Nezvedambudziko rekuti putty powder iri nyore kugadzira upfu, kana kuti simba rayo harina kukwana. Sezvatinoziva tese, cellulose ether inoda kuwedzerwa kugadzira putty powder, HPMC inoshandiswa pamadziro eputty, uye vashandisi vazhinji havawedzeri latex powder inonyungudika zvakare. Vanhu vazhinji havawedzeri polymer powder kuitira kuchengetedza mari, asi ichi ndicho chikonzero nei putty yakajairika iri nyore kugadzira upfu uye inosangana nematambudziko emhando yezvigadzirwa!
Putty yakajairika (yakadai se821 putty) inonyanya kugadzirwa nehupfu chena, glue diki yestarch uye CMC (hydroxymethyl cellulose), uye mimwe inogadzirwa nemethyl cellulose neShuangfei powder. Putty iyi haina kunamira uye haipindi mvura.
Cellulose inogona kunwisa mvura uye kuzvimba mushure mekunyungudutswa mumvura. Zvigadzirwa zvinobva kuvagadziri vakasiyana zvine mwero wekunwisa mvura wakasiyana. Cellulose inoita basa rekuchengetedza mvura muputty. Putty yakaomeswa ine simba rakati wandei kwenguva pfupi, uye inozobvisa hupfu zvishoma nezvishoma mushure menguva yakareba. Izvi zvine chekuita zvakanyanya nechimiro chemamorekuru ecellulose pachayo. Putty yakadaro yakasununguka, ine mvura yakawanda, iri nyore kupwanya, haina simba, uye haina kusimba. Kana topcoat ikaiswa pamusoro, PVC yakaderera iri nyore kuputika uye furo; PVC yakakwirira iri nyore kutetepa nekutsemuka; nekuda kwekunwisa mvura yakawanda, inokanganisa kuumbwa kwefirimu uye mhedzisiro yekuvakwa kwetopcoat.
Kana uchida kugadzirisa matambudziko eputty ari pamusoro apa, unogona kugadzirisa fomura yeputty, kuwedzera imwe upfu hwelatex hunonyungudika zvakakodzera kuti uwedzere simba reputty, uye kusarudza hydroxypropyl methylcellulose HPMC yemhando yepamusoro ine hunhu hwakavimbiswa.
Mukugadzirwa kweputty, kana huwandu hwehupfu hwelatex hunonyungudika huchiwedzerwa husina kukwana, kana kana hupfu husina kunaka hwelatex hweputty hukashandiswa, huchakanganisa sei hupfu hweputty?
Hupfu hwelatex hunogona kunyungudika husina kukwana, chiratidzo chakajeka ndechekuti putty layer yakasununguka, pamusoro payo pakapwanywa, huwandu hwependi inoshandiswa pakuputira pamusoro hwakakura, hunhu hwekuenzana hwakaderera, pamusoro payo pakapwanywa mushure mekuumbwa kwefirimu, uye zvakaoma kugadzira pendi yakakora. Madziro akadaro anowanzo pwanyika, kusviba, kupwanyika, uye kutsemuka kwefirimu rependi. Kana ukasarudza putty powder isina putty, zviri pachena kuti magasi anokuvadza akadai seformaldehyde anogadzirwa pamadziro achakonzera kukuvadza vamwe.
Nguva yekutumira: Chikumi-15-2023