Yusrina Mat Daud
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Yusrina Mat Daud
Official Name
Yusrina, Mat Daud
Alternative Name
Daud, Yusrina Mat
Mat Daud, Yusrina
Daud, Y. M.
Yusrina, M. D.
Main Affiliation
Scopus Author ID
57210919867
Researcher ID
ABF-5167-2020

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  • Publication
    Asas Polimer
    (Penerbit Universiti Malaysia Perlis, 2010)
    Che Mohd Ruzaidi Ghazali
    ;
    Sinar Arzuria Adnan
    ;
    Yusrina Mat Daud
    ;
    Luqman Musa
    ;
    Mohd. Mustafa Al Bakri Abdullah
    Buku asas polimer merupakan sebuah buku yang membincangkan beberapa perkara asas yang utama dalam bidang polimer. Kebanyakan kita mengetahui tentang polimer tetapi tidak pada asas dan sifat semulajadi bahan polimer tersebut. Polimer kini lebih bernilai dan diperlukan dalam bidang binaan, angkasa lepas, komunikasi, pembuatan, pengangkutan, perubatan dan lain-lain keperluan harian. Polimer yang wujud secara semulajadi termasuklah bahan yang kita guna sebagai tar, syelek, getah pokok dan lain-lain menuntut kepada kita untuk memahami dengan lebih jelas ciri-ciri dan sifat bahan polimer. Buku ini dapat memenuhi keperluan dan minat terutamanya pelajar-pelajar untuk memahami dengan lebih mendalam lagi mengenai asas-asas dan sifat-sifat bahan polimer. Tajuk-tajuk yang dibincangkan di dalam buku ini disusun dan dioleh degan cara yang mudah untuk pengajaran dan pembelajaran tentang asas-asas polimer. Buku ini sesuai dijadikan sebagai bahan rujukan asas pelajar-pelajar kejuruteraan bahan, kejuruteraan polimer, teknologi polimer dan sains. Ia juga merangkumi beberapa subjek asas yang penting dalam bidang polimer termasuk kimia polimer, struktur fizikal polimer, reologi polimer, aplikasi, sifat dan pengujian polimer.
  • Publication
    Tensile Properties of Polyethylene Composites Based Kaolin Geo-Filler
    ( 2020-11-24)
    Lun Loh Zhen
    ;
    Yusrina Mat Daud
    ;
    Zainal F.F.
    ;
    Farah Farhana Zainal
    ;
    Mohammad Firdaus Abu Hashim
    ;
    Hartati
    ;
    Shern Tan Wei
    The current work studies the tensile properties of polyethylene composites-based kaolin geo-filler. Polyethylene composites was prepared based on kaolin geo-filler at different loading content varies from 0,2,4,6,8 and 10 wt%. The optimum results were compared with polyethylene composites based on raw kaolin to study the effect both filler on tensile properties. Tensile test was conducted according to ASTM D638. Based on these research studies, the use of kaolin geo-filler is effectively improved the tensile properties of polyethylene as compared to the raw kaolin filler. As the result, 8% of kaolin geo-filler content demonstrate the optimum formulation to enhance the tensile properties of polyethylene composites.
      3  24
  • Publication
    Morphological analysis on crosslinked plasticized starch filled with microcrystalline cellulose
    ( 2021-05-03)
    Foong J.Y.
    ;
    Mohamad Kahar Ab Wahab
    ;
    Mohd Fairul Sharin Abdul Razak
    ;
    Yusrina Mat Daud
    This work investigates the effect of the photo and peroxide crosslinked thermoplastic starch on the morphological properties of thermoplastic starch (TPS) / microcrystalline cellulose (MCC) films. Granulated starch will converted into thermoplastic like in the presence of glycerol as plasticizer. The amount of MCC filler carried out in this research is 0 %, 3 %, 6 %, 9 % and 12 % of the dry weight of starch. The morphological properties of photo-crosslinked TPS and peroxide crosslinked TPS were were analysed by using scanning electron microscope (SEM) and optical microscope for soil burial and weathering test. Each formulation has undergone tensile test to study their stress-strain properties and the optimum formula is obtained for subsequent studies. The increasing MCC loading increase the tensile properties of the TPS/MCC up to 6% MCC as support by morphology study. The increament in tensile strength was confirmed by the SEM study that showed better dispersion of MCC in the TPS matrix and exhibited coarser surfaces as compared to uncrosslinked counterpart. The TPS/MCC films also can last more than 20 days under soil burial test. The thermoplastic starch films will start to degrade after placed under normal weathering conditions for 20 days while the addition of rainfall will also accelerate the degradation process.
