A solventless synthesis process of new UV-curable materials based on linseed oil

2011 ◽  
Vol 13 (4) ◽  
pp. 1014 ◽  
Author(s):  
Ornella Zovi ◽  
Laurence Lecamp ◽  
Corinne Loutelier-Bourhis ◽  
Catherine M. Lange ◽  
Claude Bunel
Keyword(s):  
Linseed Oil ◽  
Synthesis Process ◽  
Uv Curable ◽  
Solventless Synthesis

UV-Curable Organic-Inorganic Hybrid Films Based on Epoxynorbornene Linseed Oils

2011 ◽  
Vol 217-218 ◽  
pp. 294-299
Author(s):  
Jian Yun He ◽  
Jin Ping Xiong ◽  
Bing Qian Xia
Keyword(s):  
Linseed Oil ◽  
Silica Content ◽  
Coating Properties ◽  
Hybrid Films ◽  
Nano Silica ◽  
Pencil Hardness ◽  
Uv Curable ◽  
Inorganic Hybrid ◽  
Silica Coatings ◽  
Wetting Properties

Epoxynorbornene linseed oil (ENLO) is a new kind of epoxide from renewable sources. An UV-curable organic/inorganic hybrid films using epoxynorbornene linseed oils (ENLO) and surface treated nano-silica were formulated. The mechanical properties，thermal properties and coating properties of the ENLO /silica coatings were evaluated as the function of nano-silica content. The results indicated that after incorporating the nano-silica, the strength, modulus and glass transition temperature of the hybrid films enhanced, while the elongation at break decreased. The nano-silica also improved the hybrid coating properties such as pencil hardness, solvent resistance and surface wetting properties. The morphology observation of the films by atomic force microscopy (AFM) showed that the average silica particle size was ~ 70 nm and the particles were well-dispersed in the organic phase.

One-step synthesis of novel renewable multi-functional linseed oil-based acrylate prepolymers and its application in UV-curable coatings

2020 ◽  
Vol 148 ◽  
pp. 105820
Author(s):  
Yupei Su ◽  
Shuting Zhang ◽  
Yanwu Chen ◽  
Teng Yuan ◽  
Zhuohong Yang
Keyword(s):  
Linseed Oil ◽  
Uv Curable ◽  
One Step

Development of linseed oil–TiO2 green nanocomposites as antimicrobial coatings

2015 ◽  
Vol 3 (21) ◽  
pp. 4458-4471 ◽  
Author(s):  
Ana M. Díez-Pascual ◽  
Angel L. Díez-Vicente
Keyword(s):  
Antimicrobial Activity ◽  
Linseed Oil ◽  
Nanocomposite Coatings ◽  
Public Places ◽  
Uv Curable ◽  
Antimicrobial Coatings ◽  
Microbial Proliferation ◽  
Epoxidized Linseed Oil

UV-curable acrylated epoxidized linseed oil–TiO2 nanocomposite coatings with antimicrobial activity were developed to prevent microbial proliferation in public places like hospitals.

Synthesis and Characterization of UV-Thermal Dual Hybrid Curable Organosilicon Modified Epoxy Monoacrylates

2012 ◽  
Vol 152-154 ◽  
pp. 657-660
Author(s):  
Hong Bo Liu ◽  
Feng Lin ◽  
Wu Ying Zhang
Keyword(s):  
Fourier Transform ◽  
Synthesis Process ◽  
Synthesis And Characterization ◽  
Titration Method ◽  
Uv Curable ◽  
Oh Groups ◽  
Acrylic Ester ◽  
Modified Epoxy ◽  
Epoxy Groups

New UV-thermal dual hybrid curable organosilicon-modified epoxy monoacrylates (OMEMA) were synthesized in this study. The changes of NCO groups during the synthesis process of OMEMA were measured by chemical titration method, and its Fourier Transform Infrared (FTIR) spectra were investigated. The results indicate that organosilicon chain segments can be grafted onto the epoxy monacrylates (EMA) by the reaction of NCO and OH groups. The FTIR of OMEMA show that it contains both double bond of acrylic ester (UV curable) and epoxy groups (thermal curable).

Facile room temperature solventless synthesis of high thermoelectric performance Ag2Se via a dissociative adsorption reaction

2017 ◽  
Vol 5 (44) ◽  
pp. 23243-23251 ◽  
Author(s):  
Dongwang Yang ◽  
Xianli Su ◽  
Fanchen Meng ◽  
Si Wang ◽  
Yonggao Yan ◽  
...  
Keyword(s):  
Energy Demand ◽  
Room Temperature ◽  
Low Cost ◽  
Dissociative Adsorption ◽  
Low Energy ◽  
Synthesis Process ◽  
High Quality ◽  
Adsorption Reaction ◽  
Silver Chalcogenide ◽  
Solventless Synthesis

The facile room temperature yet solventless synthesis process, characterized by its simplicity, speed, low energy demand, low cost, opens a new avenue for the preparation of high quality silver chalcogenide samples.

scholarly journals Conductive Polyaniline Doped with Dodecyl Benzene Sulfonic Acid: Synthesis, Characterization, and Antistatic Application

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2970
Author(s):  
Cheng-Ho Chen ◽  
Jing-Mei Wang ◽  
Wei-Yu Chen
Keyword(s):  
Reaction Time ◽  
Sulfonic Acid ◽  
Synthesis Process ◽  
Benzene Sulfonic Acid ◽  
Synthesis Time ◽  
Uv Curable ◽  
Conductive Composite ◽  
Dodecyl Benzene Sulfonic Acid ◽  
Conductive Polyaniline ◽  
Uv Coating

