Upfu hwepolymer hunosanganiswazve (RDP) musanganiswa wakaoma wepolymer nezvimwe zvinoshandiswa zvakanyanya mukuvaka, kunyanya mukugadzira mamortar akaoma. Upfu uhwu hunoita basa rakakosha mukuvandudza mashandiro uye hunhu hwezvinhu zvakasiyana-siyana zvekuvaka zvakaita sematiles, magrout, macompounds anozvienzanisa uye maplaster ecementitious.
Zvikamu zvikuru:
Hwaro hwepolymer:
Ethylene vinyl acetate (EVA): EVA copolymer inowanzo shandiswa muRDP nekuda kwehunhu hwayo hwakanaka hwekugadzira firimu, kunamira kwayo, uye kuchinjika kwayo. Hunhu hwevinyl acetate mu copolymer hunogona kugadziriswa kuti huchinje hunhu hwepolymer.
Vinyl Acetate vs. Ethylene Carbonate: Zvichienderana nezvinodiwa zvekushandisa, vagadziri vanogona kushandisa ethylene carbonate pachinzvimbo chevinyl acetate. Ethylene carbonate ine simba rekudzivirira mvura uye kunamira kwakawedzera mumamiriro ekunze ane hunyoro.
MaAcrylic: Mapolymer eAcrylic, anosanganisira maacrylic kana macopolymer chaiwo, anoshandiswa nekuda kwekusagadzikana kwemamiriro ekunze, kugara kwenguva refu, uye kushanduka-shanduka. Anozivikanwa nekunamatira zvakanaka kune akasiyana-siyana ma substrates.
Colloid inodzivirira:
Hydroxypropyl methylcellulose (HPMC): HPMC imhando ye colloid inodzivirira inoshandiswa zvakanyanya muRDP. Inovandudza kugona kupararira kwe polymer particles uye inowedzera hunhu hwese hwehupfu.
Polyvinyl alcohol (PVA): PVA imwe colloid inodzivirira inobatsira mukugadzikana uye kupararira kwezvikamu zvepolymer. Inobatsirawo kudzora kusimba kwehupfu.
Chinoisa purasitiki:
Dibutyl Phthalate (DBP): DBP muenzaniso wepurasitiki inowanzowedzerwa kuRDP kuti ivandudze kuchinjika uye kugona kwayo kushandiswa. Inobatsira kudzikisa tembiricha yekuchinja kwegirazi repolymer, zvichiita kuti ive nyore kupfava.
chizadziro:
Calcium Carbonate: Zvinozadza zvakaita secalcium carbonate zvinogona kuwedzerwa kuti zviwedzere hupfu hwakawanda uye zvinopa nzira isingadhuri yekugadzirisa hunhu hwakadai semagadzirirwo, maburi uye kupenya.
Zvinosimbisa muviri uye zvinorwisa ma antioxidants:
Zvinosimbisa: Izvi zvinoshandiswa kudzivirira kuora kwepolymer panguva yekuchengetwa nekugadzirisa.
Maantioxidant: Maantioxidant anodzivirira polymer kubva mukuora kwe oxidative, zvichiita kuti RDP igare kwenguva refu.
Mabasa echikamu chimwe nechimwe:
Hwaro hwepolymer: Hunopa hunhu hwekugadzira firimu, kunamira, kuchinjika uye simba remuchina kuchinhu chekupedzisira.
Colloid inodzivirira: Inowedzera kugona kupararira, kugadzikana uye kupararira kwezvikamu zvepolymer.
Plasticizer: Inovandudza kuchinjika uye kugona kushandiswa.
Zvizadza: Gadzirisa zvinhu zvakaita semagadzirirwo, maburi, uye kusviba.
Zvinosimbisa muviri uye zvinorwisa mabhakitiriya: Zvinodzivirira kuora kwema polymer panguva yekuchengetwa nekugadzirisa.
mhedziso:
Upfu hwepolymer hunosanganiswa nechinhu (RDP) chinhu chinoshandiswa pakuvaka zvinhu zvemazuva ano uye chinoshanda zvakanyanya. Kuumbwa kwahwo nemakemikoro, kusanganisira mapolymer akadai seEVA kana acrylic resins, protective colloids, plasticizers, fillers, stabilizers uye antioxidants, hwakagadzirwa nokungwarira kuti huenderane nezvinodiwa zvekushandisa kwega kwega. Kusanganiswa kwezvinhu izvi kunobatsira kuvandudza kusanganiswa kweupfu, simba rekubatanidza, kuchinjika uye kushanda kwese mu dry mix mortar formulations.
Nguva yekutumira: Zvita-18-2023