Adhesion - chii ichi?

Kune vakawanda akasiyana nzira kudyidzana pakati miviri miviri. Chimwe chaizvozvi ndiyo adhesion pamusoro. Ngatitarisei chii chinoita izvi uye chii ine zvivako.

Chii adhesion

The tsananguro anova zvakawanda pachena kana isu edza sei shoko iri rakaumbwa. With Latin adhaesio rinoshandurwa se "kukwezvana, adhesion, adhesion". Saka, adhesion - hakusi kubatana kwakaita heterogeneous yaiitwa yakapfupikiswa miviri kuti ndepana kuonana kwavo nyore. Kana dzakafanana pamusoro kuonana, pane nyaya chaiyo iri kudyidzana. Akadana autohesion. Vacho zvinobvira kuti tiswedere zvakajeka danho muganhu mutsetse pakati date zvinhu. Mukupesana, secrete cohesion, panguva iyo adhesion mamorekuru mukati acho. Kuti izvozvo zvakajeka, funga muenzaniso kubva muupenyu. Tora PVA guruu uye zvavo mvura. Zvadaro shandisa navo dzakasiyana dzenyika chete magirazi pamusoro. In muenzaniso uyu, mvura chinhu venhumbi tinoberekwa murombo adhesion. Zviri nyore kuti aone nekuvhura magirazi husisina kumira. Cohesion uyewo nezveunyanzvi simba mumiririri. Kana iwe micheto yekapepa katsva aka zvidimbu zviviri girazi pamwe namira, kubatana achava akavimbika zvakakwana, asi kana iwe sangana navo plasticine, wokupedzisira misodzi iri pakati. Kubva chii tinogona kugumisa kuti ayo cohesion kuti hwakasimba haingatikwaniri. Tinogona kutaura kuti vaviri vehondo izvi mukwanisi mumwe.

Mhando adhesion uye zvinoita kukanganisa simba raro

Zvichienderana chii muviri sei nemumwe, kuzviratidza zvimwe zvaidiwa kuda. The soro ukoshi rinomiririra adhesion kuitika kubata pamwe paasingazonyuri. pfuma iyi kubatsira vari zvaAtemisi adhesives siyana. Uyezve, achiri secrete adhesion nezvishoma uye mvura. Several zvinokosha vangazivikanwa kuti takatsunga zvakananga nesimba iro vacharatidza adhesion. nzvimbo iyi kunyorerana, yezvakaita kunyorera miviri uye zvivako zviri hukawanika dzavo. Mukuwedzera, kana pane imwe peya zvinhu Rine zvemagetsi mutariri kuti vachaonekwa nesungano pakati nomupi-acceptor chisungo, izvo kuchawedzera traction. A rinokosha iri reDare rirambe richibvira condensation mvura mhute pamusoro pemvura. Nokuda Fani iyi pakati substrate uye namira anogona kuitika makemikari maitiro kuti anowedzera simba pakukurukurirana. Kana muviri hwakasimba kutekesa kupinda mvura, tinogona kuona Izvi kuti uyewo hunokonzera adhesion - iri wetting. Fani iyi rinowanzoshandiswa painting, gluing, pokunamatidza lubrication, vapfume matombo, etc. Kubvisa adhesion noukama rinoshandiswa, iyo kunotadzisa zvakananga kuonana pamusoro hukawanika, uye kusimbisa nayo, Ukuwo, zvibereko activation pakati pemvura pedyo zvemaziso kana nemakemikari kurapwa kugarotamba remagetsi nemwaranzi kana kuwedzera siyana dzichipfekeka tsvina. Quantitatively, mwero nekuita kwakadaro kunotemwa nesimba zvinofanira kuiswa kuti iparadzanise kunyorera hukawanika. Kuti ayere adhesion simba, zano chaiyo inonzi adgeziometrami. The chaizvo chete akagadzirwa nzira kuti kutsunga kwayo unozivikanwa adgeziometrii.