Nhasi ticha tarisa pane zvekuwedzera chaizvo mhando dzehana.
Mhando dzevamwe vanowanzoshandiswa manhamba inonyanya kuvezwa, cellulose, acrylic, uye polyurethane.
Inorganic
Midziyo yemamiriro ekunze inonyanya kuve yakadzvanywa, etc., inowanzowedzerwa kune iyo slurry yekukuya, nekuti zvakaoma kuzvidzingira zvakazara nekuda kweiyo nguva yekupenda.
Kune zvakare chikamu chidiki icho chichava chakaparadzaniswa uye chakagadzirirwa kuita gel yekushandisa.
Ivo vanogona kuwedzerwa kupenda nekukwevera kuti vaite huwandu hwenguva yekutanga. Kune zvakare zvimwe zviri nyore kuparadzira uye zvinogona kuitwa kuve gel nekumhanyisa-kumhanya zvichimhanya. Munguva yekugadzirira maitiro, kushandiswa kwemvura inodziya kunogona kusimudzira maitiro aya.
Cellulose
Iyo inowanzoitwa yakashandiswa cellulosic chigadzirwa chiriHydroxytHyl Cellulose (Hec). Kuyerera kusiri kuyerera uye kusakwana, kusakwana kwemvura, anti-mold uye zvimwe zvinhu, hazviwanzo kushandiswa mumaindasitiri.
Kana ikashandiswa, inogona kuwedzerwa zvakananga kana kunyungudutswa mumvura kumberi.
Usati wawedzera, kutarisa kunofanirwa kubhadharwa kuti ugadzirise iyo pH yehurongwa hweAlkaline mamiriro, ayo anokodzera kukurumidza kukura.
Acrylic
Acrylic manhamba ane zvimwe zvekushandisa mumaindasitiri ekupenda. Izvo zvinonyanya kushandiswa mumatombo epamba akadai seyakajairika uye yakakwirira pigment-to-base ratio, senge zvivakwa zvesimbi uye zvivakwa zvekudzivirira.
Mune epamusoro (kunyanya kujekesa topcoat), maviri-chikamu, kubheka densish govish, yakakwirira-gloss pendi uye mamwe marongero, ine zvimwe zvikanganiso uye hazvigone kuve zvakanaka.
Nheyo inoshamisa yeAcrylic Itsika ndeye: Iyo Carboxyl Boka pane yePolymer Chain inoshandurwa kuva Ionized Carbollate pasi peAlkaline mamiriro, uye maitiro akakora anowanikwa kuburikidza nekudzora kwemagetsi.
Naizvozvo, iyo pH yehurongwa inofanira kuchinjirwa kuAlkaline isati yashandiswa, uye iyo PH inofanirwawo kuchengetedzwa pa> 7 panguva yekuchengetedza inotevera.
Inogona kuwedzerwa zvakananga kana kudyiswa nemvura.
Inogona kuve isinganyungudika yekushandiswa mune mamwe masisitimu ayo anoda kuve wakakwirira viscossity kugadzikana. Namely: Chekutanga Dilute iyo acrylic thickener nemvura, uye wozowedzera iyo pH adjuster uku uchimutsa. Panguva ino, mhinduro inoverengeka zviri pachena, kubva kumakwenzi chena kusvika kune pachena paste, uye inogona kusiiwa kuti umire kuzoshandisa gare gare.
Uchishandisa nzira iyi zvibayiro zvekuita zvakanaka, asi zvinogona kuwedzera zvakakwana iyo thickkener muchikamu chekutanga, icho chinokodzera kugadzikana kweiyo viscosity mushure mekunge pendi yaitwa.
Mukuumbwa uye maitiro ekugadzira yeH1260 mvura-yakavakirwa imwe-chikamu sirivheri Poda pendi, iyo thickener inoshandiswa nenzira iyi.
Polyurethane
Polyurethane Thickeners anoshandiswa zvakanyanya mumaindasitiri ekutora nemari yakanaka uye akakodzera kushandiswa mune dzakasiyana siyana masisitimu akasiyana.
Mukushandisa, hapana chinodiwa pane iyo pH yehurongwa, inogona kuwedzerwa zvakananga kana mushure mekutevera dhigi, kungave nemvura kana solvent. Dzimwe nhaurwa dzine hurombo hydrophilikuti uye harigone kuderedzwa nemvura, asi inogona kungoiswa pamwe chete nemarara.
Emulsion System
Emulsion Systems (inosanganisira acrylic emulsions uye hydroxypruppropyl emulsions) haina mongororo uye iri nyore kupindirana. Zvakanaka kuti uvuwedzere mushure mekudhura. Kana kuderera, maererano nekubudirira kwekubudirira kweiyo thickener, kudzikisira imwe chiyero.
Kana iyo yakakora yekubudirira yakaderera, iyo dhiidhi ratio inofanira kunge yakaderera kana kuti haina kuderedzwa; Kana iyo yekubudirira kugona kwakakwira, iyo dififiti chiyero chinofanira kunge chakakwira.
Semuenzaniso, SV-1540 Mvura-yakavakirwa polyurethane Scassative Songs Sckener ine yakanyanya kuremerwa kugona. Kana ichishandiswa mune emulsion system, inowanzoiswa kagumi kagumi kana makumi maviri (10% kana 5%) yekushandisa.
Hydroxyprupropyl kupararira
HydroxyPropyl kupararira resin pachayo ine imwe huwandu hwe solvent, uye hazvisi nyore kutambisa panguva yekugadzira pendi. Naizvozvo, pururethane inowanzowedzerwa mune yakaderera diliution ratio kana yakawedzerwa pasina dilution mune iyi mhando yehurongwa.
Izvo zvakakosha kucherechedza izvo zvinokonzerwa nekumanikidza kwehuwandu hukuru hwemari solices mune urwu mumhando yehurongwa haisi pachena, uye yakakwana iyo thickener inoda kusarudzwa nenzira yakatarwa. Pano, ndinoda kukurudzira sv-1140 mvura-based polyurethane kushamwaridzana
Kutumira Nguva: Kubvumbi-25-2024