Xov xwm

Kev qhia txog yas yog dab tsi?films?

Cov yas zaj duab xis sawv cev rau ib chav kawm tseem ceeb ntawm cov khoom siv polymeric uas muaj lawv qhov xwm txheej nyias, yoog tau thiab thaj chaw dav. Cov khoom siv tsim no yog tsim los ntawm kev ua cov polymer resins - los ntawm roj av lossis nce ntxiv los ntawm cov khoom siv rov ua dua tshiab - mus rau hauv cov ntawv txuas ntxiv nrog kev tswj hwm qhov tuab, dav, thiab cov khoom siv kho tshuab. Kev lag luam yas zaj duab xis thoob ntiaj teb tau loj hlob sai heev txij li thaum nws pib hauv nruab nrab xyoo pua 20th, nrog rau kev tsim khoom txhua xyoo tshaj 100 lab metric tons thoob ntiaj teb.

Qhov ua tau ntau yam ntawm cov yas zaj duab xis yog los ntawm lawv cov yam ntxwv tshwj xeeb: lub teeb yuag tab sis ruaj khov, yoog tau tab sis muaj zog, thiab pob tshab lossis tsis pom tseeb nyob ntawm qhov yuav tsum tau ua. Cov yam ntxwv no, ua ke nrog cov nqi tsim khoom qis, tau ua rau cov yas zaj duab xis tsis tseem ceeb hauv txhua qhov chaw ntawm kev lag luam niaj hnub thiab lub neej txhua hnub. Txij li kev khaws cia cov zaub mov tshiab mus rau kev ua kom muaj cov khoom siv hluav taws xob yooj ywm, cov yas zaj duab xis ua haujlwm uas feem ntau tsis pom rau cov neeg siv kawg tab sis tseem ceeb rau kev ua haujlwm ntawm cov khoom thiab kev ruaj khov.

Cov kev nce qib tshiab hauv kev tshawb fawb txog cov khoom siv tau nthuav dav cov peev xwm ntawm cov yas zaj duab xis ntau dua li lawv lub luag haujlwm ib txwm muaj. Kev tsim kho tshiab suav nrog cov yas zaj duab xis uas hloov cov khoom raws li kev cuam tshuam ntawm ib puag ncig, lwm txoj hauv kev uas lwj tau rau cov yas ib txwm muaj, thiab cov yas thaiv kev ua tau zoo nrog cov peev xwm tiv thaiv tsis tau muaj dua. Tib lub sijhawm, kev txhawj xeeb txog ib puag ncig uas loj hlob tuaj tau txhawb kev tsim cov txheej txheem rov ua dua tshiab thiab cov khoom siv yas uas ua los ntawm cov khoom siv uas tswj tau kev ua haujlwm thaum txo cov kev cuam tshuam rau ib puag ncig.

Hom yas zaj duab xis twg?

Cov yeeb yaj kiab dav dav tshaj plaws

Cov yeeb yaj kiab Polyethylene yog hom yas siv ntau tshaj plaws, suav txog ntau dua 40% ntawm tag nrho cov yas siv. Cov Hom Tseem Ceeb thiab Cov Yam Ntxwv ntawm Polyethylene Films:

1. Zaj duab xis Polyethylene qis-density (LDPE)

Cov yeeb yaj kiab LDPE muaj cov yam ntxwv ntawm lawv qhov yooj ywm, pob tshab, thiab tsis muaj tshuaj lom, tsis muaj ntxhiab. Lawv muaj kev tiv thaiv dej zoo heev, tiv thaiv dej noo, thiab ruaj khov tshuaj lom neeg, ua rau lawv tsim nyog rau kev ntim khoom noj, tshuaj, thiab cov khoom siv txhua hnub. Cov yeeb yaj kiab LDPE kuj muaj cov yam ntxwv zoo rau kev kaw cua sov thiab feem ntau siv ua cov txheej kaw cua sov hauv cov yeeb yaj kiab sib xyaw. Txawm li cas los xij, lawv tsis muaj kev tiv thaiv cua sov thiab tsis haum rau kev ntim khoom noj kub siab.

2. Zaj duab xis Polyethylene siab (HDPE)

Cov yeeb yaj kiab HDPE yog cov tawv dua, semi-translucent, thiab dawb. Lawv muaj lub zog tensile zoo dua, tiv taus dej noo, tiv taus kub, thiab tiv taus roj piv rau LDPE. HDPE yog qhov tsim nyog rau kev ntim khoom ruaj khov thiab cov yeeb yaj kiab kev lag luam tab sis nws muaj qhov pom tseeb thiab ci ntsa iab tsawg dua.

