Puas yog PP zoo dua li PET Moisture Barrier?

Cov Lus Nug Txog Cov Dej Num Barrier

Rau cov kws ntim khoom xaiv cov khoom siv hlua khi lossis cov yeeb yaj kiab, cov dej noo thaiv kev ua haujlwm tuaj yeem yog qhov tseem ceeb. Cov khoom uas khaws cia rau hauv qhov chaw ntub dej, xa mus rau thaj chaw huab cua, lossis ntim nrog cov khoom tsis muaj dej noo yuav tsum tau ntim cov khoom uas ua kom tsis muaj dej noo. Qhov no ua rau muaj lus nug ntau: Puas yog PP pluaj zoo dua li PET raws li kev tiv thaiv noo noo? Thaum muab piv cov dej vapor kis tau tus nqi, cov ntaub ntawv qhia tau hais tias oriented polypropylene (OPP) zaj duab xis muaj kwv yees li 5.4 lub sij hawm zoo dua noo noo barrier kev ua tau zoo dua PET ntawm sib npaug thickness. Kev nkag siab txog qhov sib txawv ntawm cov khoom siv no pab cov kws tshaj lij xaiv cov khoom ntim zoo rau lawv cov ntawv thov tshwj xeeb.

Ntawm Jushuo Ntim , peb nquag tau txais cov lus nug no los ntawm cov neeg yuav khoom ntsuas PP pluaj rau cov ntawv thov uas muaj kev txhawj xeeb txog kev ya raws. Peb cov ntaub ntawv tsim tawm tau lees paub tias PP pluaj lub hauv paus tsis muaj dej tsis haum-ib qho ntawm nws cov qauv tsis-polar molecular-ua rau nws tsim nyog rau kev khaws cia sab nraum zoov, kev ua liaj ua teb, thiab thaj chaw ntub dej.

1. Moisture Barrier: Cov ntaub ntawv

1.1 Barrier Performance Comparison

Tshaj tawm cov ntaub ntawv xeem muab cov lus teb meej rau cov lus nug ntawm cov dej noo barrier. Raws li kev soj ntsuam ywj pheej piv rau PET thiab taw qhia polypropylene (OPP) cov yeeb yaj kiab ntawm tib lub thickness, BOPP tau pom tias muaj txiaj ntsig zoo dua dej vapor barrier kev ua haujlwm :

Cov ntaub ntawv qhia tau hais tias BOPP cov dej vapor kis tau tus nqi yog kwv yees li 5.4 npaug qis dua tus tsiaj PET, ua kom pom tseeb tias muaj kev cuam tshuam zoo dua ntawm cov dej noo. Cov peev txheej kev lag luam tau lees paub tias kev taw qhia polypropylene cov dej noo thaiv yog kwv yees li 3 npaug zoo dua li PET's . Qhov sib txawv ntawm cov dej vapor barrier khoom yog vim qhov sib txawv ntawm polymer molecular polarity .

1.2 Vim li cas PP thiaj li muaj dej noo zoo dua

Qhov zoo tshaj noo noo barrier ntawm PP piv rau PET cuam tshuam rau polymer chemistry. PP yog non-polar hydrocarbon polymer nrog tsawg affinity rau cov dej molecules, uas ua rau qis dua noo noo permeability. PET muaj ester pawg uas muaj polarity ntau dua, tsim ntau qhov chaw sib cuam tshuam rau cov dej molecules kom dhau los ntawm cov qauv polymer. .

Raws li kev ntim cov ntaub ntawv tshawb fawb, cov dej vapor barrier kev ua tau zoo ntawm polyolefins zoo li PP yog qhov zoo tshaj plaws ntawm polyesters xws li PET vim lawv qhov dej tsis zoo thiab qis qis rau cov dej molecule diffusion.

2. Daim duab Barrier tiav

2.1 Oxygen Barrier: PET lub zog

Thaum PP ua tau zoo raws li qhov thaiv dej noo, PET muaj qhov zoo sib txawv: cov pa oxygen zoo dua. Cov ntaub ntawv ntsuas tib yam qhia tau hais tias PET cov pa oxygen xa mus yog kwv yees li 23 npaug qis dua BOPP's . Qhov no ua rau PET qhov kev xaiv zoo tshaj plaws rau cov ntawv thov uas cov pa oxygen nkag mus yog qhov kev txhawj xeeb tseem ceeb - xws li cov ntim khoom noj uas xav tau lub neej ntev.

