Sharif, Jamaliah and Yunus, Wan Md Zin Wan and Dahlan, Khairul Zaman Hj Mohd and Ahmad, Mansor Hj (2005) Preparation and properties of radiation crosslinked natural rubber/clay nanocomposites. Polymer Testing, 24 . pp. 211-217.
This is the latest version of this item.
Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.
Radiation crosslinking of natural rubber (NR)/clay nanocomposites was studied by using Standard Malaysian Rubber (SMRL) grade natural rubber and sodium montmorillonite (Na-MMT) clay that had been modified with cationic surfactants, dodecyl ammonium chloride (DDA) and octadecylamine ammonium chloride (ODA). The NR/clay nanocomposites were prepared by melt mixing to produce NR/Na-MMT, NR/DDA-MMT and NR/ODA-MMT composites. X-ray diffraction results indicated the intercalation of the NR into silicate nano-size inter-layers for NR/DDA-MMT and NR/ODA-MMT nanocomposites. An optimum electron beam dose of 250 kGy for crosslinking of NR, NR/DDA-MMT and NR/ODA-MMT was determined by gel content and tensile strength measurements. Upon electron beam irradiation, the tensile modulus of the nanocomposites keeps increasing with the increase of clay content up to 10 phr. However, the tensile strength and gel content of the nanocomposites show optimum values at a range of 3.0–5.0 phr clay content. From these results, NR/DDA-MMT shows higher tensile strength, whereas NR/ODA-MMT exhibits higher tensile modulus. The optimum tensile strengths of NR/DDAMMT and NR/ODA-MMT are 12.1 and 9.5 MPa, respectively. TGA studies showed that NR/DDA-MMT and NR/ODA-MMT nanocomposites have higher decomposition temperatures in comparison with the NR/Na-MMT.
|Subjects:||Material Science > Nanostructured materials|
|Deposited On:||08 Apr 2009 02:34|
|Last Modified:||08 Apr 2009 02:34|
Available Versions of this Item
- Preparation and properties of radiation crosslinked natural rubber/clay nanocomposites. (deposited 15 Jan 2009 08:55)
- Preparation and properties of radiation crosslinked natural rubber/clay nanocomposites. (deposited 08 Apr 2009 02:34) [Currently Displayed]
Repository Staff Only: item control page