Nkhani

Sharkskin (kusweka kwa melting) kumakhudza ubwino ndi magwiridwe antchito a polima. Dziwani zomwe zimayambitsa, njira zachikhalidwe, komanso chifukwa chake zida zothandizira polima zopanda fluorine ndi PFAS monga SILIKE SILIMER Polymer Processing Aids ndi njira ina yokhazikika.

Kodi kusweka kwa sharkskin kapena surface melt fracture ndi chiyani panthawi yotulutsa ma polima?

Sharkskin (yomwe imadziwikanso kuti kusweka kwa kusungunuka kwa pamwamba) ndi vuto la pamwamba lomwe limapezeka panthawi yotulutsa polymer melts, pomwe extrudate imakhala ndi mawonekedwe okhwima, ozungulira, kapena ozungulira ofanana ndi kapangidwe ka khungu la shaki. makamaka pazinthu monga kuphulika kwa filimu, kupanga extrusion, ndi kuphimba waya.

Imadziwika ndi:

Malo owuma, osawoneka bwino, kapena ozungulira pa extrudate (kusungunuka kwa polima pamene ikutuluka mu die).

Zikuoneka ngati kapangidwe ka khungu la shaki, komwe ndi komwe dzinali linachokera.

Zomwe zimayambitsa khungu la shark mu polymer extrusion

Sharkskin ndi mtundu wa kusweka kwa kusungunuka, komwe kumachitika chifukwa cha kusakhazikika kwa khoma la polymer-die. Pamene kusungunuka kwa polymer kutuluka mu die, kumachepa mwadzidzidzi kwa kuthamanga kwa mpweya ndi kuwonjezeka kwakukulu kwa liwiro.

Ngati kusungunukako kukakamira kwambiri pakhoma la die (kuchepa kwa khoma), gawo la pamwamba limatambasulidwa kwambiri. Izi zimapangitsa kuti pamwamba pa polima pasungunuke ndi kung'ambika nthawi ndi nthawi, zomwe zimapangitsa kuti khungu la sharks liwonekere.

Zinthu Zomwe Zimachitika Pachikopa cha Sharks

Kuchepetsa kupsinjika kwa mpweya pamwamba pa malire ofunikira (nthawi zambiri ~ 0.1–0.3 MPa, kutengera polima).

Liwiro lalikulu la extrusion / kucheka.

Ma polima okhala ndi kukhuthala kwakukulu kapena kulemera kwakukulu kwa mamolekyulu ndi omwe amakhudzidwa kwambiri, ndipo amapezeka kawirikawiri mu ma polima a PP ndi a linear (monga LLDPE,mLLDPE) kuposa ma polima opangidwa ndi nthambi.

Zotsatira za Opanga

Mafilimu, mapepala, kapena zokutira pamwamba sizili bwino.

Kuchepa kwa mphamvu zamakina (chifukwa zolakwika zimatha kukhala zosungira nkhawa).

Mavuto okhudzana ndi kumveka bwino kwa kuwala ndi kukongola.

Kodi Mungathetse Bwanji Sharkskin ndi Kusweka kwa Polymer Melt Extrudates?

Mayankho ndi Zolepheretsa Zowonjezera Zachikhalidwe za Polymer

Ma PPA a Fluoropolymer akhala akugwiritsidwa ntchito kuyambira m'ma 1960 kuti achepetse khungu la sharks. Amagwira ntchito posamukira ku malo ouma panthawi yotulutsa, kuchepetsa mphamvu ya pamwamba ndikuthandizira kutsetsereka kwa polima. Ngakhale kuti ndi othandiza, ma PPA awa amachokera ku PFAS, zomwe zikubweretsa nkhawa pa chilengedwe ndi thanzi:

• Kusasinthika kwa nthaka ndi madzi

• Kuchulukana kwa thupi ndi kusokonezeka kwa endocrine komwe kungachitike

• Kuwunika malamulo padziko lonse lapansi

Kukwera kwa Zothandizira Zopangira Polima Zopanda PFAS: Tsogolo la Mayankho Okhazikika Owonjezera

Mayankho a PPA a SILIKE SILIMER PFAS a PPAS a Smarter, Greener Extrusion

Mndandanda wa SILIMER uli ndi mitundu yonse yaZothandizira polima zopanda PFAS (PPAS)) yopangidwira zosowa zamakono zopangira:

• Zowonjezera zopanda 100% PFAS

•Ma masterbatches opanda fluorine

• Ma PPA opanda fluorine

• Zowonjezera zopanda PTFE

Mayankho awa adapangidwa kuti awonjezere magwiridwe antchito komanso kuthetsa zoopsa zokhudzana ndi PFAS.

