Momwe PVC Stabilizers Amakonzera Mitu Yapamwamba Pakupanga Mafilimu a Shrink

Tangoganizani izi: Chingwe cha fakitale yanu chatsala pang'ono kuyima chifukwa filimu ya PVC yocheperako imangosanduka bwinja. Kapena kasitomala amatumizanso gulu - theka la filimuyo linapunthwa mosafananiza, ndikusiya zolongedza katundu zikuwoneka zosokoneza. Izi sizinthu zazing'ono chabe; ndizovuta zovuta zomwe zimakhazikika m'chigawo chimodzi chomwe chimanyalanyazidwa: yanuPVC stabilizer.

Kwa aliyense amene akugwira ntchito ndi PVC shrink filimu - kuchokera kwa oyang'anira opanga mpaka opanga ma phukusi - zolimbitsa thupi sizingokhala "zowonjezera". Ndiwo omwe amakonzera zowawa zomwe zimafala kwambiri m'makampani, kuyambira kuchulukirachulukira mpaka kupezeka kwashelufu. Tiyeni tifotokoze momwe amagwirira ntchito, zomwe tiyenera kupewa, komanso chifukwa chake chokhazikika choyenera chingasinthe makasitomala okhumudwa kukhala makasitomala obwereza.

Choyamba: Chifukwa Chake Kanema Wa Shrink Ndi Wosiyana (Ndi Kuvuta Kukhazikika)

Kanema wocheperako wa PVC sali ngati filimu yokhazikika yokhazikika kapena mapaipi olimba a PVC. Ntchito yake ndi kucheperachepera pakufunika—kaŵirikaŵiri ikawotchedwa ndi kutentha kwa mumsewu kapena mfuti—imene imakhalabe yamphamvu mokwanira kuteteza zinthu. Zofunikira ziwirizi (kuyankha kwa kutentha + kukhazikika) zimapangitsa kukhazikika kukhala kovuta:

• Pokonza kutentha:Kutulutsa filimuyi kumafunika kutentha mpaka 200 ° C. Popanda zokhazikika, PVC imasweka apa, ndikutulutsa hydrochloric acid (HCl) yomwe imawononga zida ndikutembenuza filimu kukhala yachikasu.

• Kutentha kwamphamvu:Pambuyo pake, filimuyo iyenera kupirira kutentha kwa 120-180 ° C panthawi yogwiritsira ntchito. Kukhazikika pang'ono, ndipo kumang'amba; kwambiri, ndipo sichingafanane.

• Alumali moyo:Akapakidwa, filimuyo imakhala m'nyumba zosungiramo katundu kapena pansi pa magetsi a sitolo. Kuwala kwa UV ndi okosijeni kumapangitsa kuti filimu yosakhazikika ikhale yopanda pake pakatha milungu ingapo, osati miyezi.

Chomera chapakatikati chapakatikati ku Ohio chinaphunzira izi movutikira: Adasinthira ku chowongolera chotsika mtengo chotengera kutsogolera kuti achepetse ndalama, kungowona mitengo yazakale ikudumpha kuchoka pa 5% mpaka 18% (filimuyo idakhala ikuphwanyidwa nthawi ya extrusion) ndipo wogulitsa wamkulu amakana kutumiza chifukwa chachikasu. Kukonza? Acalcium-zinc (Ca-Zn) stabilizer. Mitengo yazinthu zidatsikiranso ku 4%, ndipo adapewa chiwongola dzanja cha $150,000.

Magawo atatu Omwe Ma Stabilizer Amapanga Kapena Kuphwanya Kanema Wanu Wa Shrink

Zokhazikitsira sizimagwira ntchito kamodzi kokha - zimateteza filimu yanu pa sitepe iliyonse, kuchokera pamzere wotuluka kupita ku shelefu ya sitolo. Umu ndi momwe:

1.Gawo Lopanga: Sungani Mizere Ikuyenda (ndi Chepetsani Zinyalala)

Mtengo waukulu kwambiri pakupanga mafilimu ocheperako ndi nthawi yopumira. Ma stabilizer okhala ndi zopangira zopangira amachepetsa kukangana pakati pa PVC kusungunuka ndi kufa kwa extrusion, kuteteza "gelling" (resin clumpy yomwe imatseka makina).

•Kuchepetsa nthawi yosinthira ndi 20% (kuyeretsa pang'ono kwa mfuti kumwalira)

•Imatsitsa mitengo yamtengo wapatali - zokhazikika zabwino zimatsimikizira makulidwe okhazikika, kuti musataye mipukutu yosiyana.

