1. Nhanganyaya:
Kuvandudzwa kwezvinhu zvekuvaka kwakonzera kugadzirwa kwezvinowedzera zvakaita seredispersible polymer powders (RDP), iyo inoita basa rakakosha mukuvandudza mashandiro ezvivakwa zvekuvaka. Pakati pemhando dzakasiyana-siyana dzeRDP, vinyl acetate-ethylene (VAE) RDP inomira pachena nekuda kwekusiyana kwayo uye kushanda kwayo mumhando dzakasiyana dzematope.
2. Hunhu hweVAE RDP hupfu:
VAE RDP poda inogadzirwa kubva kuvinyl acetate uye ethylene. Izvi zvinogadzira hupfu hwakatsetseka, husina kuyerera hune dispersibility yakanakisa mumvura. Yakakosha zvivakwa zveVAE RDP zvinosanganisira yakakwira bhondi simba, yakanaka kuchinjika uye kuenderana neyakasiyana cementitious zvinhu. Izvi zvivakwa zvinoita kuti VAE RDP ive yakanakira yekuwedzera yekuvandudza mashandiro ematokari ekuvaka.
3. Kushandiswa kweVAE RDP mumadhaka akasiyana ekuvaka:
3.1. Tile adhesive:
VAE RDP inokwidziridza simba rezvisungo uye kuchinjika kwematairi anonamira, zvichikonzera kuwedzera kwesimba rezvisungo uye kuderedzwa kuputika. Zvinhu zvayo zvekuchengetedza mvura zvinobatsirawo kuwedzera nguva yekuvhura, zvichiita kuti matiles ave nyore kuisa.
3.2. Kuvhara kwekunze kwemadziro uye kupedzisa masisitimu (EIFS):
MuEIFS, VAE RDP inovandudza kuramba kweiyo system pakutsemuka uye mamiriro ekunze. Iyo inokwidziridza kunamatira kweprimer kune substrate uye inopa kuchinjika kugarisa kuwedzera kwemafuta uye kuputika.
3.3. Kuzvimisa pasi pasi:
VAE RDP inokwidziridza kuyerera uye kuzvimiririra zvivakwa zve liner. Inovandudza kutsetseka kwepamusoro uye inoderedza shrinkage, ichipa imwe yunifomu uye yakasimba chigadziko chekuvhara pasi.
3.4. Patching mortars:
Mukugadzirisa matope, VAE RDP inowedzera simba rezvisungo uye kubatana, kuvandudza kusimba uye kushanda kwenguva refu kwekugadzirisa. Inobatsirawo kuvandudza kushanda uye kuderedza permeability, nekudaro inosimudzira kuchengetedzwa kwemwando.
4. Mhedzisiro yeVAE RDP pakuita kwedhaka:
4.1. Adhesion simba:
VAE RDP inovandudza chisungo chesimba pakati pedhaka uye substrate, zvichikonzera musangano wakasimba, wakasimba. Inogona kuumba firimu rinoshanduka pane interface kuti iwedzere kunamatira pasi pemamiriro akasiyana.
4.2. Kuchengeta mvura:
Iyo mvura-yekuchengeta zvivakwa zveVAE RDP inorebesa iyo hydration maitiro, zvichikonzera kurapa kurinani uye kunatsiridza michina zvimiro zvedhaka. Izvi zvinovimbisa kushanda kwakakwana uye kusimba kwenguva refu, kunyanya munzvimbo dzakaoma.
4.3. Rheological properties:
VAE RDP inogona kushandura rheological maitiro ematope, kuvandudza fluidity uye kushanda. Inoderedza kupatsanurwa uye kubuda ropa uku ichiwedzera kunamatira, zvichiita kuti zvive nyore kushandisa uye kugadzirira kuri nani kwepamusoro.
VAE RDP poda inoratidza kugona kukuru mukuvandudza mashandiro emhando dzakasiyana dzekuvaka. Hunhu hwayo hwakasiyana hunobatsira kuvandudza simba rezvisungo, kuchengetedza mvura uye rheological maitiro, nekudaro optimize maumbirwo edhaka nekuvandudza kusimba uye kushanda. Nekunzwisisa mashandisirwo eVAE RDP mumhando dzakasiyana dzemateki, varapi vanogona kukwidziridza mabhenefiti ayo kuti vawane mhedzisiro yekuvaka.
Nguva yekutumira: Feb-26-2024