Fourier-Transform Infra Red (FTIR) Analysis of UV Curing Biobased-Polyurethane from Epoxidized Palm Oil Using Acrylation and Thiols Addition

2021 ◽  
Vol 1025 ◽  
pp. 91-96
Author(s):  
Nor Amira Binti Ahmad ◽  
Siti Noor Hidayah Binti Mustapha ◽  
Shamsul Bin Zakaria ◽  
Rasidi Bin Roslan ◽  
Tee Chuan Lee ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Palm Oil ◽  
Uv Curing ◽  
Attenuated Total Reflection ◽  
Ftir Analysis ◽  
Isophorone Diisocyanate ◽  
New Approach ◽  
Epoxidized Palm Oil ◽  
Infra Red ◽  
Biobased Polyurethane

This study is conducted to synthesis bio-polyurethane from epoxidized palm oil (EPO). Palm oil-based polyurethane was synthesized by the acrylation process followed by thiols addition. The resulting oligomers were then reacted with isophorone diisocyanate (IPDI) and dibutylin dilaurate (DBTDL) to form Thiolated Acrylated Epoxidized Palm Oil Urethane (t-AEPOU). t-AEPOU was then reacted under UV photoirradiation for further reaction and to pre-determine its curing activities. The polymerization of AEPO and t-AEPOU were confirms by using Attenuated Total Reflection - Fourier-Transform Infra Red (ATR-FTIR). This study affords new approach in synthesis of Palm Oil bio-based Polyurethane Coating.

MODIFIED MESOPOROUS Γ-ALUMINA FROM KANO KAOLIN IN HETEROGENEOUS TRANSESTERIFICATION OF RICE BRAN OIL

2015 ◽  
Vol 77 (13) ◽  
Author(s):  
Abdu Muhammad Bello ◽  
Abdul Rahim Yacob ◽  
Kamaluddeen Suleiman Kabo
Keyword(s):  
Fourier Transform ◽  
Rice Bran ◽  
Fossil Fuel ◽  
Rice Bran Oil ◽  
Attenuated Total Reflection ◽  
Resonance Spectroscopy ◽  
High Catalytic Activity ◽  
Impregnation Method ◽  
Alternative Source ◽  
Infra Red

The environmental problems caused by the excessive usage of fossil fuel, prompted the need for an alternative source of energy. Renewable energy from biodiesel is one of the most promising substitutions of fossil fuel due its environmental-friendliness. In the present work NaOH-modified γ-alumina heterogeneous base catalysts were prepared using wet impregnation method, and characterized by Nitrogen Adsorption Analysis (BET), Fourier Transform Infra-Red (FTIR), X-Ray Powder Diffraction (XRD), basic back titration, and Temperature Programmed Desorption-CO2 (CO2-TPD). The catalysts were tested for the transesterification of rice bran oil with methanol, and the biodiesel product characterized by Fourier Transform Infra-Red-Attenuated Total Reflection (FTIR-ATR) and Nuclear Magnetic Resonance Spectroscopy (NMR) analyses. Catalyst synthesize with 50% NaOH was found to have the highest basic sites and when applied for the transesterification of rice bran oil it gave the highest yield of 81.2%. The high catalytic activity is attributed to the formation of NaAlO2 that is believed to contribute to the basicity of the catalyst.   

Simultaneous Real-Time Analysis of Bulk and Bottom Cure of Ultraviolet-Curable Inks Using Fourier Transform Infrared Spectroscopy

2017 ◽  
Vol 71 (12) ◽  
pp. 2699-2706 ◽  
Author(s):  
Hennie A.L. Boonen ◽  
Janou A. Koskamp ◽  
Wolfgang Theiss ◽  
Piet D. Iedema ◽  
Robin X.E. Willemse
Keyword(s):  
Fourier Transform ◽  
Real Time ◽  
Uv Curing ◽  
Fourier Transform Infrared ◽  
Attenuated Total Reflection ◽  
Analysis Method ◽  
Real Time Analysis ◽  
Curing Characteristics ◽  
Ultraviolet Curable ◽  
Ft Ir

The curing characteristics of an ultraviolet (UV) ink layer are of utmost importance for the development of UV inks. Measuring either bulk or bottom cure in itself is not new and has been the subject of many articles. In this article, two methods are described based on Fourier transform infrared (FT-IR) spectrometry to measure in real time and simultaneously the bulk and bottom cure of a thin UV ink layer. The procedure consists of applying a thin (10–12 µm) layer of UV-curing ink on an attenuated total reflection (ATR) crystal. The bottom cure is measured with ATR. The bulk cure is measured simultaneously with a reflection analysis (method 1) or a transmission analysis (method 2). With both methods, the bulk and bottom cure can be determined. To overcome problems with the interference in the ATR reflection setup, it is recommended to use the ATR transmission setup.

