Plasticizers a cikin Rubutun Formulations

Plasticizers ana amfani da su don sarrafa tsarin samar da fina-finai na sutura bisa ga busassun kayan aikin fim na jiki. Samar da fim ɗin da ya dace yana da mahimmanci don biyan buƙatu akan takamaiman kaddarorin shafi kamar bayyanar fim ɗin busassun, mannewa substrate, elasticity, a hade tare da babban matakin taurin lokaci guda.

Plasticizers suna aiki ta hanyar rage yawan zafin jiki na fim da kuma elasticize shafi; Masu aikin filastik suna aiki ta hanyar haɗa kansu tsakanin sarƙoƙi na polymers, tazarar su dabam (ƙaramar "ƙarar kyauta"), don haka yana rage yawan zafin jiki na gilashin don polymer da kuma sanya shi taushi.

Kwayoyin da ke cikin kayan samar da fim na polymeric, irin su nitrocellulose (NC), yawanci suna nuna ƙananan motsi na sarkar, wanda aka bayyana ta hanyar hulɗar kwayoyin halitta mai karfi (wanda van der Waals ya bayyana) na sarƙoƙi na polymer. Matsayin mai yin robobi shine rage ko hana gaba ɗaya samuwar irin wannan haɗin gwiwa. A cikin nau'in polymers na roba ana iya samun wannan ta hanyar haɗa sassan elasticizing ko monomers waɗanda ke hana hulɗar kwayoyin halitta; Ana kiran wannan tsarin gyaran sinadarai da "plastiation na ciki". Don natural samfurori ko polymers masu wuya na aiki mara kyau, zaɓin shine amfani da filastik na waje a cikin tsarin sutura

Plasticizers suna hulɗa ta jiki tare da ƙwayar ƙwayar cuta ta polymer, ba tare da amsa sinadarai ba kuma suna samar da tsarin kamanni. Haɗin gwiwar ya dogara ne akan ƙayyadaddun tsari na filastik, yawanci yana ƙunshe da nau'in polar da wadanda ba na polar ba, kuma yana haifar da rage zafin gilashin (Tg). Domin tabbatar da babban inganci, filastik ya kamata ya iya shiga cikin guduro a yanayin ƙirƙirar fim.

Plasizers na gargajiya ƙananan kayan aikin kwayoyin halitta ne, kamar phthalate esters. Koyaya, kwanan nan samfuran kyauta na phthalate an fi son yayin amfani da esters na phthalate yana iyakance saboda damuwar amincin samfur.