REPSPERSIBISTE Polymer PoWorder (RDP) chinhu chakakosha chinoshandiswa zvakanyanya mukuvaka, kuungana, zvinonamatira uye mamwe minda. Iyo inoumbwa nekupukunyuka kuomesa emulsion uye ine kuparadzaniswa kwakanaka uye kuderedza.
1. Kugadzirira kwezvinhu
Iyo huru yemidziyo yekugadzira yekugadzira redispertible latex poda inosanganisira:
Polymer emulsion: senge polyvinyl doro (PVA), ethylene-vinyl acetate (Eva), styrene-acrylate (sa), nezvimwe.
Dziviriro COLLID: Yakadai sePolyvinyl Doro, Methyl Cellerpore, HydroxyPropyl methyl Cellelose, etc., yaishandiswa kudzivirira zvimedu kubva pakuomesa panguva yekuomesa.
Defoamer: Inoshandiswa kubvisa foam muitiro yekugadzira, yakadai seiyo silicone mafuta nePolyether defoamer.
Stabilizer: sodium dodecylbenene sulfonate (sdbs), sodium polyacrylate, etc., inoshandiswa kudzikamisa system ye emulsion.
2. Kugadzirira kweMulsion
Sarudza yakakodzera monomers zvichienderana neiyo formula yePolymerization maitiro kugadzirira polymer emulsion ine zvivakwa zvinodiwa. Munguva yekugadzirira kwemelsion, matanho anokosha anotevera anofanira kucherechedzwa:
Kusarudzwa kweMonomer uye Ratio: Sarudza yakakodzera Monomer, yakadai seEtrayne, vinyl acetate chigadzirwa, uye sarudza huwandu hwechigadzirwa chekupedzisira kuti zviite kuti uite zvekuita zve emulsion.
Emulsion Polymerization: Kazhinji yemahara emahara polymersization inoshandiswa kuridza mhere kune vanoshamisa mumblasion. Iyo polymerization reaction inoda kuitwa kuti iitwe pasi pemamiriro ezvinhu akasarudzika, kusanganisira kupisa, kumhanyisa kumhanya, kutanga kuwedzerwa chiyero, nezvimwe.
Kuwedzera kweiyo colloid uye stabilizer: Wedzera huwandu hwakakodzera hwekodhi yekudzivirira uye stabilizer kune emulsion kuti udzivise emulsion kubva mukuwedzera panguva yekupedza kuomesa.
3. Kufunga nezve emulsion
Asati apedza kuoma, emulsion inoda kunyepedzera, kunyanya kusanganisira matanho anotevera:
Filtration: Bvisa kusvibiswa mu emulsion kuburikidza nefaira kana centrifese kuti ive nechokwadi chekuchena kwemelsion.
Kusimbisa: Simbisa emulsion kune yakakodzera yakasimba zvirimo kuburikidza nekuvapura kana membrane filt yekuvandudza kuoma.
4. Spira kuoma
Spray kuoma ndiyo nzira yepakati yekuita kuti adzorere redx latex poda. Matanho chaiwo ari seanotevera:
Kusarudzwa kwespray kuomesa shongwe: Sarudza yakakodzera kupfira michina yekuomesa maererano nezvivakwa uye kubudiswa kwe emulsion. Zvinowanzoshandiswa zvishandiso zvinosanganisira centrifugal spray yekuomesa shongwe uye kumanikidza kupfira shongwe yekuomesa.
Kuisa kwekuomesa paramita Kazhinji, iyo inlet mweya tembiricha inodzorwa pa150-200
Spray kuomesa maitiro: Iyo yekufungidzira emulsion yakagadzirirwa madonhwe akanaka kuburikidza nesprayer, uye nekukurumidza kuonana nemweya unopisa mumhepo yekuomesa, uye mvura yakacherwa kuti iite fures yakaoma poda.
Powder Kuunganidzwa: Iyo yakaomeswa latex poda inounganidzwa nedutu inoparadzaniswa kana bhegi faira. Iyo yakaunganidzwa Latex poda inoda kuti isungirwe uye yakakura zvidimbu zvinobviswa nekuongororwa kuti ive nechokwadi chekufanana kwechigadzirwa.
5. Post-kugadzirisa uye kurongedza
Iyo yakaomeswa inodzokorora latex poda inoda kuve yakakodzera post-yakagadziriswa kuti ive nechokwadi chekuita kwayo kuita kwayo uye kuchengetedza kwakachengeteka. Kutumira-kugadzirisa kunyanya kunosanganisira:
Kurapa kweAnti-CaKing: Wedzera Anti-Caking Agents (yakadai se talcum poda, silicon dioxide) kune iyo latex poda kubva pakuwedzera kubva pakuchengetera panguva yekuchengetera uye kufambisa.
Packaging: Zvinoenderana nezvinodiwa nevatengi, iyo Latex poda yakarongedzwa mune kunyorova-chiratidzo uye guruva-zviratidzo mabhegi kana mbiya. Humidity inoda kuve yakanyatso kudzorwa panguva yekuisa pakurongedza kudzivirira iyo hupfu kubva pakubata unyoro.
6. Hunhu kutonga
Munguva yekugadzira maitiro, yakasimba mhando kutonga inofanirwa kuve nechokwadi chekuti zviratidzo zvechiratidzo zvechiratidzo chevanoregezesa yeLavex sangana nezvinodiwa. Zvinhu zvakajairika zvinhu zvinosanganisira:
Particle saizi kugoverwa: Iyo yehukuru hwekugoverwa kweiyo poda yakaonekwa ne laser chidimbu chihure kuti uve nechokwadi chechigadzirwa chechigadzirwa.
Adhisheni Simba: Bvunza iyo yekushambadzira simba reLatex poda pane akasiyana subastera kuti uone kuti inosimbisa maitiro ayo.
Kugadziriswazve: Sanganisa iyo Latex poda nemvura kuti itarise kana inogona kuparadzirwa uye kudzoreredzwa uye kudzoreredzwa kune emulsion State.
7. Chikumbiro uye Chengetedza
REPLESPILLELELE LATEX Hupfu hunoshandiswa zvakanyanya mukuvaka motsi, tile anomhara, kunze kwemadziro masisitimu uye mamwe minda. Pfungwa dzinotevera dzinoda kucherechedzwa kana uchishandisa:
Mamiriro ekuchengetedza: Latex poda inofanira kuchengetwa munzvimbo yakaoma uye inotonhorera kuti udzivise kupisa kwakanyanya uye humidity.
Kushandiswa RATIO: Zvinoenderana nezvakangoitika zvekushandisa zviitiko, Wedzera Latex Poda zvine chikonzero kuti uwane zvakanakisa kuita.
Nezvevamwe vanowedzera: REPSPERSICLELE LATEX poda inowanzoshandiswa pamwe nezvimwe zvinowedzera (senge cellulose ether, defoamer) kusimudzira mashandiro ezvinyorwa.
Dzokorora rondedzero yeLatex poda nekuita kwakanaka kunogona kugadzirwa zvinobudirira. Mukugadzirwa chaiko, zvinodikanwa kuti ugadzirise maererano nezvakananga kugadzirwa kwemamiriro ezvinhu uye zvinodiwa zvigadzirwa kuti uve nechokwadi chakagadzikana uye chakavimbika mhando yechigadzirwa chekupedzisira.
Kutumira Nguva: Kukadzi-17-2025