hydroxypropyl methylcellulose Base cellulose (HPMC) inogona kunyungudutswa pasina agglomeration. 3. Nzira yekunyorovesa organic solvent: pre-disperse kana wet hydroxypropyl methylcellulose (HPMC) ine organic solvents yakaita se ethanol, ethylene glycol kana oiri, yobva yanyungudutswa mumvura. Panguva ino, hydroxypropyl methylcellulose (HPMC) inogonawo kunyungudutswa zvakanaka.
5. Mashandisirwo makuru ehydroxypropyl methylcellulose (HPMC):
Hydroxypropyl methylcellulose (HPMC) inogona kushandiswa sechinhu chinosimbisa, chinoparadzira, chinosanganisa simbi uye chinoita kuti firimu riwedzere. Zvigadzirwa zvayo zvemhando yepamusoro zvinogona kushandiswa mumakemikari ezuva nezuva, zvemagetsi, maresini ekugadzira, kuvaka uye machira.
1. Kugadziriswa kwepomeriyumu:
Mukugadzirwa kwemasinisi ekugadzira akadai sepolyvinyl chloride (PVC), polyvinylidene chloride nedzimwe copolymers, suspension polymerization ndiyo inonyanya kushandiswa uye inofanirwa kudzikamisa suspension yemamonomer ehydrophobic mumvura. Sepolymer inonyungudika mumvura, hydroxypropyl methylcellulose (HPMC) zvigadzirwa zvine basa rakanaka pamusoro uye zvinoshanda secolloidal protective agent, izvo zvinogona kudzivirira kuungana kwepolymer particles. Uyezve, kunyangwe hydroxypropylmethylcellulose (HPMC) iri polymer inonyungudika mumvura, inonyungudikawo zvishoma mumamonomer ehydrophobic uye inowedzera porosity yemamonomers anogadzirwa polymeric particles, kuitira kuti ikwanise Kupa mapolymers kugona kwakanaka kwekubvisa mamonomer akasara uye kuwedzera kunyudzwa kweplasticizers.
2. Mukugadzira zvinhu zvekuvaka, hydroxypropyl methylcellulose (HPMC) inogona kushandiswa pa:
1). Chinhu chinonamira uye chinobata madziro chetepi inonamira yakagadzirwa negypsum;
2). Kubatanidzwa kwezvidhinha, mataira nenheyo zvakagadzirwa nesimende;
3). Stucco yakagadzirwa neplasterboard;
4). Purasi yekuvaka yakagadzirwa nesimende;
5). Muchimiro chemushonga wekubvisa pendi nependi.
Nguva yekutumira: Chivabvu-24-2023