Kafin fahimtar masu haɓaka adhesion, dole ne mu fara fahimtar menene mannewa yake.
Adhesion: Al'amarin mannewa tsakanin tsayayyen fili da mu'amalar wani abu ta hanyar karfin kwayoyin halitta. Za'a iya haɗa fim ɗin shafi da substrate tare ta hanyar haɗin kai na injiniya, adsorption ta jiki, haɗin gwiwar hydrogen da haɗin gwiwar sinadaran, yaduwar juna da sauran tasiri. Adhesion da aka haifar da waɗannan tasirin yana ƙayyade mannewa tsakanin fim ɗin fenti da substrate. Wannan mannewa ya kamata ya zama jimlar nau'ikan haɗin gwiwa daban-daban ( sojojin mannewa) tsakanin fim ɗin fenti da ƙasa.
Yana da mahimmancin dukiya na sutura don taka rawar kariya, kayan ado da ayyuka na musamman. Ko da ma rufin kanta yana da kyawawan kaddarorin jiki da sinadarai, ba zai sami ƙima mai amfani sosai ba idan ba zai iya daurewa tare da saman ƙasa ko gashin tushe ba. Wannan yana nuna mahimmancin mannewa a cikin aikin shafi.
Lokacin da mannewar fim ɗin fenti ba shi da kyau, matakan irin su niƙa substrate, rage danko gini, ƙara yawan zafin jiki, da bushewa za a iya ɗaukar su don haɓaka ƙarfin haɗin gwiwa na inji da tasirin watsawa, don haka inganta mannewa.
Gabaɗaya mai haɓaka adhesion wani abu ne wanda ke haɓaka haɗin gwiwa tsakanin saman biyu, yana sa haɗin gwiwa ya fi ƙarfi kuma mai dorewa.
Ƙara masu tallata adhesion zuwa tsarin sutura kuma yana ɗaya daga cikin hanyoyin da suka fi dacewa don inganta mannewa.
Masu tallata adhesion suna da hanyoyin aiki guda huɗu:
Chemical anchoring ga duka fenti fim da substrate;
Chemical anchoring ga fenti fim da jiki kunsa ga substrate;
Kunna jiki don fim ɗin fenti da ƙulla sinadarai don substrate;
Kunna jiki don duka fim ɗin fenti da substrate.
Rarraba masu tallata adhesion na kowa
1. Organic polymer adhesion masu tallata. Irin waɗannan masu tallata mannewa yawanci suna ƙunshe da ƙungiyoyi masu ɗorewa kamar su hydroxyl, carboxyl, phosphate, ko tsarin polymer mai tsayi mai tsayi, waɗanda ke haɓaka sassaucin fim ɗin fenti kuma suna haɓaka mannewar fim ɗin fenti a cikin ƙasa.
2. Silane hada guda biyu wakili manne masu talla. Bayan an yi amfani da sutura tare da ƙaramin adadin silane mai haɗakarwa, silane yayi ƙaura zuwa tsaka-tsakin tsaka-tsakin da keɓaɓɓiyar. A wannan lokacin, idan ya ci karo da danshi a saman ma'auni, ana iya yin amfani da shi don samar da ƙungiyoyin silanol, sa'an nan kuma ya samar da haɗin gwiwar hydrogen tare da ƙungiyoyin hydroxyl a kan saman ma'auni ko kuma ya shiga cikin Si-OM (M yana wakiltar substrate surface) covalent bonds; a lokaci guda kuma, ƙungiyoyin silanol da ke tsakanin ƙwayoyin silane suna haɗuwa da juna don samar da tsarin hanyar sadarwa wanda ke rufe fim.
Abubuwan da za a yi la'akari lokacin zabar masu tallata mannewa
Daidaituwar tsarin;
Kwanciyar ajiyar ajiya;
Tasiri kan ainihin kayan aikin jiki da na sinadarai na sutura;
Surface jiyya na substrates;
Haɗuwa tare da sauran albarkatun ƙasa don haɓaka ƙirar sutura.
Lokacin aikawa: Maris-31-2025