Labarai

Menene gabatarwar filastikfilms?

Fina-finan filastik suna wakiltar babban nau'in kayan polymeric wanda ke nuna yanayin bakin ciki, sassauƙar yanayi da faɗin fili. Ana samar da waɗannan kayan aikin injiniya ta hanyar sarrafa resins na polymer-ko dai an samo su daga man fetur ko kuma ƙarawa daga tushe masu sabuntawa-zuwa ci gaba da zanen gado tare da daidaitaccen sarrafa kauri, faɗi, da kaddarorin inji. Kasuwar fina-finan robobi ta duniya ta yi girma sosai tun farkonta a tsakiyar karni na 20, inda ake samarwa a duk shekara sama da tan miliyan 100 a duk duniya.

Samuwar fina-finai na filastik ya samo asali ne daga haɗin kai na musamman na kaddarorin: nauyi mai nauyi amma mai ɗorewa, sassauƙa kuma mai ƙarfi, kuma bayyananne ko bayyane dangane da buƙatun ƙira. Waɗannan halayen, haɗe da ƙananan farashin samarwa, sun sanya fina-finai na filastik ba makawa a kusan kowane fanni na masana'antar zamani da rayuwar yau da kullun. Daga adana sabon abinci zuwa ba da damar na'urorin lantarki masu sassauƙa na ci gaba, fina-finan filastik suna yin ayyuka waɗanda galibi ba su ganuwa ga masu amfani da ƙarshen amma masu mahimmanci ga aikin samfur da dorewa.

Ci gaba na baya-bayan nan a kimiyyar abin duniya sun faɗaɗa ƙarfin fina-finan robobi fiye da matsayinsu na gargajiya. Sabuntawa sun haɗa da fina-finai waɗanda ke canza kaddarorin don mayar da martani ga abubuwan motsa jiki, hanyoyin da za a iya canza yanayin rayuwa zuwa robobi na yau da kullun, da manyan fina-finai masu shinge waɗanda ke da damar kariya da ba a taɓa gani ba. A lokaci guda, haɓaka matsalolin muhalli sun haifar da haɓaka tsarin sake amfani da rufaffiyar madauki da kayan fim na tushen halittu waɗanda ke kiyaye aiki tare da rage tasirin muhalli.

Wane irin fim ɗin filastik?

Mafi Faɗin Fina-Finan

Fina-finan polyethylene sune nau'in fim ɗin filastik da aka fi amfani da su, wanda ya kai sama da kashi 40% na yawan cin fim ɗin filastik. Manyan Nau'o'i da Halayen Fina-finan Polyethylene:

1. Fim ɗin Polyethylene Low-Density (LDPE)

Fina-finan LDPE ana siffanta su ta hanyar sassauƙan su, nuna gaskiya, da marasa guba, kaddarorin wari. Suna da kyakkyawan juriya na ruwa, tabbatar da danshi, da kwanciyar hankali na sinadarai, yana sa su dace da tattara kayan abinci, magunguna, da samfuran amfanin yau da kullun. Fina-finan LDPE kuma suna da kyawawan kaddarorin rufe zafi kuma galibi ana amfani da su azaman yadudduka-zafi a cikin fina-finai masu haɗaka. Duk da haka, suna da ƙarancin juriya na zafi kuma basu dace da marufi mai zafi ba.

2. Fim ɗin Polyethylene Mai Girma (HDPE)

Fina-finan HDPE sun fi wuya, tsaka-tsaki, da fari a launi. Suna nuna ƙarfin ƙarfi mai ƙarfi, juriyar danshi, juriya mai zafi, da juriyar mai idan aka kwatanta da LDPE. HDPE ya dace da marufi masu ɗorewa da fina-finai na masana'antu amma yana da ƙaramin bayyana gaskiya da sheki.

3. Fim ɗin Polyethylene Low-Density Linear (LLDPE)

Fina-finan LLDPE sun haɗu da sassaucin LDPE tare da ƙarfin HDPE, suna ba da kyawawan kaddarorin shimfiɗawa da juriya mai huda. Ana amfani da su sosai a cikin fina-finai masu shimfiɗa, fina-finai masu raguwa, da fina-finai na nannade, yana sa su dace don marufi mai sauri ta atomatik.

4. Metallocene Linear Low-Density Polyethylene Film (mLLDPE)

Ana samar da fina-finai na mLLDPE ta amfani da abubuwan haɓaka ƙarfe na ƙarfe kuma suna ba da ƙarfin tasiri mai girma, ƙarfin yawan amfanin ƙasa, da mafi kyawun fayyace idan aka kwatanta da LLDPE na al'ada. Suna ba da izinin rage kaurin fim fiye da 15%, don haka rage farashin kayan. Ana yawan amfani da mLLDPE a cikin fina-finai na greenhouse, fina-finai na marufi masu nauyi, fina-finai masu raguwa, da manyan kayan marufi.

Sauran Fina-finan Fim

1. Polypropylene (PP) Fina-finai: Sanannen ga babban ma'aunin narkewa (160-170 ° C), yana sa su dace da aikace-aikacen da aka cika zafi da marufi mai aminci na microwave. Fina-finan PP suna ba da kyakkyawan juriya na sinadarai kuma galibi ana amfani da su don kayan ciye-ciye da kayan ciye-ciye da na'urar haifuwa.

2. Fina-finan Polyvinyl Chloride (PVC): Suna da ƙima don ƙayyadaddun tsabta da iya bugawa amma suna fuskantar raguwar amfani saboda matsalolin muhalli. Ragowar aikace-aikacen sun haɗa da marufi da blister da wasu fina-finai na abinci5.