Synthesis of New Bio-Based Thermoset Resin from Palm Oil

2014 ◽  
Vol 931-932 ◽  
pp. 78-82 ◽  
Author(s):  
Alireza Fakhari ◽  
Abdul Razak Rahmat ◽  
Mat Uzir Wahit ◽  
Yeong Shoot Kian
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Fourier Transform ◽  
Palm Oil ◽  
Epoxy Group ◽  
Resonance Spectroscopy ◽  
Thermosetting Resin ◽  
H Nmr ◽  
Thermoset Resin ◽  
Epoxidized Palm Oil ◽  
Epoxy Groups

New bio-based thermosetting resin was synthesized from palm oil. In this study the epoxy groups presented on the epoxidized palm oil (EPO) were first acrylated and then further maleinized. The acrylation reaction was done by introducing acrylic acid into epoxy group of the epoxidized palm oil. Hydroquinone and triethylamine were used as inhibitor and catalyst, respectively. This reaction was confirmed by Fourier Transform Infrared Spectroscopy (FTIR). To render acid groups on the resulting monomer, the acrylated epoxidized palm oil (AEPO) was further reacted with maleic anhydride. The resulting maleinated acrylated epoxidized palm oil (MAEPO) was characterized by FTIR and Nuclear Magnetic Resonance Spectroscopy (1H NMR).

Photosensitive poly(ether sulfone)s for thiol/ene UV curable coatings: synthesis, characterization and crosslinking

e-Polymers ◽  
2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Zhi Zeng ◽  
Shaowei Guan ◽  
Haibo Zhang ◽  
Linlin Zhang ◽  
Baijun Liu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Fourier Transform ◽  
Thermal Properties ◽  
Room Temperature ◽  
Uv Curing ◽  
Acid Salt ◽  
Uv Curable ◽  
New Approach ◽  
Good Thermal Stability ◽  
Crosslinking Process

AbstractNovel photocrosslinkable poly(ether sulfone)s copolymers with allyl pendants (AS-PES) have been synthesized from 3,3’-diallyl-4,4’-dihydroxydiphenyl sulfone (DA-DHDPS), 4,4’-dihydroxydiphenyl sulfone (DHDPS) and 4,4’- dichlorophenylsulfone (DCDPS). The resulting polymers could be photocrosslinked in the presence of thiol at room temperature. The crosslinking process was monitored by “Real Time Fourier Transform Infrared Spectroscopy” (RTIR). It proves that a small amount (1.0 wt%) of the thiol crosslinker addition is sufficient to form a chemical network under UV irradiation. After UV curing, AS-PES-20 coating showed high Tg, good thermal stability and excellent resistance to the acid, salt, and alkali. Accordingly, this method could successfully provide a new approach to make rapidly photocrosslinking poly(ether sulfone) coatings without losing their good thermal properties.

Synthesis and Characterization of Palm Oil Based Polyol

2013 ◽  
Vol 812 ◽  
pp. 275-280
Author(s):  
Yahaya Siti Munira ◽  
Ahmad Faiza Mohd ◽  
Mohamed Rahmah
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Fourier Transform ◽  
Palm Oil ◽  
Ring Opening ◽  
Hydroxyl Group ◽  
Synthesis And Characterization ◽  
Epoxidized Palm Oil ◽  
Ring Opening Reaction ◽  
Epoxy Groups

In this study, palm oil-based polyols were prepared and characterized. In order to prepare the polyol, Epoxidized palm oil (EPO) was reacted with glycerol and undergoes ring opening reaction. The synthesized oil was characterized by oxygen oxirane content titration (OOC), hydroxyl value test (HV), fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR). Based on the FTIR spectrum of polyols, the disappearance of epoxy groups at 825cm-1, 843cm-1 and the emergence of hydroxyl group at 3394cm-1 are obvious indicating that hydroxyl group of the polyols formed. In NMR, the presence of new signal at δ 3.46ppm (-CH-OH) showed the attachment of hydroxyl group onto the epoxidized palm oil.

