Development of UHMWPE Modified PP/PET Blends and Their Mechanical and Abrasive Wear Behaviour
IR@AMPRI: CSIR-Advanced Materials and Processes Research Institute, Bhopal
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| Title |
Development of UHMWPE Modified PP/PET Blends and Their Mechanical and Abrasive Wear Behaviour
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| Creator |
Chand, N
Naik, A.M. Khaira, H.K. |
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| Subject |
Polymer Matrix Composites
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| Description |
In this study, polypropylene and polyethylene terephthalate blend were modified by incorporating different percentages of ultrahigh molecular weight polyethylene (UHMWPE) ranging from 1 to 5 phr. Modified blends were prepared by melt mixing the PP/PET blend and UHMWPE. Ultimate tensile strength of UHMWPE filled blend was determined at 10, 20, 50, and 100 mm/min cross head speeds of testing. It was found that increase of cross head speed from 10 to 100 mm/min increases the tensile strength of PP/PET/UHMWPE blends. Maximum ultimate tensile strength is exhibited by the blend containing 2 phr UHMWPE. Breaking strain of the UHMWPE modified and unmodified PP/PET blend increased with the increase of cross head speed due to the highly entangled chain structure of UHMWPE. Shore A hardness of the filled blends also increased from 341 to 356, which is highest for 2 phr UHMWPE. High stress abrasive wear of UHMWPE modified blend was determined by using Suga abrasion tester, model NUS-1 Japan. Wear rate of the PP/PET(90/10) blends having 1, 2, and 5 phr of UHMWPE was determined at different loads such as 1, 3, 5, and 7 N and sliding distances from 6.4 m to 25.6 m. Wear rate values show that UHMWPE has prominent effect on abrasive wear of PP/PET blends. Addition of 2 and 5 phr UHMWPE improved the wear resistance of PP/PET blends at different loads, which has been explained on the basis of improved bonding as compared with pure PP/PET blend and increased hardness. Maximum abrasive wear rate reduction was achieved by adding 2 phr UHMWPE in PP/PET(90/10) blend. POLYM. COMPOS. 28:267–272, 2007. © 2007 Society of Plastics Engineers
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| Publisher |
Wiley Online Library
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| Date |
2007
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| Type |
Article
PeerReviewed |
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| Identifier |
Chand, N and Naik, A.M. and Khaira, H.K. (2007) Development of UHMWPE Modified PP/PET Blends and Their Mechanical and Abrasive Wear Behaviour. POLYMER COMPOSITES. ISSN 0272-8397
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| Relation |
http://ampri.csircentral.net/976/
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