      1
  • Publication
    Flexural properties of polyethylene composites based kaolin geo-filler
    ( 2020-11-02)
    Yusrina Mat Daud
    ;
    Shern Tan Wei
    ;
    Farah Farhana Zainal
    ;
    Mohammad Firdaus Abu Hashim
    ;
    Lun Loh Zhen
    ;
    Hasri
    ;
    Hartati
    Polyethylene has wide applications as a single matrix, however it has a weakness such as low mechanical properties. Kaolin is based mineral filler that offered mechanical performance, it has been used as a cost-effective reinforcing filler for many thermoplastic materials. However, the incorporation of kaolin into thermoplastic often requires the use of compatibilizer or surface treatment to increase the mechanical performance of the composites. In this study, kaolin has been utilized as geo-filler through geopolymerization process by alkaline solution to increase the interfacial adhesion of materials in the composite. Kaolin geo-filler was found having compact structure and to improve the mechanical properties at lower filler loading. Flexural test according to ASTM D790 was performed whereas Scanning Electron Microscopy was used to observe the fracture surface. The testing and micrography are compared with the properties of raw kaolin filler on polyethylene composite. The results found that 8 % of kaolin geo-filler content is optimal for polyethylene composite and show better flexural properties.
      10  3
  • Publication
    Interaction of Geopolymer Filler and Alkali Molarity Concentration towards the Fire Properties of Glass-Reinforced Epoxy Composites Fabricated Using Filament Winding Technique
    ( 2022-09-01)
    Mohammad Firdaus Abu Hashim
    ;
    Meor Ahmad Faris Meor Ahmad Tajudin
    ;
    Mydin M.A.O.
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Yusrina Mat Daud
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Farah Farhana Zainal
    ;
    Saloma
    ;
    Muhammad Faheem Mohd. Tahir
    ;
    Heah Cheng Yong
    ;
    Khorami M.
    This paper aims to find out the effect of different weight percentages of geopolymer filler in glass-reinforced epoxy pipe, and which can achieve the best mechanical properties and adhesion between high calcium pozzolanic-based geopolymer matrices. Different weight percentages and molarities of epoxy hardener resin and high calcium pozzolanic-based geopolymer were injected into the glass fiber. By manually winding filaments, composite samples were produced, and they were then allowed to cure at room temperature. To determine how well the geopolymer matrices adhere to the fiber reinforcement, the microstructure of the composites’ surfaces and perpendicular sections were examined. Maximum values of compressive strength and compressive modulus were 94.64 MPa and 2373.58 MPa, respectively, for the sample with a weight percentage of filler loading of 30 wt% for an alkali concentration of 12 M. This is a relatively wide range of geopolymer weight percentage of filler loading from 10 wt% to 40 wt%, at which we can obtain high compressive properties. By referring to microstructural analysis, adhesion, and interaction of the geopolymer matrix to glass fiber, it shows that the filler is well-dispersed and embedded at the fiber glass, and it was difficult to determine the differences within the range of optimal geopolymer filler content. By determining the optimum weight percent of 30 wt% of geopolymer filler and microstructural analysis, the maximum parameter has been achieved via analysis of high calcium pozzolanic-based geopolymer filler. Fire or elevated temperature represents one of the extreme ambient conditions that any structure may be exposed to during its service life. The heat resistance or thermal analysis between glass-reinforced epoxy (GRE) pipe and glass-reinforced epoxy pipe filled with high calcium pozzolanic-based geopolymer filler was studied by investigating burning tests on the samples, which shows that the addition of high calcium pozzolanic-based geopolymer filler results in a significant reduction of the melted epoxy.
      1
  • Publication
    Mechanical effects on different solid to liquid ratio of geopolymer filler in epoxy resin
    ( 2021)
    Mohammad Firdaus Abu Hashim
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Yusrina Mat Daud
    ;
    Meor Ahmad Faris bin Meor Ahmad Tajudin
    ;
    Saloma Hasyim
    ;
    Muhammad Taqiyuddin Lokman
    ;
    Farah Farhana Zainal
    ;
    Mohd. Mustafa Al Bakri Abdullah
    Geopolymer is formed from the alkali activation of materials rich in Si and Al content with the addition of a silicate solution to enhance the properties of the materials. This paper presents research on the mechanical properties of fly ash-based geopolymer filler in epoxy resin by varying different solid to liquid ratios using sodium hydroxide and sodium silicate as the alkaline activator. However, the common problem observed from the solid to liquid ratio is the influence of curing time and compressive strength of geopolymer to have the best mechanical property. The mix design for geopolymers of solid to liquid ratio is essential in developing the geopolymer’s mechanical strength. A series of epoxy filled with fly ash-based geopolymer materials with different solid to liquid ratio, which is prepared from 0.5 to 2.5 solid to liquid ratio of alkaline activator. The tensile strength and flexural strength of the epoxy filled with fly ash-based geopolymer materials is determined using Universal Testing Machine under tensile and flexural mode. It was found that the optimum solid to liquid ratio is 2.0, with the optimum tensile and flexural strength value. However, both the tensile and flexural properties of epoxy filled with fly ash-based geopolymer suddenly decrease at a 2.5 solid to liquid ratio. The strength is increasing with the increasing solid to liquid ratio sample of geopolymer filler content.
      2  8
  • Publication
    Effect of winding speed in epoxy glass composites for new fabricated filament winding machin
    ( 2020-11-02)
    Mohammad Firdaus Abu Hashim
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Yusrina Mat Daud
    ;
    Farah Farhana Zainal
    ;
    Meor Ahmad Faris Meor Ahmad Tajudin
    ;
    Si H.M.
