Izindaba

Kuyini ukwethulwa kwepulasitikifilms?

Amafilimu epulasitiki amele ikilasi eliyisisekelo lezinto ze-polymeric ezibonakala ngobuncane bazo, obuguquguqukayo kanye nendawo ebanzi. Lezi zinto ezibunjiwe zikhiqizwa ngokucubungula ama-polymer resins-okungaba asuselwa ku-petroleum noma ngokwandayo emithonjeni evuselelekayo-kuwa amashidi aqhubekayo anogqinsi olulawulwa ngokunembile, ububanzi, kanye nezakhiwo zemishini. Imakethe yamafilimu epulasitiki yomhlaba wonke ikhule kakhulu kusukela yasungulwa maphakathi nekhulu lama-20, ngokukhiqizwa kwamanje konyaka okudlula amathani amamethrikhi ayizigidi eziyi-100 emhlabeni jikelele.

Ukuhlukahluka kwamafilimu epulasitiki asukela ekuhlanganiseni kwawo okuyingqayizivele kwezakhiwo: angasindi kodwa aqinile, aguquguqukayo kodwa aqinile, futhi abonisa ngale noma afiphele kuye ngezidingo zokwakheka. Lezi zici, ezihlanganiswe nezindleko zokukhiqiza eziphansi, zenze amafilimu epulasitiki adingeka kakhulu cishe kuyo yonke imikhakha yezimboni zesimanje nempilo yansuku zonke. Ukusuka ekulondolozeni ukusha kokudla kuye ekunikeni amandla izinto zikagesi eziguquguqukayo ezithuthukile, amafilimu epulasitiki asebenza imisebenzi evamise ukungabonakali kubasebenzisi bokugcina kodwa ebaluleke kakhulu ekusebenzeni komkhiqizo nokusimama.

Intuthuko yakamuva kusayensi yezinto ezibonakalayo ikhulise amandla amafilimu epulasitiki ngaphezu kwezindima zawo zendabuko. Izinto eziqanjiwe zihlanganisa amafilimu ashintsha izakhiwo ngokusabela ekushukumiseni kwemvelo, ezinye izinto ezibolayo kunepulasitiki evamile, namafilimu ezivimbelo ezisebenza kahle kakhulu anamakhono okuvikela angakaze abonwe. Ngasikhathi sinye, ukukhathazeka okukhulayo kwezemvelo kukhuthaze ukuthuthukiswa kwezinhlelo ezivaliwe zokugaywa kabusha nezinto zefilimu esekwe ku-bio ezigcina ukusebenza ngenkathi kunciphisa umthelela wemvelo.

Hlobo luni lwefilimu yepulasitiki?

Amafilimu amaningi kakhulu

Amafilimu e-polyethylene awuhlobo olusetshenziswa kakhulu lwefilimu yepulasitiki, ebalwa ngaphezu kuka-40% wesamba sefilimu yepulasitiki esetshenziswayo. Izinhlobo Eziyinhloko Nezimpawu Zamafilimu E-Polyethylene:

1. Ifilimu ye-Low-Density Polyethylene (LDPE)

Amafilimu e-LDPE abonakala ngokuguquguquka kwawo, ukucaca, kanye nezindawo ezingenabuthi, ezingenaphunga. Ziyakwazi ukumelana kahle namanzi, ukuvikela umswakama, nokuzinza kwamakhemikhali, okuzenza zifanelekele ukupakisha ukudla, imithi, kanye nemikhiqizo esetshenziswa nsuku zonke. Amafilimu e-LDPE nawo anezindawo ezinhle zokuvala ukushisa futhi avame ukusetshenziswa njengezendlalelo zokuqinisa ukushisa kumafilimu ayinhlanganisela. Kodwa-ke, azikwazi ukumelana nokushisa futhi azifanele ukupakishwa kokupheka okunezinga lokushisa eliphezulu.

2. Ifilimu Ye-Polyethylene Eminingi Ephezulu (HDPE)

Amafilimu e-HDPE aqinile, ashintshashintsha kancane, futhi amhlophe ngombala. Bakhombisa amandla aphakeme okuqina, ukumelana nomswakama, ukumelana nokushisa, nokumelana nowoyela uma kuqhathaniswa ne-LDPE. I-HDPE ifanele ukupakishwa okuhlala isikhathi eside namafilimu ezimboni kodwa inokucaca okuphansi nokucwebezela.

