Materiales

Materiales

Construction of vinyl ester resins composite coatings via introducing silane-functionalized graphene oxide for enhancing comprehensive performance
29/09/2022 - Vinyl ester resins (VERs) are often used as anti-corrosive coating due to their high curing speed and good mechanical property in most industrial fields. However, many small holes can be formed...
Influence of the Reinforcement Structure on the Thermal Conductivity and Surface Resistivity of Vinyl Ester Composites Used on Explosion-Proof Enclosures of Electrical Equipment
26/07/2022 - The study aimed to evaluate the influence of structure (type and material) on thermal properties (thermal conductivity, diffusivity) and surface resistance of composites used for explosion-proof...
Yellowing mechanisms of epoxy and vinyl ester resins under thermal, UV and natural aging conditions and protection methods
01/10/2022 - Polymer resins have yellowing issue when subjected to elevated temperatures or UV exposure, which limit their applications in color-sensitive fields. This paper presents an experimental study on...
Engineering silica encapsulated composite of acyltransferase from Mycobacterium smegmatis and MIL-88A: A stability-and activity-improved biocatalyst for N-acylation reactions in water
- Here the metal-organic framework material MIL-88A is used to purify and immobilize an acyltransferase from Mycobacterium smegmatis (MsAcT) simultaneously from the broken bacterial liquid....
Synergic effect of temperature and alkalinity on the long?term durability of pure vinyl ester
12/07/2022 - Degradation phenomenon and mechanism of pure vinyl ester resin in a synergized high temperature and alkaline exposure condition.This paper presents an experimental approach to investigate the...
Isocyanate?free urethane modified vinyl ester resin: synthesis, characterization, and mechanical properties
15/06/2022 - In this paper, we have reported the production of a mixture of urethane modified vinyl ester resin (UVER) through the non?isocyanate polyurethane (NIPU) method without using phosgene poisonous...
Approaching new biomaterials: copolymerization characteristics of vinyl esters with norbornenes, allyl esters and allyl ethers
11/06/2022 - Fundamental studies of the free radical photopolymerization of vinyl esters with different co?monomers pave the way for the development of new materials. Photoreactor and photorheology experiments...
Synergetic enhancement of interfacial properties and impact resistant of UHMWPE fiber reinforced composites by oxygen plasma modification
15/07/2022 - This study reveals the synergetic enhancement of oxygen plasma treatment on the
Untreated and chemically treated Pennisetum orientale grass fiber filled vinyl ester composites: Physical, mechanical, and thermal properties analysis
26/04/2022 - The utilization of natural fibers rather than engineered filaments has turned into a subject of conversation in the composite industries. In this research, one of the natural fibers was synthesized...
A ?-butyrolactone-derived poly(vinyl ester) with pendant groups recyclability and controlled release of poly(vinyl alcohol): Synthesis, recyclability, and physical properties
01/06/2022 - A pendant group recyclable poly (vinyl ester) [poly vinyl 4-((tert-butyldiphenylsilyl) oxy) butanoate, PVBT] was synthesized by classic free radical polymerization of a...
Development of Low Shrinkage Curing Techniques for Unsaturated Polyester and Vinyl Ester Reinforced Composites
19/04/2022 - This work investigated low shrinkage curing techniques and characterization of unsaturated polyester (UPE-8340) and vinyl ester (VE-922) reinforced composite. The reinforced polymeric composite was...
Scale-up of Emulsion Polymerisation up to 100 L and with a Polymer Content of up to 67 wt%, Monitored by Photon Density Wave Spectroscopy
12/04/2022 - The scale-up process of the high solid content (up to 67 wt%) emulsion polymerisation of vinyl acetate and Versa®10 from 1 L over 10 L to 100 L was investigated. An emulsion...
Studies on mechanical and fracture properties of basalt/E?glass fiber reinforced vinyl ester hybrid composites
11/04/2022 - In this study, a comparative analysis of basalt, E?glass and hybrid fiber reinforced vinyl ester composites was carried out. Composites were fabricated using vacuum infusion process with 0°/90°...
Using a Fiber Bragg Grating Sensor to Measure Residual Strain in the Vacuum-Assisted Resin Transfer Molding Process
01/04/2022 - Vinyl ester (VE) resin has strong environmental tolerance and is the matrix commonly used in the composite materials of fiber-reinforced plastics (FRP). VE resin is often combined with glass fiber in...
A spatial distribution effect of almond shell bio filler on physical, mechanical, thermal deflection and water absorption properties of vinyl ester polymer composite
26/03/2022 - The present work deals with the effective utilization of almond shell bio?waste fillers in the production of vinyl ester polymer composites. The almond shell particle surface was chemically modified...
Failure analysis of basalt bidirectional mat reinforced micro/nano Sic particle filled vinyl ester polymer composites
01/06/2022 - Natural fiber reinforced polymer composites are increasingly used in composites industry to propel towards sustainable and environmentally friendly materials. Basalt fibers have superior...
Polyester and Epoxy Resins with Increased Thermal Conductivity and Reduced Surface Resistivity for Applications in Explosion-Proof Enclosures of Electrical Devices
15/03/2022 - Composite materials are still finding new applications that require the modification of various properties and are characterized by the summary impact on selected operational features. Due to the...
Promiscuous Lipase-Catalyzed Markovnikov Addition of H-Phosphites to Vinyl Esters for the Synthesis of Cytotoxic α-Acyloxy Phosphonate Derivatives
07/03/2022 - An enzymatic route for phosphorous-carbon- bond formation is developed by discovering new promiscuous activity of lipase. This biocatalytic transformation of phosphorous-carbon- bond addition leads...
Processing?structure?property relationship of multilayer graphene sheet thermosetting nanocomposites manufactured by calendering
08/02/2022 - The dispersion state of multilayer graphene sheets in polymers has a strong impact on the properties of the nanocomposite, and is driven by the processing parameters of the dispersion method. Herein,...
Mechanical, thermogravimetric, and dynamic mechanical analysis of basalt and flax fibers intertwined vinyl ester polymer composites
12/02/2022 - Extraction and characterization of bio and Activated carbon from the biowaste. Tested the effect of carbon in the polymer composites under solid particle erosion.The selection of fibers and their...
Effect of combined micro and nano silicon carbide particles addition on mechanical, wear and moisture absorption features of basalt bidirectional mat/vinyl ester composites
22/02/2022 - Basalt fiber reinforcement in polymer composites has recently become very competitive to the routinely used synthetic fiber reinforcements. In the present work, composite specimens were prepared with...