1. Chii chinangwa chikuru chehydroxypropyl methyl cellulose (HPMC)?
HPMC inoshandiswa zvakanyanya mukuvaka, machira, ekugadzira resin, ceramics, mushonga, chikafu, machira, kurima, zvizorwa, fodya uye mamwe maindasitiri. HPMC inogona kukamurwa kuita giredhi rekuvaka, chikafu giredhi uye yekurapa giredhi zvinoenderana nechinangwa chayo. Parizvino, zvigadzirwa zvemumba zvakawanda ndezve giredhi rekuvaka. Mugiredhi rekuvaka, putty poda inoshandiswa muhombe, inenge 90% inoshandiswa kune putty poda, uye imwe yasara inoshandiswa simende dhaka uye glue.
2. Kune akati wandei marudzi ehydroxypropyl methyl cellulose (HPMC). Ndeupi musiyano pakati pekushandiswa kwavo?
HPMC inogona kukamurwa kuva pakarepo mhando uye inopisa-kunyunguduka mhando. Izvo zvigadzirwa zvemhando yepamusoro zvinokurumidza kuparadzirwa mumvura inotonhora uye inonyangarika mumvura. Panguva ino, mvura haina viscosity, nokuti HPMC inongopararira mumvura pasina kuparara kwechokwadi. Anenge maminetsi maviri, viscosity yemvura yakawedzera zvishoma nezvishoma, ichigadzira sparent viscous colloid. Iyo inopisa-yakanyunguduka chigadzirwa, kana ikasangana nemvura inotonhora, inogona kupararira nekukurumidza mumvura inopisa uye inonyangarika mumvura inopisa. Kana tembiricha yadonha kusvika kune imwe tembiricha, viscosity inooneka zvishoma nezvishoma kusvika yakajeka viscous colloid yaumbwa. Kupisa-kunyungudika mhando inogona kungoshandiswa muputty poda uye dhaka. Mumvura glue uye pendi, clumping inoitika uye haigone kushandiswa. Rudzi rwepakarepo rune huwandu hwakakura hwemaapplication. Inogona kushandiswa muputty poda uye dhaka, pamwe chete mumvura glue uye pendi. Iko hakuna contraindication.
3. Ndedzipi nzira dzekuparara dzehydroxypropyl methylcellulose HPMC?
Mvura inopisa yekumisa nzira: Sezvo HPMC isinganyungudika mumvura inopisa, HPMC inogona kuparadzirwa zvakafanana mumvura inopisa panguva yekutanga, uye nekukurumidza kunyungudika panguva yekutonhora. Nzira mbiri dzakajairika dzinotsanangurwa sezvizvi:
1). Isa 1/3 kana 2/3 yehuwandu hunodiwa hwemvura mumudziyo wopisa kusvika 70°C. kuparadzira HPMC kugadzirira mvura inopisa slurry; wobva wawedzera huwandu hwakasara hwemvura inotonhora kumvura inopisa Mu slurry, tonhodza musanganiswa mushure mokukurudzira.
Powder kusanganisa nzira: sanganisa HPMC poda nehuwandu hwakawanda hwezvimwe zvinhu zvehupfu, nyatso sanganisa ne blender, wobva wawedzera mvura kuti inyunguduke, ipapo HPMC inogona kunyungudutswa panguva ino pasina kudhumhana uye kusanganisa, nekuti kona yega yega diki, pane zvishoma zvishoma. yeHPMC Hupfu huchanyungudika pakarepo kana hwasangana nemvura. -Putty poda uye vanogadzira dhaka vanoshandisa nzira iyi. [Hydroxypropyl methyl cellulose (HPMC) inoshandiswa sechinhu chakakora uye chinochengeta mvura muputty poda dhaka.
Isa huwandu hunodiwa hwemvura inopisa mumudziyo uye kupisa kusvika ku70 ° C. Zvishoma nezvishoma wedzera hydroxypropyl methylcellulose nekukasira kunonoka, tanga HPMC ichiyangarara pamusoro pemvura, uye ipapo zvishoma nezvishoma gadzira slurry, uye kutonhorera slurry nekukurudzira.
Nguva yekutumira: Nov-16-2021