Structural, thermal and physico‑chemical properties of high density polyethylene/natural rubber/modified cassava starch blends
t The utilization of cassava starch as one of the components in high density polyethylene (HDPE)/natural rubber (NR) blends were investigated. The true challenge in producing new materials based on natural resources is to design materials that could level the mechanical properties of existing c...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Springer International Publishing AG. Part of Springer Nature.
2017
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/55343/ http://irep.iium.edu.my/55343/ http://irep.iium.edu.my/55343/ http://irep.iium.edu.my/55343/1/10.1007_s13726-017-0507-3.pdf http://irep.iium.edu.my/55343/7/55343-Structural%2C%20thermal%20and%20physico-chemical%20properties%20of%20high%20density%20polyethylene_SCOPUS.pdf |
| Summary: | t The utilization of cassava starch as one of the
components in high density polyethylene (HDPE)/natural
rubber (NR) blends were investigated. The true challenge
in producing new materials based on natural resources is
to design materials that could level the mechanical properties
of existing conventional polymers. In this study,
we have focused on characterizing the HDPE/NR blends
incorporated with cassava starch in the form of granulates
(native and silanized) as well as plasticized starch. Cassava
starch acted as a biodegradation component in the
HDPE/NR blends and the incorporation of cassava starch
reduced thermal stability and the degree of crystallinity
in general. Several series of cassava starch modifications
were performed in order to improve the final properties of
the blends. Cassava starch was treated with a silane coupling
agent, and proved to be effective in improving tensile
strength. The better dimensional stability and compatibility
between the blend phases were obtained in the silanetreated
cassava starch, as observed in the dynamic mechanical
analysis results. Cassava starch was also converted into
a plasticized form (TPS), and from the results, the degree of TPS adhesion at the inter-phase ofthe HDPE/NR-TPS
blend was clearly improved, as indicated in the morphology
study. Through the comparison of thermal degradation
results, the HDPE/NR/TPS blends proved to be superior to
the HDPE/NR/particulate starch counterparts. |
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