scholarly journals Experimental Evaluation of the Curing of Unsaturated Polyester Resin at Various Amounts of Methyl Ethyl Ketone Peroxide, Cobalt Octoate and Porcelain Powder

2020 ◽  
Vol 71 (10) ◽  
pp. 58-66
Author(s):  
Mohamed Farsane ◽  
Lhasnaoui Soufia ◽  
Abdellah Anouar ◽  
Souad Chah ◽  
Said Dagdag ◽  
...  
Keyword(s):  
Methyl Ethyl Ketone ◽  
Experimental Evaluation ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Unsaturated Polyester Resin ◽  
Time Range ◽  
Curing Process ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl ◽  
The Impact

The goal of this research is to investigate the impact of the three parameters on the cure of the unsaturated polyester resin. The obtained values show the influence of each parameter on the cure and hence enables to establish a time-range with regard of the percentage of the components for a good management of the curing process.

scholarly journals Study of Experimental Investigations in the Presence of Ceramic Waste Powder

2021 ◽  
Vol 57 (4) ◽  
pp. 1-12
Author(s):  
Mohamed Farsane ◽  
Abdellah Anouar ◽  
Souad Chah ◽  
Said Dagdag ◽  
Miloud Bouzziri
Keyword(s):  
Methyl Ethyl Ketone ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Unsaturated Polyester Resin ◽  
Experimental Investigations ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl ◽  
Gel Time ◽  
Simple Method ◽  
Ceramic Waste

The paper aims to evaluate the gel time and exotherm temperature properties of the curing of unsaturated polyester resin at various amounts of Methyl ethyl ketone peroxide, cobalt octoate and porcelain powder. The gel time of samples are determined using the simple method, while the exotherm temperature are evaluated using the thermocouple. The variation of these properties is discussed theoretically and experimentally.

scholarly journals Pembuatan Dan Karakterisasi Komposit Bermatriks Poliester Tak Jenuh Dengan Filler Serat Batang Pisang

2015 ◽  
Vol 3 (2) ◽  
Author(s):  
Riris Manihuruk ◽  
Dan Henok Siagian
Keyword(s):  
Methyl Ethyl Ketone ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Unsaturated Polyester Resin ◽  
Methyl Ethyl

Abstrak Penelitian ini menitikberatkan pada pemanfaatan serat batang pisang sebagai bahan baku alternatif dalam pembuatan papan komposit. Penggunaan serat batang pisang bertujuan untuk mengetahui pengaruh variasi fraksi massa dan orientasi serat terhadap karakteristik komposit polimer. Matriks yang digunakan adalah polyester tak jenuh (Unsaturated Polyester Resin) dengan katalis Methyl Ethyl Ketone Peroxida (MEKPo) sebesar 1% dari massa Polyester. Sampel dibuat dengan komposisi antara matriks dengan filler dengan perbandingan: (100:0), (99,5:0,5), (99:1), (98,5:1,5), dan (98:2). Karakterisasi yang dilakukan meliputi pengujian mekanik (uji lentur dan uji tarik) dan pengujian termal (uji kemampuan nyala). Hasil penelitian menunjukkan bahwa penggunaan serat batang pisang sebagai pengisi komposit polimer dapat memberikan peningkatan sifat mekanis dan termal. Dari hasil pengujian mekanik diperoleh kuat tarik tertinggi sebesar 181,64 kgf/cm2 pada komposisi (98,5 : 1,5)% orientasi serat searah dan yang memiliki kuat lentur terbesar adalah serat searah dengan komposisi (99,5:0,5)% yaitu sebesar 119,22 kgf/cm2. Sedangkan untuk kemampuan nyala, penambahan serat tidak memberikan hasil yang optimal, namun komposisi yang bernilai cukup baik yaitu (98,5:1,5)% yaitu sebesar 0,0418 mm/detik. Secara keseluruhan serat dengan orientasi searah adalah pengisi yang memberikan pengaruh positif pada sifat mekanis dan termal komposit. Fraksi massa yang memberikan nilai optimal secara keseluruhan pengujian adalah komposisi (98,5:1,5)% Kata Kunci ; Komposit bermatriks Poliester, serat batang pisang, kuat tarik, kuat lentur,dan  kemampuan nyala.

