Nguva pfupi yadarika, kwave nekubvunzwa kakawanda kubva kune vatengi maererano nehupfu hweputty, senge maitiro ekupwanya kana kusakwanisa kwayo kuwana simba.Zvinozivikanwa kuti kuwedzeracellulose etherzvakakosha kugadzira putty poda, uye vashandisi vazhinji havawedzeri inorasika latex poda.Vanhu vazhinji havawedzere poda yekunamira kuchengetedza mutengo, asi ichi ndicho zvakare kiyi yekuti nei yakajairwa putty ichiwanzoita pulverization uye chigadzirwa mhando nyaya!
Ordinary putty (senge 821 putty) inonyanya kugadzirwa nehupfu chena, starch glue, uye CMC (hydroxymethyl cellulose), uye kune zvakare akagadzirwa nemethyl cellulose uye kaviri nhunzi hupfu.Rudzi urwu rweputty haruna kunamatira uye haruna kudzivirira mvura.
Mushure mekupedza cellulose nemvura, inogona kutora mvura uye kuwedzera.Mwero wekutora mvura wezvigadzirwa kubva kune vakasiyana vagadziri wakasiyana, uye cellulose inotora basa rekuchengetedza mvura muputty.Mushure mekuomeswa, iyo putty inongova neimwe simba kwechinguva, asi nekufamba kwenguva, zvishoma nezvishoma inorasikirwa nehupfu, iyo yakabatana zvakanyanya neiyo molecular chimiro che cellulose pachayo.Rudzi urwu rweputty rwakasununguka, rune kunyura kwemvura yakawanda, rinowanzoita upfu, kushaya simba, uye kusimba.Kana topcoat yakaiswa pairi, yakaderera PVC inowanzoita blistering;Yakakwirira PVC inokanganisa kupera mvura mumuviri, shrinkage, uye kuputika;Nekuda kwehuwandu hwayo hwekunyura kwemvura, inokanganisa kuumbwa kwefirimu uye mhedzisiro yekuvaka yetopcoat.
Kuti uvandudze nyaya dziri pamusoro neputty, unogona kugadzirisa iyo putty formula uye wowedzera imwezve inodhindwa latex poda kuti uvandudze simba rekupedzisira reputty.Sarudza yemhando yepamusoro hydroxypropyl methyl celluloseHPMCne vimbiso yemhando.Hydroxypropyl methyl celluloseine chiyero chekuchengetedza mvura yemhando yepamusoro cellulose, iyo inogona kunyatso hydrate iyo putty raw material uye inovandudza kunaka kweputty.
Chii chichava chinokanganisa paputty powder kana huwandu hwehupfu hwehuputi hunowedzerwa panguva yekugadzira putty husina kukwana, kana kana pasi peputty chaiyo latex powder inoshandiswa?
Huwandu husina kukwana hweredispersible latex podayakawedzerwa kune putty ndiyo yakanyatso kuratidzwa ye loose putty layer, pamusoro pehupfu, yakakwira pendi kushandiswa paunenge uchiisa topcoat, kusaenzana kwakashata, hutsinye hwepamusoro mushure mekugadzirwa kwefirimu, uye kuomerwa mukugadzira firimu rependi.Madziro akadaro anowanzoita kusvuura, kuputika, kusvuura, uye kutsemuka kwefirimu repende.Kana yakaderera putty powder inosarudzwa, chiyero chekukuvadza kumiviri yevanhu inokonzerwa nemagasi anokuvadza akadai se formaldehyde anogadzirwa pamadziro ari pachena.
Kuti uchinje mamiriro ezvinhu aripo, zvinodikanwa kubvisa zvese zvakaderera putty pasina kusiya chero zvakasara, uye wozotenga inokodzera putty uye latex pendi!Kuti udzivise kurasikirwa kusingakoshi, vatengi vanofanirwa kuyedza kusarudza zvigadzirwa kubva kune makuru mabhureki ane chisimbiso chemhando kuitira kuti zvive nyore kusarudza putty.
longou Kambani inyanzvi mukugadzira uye kutengesa kwehuni fibers, starch ether, hydroxypropyl methyl cellulose, redispersible latex poda.
Nguva yekutumira: Sep-06-2023