PEMBUATAN DAN KARAKTERISASI SERAT HOLLOW DARI SELULOSA BAKTERIAL DENGAN NANOPARTIKEL ZnO UNTUK PENGOLAHAN AIR LIMBAH TEKSTIL

Arena Tekstil ◽  
2014 ◽  
Vol 29 (1) ◽  
Author(s):  
Rizka Yulina ◽  
Srie Gustiani ◽  
Wulan Septiani
Keyword(s):  
Fourier Transform ◽  
Acetobacter Xylinum ◽  
Wet Spinning ◽  
Ph Optimum ◽  
Infra Red ◽  
Remazol Black

Selulosa bakterial mempunyai sifat mekanik yang baik untuk digunakan sebagai membran pada proses pengolahan air limbah tekstil. Pada penelitian ini dilakukan pembuatan dan karakterisasi serat hollow dari bahan baku selulosa bakterial nata de coco dengan penambahan nanopartikel ZnO sebagai fotokatalis terimmobilisasi. Selulosa bakterial disintesis menggunakan bakteri Acetobacter xylinum di dalam medium air kelapa dan gula. Selulosa bakterial dilarutkan bersama dengan nanopartikel ZnO menggunakan pelarut cuprietilen diamina (Cuen) dengan variasi selulosa bakterial 2,25% dan 2,50%. Serat berbentuk hollow dihasilkan dari proses wet spinning menggunakan koagulan NaOH. Serat hollow yang telah melalui koagulan kemudian direndam dalam larutan asam, gliserol, dan alkohol, dengan variasi waktu perendaman asam selama 1 dan 2 hari. Uji kekuatan tarik menunjukkan hasil yang terbaik yakni sebesar 815,72 gf pada konsentrasi selulosa bakterial 2,50% dan perendaman asam selama 2 hari. Dari hasil uji gugus fungsi menggunakan spektroskopi Fourier Transform Infra Red (FTIR), terdapat beberapa gugus fungsi yang menunjukkan keberadaan selulosa dan nanopartikel ZnO. Proses dekolorisasi fotokatalitik terhadap air limbah tekstil artifisial yang mengandung zat warna reaktif Remazol Black 5 (RB5) menunjukkan bahwa pH optimum proses penyisihan warna yakni pada pH 9 dan dihasilkan persen penyisihan warna yang tertinggi yaitu 90,32%. Pada kondisi yang sama, proses dekolorisasi RB5 menggunakan serat hollow tanpa nanopatikel ZnO hanya menghasilkan persen penyisihan warna sebesar 32,10%. Berdasarkan laju penyisihan zat warna, aktivitas degradasi fotokatalitik terbesar (k’ = 0,2615) diperoleh pada konsentrasi ZnO 10% dan konsentrasi zat warna RB5 10 ppm.

PENGGUNAAN TiO2 PARTIKEL NANO HASIL SINTESIS BERBASIS AIR MENGGUNAKAN METODA SOL-GEL PADA BAHAN KAPAS SEBAGAI APLIKASI UNTUK TEKSTIL ANTI UV

Arena Tekstil ◽  
2013 ◽  
Vol 28 (1) ◽  
Author(s):  
Maya Komalasari ◽  
Bambang Sunendar
Keyword(s):  
Fourier Transform ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Sol Gel ◽  
Crosslinking Agent ◽  
X Ray Diffraction ◽  
Nano Tio2 ◽  
X Ray ◽  
Infra Red ◽  
Scanning Electron

Partikel nano TiO2 berbasis air dengan pH basa telah berhasil disintesis dengan menggunakan metode sol-gel dan diimobilisasi pada kain kapas dengan menggunakan kitosan sebagai zat pengikat silang. Sintesis dilakukan  dengan prekursor TiCl4 pada konsentrasi 0,3 M, 0,5 M dan 1 M, dan menggunakan templat kanji dengan proses kalsinasi pada suhu 500˚C selama 2 jam. Partikel nano TiO2 diaplikasikan ke kain kapas dengan metoda pad-dry-cure dan menggunakan kitosan sebagai crosslinking agent. Berdasarkan hasil Scanning Electron Microscope (SEM),diketahui bahwa morfologi partikel TiO2 berbentuk spherical dengan ukuran nano (kurang dari 100 nm). Karakterisasi X-Ray Diffraction (XRD) menunjukkan adanya tiga tipe struktur kristal utama, yaitu (100), (101) dan (102) dengan fasa kristal yang terbentuk adalah anatase dan rutile. Pada karakterisasi menggunakan SEM terhadap serbuk dari TiO2 yang telah diaplikasikan ke permukaan kain kapas, terlihat adanya imobilisasi partikel nano TiO2 melalui ikatan hidrogen silang dengan kitosan pada kain kapas. Hasil analisa tersebut kemudian dikonfirmasi dengan FTIR (Fourier Transform Infra Red) yang hasilnya memperlihatkan puncak serapan pada bilangan gelombang 3495 cm-1, 2546 cm-1, dan 511 cm-1,  yang masing-masing diasumsikan sebagai adanya vibrasi gugus fungsi O-H, N-H dan Ti-O-Ti. Hasil SEM menunjukkan pula bahwa kristal nano yang terbentuk diantaranya adalah fasa rutile , yang berdasarkan literatur terbukti dapatberfungsi sebagai anti UV.

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