Tensile and Flexural Properties of Untreated Sisal Fibers Reinforced Unsaturated Polyester Resin Composites

2020 ◽  
Vol 30 ◽  
pp. 73-78
Author(s):  
Shyrlainne Crespo Carvalho de Souza ◽  
Isabella Cristina Boroto Vieira ◽  
Izabela Flois Barbosa ◽  
Natalício Filipe Teixeira Garcia Leão ◽  
Antonio Carlos Barbosa Zancanella ◽  
...  
Keyword(s):  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Flexural Modulus ◽  
Natural Fibers ◽  
Unsaturated Polyester Resin ◽  
Resin Composites ◽  
Curing Process ◽  
Manufacturing Costs ◽  
Flexural Tests ◽  
Sisal Fibers

Biobased products have been widely used to prevent damage to the environment. In this context, the use of composites reinforced with natural fibers, replacing synthetics ones, has motivated several researches in last years. The objective of the present work was to characterize composites prepared with unsaturated polyester resin and untreated sisal fibers by tensile and flexural tests. The untreated sisal fibers reinforcement was investigated using 25 g and 50 g masses. The fibers were randomly arranged into the resin to mold composite boards, using the compression molding technique without heating, in a curing process at 25°C for 48 hours. The results indicated that composite with 50 g presented better tensile strength (49%), flexural strength (71%) and flexural modulus (137%). The increase of fibers content improved the mechanical behavior of the composite. In addition, the use of natural fibers replacing a portion of petroleum-based resin can increase the sustainable concept of the products and reduce manufacturing costs, because it can be used less resin.

Development of a head CT dose index (CTDI) phantom based on polyester resin and methyl ethyl ketone peroxide (MEKP): a preliminary study

2020 ◽  
Vol 40 (2) ◽  
pp. 544-553
Author(s):  
Rumaisya Hilmawati ◽  
Heri Sutanto ◽  
Choirul Anam ◽  
Zaenal Arifin ◽  
Rin Hafsatul Asiah ◽  
...  
Keyword(s):  
Methyl Ethyl Ketone ◽  
Polyester Resin ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl ◽  
Head Ct ◽  
Ct Dose ◽  
Ct Dose Index ◽  
Preliminary Study ◽  
Dose Index

scholarly journals Effect of Al2O3 on the Tensile and Impact Strength of Flax/Unsaturated Polyester Composite with Emphasis on Automobile Body Applications

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Gebre Fenta Aynalem ◽  
Belete Sirahbizu
Keyword(s):  
Impact Strength ◽  
Polyester Resin ◽  
Natural Fiber ◽  
Resin Composite ◽  
Unsaturated Polyester ◽  
Fiber Material ◽  
Strength Properties ◽  
Unsaturated Polyester Resin ◽  
Molding Process ◽  
The Impact

This study has endeavored to develop an Al2O3-filled natural fiber reinforced polymer composite which is intended to substitute the most widely used synthetic E-glass fiber material. To attain the desired objective of the work, 0, 5, 10, and 15 wt% Al2O3-filled chopped flax/unsaturated polyester resin composite have been developed by the conventional hand-lay-up method followed by a compression molding process. Consequently, characterization and mechanical property tests are conducted based on the ASTM standard. The results revealed that both tensile and impact strength properties of the base chopped flax/unsaturated polyester resin composite are all affected due to the inclusion and variation of the content of Al2O3 in 15 and 25 wt% fiber loading cases. It has been noticed that a 39.06% increase in the ultimate tensile strength of the composite in 25/UPR-5 composition has been gained. The effect of Al2O3 on the impact strength of the base composite has also been analyzed and a 45% increase has been observed in 15/UPR-10 composition. The findings also witnessed that the newly developed composite can be applied to make automotive parts such as mud guard and engine undercover.

scholarly journals Artificial arenite from wastes of natural sandstone industry

2019 ◽  
Vol 69 (333) ◽  
pp. 178 ◽  
Author(s):  
C. Conde-Vázquez ◽  
O. De Miguel-San Martín ◽  
G. García-Herbosa
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Resin Content ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl ◽  
Grain Sizes ◽  
Natural Rock ◽  
New Material