3. Zaj duab xis Polyethylene uas tsis muaj zog thiab tsis sib zog (LLDPE)

Cov yeeb yaj kiab LLDPE sib xyaw ua ke qhov yooj ywm ntawm LDPE nrog lub zog ntawm HDPE, muab cov yam ntxwv zoo heev rau kev ncab thiab tiv taus kev tho. Lawv siv dav hauv cov yeeb yaj kiab ncab, cov yeeb yaj kiab ntsws, thiab cov yeeb yaj kiab qhwv, ua rau lawv zoo tagnrho rau kev ntim khoom sai.

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

Cov yeeb yaj kiab mLLDPE yog tsim los ntawm kev siv cov tshuaj catalysts metallocene thiab muaj zog cuam tshuam siab dua, lub zog tensile yield, thiab pob tshab zoo dua piv rau cov LLDPE ib txwm muaj. Lawv tso cai rau kev txo qhov tuab ntawm zaj duab xis los ntawm ntau dua 15%, yog li txo cov nqi khoom siv. mLLDPE feem ntau siv rau hauv cov yeeb yaj kiab tsev cog khoom, cov yeeb yaj kiab ntim khoom hnyav, cov yeeb yaj kiab ntsws, thiab cov ntaub ntawv ntim khoom zoo.

Lwm Cov Yeeb Yaj Kiab Yas

1. Cov Yeeb Yaj Kiab Polypropylene (PP): Nws muaj qhov kub siab heev (160-170°C), ua rau lawv haum rau kev siv rau hauv qhov kub thiab kev ntim khoom uas siv tau rau hauv lub tshuab hluav taws xob microwave. Cov yeeb yaj kiab PP muaj kev tiv thaiv tshuaj lom neeg zoo heev thiab feem ntau siv rau kev ntim khoom noj txom ncauj thiab cov ntaub qhwv khoom siv kho mob kom tsis muaj kab mob.

2. Cov Yeeb Yaj Kiab Polyvinyl Chloride (PVC): Muaj nqis rau qhov meej thiab luam tawm tau zoo heev tab sis tab tom ntsib kev siv tsawg dua vim muaj kev txhawj xeeb txog ib puag ncig. Cov ntawv thov seem suav nrog cov ntawv ntim khoom blister thiab qee cov yeeb yaj kiab cling5.

3. Cov Yeeb Yaj Kiab Polyester (PET): Muaj lub zog tensile siab thiab thermal stability, cov yeeb yaj kiab PET yog qhov tseem ceeb rau cov khoom siv hluav taws xob yooj ywm, cov ntaub nplaum sib nqus, thiab cov khoom ntim khoom noj uas muaj kev cuam tshuam siab. PET ob sab (BOPET) qhia txog cov khoom siv kho tshuab thiab kev cuam tshuam zoo dua.

Cov Yeeb Yaj Kiab Polymer Tshwj Xeeb:

1. Polyamide (Nylon): Cov khoom zoo heev uas tiv thaiv tau cov pa oxygen rau kev khaws cia zaub mov

2. Polyvinylidene Chloride (PVDC): Kev ua tau zoo heev ntawm kev tiv thaiv dej noo thiab oxygen

3. Polylactic Acid (PLA): Lwm txoj hauv kev tshiab uas siv tau rau hauv cov khoom siv bio-based uas muaj peev xwm ua kom lwj tau, txawm hais tias feem ntau tsuas yog muaj kev txwv los ntawm kev tawg yooj yim xwb—kev nce qib tsis ntev los no tau tsim cov yeeb yaj kiab PLA uas yooj ywm los ntawm kev siv cov polyether plasticizers ncaj qha rau hauv cov saw polymer.

Cov Txheej Txheem Tsim Khoom Yas Yas

1. Kev Siv Tshuab Los Ua Zaj Duab Xis: Cov txheej txheem tseem ceeb rau cov zaj duab xis PE, qhov twg cov polymer yaj raug extruded los ntawm lub pwm puag ncig, inflated rau hauv lub npuas, thiab txias kom ua ib lub raj uas tuaj yeem flattened rau hauv ob txheej zaj duab xis. Txoj kev no muab cov khoom siv kho tshuab sib npaug hauv ob qho tib si tshuab thiab transverse kev taw qhia.

