Cellulose ether isiri-ionic semi-synthetic yakakwira molecular polymer, inonyungudika mumvura uye inonyungudika. Iine maitiro akasiyana mumaindasitiri akasiyana. Semuyenzaniso, mune makemikari ekuvaka zvinhu, ine zvinotevera composite mhedzisiro:
①Mushandi wekuchengetedza mvura
②Thickener
③Kukwirisa
④Kugadzira firimu
⑤ Binder
Mune polyvinyl chloride indasitiri, iri emulsifier uye dispersant; muindasitiri yemishonga, ibhinder uye inononoka uye inodzorwa kuburitsa framework material, etc. Nokuti cellulose ine zvakasiyana-siyana zvinokonzerwa nemagetsi, kushandiswa kwayo Munda wacho ndiwowo wakanyanyisa. Zvadaro, ini ndichatarisa kushandiswa uye kushanda kwe cellulose ether mune zvakasiyana-siyana zvekuvaka.
1. Mu latex pendi
Muindasitiri yependi ye latex, kusarudza hydroxyethyl cellulose, iyo yakajairika yeakaenzana viscosity ndeye 30000-50000cps, iyo inoenderana neiyo HBR250 yakatarwa, uye iyo referensi dosage inowanzoita 1.5 ‰ -2 ‰. Basa guru re hydroxyethyl mu latex pendi ndeyekukora, kudzivirira gelation ye pigment, kubatsira kupararira kwe pigment, kugadzikana kwe latex, uye kuwedzera viscosity yezvikamu, izvo zvinobatsira pakugadzirisa kushanda kwekuvaka: Hydroxyethyl cellulose iri nyore kushandisa. Inogona kunyungudutswa mumvura inotonhora nemvura inopisa, uye haina kukanganiswa neiyo pH kukosha. Inogona kushandiswa zvakachengeteka pakati pePI kukosha 2 uye 12. Nzira dzekushandisa dzinotevera:
I. Wedzera zvakananga mukugadzirwa
Nokuda kweiyi nzira, hydroxyethyl cellulose yakanonoka rudzi inofanira kusarudzwa, uye hydroxyethyl cellulose ine nguva yekuparara kwemaminetsi anopfuura makumi matatu inoshandiswa. Matanho acho ndeaya anotevera: ① Isa imwe mvura yakachena mumudziyo wakashongedzerwa neshear agitator ② Tanga kubvongodza uchienderera nekumhanya kwakaderera, uye panguva imwe chete zvishoma nezvishoma wowedzera boka rehydroxyethyl mumushonga zvakaenzana ③Ramba uchimutsa kusvika. zvinhu zvose zvegranular zvakanyoroveswa ④Wedzera zvimwe zvinowedzera uye zvakakosha zvinowedzera, nezvimwewo ⑤Sveta kusvikira mapoka ose e-hydroxyethyl apera zvachose, wobva wawedzera zvimwe zvikamu mufomu uye kugaya kusvikira chigadzirwa chapera.
Ⅱ. Akashongedzerwa nedoro raamai rekushandisa gare gare
Iyi nzira inogona kusarudza pakarepo mhando, uye ine anti-mildew effect cellulose. Kubatsira kweiyi nzira ndeyekuti ine yakanyanya kuchinjika uye inogona kuwedzerwa zvakananga kune latex pendi. Nzira yekugadzirira yakafanana nematanho ①-④.
Ⅲ. Gadzira porridge yekuzoshandisa gare gare
Sezvo organic zvinonyungudutsa zvisingabatsiri zvinonyungudutsa (zvisinganyunguriki) zvehydroxyethyl, zvinonyungudutsa izvi zvinogona kushandiswa kugadzira porridge. Izvo zvinowanzo shandiswa organic zvinonyungudutsa zvinwiwa zvinwiwa mulatex pendi maumbirwo, senge ethylene glycol, propylene glycol, uye firimu-forming agents (senge diethylene glycol butyl acetate). Iyo porridge hydroxyethyl cellulose inogona kuwedzerwa zvakananga kupende. Ramba uchikurudzira kusvikira yapera zvachose.
Chechipiri, mumadziro scraping putty
Parizvino, mumaguta mazhinji munyika yangu, inodzivirira mvura uye inodzivirira-inodzivirira nharaunda-inoshamwaridzika putty yakakosheswa nevanhu. Iyo inogadzirwa neacetal reaction yevinyl doro uye formaldehyde. Naizvozvo, chinhu ichi chinopedzwa zvishoma nezvishoma nevanhu, uye cellulose ether series zvigadzirwa zvinoshandiswa kutsiva ichi chinyorwa. Kureva kuti, pakuvandudzwa kwezvakatipoteredza zvekuvaka zvivakwa, cellulose parizvino ndiyo chete zvinhu.
Mumvura inodzivirira putty, yakakamurwa kuva marudzi maviri: yakaoma poda putty uye putty paste. Pakati pemhando mbiri idzi dzeputty, methyl cellulose uye hydroxypropyl methyl inofanira kusarudzwa. Iyo viscosity yakatarwa kazhinji iri pakati pe40000-75000cps. Basa guru re cellulose kuchengetedza mvura, kusungirirwa uye mafuta.
Sezvo mafomula emaputty evagadziri vakasiyana akasiyana, mamwe ari grey calcium, light calcium, white simenti, nezvimwewo, uye mamwe ari gypsum powder, grey calcium, light calcium, nezvimwewo, saka zvinotsanangurwa, viscosity uye kupinda kwe cellulose mu maitiro maviri akasiyana zvakare. Mari yakawedzerwa inenge 2 ‰-3 ‰.
Nguva yekutumira: Feb-16-2023