An artificial arenite was developed from the waste of the sandstone industry. The waste sandstone was treated to obtain different grain sizes that were recombined to reproduce the natural texture. An unsaturated polyester resin was added to the mixture of grains and the cement polymerization was initiated with methyl ethyl ketone peroxide. The product was compacted under pressure of 1.5 to 9.7 MPa and cured at 70 °C. The result was a new material with the appearance of the natural rock. Artificial sandstones were studied by SEM microanalysis, petrography study and XRF analysis. Measurements of flexural strength (9.9 MPa), apparent density (2110 kg/cm3), open porosity (7.6%), water absorption (1.2%), abrasion resistance (19 mm) and photostability (AE * = - 0.009) were carried out. The influence of the design of the mixture and its composition (fraction of aggregates, resin content and pressure) on the texture and the mechanical properties was studied.

scholarly journals Obtaining unsaturated polyester resins and materials based on them using recycled polyethylene terephthalate

2019 ◽  
pp. 20-22
Author(s):  
M. B. Alikin ◽  
D. A. Panfilov ◽  
N. A. Lavrov ◽  
I. M. Dvorko
Keyword(s):  
Polyethylene Terephthalate ◽  
Mechanical Characteristics ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Polymeric Materials ◽  
High Thermal Stability ◽  
Unsaturated Polyester Resin ◽  
Curing Process ◽  
Polyester Resins ◽  
Recycled Polyethylene

A technique has been developed for producing an unsaturated polyester resin by transesterifying the product of glycolysis of secondary polyethylene terephthalate using maleic and phthalic anhydride. The curing process was studied, it was found that the unsaturated polyester resin was cured by the action of oligoether acrylate (TGM-3), peroxide compound (methyl ethyl ketone peroxide) and accelerator (manganese hydroxide divalent, acetylacetone, cobalt stearate). The physic-mechanical characteristics of polymeric materials based on unsaturated polyester resin, the analysis of which indicates a high thermal stability, have been studied.

OPTIMASI PRODUK KOMPOSIT POLIMER VACUUM ASSISTED RESIN INFUSION (VARI) MENGGUNAKAN METODE TAGUCHI

2013 ◽  
Vol 3 (2) ◽  
pp. 69 ◽  
Author(s):  
Gunawan Refiadi ◽  
Hermawan Judawisastra ◽  
Rochim Suratman
Keyword(s):  
Methyl Ethyl Ketone ◽  
Polyester Resin ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl ◽  
Resin Infusion ◽  
Plain Weave

Keunggulan VARI dibanding hand lay-up tingginya fraksi volume serat, fraksi volume void yang rendah dan kondisi manufaktur FRP yang ramah lingkungan. Kualitas produk VARI ditentukan oleh banyak parameter sehingga optimasinya memerlukan banyak trial dan sampel. Penelitian ini memakai metoda Taguchi dengan hanya melakukan delapan run kombinasi serat penguat plain weave dan matrix polyester resin. Parameter infusi yang dioptimasi meliputi bentuk penampang inlet, aplikasi tekanan, gravitasi, dan media distribusi, kandungan katalis dan solvent. Prosedur penelitian dilakukan menggunakan standar ASTM D-2854, software image pro analysis, serta pengukuran variasi tebal dan cacat permukaan sampel. Hasil optimasi Taguchi telah mencapai kriteria the greater-the better dan the lower-the better dalam bentuk fisik masing-masing berupa peningkatan fraksi volume serat dan penurunan fraksi volume void, cacat permukaan, variasi tebal, serta racetracking. Kombinasi parameter optimum yang dicapai adalah tekanan linier, penggunaan distribusi media chop strand mat, aplikasi penampang spiral, beda tinggi 15 cm antara permukaan cetakan dan permukaan resin, pemakaian 0,5% berat methyl ethyl ketone peroxide, dan 5% berat solven aseton.Kata kunci: VARI, Optimasi, Taguchi, the greater-the better, the lower-the better

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