2.2 Cov ntsiab lus ntawm Barrier

Qhov kev sib raug zoo ntawm kev ya raws thiab oxygen barrier yog ib qho kev paub zoo hauv kev tshawb fawb txog kev ntim khoom polymer-cov ntaub ntawv sib txawv zoo ntawm ntau hom kev tiv thaiv.

3. Qhov cuam tshuam rau kev xaiv PP Strap

3.1 Thaum Moisture Barrier Matters rau Strapping

Rau feem ntau PP daim ntaub ntawv siv pluaj, noo noo barrier tsis yog thawj qhov kev xaiv. Strapping feem ntau yog siv los tiv thaiv cov khoom thauj ntau dua li muab kev tiv thaiv ntim khoom. Txawm li cas los xij, hauv qee qhov xwm txheej, kev tiv thaiv dej noo yuav cuam tshuam:

• Kev cia sab nraum zoov: PP pluaj lub hauv paus ntawm noo noo tiv thaiv pab tswj kev ua haujlwm hauv cov av ntub lossis ntub dej

• Kev siv cov hlua txias: Cov dej noo los ntawm condensation tuaj yeem cuam tshuam txoj hlua khi thiab kev ncaj ncees

• Agricultural ntim: Hay, paj rwb, thiab lwm yam khoom ua liaj ua teb feem ntau khaws cia sab nraum zoov

Jushuo Packaging's PP pluaj muaj qhov tsis muaj dej tsis zoo uas yog ib feem ntawm nws cov khoom siv, ua rau nws tsim nyog rau cov kev thov no.

3.2 Kev Taw Qhia Kev Xaiv Khoom

Rau cov kws ntim khoom xaiv cov khoom siv strapping:

Cov ntsiab lus

Puas yog PP zoo dua li PET raws li kev tiv thaiv noo noo? Cov ntaub ntawv lees paub: yog, PP muab kev ua haujlwm zoo ntawm cov dej noo thaiv kev ua haujlwm. BOPP zaj duab xis cov dej vapor kis tau tus nqi yog kwv yees li 5.4 npaug qis dua PET's, ua rau PP tus yeej meej rau cov ntawv thov uas xav tau kev tiv thaiv dej noo. Txawm li cas los xij, daim duab thaiv yog ntau dua nuanced: PET excels raws li cov pa barrier, nrog kev ua haujlwm kwv yees li 23 npaug zoo dua PP.

Rau cov ntawv thov strapping, noo noo barrier feem ntau tsis yog thawj qhov kev xaiv, tab sis PP lub hauv paus ntawm noo noo tsis kam - los ntawm nws cov non-polar hydrocarbon qauv - ua rau nws haum rau sab nraum zoov cia, kev ua liaj ua teb, thiab huab cua puag ncig. Thaum xaiv ntawm PP thiab PET pluaj, xav txog qhov ua tiav daim ntawv thov: kev ya raws, kev thauj khoom hnyav, thiab seb puas muaj oxygen barrier kuj yog ib qho kev txiav txim siab.

Jushuo Ntim muab cov kev daws teeb meem PP pluaj nrog cov dej noo tsis zoo rau cov ntawv thov. Peb 5 PP cov kab ntau lawm nrog 20,000 tons txhua xyoo muaj peev xwm ua kom zoo ib yam thoob plaws txhua qhov tshwj xeeb. Peb txhawb cov neeg siv khoom los ntawm kev xaiv cov khoom siv raws li cov kev xav tau ntawm daim ntawv thov, suav nrog kev ntsuam xyuas dej noo.

Yog tias koj xav tau kev pab xaiv cov khoom siv strapping txoj cai rau koj daim ntawv thov dej-rhiab, thov xa email rau sales@jushuopackaging.com , thiab peb pab neeg tshaj lij yuav muab kev txhawb nqa ib leeg.

Cov ntaub ntawv

1. SpecialChem. 'Lub Sijhawm hauv Oriented Polypropylene (OPP) - Cov Khoom Siv Khoom Sib Piv.' SpecialChem.com , 2025.

2. Toray Industries. 'Biaxially Oriented Polypropylene Film – Technical Data Sheet.' Toray.com , 2024.

3. ASTM International. 'ASTM F1249 - Txoj Kev Ntsuas Tus Txheej Txheem rau Dej Vapor Kis Tus Nqi Los Ntawm Yas Zaj Duab Xis.' ASTM.org , 2020.

4. European Committee rau Standardization. TS EN 13394: 2001 - Ntim - Strapping - Specifications rau Polypropylene Strapping.' CEN.eu , 2001.

5. International Organization for Standardization. 'ISO 9001: 2015 - Kev Tswj Xyuas Kev Tswj Xyuas Zoo - Cov Kev Xav Tau.' ISO.org , 2015.