Redispersible polymer powder (RDP) imvura-inonyungudika polima emulsion. Ichi chinyorwa chinoshandiswa zvakanyanya muindasitiri yekuvaka, kunyanya sebhainda resimende nezvimwe zvekuvaka. Kusimba kwechisungo cheRDP ndiyo yakakosha parameter yekushandisa kwayo sezvo ichikanganisa zvakananga zvimiro zvechigadzirwa chekupedzisira. Naizvozvo, zvakakosha kuve neyakaringana uye yakavimbika bvunzo nzira yekuyera iyo bond simba reRDP.
Test Methods
Material
Zvinhu zvinodiwa kuita bvunzo iyi ndezvizvi:
1. RDP muenzaniso
2. Sandblasted aluminium substrate
3. Resin impregnated bepa (300um ukobvu)
4. Mvura-based adhesive
5. Tensile yekuedza muchina
6. Vernier caliper
chirongwa chekuedza
1. Kugadzirira kwemasampuli eRDP: Sampuli dzeRDP dzinofanirwa kugadzirirwa nehuwandu hwakakodzera hwemvura sezvakatsanangurwa nemugadziri. Samples dzinofanirwa kugadzirirwa zvinoenderana nezvinodiwa zvekushandisa.
2. Kugadzirira kweSubstrate: Iyo aluminium substrate mushure mekuputika kwejecha inofanira kucheneswa uye kuomeswa isati yashandiswa. Mushure mekuchenesa, kushata kwepamusoro kunofanirwa kuyerwa ne vernier caliper.
3. Kushandiswa kweRDP: RDP inofanira kushandiswa kune substrate maererano nemirairo yemugadziri. Ukobvu hwefirimu hunofanirwa kuyerwa uchishandisa vernier caliper.
4. Kurapa: RDP inofanira kurapa mukati menguva yakatarwa nemugadziri. Nguva yekurapa inogona kusiyana zvichienderana nerudzi rweRDP inoshandiswa.
5. Kushandiswa kwepepa rakaiswa resin: Pepa rakaiswa resin rinofanira kutemwa kuita zvidimbu zvehukuru hwakakodzera uye chimiro. Pepa rinofanira kunge rakanyatsoputirwa nemvura-based adhesive.
6. Kunamira kwemapepa: Iwo anonamira akavharidzirwa mapepa emashizha anofanira kuiswa paRDP yakavharidzirwa substrate. Chiedza chechiedza chinofanira kushandiswa kuti chive nechokwadi chekubatanidza kwakakodzera.
7. Kurapa: Iyo yekunamatira inofanira kurapa mukati menguva yakatarwa nemugadziri.
8. Tensile bvunzo: Takura sampuli mumushini wekutemesa wekuyedza. Kusimba kwesimba kunofanirwa kunyorwa.
9. Kuverenga: Kusimba kwechisungo cheRDP kunofanira kuverengwa sesimba rinodiwa kuti riparadzanise RDP yakavharidzirwa substrate kubva pamatepi epepa yakakamurwa nechepamusoro peRDP yakavharidzirwa substrate.
mukupedzisa
Iyo nzira yekuyedza inzira yakapusa uye inodhura yekuyera RDP bond simba. Iyi nzira inogona kushandiswa mukutsvagisa uye mumaindasitiri magadzirirwo kuti ave nechokwadi chekushanda kwakakwana kweRDP musimende nezvimwe zvekuvaka. Kushandisa nzira iyi kunogona kubatsira kuvandudza kudzora kwemhando uye kugadzirwa kwechigadzirwa muindasitiri yekuvaka.
Nguva yekutumira: Sep-05-2023