Low Density Polyethylene
Low Density Polyethylene,
Low Density Polyethylene,
Ƙananan ƙananan polyethylene (LDPE) shine resin roba ta amfani da tsarin matsa lamba ta hanyar polymerization na ethylene kyauta kuma ana kiransa "polyethylene high-pressure".Tunda sarkar kwayar halittarsa tana da rassa masu tsayi da gajere da yawa, LDPE ba ta da crystalline fiye da polyethylene mai girma (HDPE) kuma yawanta ya ragu.Yana fasalta haske, sassauƙa, juriya mai kyau na daskarewa da juriya mai tasiri.LDPE yana da ƙarfi ta hanyar sinadarai.Yana da kyau juriya ga acid (sai dai karfi oxidizing acid), alkali, gishiri, m lantarki rufi Properties.Yawan shigar tururinsa yayi ƙasa.LDPE yana da babban ruwa mai ƙarfi da ingantaccen tsari.Ya dace da ake amfani da shi a cikin kowane nau'in tsarin sarrafa thermoplastic, kamar allura gyare-gyare, gyare-gyaren extrusion, gyare-gyaren busa, rotomolding, shafi, kumfa, thermoforming, walƙiya mai zafi-jet da walƙiya thermal.
Aikace-aikace
Ana amfani da LDPE musamman don yin fina-finai.An yi amfani da ko'ina a cikin samar da aikin noma fim (mulching fim da zubar film), marufi fim (don amfani a shirya alewa, kayan lambu da kuma daskararre abinci), hura fim ga marufi ruwa (don amfani a marufi madara, soya miya, ruwan 'ya'yan itace,) wake da madarar waken soya), jakunkuna marufi masu nauyi, fim ɗin marufi, fim ɗin marufi, fim ɗin rufi, fim ɗin gini, fim ɗin marufi na masana'antu na gaba ɗaya da jakunkuna na abinci.Hakanan ana amfani da LDPE sosai a cikin samar da waya & kusoshi na kebul.LDPE mai haɗin giciye shine babban kayan da aka yi amfani da shi a cikin rufin rufin igiyoyi masu ƙarfi.Hakanan ana amfani da LDPE wajen samar da samfuran allura (kamar furanni na wucin gadi, kayan aikin likitanci, magani da kayan tattara kayan abinci) da bututun da aka ƙera su, faranti, suturar waya & na USB da samfuran filastik.Hakanan ana amfani da LDPE don yin samfuran fashe-fashe kamar kwantena don riƙe abinci, magani, kayan kwalliya da samfuran sinadarai, da tankuna.
Kunshin, Adana da Sufuri
LDPE taƙaitaccen bayani ne don Low Density Polyethylene.Ana yin polyethylene ta hanyar polymerization na ethylene.(Poly yana nufin 'mai yawa'; a gaskiya ma, yana nufin mai yawa ethylene).Ana samun Ethylene ta hanyar fashe abin da aka samu na man fetur mai haske kamar naphtha.
Ana samun ƙananan ƙarancin ƙima ta hanyar tsarin polymerization mai girma.Wannan yana haifar da kwayoyin halitta tare da rassan gefen da yawa.Rassan gefen suna tabbatar da cewa matakin crystallization ya kasance ƙananan ƙananan.Ma’ana, saboda rashin tsarin su, kwayoyin halitta ba za su iya kwantawa a ciki ko a saman junansu ta hanyar da ta dace ba, ta yadda kadan daga cikinsu su dace da wani wuri.Ƙananan digiri na crystallization, ƙananan ƙarancin abu.
Kyakkyawan misali na wannan a rayuwar yau da kullun shine ruwa da kankara.Ice ruwa ne a cikin yanayi (mafi girma) crystallized, sabili da haka ya fi ruwa wuta (kankara mai narkewa).
LDPE wani nau'in thermoplastic ne.Roba ne mai laushi idan ya zafi, sabanin roba misali.Wannan ya sa thermoplastics dace don sake amfani da su.Bayan dumama, ana iya kawo shi cikin wasu sifofin da ake so.