2. Kev Siv Zaj Duab Xis Uas Muab Tso Tawm: Cov polymer yaj raug rho tawm los ntawm lub tshuab tuag tiaj tiaj rau ntawm lub yob txias, tsim cov zaj duab xis uas muaj qhov meej thiab tuab sib xws. Feem ntau rau cov zaj duab xis PP thiab PET qhov twg cov khoom siv kho qhov muag tseem ceeb heev.

3. Kev Siv Calendering: Feem ntau siv rau cov yeeb yaj kiab PVC, qhov twg cov tshuaj polymer raug dhau los ntawm ntau lub rollers cua sov kom ua tiav qhov tuab tswj tau. Cov yeeb yaj kiab Calendered feem ntau muaj qhov tiav zoo dua tab sis cov khoom siv kho tshuab tsis sib xws thoob plaws qhov dav.

4. Kev Tsim Cov Tshuaj: Siv rau cov yeeb yaj kiab tshwj xeeb uas qhov sib xws heev lossis qhov kub rhiab heev ua rau tsis tuaj yeem ua cov txheej txheem yaj. Cov polymer raug yaj rau hauv cov kuab tshuaj, pov rau ntawm txoj siv, thiab ziab kom ua zaj duab xis - feem ntau siv rau qee cov yeeb yaj kiab lwj thiab cov ntawv thov membrane.

5. Kev Taw Qhia Ob Sab: Cov yeeb yaj kiab raug ncab rau hauv ob qho kev taw qhia ntawm lub tshuab thiab transverse, los yog ua ntu zus (tenter frame) lossis tib lub sijhawm (cov txheej txheem npuas), ua kom muaj zog, meej, thiab cov khoom thaiv zoo dua. Cov yeeb yaj kiab PP (BOPP) thiab PET (BOPET) ob sab yog cov qauv kev lag luam rau kev ntim khoom ua tau zoo.

Cov Qauv Tshiab thiab Kev Tsim Kho Tshiab hauv Cov Yeeb Yaj Kiab Yas

Kev lag luam yas yas tab tom hloov zuj zus, nrog rau kev tsom mus rau kev ruaj khov, kev ua tau zoo, thiab kev ua haujlwm zoo. Qee qhov kev hloov pauv tseem ceeb suav nrog:

1.Cov Tshuaj Pleev Uas Tsis Muaj PFAS:Cov neeg sawv cev uas ruaj khov uas zam cov tshuaj per- thiab polyfluoroalkyl (PFAS), daws teeb meem kev ua tau zoo thiab kev txhawj xeeb txog ib puag ncig.

2. Cov Kev Pib Txhawb Kom Muaj Kev Ruaj Ntseg: Cov tuam txhab zoo li Fox Packaging tau ua tiav tshem tawm PFAS ntawm lawv cov kev xaiv ntim khoom yooj ywm, ua raws li cov kev cai lij choj dav dav thiab kev lag luam. US FDA tau cog lus tias yuav tshem tawm PFAS ntawm cov ntim khoom noj, ua rau muaj kev txo qis ntawm kev raug PFAS hauv kev noj haus.

Cov kev daws teeb meem tshiab rau kev ua cov khoom tsis muaj PFAS pab cov yas zaj duab xis los ntawm SILIKE

SILIKE siv txoj hauv kev ua ntej nrog nws cov khoom SILIMER series, muab cov khoom tshiabCov khoom siv ua cov polymer uas tsis muaj PFAS (PPAs)). Cov kab khoom lag luam no muaj 100% ntshiab PFAS-dawb PPAs, cov khoom PPA uas tsis muaj fluorine, thiab PFAS-dawb, fluorine-free PPA masterbatches. Los ntawm kev tshem tawm qhov xav tau cov tshuaj ntxiv fluorine, cov khoom no txhim kho cov txheej txheem tsim khoom rau LLDPE, LDPE, HDPE, mLLDPE, PP, thiab cov khoom zaj duab xis. Lawv ua raws li cov cai ib puag ncig tshiab thaum tseem txhawb kev ua haujlwm zoo, txo qis lub sijhawm tsis ua haujlwm, thiab txhim kho cov khoom zoo tag nrho. Nrog SILIKE PFAS-dawb PPA coj cov txiaj ntsig kawg ntawm cov khoom, suav nrog: tshem tawm cov pob txha tawg (daim tawv nqaij ntses), txhim kho kev du, thiab qhov zoo ntawm qhov chaw.

Nrhiav rauCov kev xaiv uas ruaj khov hauv kev tsim cov yas zaj duab xis or PPA rau cov polyethylene functional-additive 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.