 Ma PPA opanda SILIKE SILIMER PFAS amagwirizana ndi mitundu yosiyanasiyana ya ma polima ndi njira zotulutsira, zomwe zimapangitsa kuti ntchito izi zitheke bwino:

• Ma polyolefin ndi ma resin a polyolefin obwezerezedwanso

• Makanema odziwika bwino, ochita sewero, komanso opangidwa ndi zigawo zambiri

• Kutulutsa ulusi ndi monofilament

•Kutulutsa chingwe ndi chitoliro

•Mapulogalamu a Masterbatch ndi compounding

Kaya kupanga mafilimu, mapaipi, zingwe, kapena ulusi, ma SILIMER PPA amathandiza opanga kuti azitha kukonza bwino, kukonza malo abwino, komanso kupanga bwino.

Kodi mukudziwa kuti ndi PPA iti yopanda PFAS yomwe opanga ma polymer amakonda?

SILIKE SILIMER 9100- Chithandizo chothandizira kukonza ma polima opanda PFAS cha ma Polyolefin ndi ma resin a polyolefin obwezerezedwanso

SILIKE SILIMER 9200-Chowonjezera cha pulasitiki chopanda fluorine chopangira zinthu zowonjezera

SILIKE SILIMER 9300- PPA yopanda mtengo ya PFAS ya filimu, chitoliro, ndi waya ndi chingwe chowonjezera

SILIKE SILIMER 9400- Chowonjezera chopangira chopanda fluorine chomwe chikutsatira malamulo ambiri

....

Chifukwa ChosankhaKodi SILIKE's PFAS-Free Polymer Processing Aids?

Monga zowonjezera zachikhalidwe zochokera ku fluoropolymer, zowonjezera zogwira ntchito za SILIMER PFAS-Free zimachotsa fluorine, zimapereka magwiridwe antchito apamwamba—popanda zoopsa zachilengedwe:

• Mafuta Owonjezera - Mafuta abwino amkati/kunja kuti zinthu ziyende bwino

• Kuthamanga Kwambiri kwa Kutulutsa - Kuthamanga kwakukulu komwe kumawonjezera kuuma kwa die

• Malo Opanda Zilema - Kuchotsa kusweka kwa mafupa (shark skin) ndikukweza ubwino wa pamwamba

• Kuchepetsa Nthawi Yogwira Ntchito - Kuyeretsa nthawi yayitali, kusokoneza kwa mizere yochepa

• Chitetezo cha Zachilengedwe - Chopanda PFAS, chogwirizana ndi REACH, EPA, PPWR ndi miyezo yokhazikika padziko lonse lapansi

Kuyambira filimu ndi ulusi mpaka waya ndi mapaipi otulutsa, zilema za khungu la shark siziyeneranso kusokoneza magwiridwe antchito, khalidwe, kapena kutsatira malamulo. Ndi zothandizira kukonza ma polima zopanda SILIKE SILIMER PFAS, opanga amatha kupeza kutulutsa bwino, kupanga bwino, komanso kugwira ntchito mokhazikika.

Ngati mukufuna njira zotsatirazi:

• Chotsani khungu la shark mu polymer extrusion,

• Gwiritsani ntchito zowonjezera za polymer zopanda PFAS pa chitoliro ndi chingwe chowonjezera,

• Ikani ma PPA okhazikika pa filimu ndi ulusi wotulutsa,

• Gwiritsani ntchito zothandizira kukonza ma polima opanda fluorine,

• Sinthani kuchuluka kwa extrusion, kapena chepetsani kuchuluka kwa die ndi zolakwika pamwamba pa polima extrusion

Lumikizanani ndi Amy Wang (amy.wang@silike.cnkapena pitaniwww.siliketech.com tPezani njira yanu yopanda PFAS yogwiritsira ntchito njira zotulutsira kapena zowonjezera za polima zotulutsira zinthu zomwe sizimawononga chilengedwe.