•Imawonjezera liwiro la mzere: Kuchita bwino kwambiriCa-Znkuphatikizika kulola mizere ikuyenda 10-15% mwachangu popanda kuperekera zabwino

2.Gawo la Ntchito: Onetsetsani Kuti Ngakhale Kuchepa (Palibenso Kupaka Kwa Lumpy)

Palibe chomwe chimakhumudwitsa eni ake amtundu ngati filimu yocheperako yomwe imakhazikika pamalo amodzi kapena kumakoka kwambiri pamalo ena. Ma Stabilizer amawongolera momwe mamolekyu a PVC amapumulira pakuwotcha, kuonetsetsa kuti:

•Kutsika kofanana (50-70% pamayendedwe a makina, pamiyezo yamakampani)

•Palibe "khosi" (madontho owonda omwe amang'ambika mukakulunga zinthu zazikulu)

•Kugwirizana ndi magwero osiyanasiyana otentha (machubu a mpweya wotentha motsutsana ndi mfuti zam'manja)

3.Malo Osungira: Pitirizani Kuwoneka Kanema Watsopano (Kwautali)

Ngakhale filimu yabwino kwambiri yochepetsera imalephera ngati ikukula bwino. Ma UV stabilizer amagwira ntchito ndi zolimbitsa matenthedwe kuti atseke kuwala komwe kumaphwanya PVC, pomwe ma antioxidants amachepetsa oxidation. Chotsatira?

•30% nthawi yayitali ya alumali yamafilimu osungidwa pafupi ndi mazenera kapena m'malo osungira ofunda

•Palibe chikasu - chofunikira kwambiri pazinthu zamtengo wapatali (ganizirani zodzoladzola kapena mowa waukadaulo)

•Kumamatira kosasinthasintha: Kanema wokhazikika sataya "kugwira mwamphamvu" pazogulitsa pakapita nthawi

Zolakwitsa Zazikulu Zimapanga: Kusankha Zokhazikitsira Mtengo, Osati Kutsatira

Malamulo samangokhalira kubwerezabwereza - sangakambirane kuti apeze msika. Komabe opanga ambiri amasankhabe zokhazikitsira zotsika mtengo, zosagwirizana, koma kukanidwa kokwera mtengo:

• EU REACH:Kuyambira 2025, lead ndi cadmium mu ma CD a PVC ndizoletsedwa (palibe milingo yodziwika yololedwa).

• Malamulo a FDA:Kwa mafilimu okhudzana ndi chakudya (mwachitsanzo, mabotolo amadzi okulungirira), zokhazikika ziyenera kukwaniritsa 21 CFR Gawo 177-kusamukira ku chakudya sikuyenera kupitirira 0.1 mg/kg. Kugwiritsa ntchito zokhazikika zamafakitale apa kumayika pachiwopsezo cha chindapusa cha FDA.

• China's Miyezo Yatsopano:Ndondomeko ya 14 ya Zaka Zisanu ikulamula kuti 90% ya zokhazikika zapoizoni zilowe m'malo ndi 2025. Opanga am'deralo tsopano akuika patsogolo kusakaniza kwa Ca-Zn kuti apewe zilango.

Njira yothetsera vutoli? Lekani kuwona zokhazikika ngati malo okwera mtengo.Ca-Zn stabilizerszingawononge 10-15% kuposa zosankha zokhala ndi mtovu, koma zimachotsa ngozi zotsatiridwa ndikuchepetsa kuwononga-kusunga ndalama m'kupita kwanthawi.

Momwe Mungasankhire Chokhazikika Choyenera

Simukusowa digiri ya chemistry kuti musankhe stabilizer. Ingoyankhani mafunso awa 4:

▼ Chani'ndi mankhwala otsiriza?

• Kupaka chakudya:FDA-yogwirizana ndi Ca-Zn

• Zogulitsa panja (monga zida zam'munda):Onjezerani UV stabilizer

• Kukulunga molemera (monga mapaleti):Kusakanikirana kwapamwamba-makina-mphamvu

▼ Kodi mzere wanu umakhala wothamanga bwanji?

• Mizere yocheperako (pansi pa 100 m/mphindi):Basic Ca-Zn imagwira ntchito

• Mizere yothamanga (150+ m/mphindi):Sankhani ma stabilizer okhala ndi mafuta owonjezera kuti mupewe kukangana.

▼ Kodi mumagwiritsa ntchito PVC yobwezerezedwanso?

• Post-consumer resin (PCR) imafuna zolimbitsa thupi zokhala ndi kutentha kwapamwamba-yang'anani zolemba za "PCR-compatible".

▼ Chani'ndi cholinga chanu chokhazikika?

• Ma bio-based stabilizers (opangidwa kuchokera ku mafuta a soya kapena rosin) ali ndi 30% kutsika kwa carbon footprints ndipo amagwira ntchito bwino pa eco-brand.

Ma Stabilizer Ndi Chinsinsi Chanu Chowongolera Ubwino

Pamapeto pa tsiku, filimu yochepetsera imakhala yabwino ngati stabilizer yake. Njira yotsika mtengo, yosatsatiridwa ikhoza kusungira ndalama patsogolo, koma idzakuwonongerani ndalama zochepa, zotumizidwa zokanidwa, ndi kutaya chikhulupiriro. Chokhazikika choyenera, chomwe nthawi zambiri chimakhala chophatikiza cha Ca-Zn chogwirizana ndi zosowa zanu, chimasunga mizere ikuyenda, maphukusi amawoneka akuthwa, komanso makasitomala okondwa.

Ngati mukukumana ndi ziwopsezo zazikulu, kuchepa kwapang'onopang'ono, kapena nkhawa zakutsata, yambani ndi chokhazikika chanu. Nthawi zambiri ndi kukonza komwe mumasowa.