A novel method was conducted to synthesize conductive polyaniline (PANI) doped with dodecyl benzene sulfonic acid (DBSA) (PANDB) in xylene by using chemical oxidative polymerization at 25 °C. Meanwhile, the synthesis process was photographed. Results showed as the reaction time was increased, and the color of the product was gradually turned into dark green. The influence of different synthesis time on properties of synthesized PANDB was then examined by a Fourier transform infrared (FTIR) spectrometer, an ultraviolet-visible spectrophotometer (UV-vis), a four-point measurement method, and a Field-emittance scanning electron microscope (FE-SEM). The result indicated that the optimum reaction time was 24 h with conductivity at around 2.03 S/cm. FE-SEM images and the conductivity testing showed that the more needle-like shapes in resulted PANDB, the higher the conductivity. The synthesized PANDB solution was blended with UV curable coating firstly and then coated on polyethylene terephthalate (PET) sheet. The UV coating/PANDB conductive composite films displayed an impressive translucency along with an adequate flexibility at room temperature. The UV coating/PANDB conductive composite film on PET sheet was flexible, transparent, and with antistatic function.

Preparation and characterisation of melamine-urea-formaldehyde microcapsules containing linseed oil in the presence of polyvinylpyrrolidone as emulsifier

2017 ◽  
Vol 46 (4) ◽  
pp. 318-326 ◽  
Author(s):  
Amir Khalaj Asadi ◽  
Morteza Ebrahimi ◽  
Mohsen Mohseni
Keyword(s):  
Particle Size ◽  
Maleic Anhydride ◽  
Linseed Oil ◽  
Urea Formaldehyde ◽  
Ph Control ◽  
Synthesis Process ◽  
Gravimetric Analysis ◽  
Agitation Rate ◽  
Self Healing ◽  
Content Type

Purpose The purpose of this work was to express a facile method to fabricate microcapsules containing linseed oil with melamine-urea-formaldehyde (MUF) shell in the presence of polyvinylpyrrolidone (PVP) as an emulsifier. These microcapsules may be used in self-healing coating formulations. Design/methodology/approach In this work, different types of PVP (i.e., PVP with different molecular weights or K values) were used as emulsifiers and colloid protectors to encapsulate linseed oil in an MUF shell. Moreover, the effect of agitation rate on the morphology of the microcapsules was investigated. Microcapsule morphology and particle size distribution were evaluated using optical microscopy and scanning electron microscopy. Thermal studies were performed using a thermo-gravimetric analysis technique and chemical structure of materials was characterized by using Fourier transform infrared analysis. Findings In this work, microcapsules with a regular spherical shape and a shell thickness of about 330 nm were fabricated. The results revealed that the use of PVP in the fabrication of MUF could facilitate the synthesis process by eliminating the necessity of pH control during the reaction. In fact, the pH of the reaction media must be precisely controlled in conventional processes. The yield of microencapsulation was found to be 86.5 per cent when a high molecular weight of PVP (PVP K-90) was used. It was also found that the surface morphology of microcapsules became smoother when PVP K-90 was used. The results showed that the surface roughness and the average particle size decreased with an increase in stirring intensity. Mean diameter of the prepared microcapsules ranged from 34 to 346 μmin for various synthesis conditions. Research limitations/implications This work is limited to the encapsulation of a hydrophobic liquid (such as linseed oil) by an in situ polymerisation of amino resins. Practical implications The presented results can be used by researchers (in academia and industry) who are working in the field of fabrication microcapsules, in various applications such as pharmaceuticals, electrophoretic displays, textiles, carbonless copy papers, cosmetics, printing and self-healing materials. Social implications PVP is considered as an environmentally friendly emulsifier. Therefore, this process is less harmful to the environment. In addition, the prepared microcapsules may be used in self-healing coatings, which helps in reducing maintenance costs for buildings and steel structures. Originality/value Ethylene maleic anhydride and styrene maleic anhydride are usually used as emulsifiers in conventional methods for the preparation of amino resin microcapsules. These methods require an intensive and precise pH control to obtain favourable microcapsules, while in the present research, a facile method was used to fabricate MUF microcapsules containing linseed oil without needing any pH control during the reaction.

Water-Based UV-Curable Polyurethane Based on Wheat Straw Lignin Obtained by Ethanol Extraction

2011 ◽  
Vol 295-297 ◽  
pp. 278-281
Author(s):  
Fu Qiang Chu ◽  
Xiang Jiao Wu
Keyword(s):  
Wheat Straw ◽  
Lignin Content ◽  
Average Particle Size ◽  
Uv Curing ◽  
Synthesis Process ◽  
Average Particle ◽  
Uv Curable ◽  
Ethanol Extraction ◽  
Water Based ◽  
Positive Effect

The aim of this paper is to discuss the application of ethanol-dissolved lignin in preparing high value products. Lignin was extracted from wheat straw by ethanol and used to prepare water-based UV-curable polyurethane. The preparation of water-based UV-curable polyurethane was completed by a three-step reaction. Besides lignin, toluene- 2, 4- diisocyanate (TDI), dimethylolpropionic acid (DMPA), 2-hydroxyethyl acrylate (HEA) and polyether glycol (PPG) were used. The effect of lignin content on the synthesis process was studied. The prepared lignin polyurethane was neutralized with tertiary amine (TEA) and dispersed in water. The properties of the final product, for example, rheological property, average particle size, UV-curing ability and mechanical property, etc. were characterized. Results indicated that the lignin polyurethanes could cure quickly and the presence of lignin with a proper proportion during the synthesis had a positive effect on the tensile strength of cured film.

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