Cellulose etheripolymer yemhando yepamusoro isingasanganisike semi-synthetic, inonyungudika mumvura uye inonyungudika. Ine mhedzisiro dzakasiyana mumaindasitiri akasiyana. Semuenzaniso, muzvinhu zvekuvaka zvemakemikari, ine mhedzisiro inotevera:
① Chinhu chinochengetedza mvura, ②Chinokora, ③Chinhu chinoenzana, ④Chinhu chinoumba firimu,
⑤Bhainda
Muindasitiri yepolyvinyl chloride, imulsifier uye dispersant; muindasitiri yemishonga, isimbi uye inoburitsa zvinhu zvishoma nezvishoma uye zvinodzorwa, nezvimwewo. Nekuti cellulose ine mhando dzakasiyana dzemigumisiro, mashandisirwo ayo ndiwo akanyanya kuwanda. Tevere, ndichatarisa pakushandiswa uye kushanda kwe cellulose ether muzvinhu zvakasiyana-siyana zvekuvaka.
Ipendi ye latex
Muindasitiri yependi yelatex, kusarudza hydroxyethyl cellulose, kutsanangurwa kwakajairika kwe viscosity yakaenzana i30000-50000cps, iyo inoenderana netsanangudzo yeHBR250, uye chiyero chereferensi chinowanzova 1.5‰-2‰. Basa guru rehydroxyethyl mupendi yelatex nderekukora, kudzivirira gelation yepigment, kubatsira kupararira kwepigment, kugadzikana kwelatex, uye kuwedzera viscosity yezvikamu, izvo zvinobatsira pakushanda kwekuenzanisa kwekuvaka: Hydroxyethyl cellulose iri nyore kushandisa. Inogona kunyungudutswa mumvura inotonhora kana mumvura inopisa, uye haikanganisike ne pH value. Inogona kushandiswa zvakachengeteka pakati pePI value 2 ne12. Nzira dzekushandisa ndedzinotevera:
1. Wedzera zvakananga mukugadzirwa
Nzira iyi, hydroxyethyl cellulose delayed type inofanira kusarudzwa, uye hydroxyethyl cellulose ine nguva yekunyungudika kweanopfuura maminetsi makumi matatu inoshandiswa. Matanho acho ndeaya anotevera: ① Isa huwandu hwakati hwemvura yakachena mumudziyo wakashongedzwa nehigh-shear agitator ② Tanga kukurunga nguva dzose nekumhanya kwakaderera, uye panguva imwe chete wedzera zvishoma nezvishoma boka rehydroxyethyl mumushonga zvakaenzana ③Ramba uchikurunga kusvika zvese zvinhu zvanyorova ④Wedzera zvimwe zvinowedzera uye zvinhu zvekutanga, nezvimwewo. ⑤Kurunga kusvika mapoka ese ehydroxyethyl anyungudika zvachose, wobva wawedzera zvimwe zvikamu mufomura wozvikuya kusvika chigadzirwa chapera.
2. Yakashongedzerwa nedoro remumba kuti rizoshandiswa gare gare
Nzira iyi inogona kusarudza mhando inokurumidza, uye ine cellulose inodzivirira kukora. Chakanakira nzira iyi ndechekuti ine kuchinjika kukuru uye inogona kuwedzerwa zvakananga kupende yelatex. Nzira yekugadzirira yakafanana nematanho ①-④.
3. Bikai muporridge kuti muzoshandisa gare gare
Sezvo zvinonyungudutsa zve organic zvisiri zvinonyungudutsa zvakanaka (zvisinganyungudike) zve hydroxyethyl, zvinonyungudutsa izvi zvinogona kushandiswa kugadzira porridge. Zvinonyungudutsa zve organic zvinonyanya kushandiswa i organic liquids mu latex pendi formulations, dzakadai se ethylene glycol, propylene glycol, uye firimu-forming agents (senge diethylene glycol butyl acetate). Porridge hydroxyethyl cellulose inogona kuwedzerwa zvakananga mupendi. Ramba uchikurunga kusvika yanyungudika zvachose.
In putty
Parizvino, mumaguta mazhinji munyika yangu, putty isingapindi mvura uye isingapindi scrub yave ichikosheswa nevanhu. Inogadzirwa ne acetal reaction yevinyl alcohol uye formaldehyde. Saka, chinhu ichi chinobviswa zvishoma nezvishoma nevanhu, uye zvigadzirwa zve cellulose ether zvinoshandiswa kutsiva chinhu ichi. Kureva kuti, pakugadzira zvinhu zvekuvaka zvisingapindi zvakatipoteredza, cellulose ndiyo chete chinhu chiripo parizvino.
Muputty isingapindi mvura, yakakamurwa kuita mhando mbiri: putty yeupfu hwakaoma neputty paste. Pakati pemhando mbiri idzi dzeputty, methyl cellulose nehydroxypropyl methyl zvinofanira kusarudzwa. Hunhu hwe viscosity hunowanzova pakati pe40000-75000cps. Mabasa makuru e cellulose kuchengetedza mvura, kubatana uye kunyorovesa.
Sezvo maformula eputty evagadziri vakasiyana-siyana akasiyana, mamwe igrey calcium, light calcium, white cement, nezvimwewo, uye mamwe igypsum powder, grey calcium, light calcium, nezvimwewo, saka marongero, viscosity uye infiltration huwandu hwe cellulose inosarudzwa nemafomula maviri akasiyanawo. Huwandu hunowedzerwa hunenge 2‰-3‰.
Nguva yekutumira: Kubvumbi-28-2024