Hana

Mechanism

E hoʻomaikaʻi i ka pilina mechanical

Ma ka hoʻomaikaʻi ʻana i ka permeability a me ka wettability o ka uhi i ka substrate, hiki i ka uhi ke komo i loko o nā pores a me nā māwae o ka substrate e like me ka hiki. Ma hope o ka paʻa ʻana, hoʻokumu ʻia nā heleuma liʻiliʻi he nui e hoʻopaʻa paʻa i ka substrate, a laila e hoʻomaikaʻi ai i ka hoʻopili ʻana o ke kiʻi uhi i ka substrate.

Hoʻonui i ka ikaika o Van Der Waals

E like me ka helu ʻana, inā ʻo 1 nm ka mamao ma waena o nā mokulele ʻelua, hiki i ka ikaika van der Waals ke hiki i 9.81~98.1 MPa. Ma ka hoʻomaikaʻi ʻana i ka pulu o ka uhi ʻana i ka substrate, hiki ke hoʻomaʻemaʻe ʻia ka uhi ʻana e like me ka hiki a kokoke i ka ʻili o ka substrate ma mua o ka hoʻōla ʻana, ma laila e hoʻonui ai i ka ikaika van der Waals a hoʻomaikaʻi i ka hoʻopili ʻana o ke kiʻi uhi i ka substrate.

Hāʻawi i nā pūʻulu reactive a hana i nā kūlana no ka hoʻokumu ʻana i nā paʻa hydrogen a me nā mea paʻa kemika

ʻOi aku ka ikaika o nā paʻa hydrogen a me nā paʻa kemika ma mua o ko nā pūʻali van der Waals. ʻO nā mea hoʻolaha adhesion e like me nā resins a me nā mea hoʻohui hui e hāʻawi i nā hui reactive e like me ka amino, hydroxyl, carboxyl a i ʻole nā ​​​​hui hana ʻē aʻe, hiki ke hana i nā paʻa hydrogen a i ʻole nā ​​​​mea paʻa kemika me nā atom oxygen a i ʻole nā ​​hui hydroxyl ma ka ʻili o ka substrate, e hoʻomaikaʻi ai i ka adhesion.

ʻO ka hoʻopulapula

Inā he mea polymer ka substrate i uhi ʻia, hiki ke hoʻohana i kahi mea hoʻoheheʻe ikaika a i ʻole chlorinated polyolefin resin adhesion promoter. Hiki iā ia ke hoʻoikaika i ka hoʻoheheʻe ʻana a me ka hoʻoheheʻe ʻana o ka uhi ʻana a me nā molekole substrate, a laila e hoʻopau ai ka interface, a laila e hoʻomaikaʻi ai i ka pili ʻana ma waena o ke kiʻi uhi a me ka substrate.