Pub Date : 2017-02-01DOI: 10.17576/MJAS-2017-2101-20
N. A. Abdullah, M. S. So'aib, J. Krishnan
{"title":"Kesan pengkalsinan suhu ke atas komposit ZnO/TiO2 untuk menyingkirkan fenol melalui fotopemangkin di bawah cahaya nampak","authors":"N. A. Abdullah, M. S. So'aib, J. Krishnan","doi":"10.17576/MJAS-2017-2101-20","DOIUrl":"https://doi.org/10.17576/MJAS-2017-2101-20","url":null,"abstract":"","PeriodicalId":22844,"journal":{"name":"The Malaysian Journal of Analytical Sciences","volume":"33 1","pages":"173-181"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84682425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-01DOI: 10.17576/MJAS-2017-2101-13
Norazuwana Shaari, Siti Kartom Kamarudin
{"title":"Kajian pencirian bagi membran elektrolit polimer berasaskan sodium alginat/sulfonat grafin oksida untuk sel bahan api metanol langsung","authors":"Norazuwana Shaari, Siti Kartom Kamarudin","doi":"10.17576/MJAS-2017-2101-13","DOIUrl":"https://doi.org/10.17576/MJAS-2017-2101-13","url":null,"abstract":"","PeriodicalId":22844,"journal":{"name":"The Malaysian Journal of Analytical Sciences","volume":"12 1","pages":"113-118"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87697021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-01DOI: 10.17576/MJAS-2017-2101-21
E. A. Almaamary, S. Abdullah, Hassimi Abu Hasan, R. Rahim, M. Idris
{"title":"Rawatan metilena biru dalam air sisa menggunakan Scirpus grossus","authors":"E. A. Almaamary, S. Abdullah, Hassimi Abu Hasan, R. Rahim, M. Idris","doi":"10.17576/MJAS-2017-2101-21","DOIUrl":"https://doi.org/10.17576/MJAS-2017-2101-21","url":null,"abstract":"","PeriodicalId":22844,"journal":{"name":"The Malaysian Journal of Analytical Sciences","volume":"68 1","pages":"182-187"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76736023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-01DOI: 10.17576/MJAS-2017-2101-30
Faezah Esa, Norliza Abd. Rahman, Mohd Sahaid Kalil, Siti Masrinda Tasirin
{"title":"Kesan Goncangan ke atas Penghasilan Selulosa Bakteria oleh Acetobacter xylinum 0416 Melalui Fermentasi Air Kelapa Tua","authors":"Faezah Esa, Norliza Abd. Rahman, Mohd Sahaid Kalil, Siti Masrinda Tasirin","doi":"10.17576/MJAS-2017-2101-30","DOIUrl":"https://doi.org/10.17576/MJAS-2017-2101-30","url":null,"abstract":"","PeriodicalId":22844,"journal":{"name":"The Malaysian Journal of Analytical Sciences","volume":"65 1","pages":"261-266"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75015421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-01DOI: 10.17576/MJAS-2017-2101-11
F. Al-Qaim, Siti Hasmah Jusof, M. Abdullah, Z. Mussa, N. Tahrim, W. Khalik, M. Othman
{"title":"Penentuan kafien di permukaan air mengunakan pengekstrakan fasa pepejal dan kromatografi cecair prestasi tinggi","authors":"F. Al-Qaim, Siti Hasmah Jusof, M. Abdullah, Z. Mussa, N. Tahrim, W. Khalik, M. Othman","doi":"10.17576/MJAS-2017-2101-11","DOIUrl":"https://doi.org/10.17576/MJAS-2017-2101-11","url":null,"abstract":"","PeriodicalId":22844,"journal":{"name":"The Malaysian Journal of Analytical Sciences","volume":"33 1","pages":"95-104"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76892985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-02-01DOI: 10.17576/MJAS-2017-2101-24
A. Azarpour, S. R. Alwi
{"title":"Ramalan kadar penyahaktifan mangkin industri menggunakan model prinsip pertama dan data operasi","authors":"A. Azarpour, S. R. Alwi","doi":"10.17576/MJAS-2017-2101-24","DOIUrl":"https://doi.org/10.17576/MJAS-2017-2101-24","url":null,"abstract":"","PeriodicalId":22844,"journal":{"name":"The Malaysian Journal of Analytical Sciences","volume":"30 10 1","pages":"204-212"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83122790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-01-01DOI: 10.17576/MJAS-2017-2103-25
Mohd Amin Khairatun Najwa, Pratheep K Annamalai, Darren J. Martin
Melt compounding processing approach for incorporating cellulose nanocrystals (CNC) into thermoplastic polyurethane (TPU) has not well been explored. This is primarily due to the poor thermal stability and dispersibility of CNCs. As they are typically obtained from sulphuric acid hydrolysis, they give rise to degradation and discolouration of the extruded nanocomposites. The investigation of this research demonstrates sulphuric acid hydrolysis (CNC-S), phosphoric acid hydrolysis (CNC-P) and a novel non-hydrolytic high energy bead milling method (CNC-MC) into a polyether based thermoplastic polyurethane via melt compounding using twin screw extruder. The TPU film incorporated with CNC-S obviously shows the sign of CNC degradation where TPU film was changed to brown colour. The tensile strength of TPU reinforced with CNC-S, CNC-P and CNC-MC shows 18%, 16% and 14% of improvement at CNC loading of 0 to 1 wt.% upon host polymer. CNCs isolated via mild acid hydrolysis and mechanical milling methods, can be easily processed via large scale melt-processing techniques for reinforcing thermoplastic polyurethane without affecting their physical appearance and elastic properties.
