Tile adhesive uye putty mafomula anofanirwa-kuva nezvigadzirwa muindasitiri yekuvaka. Iyo inoshandiswa kubatanidza mataira e ceramic kune akasiyana siyana, kusanganisira madziro uye pasi. Chinhu chakakosha chezvigadzirwa izvi RDP polymer. RDP inomirira Redispersible Polymer Powder, inova copolymer yevinyl acetate uye ethylene. Mapolymers anoita basa rakakosha mukunamira uye putty maumbirwo uye anopesvedzera zvakasiyana siyana zvivakwa, zvinosanganisira kunamatira, kubatana, kusimba uye kuita. Ichi chinyorwa chichakurukura zvinhu zvekufunga nezvazvo pakusarudza iyo yakakodzera RDP polymer uye maitiro ayo pakunamira kwetairi uye putty maumbirwo.
1. Kunamatira
Adhesion ndiko kugona kwechigadzirwa kunamatira kune dzakasiyana nzvimbo. Iyo inonamira zvimiro zveRDP polymers zvinoenderana nechimiro chemakemikari, huremu hwemamorekuru uye dhigirii rekuyambuka-kubatanidza kwepolymer. Iyo kemikari chimiro cheRDP polymer inosarudza mhando dzenzvimbo dzainowirirana nadzo. Semuenzaniso, iyo vinyl acetate chikamu chepolymer ine yakakwirira kunamatira kune isiri-polar nzvimbo dzakadai sePVC uye PE. Ethylene, kune rumwe rutivi, ine yakakwirira kunamatira kune polar nzvimbo senge kongiri nehuni.
Kuti uwane kunamatira kwakasimba, zvinokurudzirwa kushandisa yakakwira molecular uremu RDP polymers. Yepamusoro molecular uremu mapolymers anogadzira akasimba epakati pemamolecular masimba, zvichikonzera kunamira kuri nani. Iyo dhigirii yekuyambuka-inobatanidza inokanganisa kunyungudika kweRDP polymer uye nekudaro inonamatira zvimiro. Yakanyanya kuyambuka-yakabatana mapolymer haanyanyike uye ane yakaderera adhesive zvivakwa pane mashoma-akabatanidzwa mapolymer.
2. Kubatana
Kubatana (Cohesion) zvinoreva kugona kwechigadzirwa kuti chinamira pachiri. Iyo yakabatana zvimiro zveRDP polymers zvine hukama negirazi shanduko tembiricha (Tg) yepolymer. Iyo Tg yeRDP polymer inosarudza tembiricha iyo iyo polymer inoshandura kubva murubha kuenda kune yegirazi mamiriro. Mapolymers ane Tg pamusoro pekamuri tembiricha anoratidza kubatana kwakanaka, nepo mapolymer ane Tg pazasi tembiricha yekamuri anoratidza kusabatana.
Nekubatana kwakanaka, zvinokurudzirwa kushandisa RDP polymers ine Tg pamusoro pekamuri tembiricha. Yepamusoro Tg mapolymers anovandudza masimba akasimba e-intermolecular, zvichikonzera kubatana kuri nani. Inokurudzirwawo kushandisa yakakwira molecular uremu RDP polymers kuti uwedzere kubatana.
3. Kugara kwenguva refu
Durability chinhu chakakosha chekunamatira mataira uye putty formulations. Kusimba kweRDP polymers kunokanganiswa nekuramba kwavo kumvura, kupisa uye kuparara kweUV. Iyo vinyl acetate chikamu cheRDP polymer inonzwa kune hydrolysis, zvichikonzera kuderedzwa kusimba mumamiriro ehunyoro.
Kuti uwedzere kusimba, zvinokurudzirwa kushandisa maRDP polymers ane yakakwira ethylene yemukati. Vinyl ine yakanakisa mvura uye mwando kuramba zvivakwa uye saka ine nani kusimba. RDP polymers ine yakaderera vinyl acetate yemukati inoratidzawo kusimba kwakanyanya. Pamusoro pezvo, maRDP polymers ane yakanaka UV kuramba anokurudzirwa kune ekunze maapplication.
4. Processability
Kushanda kunoreva kureruka kwekushandiswa kwetairi yekunamatira uye putty mafomula. Iyo processability yeRDP polymers inokanganiswa nehukuru hwayo, kuwanda kwehuwandu, uye kupararira. Diki diki saizi RDP mapolymers anoratidza yakanakisa processability nekuti anopararira nekukurumidza mumvura, zvichikonzera inonamira yakatsetseka kana putty musanganiswa. Uyezve, maRDP mapolymer ane yakaderera kuwanda densities anoratidza yakanakisa processability sezvo ichida kushoma kuedza kusanganisa.
Kuti uvandudze processability, zvinokurudzirwa kushandisa RDP polymers ine diki diki saizi uye yakaderera yakawanda density. Pamusoro pezvo, zvinokurudzirwa kushandisa maRDP polymers ane yakakwira dispersibility mumvura kuti uwane nekukurumidza kupararira uye musanganiswa wakatsetseka.
mukupedzisa
Kusarudza iyo chaiyo RDP polymer yekunamira mataira uye putty maumbirwo kwakakosha kuti uwane yakanakisa chigadzirwa mhando. Iko kunamatira, kubatana, kusimba uye kurongeka kwepolymer kunokanganisa kushanda kwechigadzirwa. Zvinhu zvekufunga nezvazvo pakusarudza yakakodzera RDP polymer zvinosanganisira chimiro chayo chemakemikari, huremu hwemamorekuru, dhigirii rekubatanidza, tembiricha yegirazi, kuramba kumvura, kupisa uye kuderedzwa kweUV, saizi yechikamu, kuwanda kwehuwandu uye kupararira. Kunyatsofunga nezvezvinhu izvi kunogona kutungamira kune yakakwana RDP polymer kusarudzwa uye zvirinani tirairi inonamira uye putty maumbirwo.
Nguva yekutumira: Oct-07-2023