    ;
    Si H.S.
    ;
    Razani, Mohamad Syazwan Mohamad
    The production of the glass fiber reinforced epoxy pipes is produced by filament winding process due to of its low costs, convenient and easy to install. The main objectives of this research is to optimize new fabricated filament winding machine and investigate the effect of winding speed. The problems for a new fabricated filament winding machine that must be optimized at first and lack of data for parameter in winding speed. The production by using filament winding process can be produce varieties of products such as tanks, pipes and vessels. The production of glass reinforced epoxy pipes of filament winding process was used different of winding speed levels. The new fabricated filament winding machine have 6 different winding speed that must be tested to get the optimum mechanical strength results. The process was stopped when the thickness of the samples is about 5.5mm wall thickness. The samples were tested with density for physical test and compressive strength for mechanical testing. The optimum winding speed to produce high mechanical strength for this new fabricated filament winding machine is winding speed two and the angle of the winding for speed 2 is 55°. This study, helps to determine winding speed for calibrate new filament winding.
      2  11
  • Publication
    Effect of glycerol as plasticizer on the tensile properties of chitosan / microcrystalline cellulose films
    ( 2021-05-03)
    Lau S.
    ;
    Mohamad Kahar Ab Wahab
    ;
    Yusrina Mat Daud
    The chitosan/microcrystalline cellulose (MCC) film was produced through solution casting with different composition of MCC and the presence of plasticizer. This chitosan /MCC film is a biodegradable polymer due to all the ingredient was natural resources. MCC and chitosan can be found abundantly in the earth, thus, can be obtained easily. One testing was conducted which was tensile test. The optimum ratio of chitosan/MCC was 97:3 (chitosan:MCC). At this ratio, chitosan /MCC film has the highest tensile strength which was 14.73 MPa without adding any plasticizer. By the addition of plasticizer, properties of chitosan /MCC film was improved. Glycerol was used in chitosan /MCC film as plasticizer. Higher tensile strength and elongation at break follow by lower Young's modulus were the result showing that with the addition of glycerol, their film properties were able to be enhanced. About 13.57% increment in tensile strength and 47.66% in elongation at break of optimum ratio for plasticized chitosan/MCC films compared to unplasticized films.
      1
  • Publication
    Sifat bahan plastik
    ( 2011)
    Yusrina Mat Daud
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Sinar Arzuria Adnan
    ;
    Luqman Musa
    Buku ini secara khusus mengutarakan dengan lengkap tentang sifat dan ciri bahan plastik melalui beberapa bab dalam buku ini dan kaedah dan prinsip pengujian serta perincirian bahan plastik. Buku ini boleh membantu pelajar dan pembaca dalam mengenalpasti perbezaan jenis-jenis bahan plastik dan memahami konsep hubung kait di antara struktur dan sifat-sifat bahan plastik.
      4  294
  • Publication
    Effect of hybrid layered silicates/geopolymer fillers on properties of epoxy composites
    ( 2018)
    Yusrina Mat Daud
    Layered silicates are commonly used as filler materials in polymers including thermoset to improve the matrix’s mechanical, physical and barrier properties. Montmorillonite belongs to the class of layered silicates which has great potential as filler due to its high surface area and aspect ratio with thickness of each individual layer is about 1 nm. However, the use of montmorillonite as single filler has limitation in terms of assisting the matrix to achieve high mechanical performance when subjected to various mechanical loads (compression and flexural). Therefore, in this thesis, the use of hybrid fillers was investigated using organo-montmorillonite and geopolymer fillers to obtain epoxy based composite material with greater combination properties. Raw materials geopolymer filler used in this study is from Saudi Arabia. Based on characterization of these minerals resources, it indicates the suitability of being a geopolymer filler. The preparation of the composites and hybrid composites was conducted by mechanical shear mixing method at room temperature. The effect of the organo-montmorillonite and hybrid organo montmorillonite/geopolymer fillers addition on the epoxy was thoroughly studied by compressive and flexural tests, thermal analysis, X-ray diffraction analysis and water absorption test. Epoxy/organo-montmorillonite composite was prepared with varies organo-montmorillonite loading from 1 phr to 7 phr. Results demonstrated that optimum loading of organo-montmorillonite in epoxy was achieved at 3 phr loading. This finding has leads to development of hybrid composites using optimum organo-montmorillonite content and five types of geopolymer fillers (fly ash, kaolin, white clay, pozolonite and silica sand) with loading from 1 phr to 7 phr. However, among five types of geopolymer fillers, kaolin has presented the best compressive and flexural properties at about 36.65 MPa and 20.18 MPa. The data was supported by other analysis such thermogravimetry, X-ray diffraction, and dynamic mechanical analyses. Based on these research outcomes, it can be highlighted that the use of hybrid organo-montmorillonite/geopolymer fillers can more efficiently improve the strength, thermal stability and durability of the epoxy as compared to the single organo-montmorillonite filler. These improvement has led to the exploration of exciting fields and creating novel for the production of hybrid layered silicates/geopolymer filler in epoxy composites.
      1  9