Oxygen-barrier films based on low-density polyethylene/ ethylene vinyl alcohol/ polyethylene-grafted maleic anhydride compatibilizer
In this research, high oxygen-barrier films were organized based on low-density polyethylene (LDPE)/ ethylene vinyl alcohol (EVOH)/ polyethylene-grafted maleic anhydride (LDPE-g-MA) compatibilizer. The effects of 10–30 wt. % EVOH and 0–10 wt. % LDPE-g-MA loadings on the properties of final films wer...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Iran Polymer and Petrochemical Institute
2016-01-01
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| Series: | Polyolefins Journal |
| Subjects: | |
| Online Access: | http://poj.ippi.ac.ir/article_1398_182d39b8385262536d0045158097567c.pdf |
| _version_ | 1819159485996859392 |
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| author | Mohammadreza Rahnama Abdulrasoul Oromiehie Shervin Ahmadi Ismaeil Ghasemi |
| author_facet | Mohammadreza Rahnama Abdulrasoul Oromiehie Shervin Ahmadi Ismaeil Ghasemi |
| author_sort | Mohammadreza Rahnama |
| collection | DOAJ |
| description | In this research, high oxygen-barrier films were organized based on low-density polyethylene (LDPE)/ ethylene vinyl alcohol (EVOH)/ polyethylene-grafted maleic anhydride (LDPE-g-MA) compatibilizer. The effects of 10–30 wt. % EVOH and 0–10 wt. % LDPE-g-MA loadings on the properties of final films were evaluated. The morphology of specimens was observed by using scanning electron microscopy (SEM). Oxygen transfer rate (OTR) results revealed that the addition of EVOH up to 30 wt. % to neat LDPE could significantly decrease oxygen permeability. The LDPE-g-MA which increased the permeability needed to be fine-tuned its amount based on the EVOH loading in different samples. The experimental results revealed that the addition of 30 wt. % EVOH to the LDPE matrix without adding LDPE-g-MA gave the best oxygen barrier properties. Elastic modulus and tensile strength increased with incorporation of EVOH and LDPE-g-MA into the polyethylene matrix. On the other hand, elongation-at-break decreased with the addition of EVOH and increased with the introduction of compatibilizer to the samples. Incorporation of EVOH and LDPE-g-MA into the LDPE matrix and increasing their amounts led to higher storage modulus and zero shear rate viscosity, but lowered the frequency value at the intersection point of storage modulus (G') and loss modulus (G''). The only exception was that in the samples without compatibilizer, the increase in the EVOH content resulted in a lower zero shear rate viscosity and a higher frequency value at the intersection point of G' and G''. |
| first_indexed | 2024-12-22T16:41:19Z |
| format | Article |
| id | doaj.art-584496a5534f401c9b565b76071dede5 |
| institution | Directory Open Access Journal |
| issn | 2322-2212 2345-6868 |
| language | English |
| last_indexed | 2024-12-22T16:41:19Z |
| publishDate | 2016-01-01 |
| publisher | Iran Polymer and Petrochemical Institute |
| record_format | Article |
| series | Polyolefins Journal |
| spelling | doaj.art-584496a5534f401c9b565b76071dede52022-12-21T18:19:50ZengIran Polymer and Petrochemical InstitutePolyolefins Journal2322-22122345-68682016-01-014113714710.22063/poj.2016.13981398Oxygen-barrier films based on low-density polyethylene/ ethylene vinyl alcohol/ polyethylene-grafted maleic anhydride compatibilizerMohammadreza Rahnama0Abdulrasoul Oromiehie1Shervin Ahmadi2Ismaeil Ghasemi3Department of Plastics Engineering, Iran Polymer and Petrochemical Institute, P.O.Box14975/112, Tehran, I.R. IranDepartment of Plastics Engineering, Iran Polymer and Petrochemical Institute, P.O.Box14975/112, Tehran, I.R. IranDepartment of Plastics Engineering, Iran Polymer and Petrochemical Institute, P.O.Box14975/112, Tehran, I.R. IranDepartment of Plastics Engineering, Iran Polymer and Petrochemical Institute, P.O.Box14975/112, Tehran, I.R. IranIn this research, high oxygen-barrier films were organized based on low-density polyethylene (LDPE)/ ethylene vinyl alcohol (EVOH)/ polyethylene-grafted maleic anhydride (LDPE-g-MA) compatibilizer. The effects of 10–30 wt. % EVOH and 0–10 wt. % LDPE-g-MA loadings on the properties of final films were evaluated. The morphology of specimens was observed by using scanning electron microscopy (SEM). Oxygen transfer rate (OTR) results revealed that the addition of EVOH up to 30 wt. % to neat LDPE could significantly decrease oxygen permeability. The LDPE-g-MA which increased the permeability needed to be fine-tuned its amount based on the EVOH loading in different samples. The experimental results revealed that the addition of 30 wt. % EVOH to the LDPE matrix without adding LDPE-g-MA gave the best oxygen barrier properties. Elastic modulus and tensile strength increased with incorporation of EVOH and LDPE-g-MA into the polyethylene matrix. On the other hand, elongation-at-break decreased with the addition of EVOH and increased with the introduction of compatibilizer to the samples. Incorporation of EVOH and LDPE-g-MA into the LDPE matrix and increasing their amounts led to higher storage modulus and zero shear rate viscosity, but lowered the frequency value at the intersection point of storage modulus (G') and loss modulus (G''). The only exception was that in the samples without compatibilizer, the increase in the EVOH content resulted in a lower zero shear rate viscosity and a higher frequency value at the intersection point of G' and G''.http://poj.ippi.ac.ir/article_1398_182d39b8385262536d0045158097567c.pdfPolymer blends and alloysBarriercompatibilizerOxygen permeabilitypolyethylene |
| spellingShingle | Mohammadreza Rahnama Abdulrasoul Oromiehie Shervin Ahmadi Ismaeil Ghasemi Oxygen-barrier films based on low-density polyethylene/ ethylene vinyl alcohol/ polyethylene-grafted maleic anhydride compatibilizer Polyolefins Journal Polymer blends and alloys Barrier compatibilizer Oxygen permeability polyethylene |
| title | Oxygen-barrier films based on low-density polyethylene/ ethylene vinyl alcohol/ polyethylene-grafted maleic anhydride compatibilizer |
| title_full | Oxygen-barrier films based on low-density polyethylene/ ethylene vinyl alcohol/ polyethylene-grafted maleic anhydride compatibilizer |
| title_fullStr | Oxygen-barrier films based on low-density polyethylene/ ethylene vinyl alcohol/ polyethylene-grafted maleic anhydride compatibilizer |
| title_full_unstemmed | Oxygen-barrier films based on low-density polyethylene/ ethylene vinyl alcohol/ polyethylene-grafted maleic anhydride compatibilizer |
| title_short | Oxygen-barrier films based on low-density polyethylene/ ethylene vinyl alcohol/ polyethylene-grafted maleic anhydride compatibilizer |
| title_sort | oxygen barrier films based on low density polyethylene ethylene vinyl alcohol polyethylene grafted maleic anhydride compatibilizer |
| topic | Polymer blends and alloys Barrier compatibilizer Oxygen permeability polyethylene |
| url | http://poj.ippi.ac.ir/article_1398_182d39b8385262536d0045158097567c.pdf |
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