Munzvimbo chaiyo yemusika, mhando dzakasiyana dzeupfu hwelatex dzinogona kutsanangurwa sedzinoyevedza. Nekuda kweizvozvo, kana mushandisi asina mainjiniya ake ehunyanzvi kana michina yekuyedza, anogona kunyengedzwa chete nevatengesi vazhinji vasina hunhu vari mumusika. Parizvino, kune dzimwe nzira dzinonzi dzekuongorora dziri kutenderera paInternet, dzakadai se: kuona kusvibiswa kwemushonga wakanyungudutswa uye mamiriro ekugadzira firimu. Nzira idzi dzinongowanikwa chete kubva pamusoro, uye hadzigone kupa rutsigiro rwesainzi rwekusarudza kwekupedzisira kwemushandisi kana chigadzirwa chacho chakakodzera iye. Saka, muchinyorwa chino, tichazivisa nenzira yakarongwa dzimwe pfungwa dzekutanga dzeupfu hwerabha pasina zvinhu zvekutanga zvekugadzirwa kwezvinhu zvakabikwa, hunhu, uye chinangwa chekushandisa upfu hwerabha, kuitira kuti vashandi vagone kuzvisarudzira vega kuti chii chakanaka uye chii chakanaka.
Kutanga, pfungwa huru yekunzwisisa kuti upfu hwe polymer hunopararira hunogadzirwa sei. (Upfu hwe latex hunopararira hupfu hwe polymer hune hunhu hunopararira hunogadziriswa kubva ku synthetic resin emulsion nekuwedzera zvimwe zvinhu uye kuomeswa ne spray. Kana mvura ikashandiswa senzira yekupararira, inogona kugadzira emulsion uye ine upfu hwe polymer hunopararira. Hupfu hwe latex hunowanzova upfu huchena, asi hushoma hune mamwe mavara.) Hupfu hwe latex hunopararira hunofanira kusanganisira: polymer resin, zvinowedzera, protective colloid, anti-caking agent. 1. Polymer resin iri muchikamu chepakati che latex powder particles, uye ndiyo zvakare chikamu chikuru che redispersible latex powder, senge polyvinyl acetate/vinyl resin, nezvimwewo. Hunhu hwe polyvinyl acetate emulsion inogadzirwa nevagadziri vakasiyana uye maitiro akasiyana zvinokanganisa zvakananga hunhu hwe rabha powder inogadzirwa. Kuti ive nechokwadi chekugadzikana kwemhando yechigadzirwa, mafekitori makuru akajairika anowanzo shandisa brand ye polyvinyl acetate kugadzira redispersible polymer powder. Pano tinogona kutora muenzaniso unoshanda. Muna 2015, imwe mhando inozivikanwa yerubha yemumba yakatsiva polyvinyl acetate emulsion yakachipa kuti igadzire upfu hwepolymer hunonyungudika zvakare nekuda kwezvikonzero zvekutarisira. Nekuda kweizvozvo, kushanduka kukuru kwemhando kwakakonzerwa. kwakakonzera kukuvara kusingagadzirisike. Kunyangwe vamwe vatengesi vasina hungwaru pano vanoshandisa latex chena nezvimwe zvakadaro pachinzvimbo chekupukuta guruva.
2. Zvinowedzerwa (zvemukati) zvinoshanda pamwe chete neresin kugadzirisa resin, semuenzaniso, plasticizer inoderedza tembiricha inogadzira firimu re resin (kazhinji vinyl acetate/ethylene copolymer resins haidi kuwedzera mapurasitiki), kwete ese latex Powder ane zvinowedzerwa. Iyo redispersible latex powder yevagadziri vadiki vazhinji ine chete firimu rekuita tembiricha uye haigone kunzi girazi transition temperature, iyo zvakare iri parameter yakakosha yemhando yerabha powder pachayo.
3. Colloid inodzivirira Rutivi rwezvinhu zvinonyungudika zvakaputirwa pamusoro pezvidimbu zveupfu hwelatex zvinonyungudika, uye muviri unodzivirira weupfu hwakawanda hwelatex hunonyungudika ipolyvinyl alcohol. Polyvinyl alcohol pano ndeyekutora chikamu mukuita kwekuomesa nepfapfaidzo pamwe chete, pane kungosanganisa chete. Heino imwe dambudziko rinowanzoitika mumusika. Maworkshop mazhinji madiki anoti ari kugadzira upfu hwerabha anongoita maitiro ekusanganisa muviri. , chigadzirwa ichi hachigone kunzi upfu hwepolymer hunonyungudika.
4. Zvimwe zvinowedzerwa (zvekunze) Zvinhu zvinowedzerwa kuti zviwedzere kushanda kweupfu hwelatex hunonyungudika, zvakaita sekuwedzera superplasticizers kune mamwe mapoda elatex anonyungudika. Kufanana nezvimwe zvinowedzerwa mukati, hazvisi zvese zvinoshandiswa zvepolymer powder inonyungudika. Upfu hwelatex hwese hune ichi chinowedzera.
5. Mushonga wekudzivirira kuvharika kwemvura. Mushonga wezvicherwa wakanaka, unoshandiswa zvikuru kudzivirira upfu hwelatex kuti husaungane panguva yekuchengetera nekutakura uye kuita kuti upfu hwelatex hufambe zvakanaka (hunoraswa kubva mumabhegi epepa kana mumatangi). Mushonga uyu ndiwo unonyanya kukanganisa mutengo chaiwo wekugadzira uye kushanda kweupfu hwepolymer hunopararira. Upfu hwakawanda hwerabha hwakaderera pamusika hunowedzera chiyero chefiller kuderedza mitengo. Zvichitaurwa zviri nyore, ndicho chiratidzo chehuwandu hwedota chinowanzo taurwa nezvacho. Zvicherwa zvakasiyana zvinowedzerwa nevagadziri vakasiyana zvinokanganisawo mhedzisiro yekusanganisa upfu hwerabha nesimende. Nekuti kubatana kwezvinamathero zvisingasanganisike nezvinhu kunowanikwa kuburikidza nepfungwa yekuisa muchina.
Nguva yekutumira: Kubvumbi-26-2024