Addition of Microcrystalline Cellulose (MCC) as filler in to Unsaturated Polyester (UPR) polymer can enhanced the properties of the composite. UPR and MCC was prepared using sonication mixing technique at various loading of (2, 4, 6, 8, and 10 wt %) of MCC at a constant of 60 minutes of sonication. UPR and MCC was mixed in a vial bottle and then immersed in sonication bath for the sonication process. Once the sonication completed, the mixture was added with Methyl Ethylene Ketone Peroxide (MEKP) as curing agent, coated on steel plate and was left for curing process of 7 days. The coating was studied for adhesion, mechanical and corrosive properties using pencil hardness, adhesion tape and immersion tests. 4 wt% of loading showed improvement in mechanical properties where form H grade to 4H grade. It is also recorded there are improvement of adhesion test from 1B grade 35-65% pulled out to 4B grade which is less than 5 % pulled. From the immersion test, it shown that 4 wt % of loading has a good corrosion resistant as compared to the control sample. Thus, it was concluded that 4 wt % of loading filler is suitable to be used because it promotes a better mechanical and adhesion properties and also good corrosion resistant compared to other loading percentage.
This study goals are to identify the most comfortable sport hijab from 3 local brands. The selection of the sport hijab from the brand are identify through a preliminary survey distributed to 90 students from Faculty of Sport Science UiTM Negeri Sembilan. From the survey, types of sport hijab and the length of sport hijab are identified. The purchased sport hijab is then gone through the fabric identification and testing included weighing, burning test and water impact penetration test. The fabric for the sport hijab labelled as Sample A is Nylon, Sample B as Polyester and Sample C as Acrylic. Among this, it is found that Sample B gives the best comfort according to all 3 selected respondent who wear the sport hijab in the physical test activities. The physical test activities are done by the 3 participants running on a treadmill for 20 minutes at 7.5km/h with warming up and warming down at 2.5km/h for 2 minutes. The results obtained from the comfort evaluation were then analyzed using Analysis of Variance (ANOVA).
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