3. Ifilimu ye-Linear Low-Density Polyethylene (LLDPE)

Amafilimu e-LLDPE ahlanganisa ukuguquguquka kwe-LDPE namandla e-HDPE, enikeza izakhiwo ezinhle kakhulu zokunwebeka nokumelana nokubhoboza. Asetshenziswa kakhulu kumafilimu alula, amafilimu anciphayo, namafilimu asongayo, okuwenza alungele ukupakishwa okuzenzakalelayo kwesivinini esikhulu.

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

Amafilimu e-mLLDPE akhiqizwa kusetshenziswa ama-metallocene catalysts futhi anikeza amandla omthelela aphezulu, amandla okukhiqiza aqinile, nokucaca okungcono uma kuqhathaniswa ne-LLDPE evamile. Bavumela ukuncishiswa kogqinsi lwefilimu ngaphezu kuka-15%, ngaleyo ndlela behlise izindleko zezinto ezibonakalayo. I-mLLDPE ijwayele ukusetshenziswa kumafilimu abamba ukushisa, amafilimu okufaka izinto ezisindayo, amafilimu anciphayo, nezinto zokupakisha ezisezingeni eliphezulu.

Amanye Amafilimu Epulasitiki

1. Amafilimu e-Polypropylene (PP): Aphawuleka ngokuncibilika kwawo okuphezulu (160-170°C), okuwenza afanelekele ukusetshenziswa kokugcwalisa okushisayo kanye nokupakishwa okuphephile kwe-microwave. Amafilimu e-PP anikeza ukumelana kwamakhemikhali okuhle kakhulu futhi avame ukusetshenziselwa ukupakisha ukudla okulula kanye nezingubo zokuvala inzalo zemishini yezokwelapha.

2. Amafilimu e-Polyvinyl Chloride (PVC): Ahlonishwa kakhulu ngenxa yokucaca okukhethekile nokuphrinta kodwa abhekene nokuncipha kokusetshenziswa ngenxa yokukhathazeka kwemvelo. Izinhlelo zokusebenza ezisele zifaka ukupakishwa kwamabhamuza namanye amafilimu okunamathela5.

3. Amafilimu e-Polyester (PET): Aphakamisa amandla aphezulu okudonsa kanye nokuzinza kwe-thermal, amafilimu e-PET abalulekile kuma-electronics flexible, amateyipu kazibuthe, kanye nokupakishwa kokudla okuvimbe kakhulu. I-PET (BOPET) egxile ku-Biaxially ibonisa izakhiwo zemishini nezithiyo ezithuthukisiwe.

Amafilimu e-Specialty Polymer:

1. I-Polyamide (Inayiloni): Izakhiwo ezingavamile zokuvimbela umoya-mpilo ukuze kulondolozwe ukudla

2. I-Polyvinylidene Chloride (PVDC): Umswakama ovelele nokusebenza kwesithiyo se-oxygen

3. I-Polylactic Acid (PLA): Okunye okuvelayo okusekelwe ku-bio nokuvunda, nakuba ngokwesiko kunqunyelwe ukonakala—intuthuko yakamuva ikhiqize amafilimu e-PLA aguquguqukayo ngokuhlanganisa ama-plasticizer e-polyether ngqo ochungechungeni lwe-polymer.

Izindlela Zokukhiqiza Ifilimu Yepulasitiki

1. I-Blown Film Extrusion: Inqubo ehamba phambili yamafilimu e-PE, lapho i-polymer encibilikisiwe ikhishwa ngefa eliyindilinga, ifushulelwe ibe ibhamuza, bese ipholiswa ukuze yakhe ishubhu engenziwa isicaba ibe ifilimu enezendlalelo ezimbili. Le ndlela inikeza izakhiwo ezilinganiselayo zemishini kuzo zombili izikhombisi-ndlela zomshini neziphambene.

2. I-Cast Film Extrusion: I-polymer melt ikhishwa ngefayizi eyisicaba ku-roll epholile, ikhiqize amafilimu acace ngendlela engavamile kanye nogqinsi olufanayo. Okujwayelekile kumafilimu e-PP kanye ne-PET lapho izakhiwo ze-optical zibalulekile.

