Upfu hwepolymer hunosanganiswa ne redispersible (RDP) i copolymer yevinyl acetate ne ethylene inogadzirwa kuburikidza nekupfapfaidza. Chinhu chakakosha mumabasa akasiyana-siyana ekuvaka, zvichipa kunamira kuri nani, kuchinjika uye kugara kwenguva refu kuzvigadzirwa zvakagadzirwa nesimende. Kugadzirwa kweupfu hwepolymer hunosanganiswa ne redispersible kunosanganisira matanho akati wandei.
1. Sarudzo yezvinhu zvisina kugadzirwa:
Vinyl acetate-ethylene copolymer: Chinhu chikuru cheRDP i copolymer yevinyl acetate ne ethylene. Iyi copolymer yakasarudzwa nekuda kwehunhu hwayo hwakanaka hwekunamira uye kugona kwayo kuwedzera kuchinjika uye kusimba kwezvinhu zvinosimbisa simende.
2. Kugadziriswa kwe emulsion:
Maitiro ekugadzira anotanga ne emulsion polymerization, umo vinyl acetate ne ethylene monomers zvinogadziriswa polymer pamberi pezvitangisi nezvigadzirisi.
Maitiro e emulsion polymerization anodzorwa nokungwarira kuti awane huremu hwemamorekuru, chimiro, uye chimiro che copolymer chinodiwa.
3. Kugadzirisa uye kuumbwa kwepolymer:
Vinyl acetate ne ethylene monomers zvinoita kana paine catalyst kuti zvigadzire copolymer.
Maitiro ekugadzira copolymer akakosha kuti pave nemapolymer ane hunhu hwaunoda, kusanganisira hunhu hwakanaka hwekugadzira firimu uye kugona kupararirazve.
4. Kuomesa nepfapfaidzo:
Emulsion yacho inobva yaiswa nzira yekuomesa nepfapfaidzo. Izvi zvinosanganisira kupfapfaidza emulsion yacho muimba inopisa, uko mvura inopwa, zvichisiya zvidimbu zvakasimba zvepolymer inogona kunyungudika.
Mamiriro ekuomesa mafirita, akadai sekupisa uye kufamba kwemhepo, anodzorwa nokungwarira kuti pave nechokwadi chekuti hupfu hwakatsetseka hunoyerera zvakanaka.
5. Kurapa pamusoro:
Kurapa pamusoro pevhu kunowanzo shandiswa kuvandudza kugadzikana kwekuchengetedza uye kugona kupararira kweupfu hwepolymer.
Zvinowedzerwa zvinonyungudutsa mvura kana kuti zvinodzivirira macolloid zvinowanzo shandiswa pakurapa pamusoro pemvura kudzivirira kuungana kwezvimedu uye kuwedzera kupararira kweupfu mumvura.
6. Kudzora mhando:
Matanho akakomba ekudzora hunhu anoshandiswa panguva yese yekugadzira. Zvinhu zvakaita sekugoverwa kwehukuru hwezvimedu, huwandu hwezvinhu zvakawanda, huwandu hwezvinhu zvakasara zvemonomer uye tembiricha yekuchinja kwegirazi zvinotariswa kuti zvive nechokwadi chekuti chigadzirwa chinowirirana.
7. Kurongedza:
Upfu hwekupedzisira hwepolymer hunogona kunyungudika hunoiswa mumidziyo isinganyungudike kuti mvura isanyungudike, izvo zvinogona kukanganisa mashandiro ayo.
Mashandisirwo eRedispersible Polymer Powders:
RDP inoshandiswa mumabasa akasiyana-siyana ekuvaka anosanganisira zvinonamira mataira, zvinosanganisa self-leveling, masisitimu ekupedzisa kuputira kunze (EIFS) uye simende.
Upfu uhwu hunosimudzira zvinhu zvakaita sekusapinda mvura, kuchinjika uye kunamira, zvichibatsira kuvandudza mashandiro uye kugara kwenguva refu kwezvinhu izvi zvekuvaka.
mhedziso:
Upfu hwepolymer hunonyungudika hunoshandiswa zvakasiyana-siyana uye hunoshandiswa zvakanyanya muindasitiri yekuvaka. Kugadzirwa kwahwo kunosanganisira kusarudza zvinhu zvakagadziriswa nekungwarira, emulsion polymerization, spray drying, treatment pamusoro uye matanho akasimba ekudzora mhando.
Kugadzirwa kweupfu hwepolymer hunonyungudika zvakare inzira yakaoma inoda kunyatsorongeka uye kutarisisa zvinhu kuti uwane chigadzirwa chemhando yepamusoro chine hunhu hunodiwa pakuvaka.
Nguva yekutumira: Zvita-18-2023