3. Polyester (PET) Fina-finai: Ƙarfafa ƙarfin ƙarfi mai ƙarfi da kwanciyar hankali na thermal, fina-finai na PET ba makawa ba ne don na'urorin lantarki masu sassauƙa, kaset ɗin maganadisu, da babban marufi na abinci. Biaxially-daidaitacce PET (BOPET) yana baje kolin ingantattun ingantattun kayan inji da katangar shinge.

Fina-finan Polymer Na Musamman:

1. Polyamide (Nylon): Kayayyakin shinge na oxygen na musamman don adana abinci

2. Polyvinylidene Chloride (PVDC): Fitaccen danshi da aikin shinge na oxygen

3. Polylactic Acid (PLA): Madaidaicin tushen bio-tushen da ke fitowa tare da takin zamani, kodayake al'ada ta iyakance ta hanyar brittleness-ci gaba na baya-bayan nan sun samar da fina-finai masu sassaucin ra'ayi na PLA ta hanyar haɗa polyether plasticizers kai tsaye a cikin sarkar polymer.

Hanyoyin Samar da Fina-Finan Filastik

1. Blown Fim Extrusion: Babban tsari na fina-finai na PE, inda ake fitar da polymer da aka narke ta hanyar mutuƙar madauwari, a sanya shi cikin kumfa, kuma a sanyaya shi don samar da bututu wanda za'a iya daidaita shi cikin fim din Layer biyu. Wannan hanyar tana ba da daidaitattun kaddarorin inji a cikin na'ura da madaidaitan kwatance.

2. Fitar Fim na Cast: Ana narkar da polymer narke ta cikin lebur mutu a kan wani nadi mai sanyi, yana samar da fina-finai tare da haske na musamman da kauri. Na kowa don finafinan PP da PET inda kaddarorin gani suke da mahimmanci.

3. Kalanda: Ana amfani da shi da farko don fina-finai na PVC, inda ake amfani da fili na polymer ta hanyar jerin masu zafi masu zafi don cimma daidaiton kauri. Fina-finan da aka yi wa kalandar galibi suna da ƙoƙarce-ƙoƙarce gama gari amma ƙarancin kayan aikin injiniya iri ɗaya a faɗin faɗin.

4. Simintin Magani: Ana amfani da shi don fina-finai na musamman inda matsananciyar daidaituwa ko yanayin zafi ya hana sarrafa narke. Ana narkar da polymer ɗin a cikin sauran ƙarfi, a jefa a kan bel, kuma a bushe don samar da fim-na kowa don wasu fina-finai masu lalacewa da aikace-aikacen membrane.

5. Biaxial Orientation: Ana shimfiɗa fina-finai a cikin duka na'ura da madaidaicin kwatance, ko dai a jere (firam ɗin tanta) ko kuma lokaci guda (tsarin kumfa), haɓaka ƙarfin ƙarfi, tsabta, da kaddarorin shinge. Biaxially-daidaitacce PP (BOPP) da PET (BOPET) fina-finai sune ma'auni na masana'antu don babban marufi.

Hanyoyi masu tasowa da sabbin abubuwa a cikin Fina-finan Filastik

Masana'antar fina-finai na filastik tana haɓakawa, tare da mai da hankali kan dorewa, aiki, da inganci. Wasu fitattun abubuwa sun haɗa da:

1.Wakilan Zamewa Kyauta na PFAS:Dogayen zamewa masu dorewa waɗanda ke guje wa abubuwan per- da polyfluoroalkyl (PFAS), suna magance buƙatun aiki da matsalolin muhalli.

2. Ƙaddamar da Dorewa: Kamfanoni kamar Fox Packaging sun sami nasarar kawar da PFAS daga duk zaɓuɓɓukan marufi masu sassauƙa, daidaitawa tare da mafi girman tsari da yanayin masana'antu. FDA ta Amurka ta kulla alkawuran son rai don cire PFAS daga marufi na abinci, yana ba da gudummawa ga raguwar bayyanar PFAS na abinci.

Sabbin mafita don PFAS-Free na sarrafa fina-finai na filastik daga SILIKE

SILIKE yana ɗaukar hanya mai fa'ida tare da samfuran samfuran sa na SILIMER, yana ba da sabbin abubuwaKayan aikin sarrafa polymer kyauta na PFAS (PPAs). Wannan ingantaccen layin samfurin yana fasalta 100% tsarkakakken PFAS-kyauta PPAs, samfuran PPA marasa fluorine, da PFAS-kyauta, PPA masterbatches marasa fluorine. Ta hanyar kawar da buƙatar abubuwan da ake buƙata na fluorine, waɗannan samfuran suna haɓaka aikin masana'anta don LLDPE, LDPE, HDPE, mLLDPE, PP, da samfuran fim. Suna daidaitawa tare da sabbin ƙa'idodin muhalli yayin da suke haɓaka haɓakar samarwa, rage raguwar lokaci, da haɓaka ingancin samfur gabaɗaya. Tare da SILIKE PFAS-free PPA yana kawo fa'idodin Samfur na ƙarshe, gami da: kawar da karyewar narkewa (fatar shark), ingantaccen santsi, da ingancin saman.

Nemandawwama madadin a filastik samar da fim or PPA don aikin polyethylene-ƙarin masterbatches?  SILIKE’s PFAS-Free PPA solutions can help enhance your Plastic film production while aligning with environmental standards. Visit web: www.siliketech.com or contact us at amy.wang@silike.cn to discover more.