{"title":"Cellulose nanocrystals with enhanced thermal stability reinforced thermoplastic polyurethane","authors":"Mohd Amin Khairatun Najwa, Pratheep K Annamalai, Darren J. Martin","doi":"10.17576/MJAS-2017-2103-25","DOIUrl":"https://doi.org/10.17576/MJAS-2017-2103-25","url":null,"abstract":"Melt compounding processing approach for incorporating cellulose nanocrystals (CNC) into thermoplastic polyurethane (TPU) has not well been explored. This is primarily due to the poor thermal stability and dispersibility of CNCs. As they are typically obtained from sulphuric acid hydrolysis, they give rise to degradation and discolouration of the extruded nanocomposites. The investigation of this research demonstrates sulphuric acid hydrolysis (CNC-S), phosphoric acid hydrolysis (CNC-P) and a novel non-hydrolytic high energy bead milling method (CNC-MC) into a polyether based thermoplastic polyurethane via melt compounding using twin screw extruder. The TPU film incorporated with CNC-S obviously shows the sign of CNC degradation where TPU film was changed to brown colour. The tensile strength of TPU reinforced with CNC-S, CNC-P and CNC-MC shows 18%, 16% and 14% of improvement at CNC loading of 0 to 1 wt.% upon host polymer. CNCs isolated via mild acid hydrolysis and mechanical milling methods, can be easily processed via large scale melt-processing techniques for reinforcing thermoplastic polyurethane without affecting their physical appearance and elastic properties.","PeriodicalId":22844,"journal":{"name":"The Malaysian Journal of Analytical Sciences","volume":"1 1","pages":"754-761"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86380044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-01-01DOI: 10.17576/MJAS-2017-2103-04
Shamsuddin Roshatiara, Muhammad Ameerullah Sahudin, Nur Hasyareeda Hassan, Nurul Huda Abd Karim
{"title":"Interaksi antara kompleks N, N’-bis [4-[1-(2-hidroksietoksi)] saliksalidin]-fenildiamina-nikel(II) dan kuprum(II) bersama DNA G-kuadrupleks)","authors":"Shamsuddin Roshatiara, Muhammad Ameerullah Sahudin, Nur Hasyareeda Hassan, Nurul Huda Abd Karim","doi":"10.17576/MJAS-2017-2103-04","DOIUrl":"https://doi.org/10.17576/MJAS-2017-2103-04","url":null,"abstract":"","PeriodicalId":22844,"journal":{"name":"The Malaysian Journal of Analytical Sciences","volume":"42 1","pages":"544-551"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84645918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-01-01DOI: 10.17576/MJAS-2017-2103-02
Ismail Zaitizila, Norsyahidah Mohd Hidzir, Nur Ain Mohd Radzali, I. A. Rahman
{"title":"Pencantuman teraruh sinaran gama asid asetik ke atas regangan membran poli(tetrafluoraetilena) bagi aplikasi biobahan","authors":"Ismail Zaitizila, Norsyahidah Mohd Hidzir, Nur Ain Mohd Radzali, I. A. Rahman","doi":"10.17576/MJAS-2017-2103-02","DOIUrl":"https://doi.org/10.17576/MJAS-2017-2103-02","url":null,"abstract":"","PeriodicalId":22844,"journal":{"name":"The Malaysian Journal of Analytical Sciences","volume":"13 1","pages":"527-534"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80588598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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