3. Ikhalenda: Isetshenziselwa ikakhulukazi amafilimu e-PVC, lapho inhlanganisela ye-polymer idluliswa ochungechungeni lwamarola ashisayo ukuze kuzuzwe ukulawula ukushuba okunembile. Amafilimu ekhalenda avamise ukuba nesiphetho esingaphezulu kodwa esifana nesakhiwo esifana ncamashi phakathi kobubanzi.

4. Ukusakaza Kwesixazululo: Kusetshenziselwa amafilimu akhethekile lapho ukufana okwedlulele noma ukuzwela ukushisa kuvimbela ukucutshungulwa kokuncibilika. I-polymer incibilika ku-solvent, iphonswe ebhandeni, bese yomiswa ukuze yakhe ifilimu-okuvamile kwamanye amafilimu abolayo kanye nezinhlelo zokusebenza ze-membrane.

5. I-Biaxial Orientation: Amafilimu anelulwa kuzo zombili izikhombisi-ndlela zomshini neziphambanayo, ngokulandelana (uhlaka lwethenda) noma ngesikhathi esisodwa (inqubo yebhamuza), athuthukisa amandla ngendlela emangalisayo, ukucaca, kanye nezakhiwo zokuvimbela. Amafilimu e-PP (BOPP) agxile ku-Biaxially-oriented kanye ne-PET (BOPET) angamazinga embonini okupakishwa okusebenza kahle kakhulu.

Amathrendi Asafufusa Nokusungulwa Kwezinto Ezintsha Kumafilimu Epulasitiki

Imboni yefilimu yepulasitiki iyathuthuka, igcizelela kakhulu ukusimama, ukusebenza, nokusebenza kahle. Amanye amathrendi aphawulekayo afaka:

1.I-PFAS-Free Slip Agents:Ama-slip agents aqhubekayo agwema izinto ze-per- kanye ne-polyfluoroalkyl (PFAS), abhekelela kokubili izidingo zokusebenza nokukhathazeka kwemvelo.

2. Izinyathelo Zokusimama: Izinkampani ezifana ne-Fox Packaging zisuse ngempumelelo i-PFAS kuzo zonke izinketho zazo zokupakisha eziguquguqukayo, ezihambisana nemithetho ebanzi nemikhuba yomkhakha. I-US FDA ithole izibopho zokuzithandela zokususa i-PFAS ekufakweni kokudla, okunomthelela ekwehleni okukhulu kokuchayeka kwe-PFAS ekudleni.

Izixazululo ezintsha ze-PFAS-Free processing aids film films from SILIKE

I-SILIKE ithatha indlela esheshayo ngemikhiqizo yayo yochungechunge lwe-SILIMER, ehlinzeka ngokusungulwayoIzinsiza zokucubungula ze-polymer zamahhala ze-PFAS (ama-PPAs). Lo mugqa womkhiqizo ophelele uhlanganisa ama-PPA ahlanzekile angenawo ama-PFAS angu-100%, imikhiqizo ye-PPA engenayo i-fluorine, kanye nama-PFAS-free, ama-PPA angena-fluorine angenayo i-fluorine. Ngokuqeda isidingo sezithasiselo ze-fluorine, le mikhiqizo ithuthukisa kakhulu inqubo yokukhiqiza ye-LLDPE, LDPE, HDPE, mLLDPE, PP, nemikhiqizo yefilimu. Zihambisana nemithetho yakamuva yezemvelo kuyilapho zithuthukisa ukusebenza kahle kokukhiqiza, ukunciphisa isikhathi sokuphumula, nokuthuthukisa ikhwalithi yomkhiqizo iyonke. Nge-PPA engena-SILIKE PFAS iletha izinzuzo zokugcina zoMkhiqizo, okuhlanganisa: ukuqedwa kokuncibilika kokuphuka (isikhumba sikashaka), ukushelela okuthuthukisiwe, kanye nekhwalithi yobuso.

Ufunaezinye izindlela ezisimeme ekukhiqizeni amafilimu epulasitiki or I-PPA ye-polyethylene esebenzayo-engeza ama-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.