PubMed Journals Articles About "Floor Adhesive Market Type Epoxy Urethane Acrylic Vinyl" RSS

03:00 EDT 19th September 2018 | BioPortfolio

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Showing "Floor Adhesive Market Type Epoxy Urethane Acrylic Vinyl" PubMed Articles 1–25 of 14,000+

Occupational asthma from epoxy compounds.

Two-component epoxy resin systems (ERS) composed of epoxy resin and polyamine hardeners are extensively used in industrial and construction coating. Triglycidyl isocyanurate (TGIC) is another type of epoxy derivative, mostly encountered in polyester powder paints. Epoxy compounds are well known skin sensitizers, but their respiratory sensitizing potential is largely unknown.

Synthesis and characterization of starch-g-poly(vinyl acetate-co-butyl acrylate) bio-based adhesive for wood application.

Enhancing the performance of wood adhesive is important for its industrial applications. Accordingly, we designed and demonstrated the use of two co-monomers vinyl acetate (VAc) and butyl acrylate (BA) for promoting the graft copolymerization while improving the bonding performance of wood adhesive. The results showed that the addition of co-monomers in the ratio of VAc/BA 6:4 (v/v, volume basis of VAc) could improve the shear strength to 6.68 MPa and 3.32 MPa in dry and wet states, respectively.H-nucle...

Effects of Styrene-Acrylic Sizing on the Mechanical Properties of Carbon Fiber Thermoplastic Towpregs and Their Composites.

Thermoplastic towpregs are convenient and scalable raw materials for the fabrication of continuous fiber-reinforced thermoplastic matrix composites. In this paper, the potential to employ epoxy and styrene-acrylic sizing agents was evaluated for the making of carbon fiber thermoplastic towpregs via a powder-coating method. The protective effects and thermal stability of these sizing agents were investigated by single fiber tensile test and differential scanning calorimetry (DSC) measurement. The results ind...

Effects of market type and time of purchase on oxidative status and descriptive off-odors and off-flavors of beef in Vietnam.

The objective of the current study was to determine the effects of market type (super market - SM, indoor market - IM, open market - OM) and sampling time (at the opening - T0 and 4 h after the opening - T4) on antioxidant capacity, lipid oxidation, and descriptive sensory attributes of beef in Vietnam. Values of FC and TEAC were greater in OM beef than IM and SM (P 

Mechanical testing of a steel-reinforced epoxy resin bar and clamp for external skeletal fixation of long-bone fractures in cats.

To provide veterinarians with confidence when using a commercially available epoxy resin in external skeletal fixators (ESF), testing was conducted to determine exothermia during curing of the epoxy resin compared to polymethylmethacrylate (PMMA); the hardness of the epoxy resin as a bar over 16 weeks, and the strength of the epoxy resin bar compared with metal clamps in similarly constructed Type 1a ESF constructs simulating the repair of feline long bone fractures.

Single-site, Organometallic Aluminum Catalysts for the Precise Group Transfer Polymerization of Michael-type Monomers.

Unlike different types of Lewis pairs as polymerization catalysts for acrylic monomers, we herein report on organometallic aluminum(III) compounds, which show a surprisingly high polymerization activity even without an additional Lewis base. DFT calculations, end group analysis and kinetic investigations clearly suggest a main group element (MGE) group transfer polymerization (GTP) mechanism analogous to the known metal-mediated GTP mechanism. The novel catalysts perform a precision polymerization of a broa...

One-Pot Regioselective and Stereoselective Synthesis of C-Glycosyl Amides from Glycals Using Vinyl Azides as Glycosyl Acceptors.

The reaction of glycals containing good leaving groups with aromatic vinyl azides to give α- C-glycosyl amides in good yields is described. Various vinyl azides with different groups undergo the reaction smoothly. In these reactions, an iminodiazonium intermediate is generated by the attack of the vinyl azide onto the glycal under Lewis acid conditions. This undergoes Schmidt-type denitrogenative 1,2-migration to form a nitrilium ion, which, upon hydrolysis, gives the desired C-glycosyl amide.

The role of ethylene-vinyl alcohol copolymer in association with other embolic agents for the percutaneous and endovascular treatment of type Ia endoleak.

To evaluate safety, technical and clinical success of embolization of type Ia endoleak (T1a EL) using ethylene-vinyl alcohol copolymer as embolic agent alone or in combination with other materials.

Detection of the first higher plant epoxyalcohol synthase: Molecular cloning and characterisation of the CYP74M2 enzyme of spikemoss Selaginella moellendorffii.

The CYP74M2 gene of a model plant, the spikemoss Selaginella moellendorffii Hieron, was cloned and the catalytic properties of corresponding recombinant protein were studied. The recombinant CYP74M2 protein was active towards 13-hydroperoxides of linoleic and a-linolenic acids (13-HPOD and 13-HPOT, respectively). In contrast to previously studied CYP74M1 and CYP74M3, which possessed the divinyl ether synthase activity, CYP74M2 behaved as a dedicated epoxyalcohol synthase (EAS). For instance, the 13-HPOD was...

Highly selective synthesis of acrylic acid from lactide in liquid phase.

A novel reaction system for the highly selective, hydrobromic acid catalysed conversion of lactide into acrylic acid under mild conditions is reported. The applied liquid reaction system consists of a temperature-stable bromide-containing ionic liquid and 2-bromopropionic acid as source of dry HBr, with no volatile organic solvent being used. This allows for the in situ removal of the formed acrylic acid leading to an unmatched acrylic acid selectivity of over 72% at full lactide conversion. Accounting for ...

Borinic Acid/Halide Co-catalyzed Semipinacol Rearrangements of 2,3-Epoxy Alcohols.

A new mode of catalysis of the semipinacol rearrangement of 2,3-epoxy alcohols is described. In combination with a halide salt additive, diarylborinic acids promote a Type II rearrangement that occurs with net retention of configuration. This unusual stereochemical outcome is consistent with a mechanism involving regioselective ring opening of the epoxy alcohol by halide, followed by rearrangement of the resulting halohydrin-derived borinic ester. The protocol is applicable to a range of substrates, enablin...

The use of warmed ethyl vinyl acetate in reassembling skeletal remains.

Fragmentation of skeletal material is a common occurrence in archaeological excavations and during forensic investigations. Traditionally the reconstruction of skeletal fragments has relied on the use of adhesive tapes, waxes and glues. The application of warmed ethyl vinyl acetate or EVA enables precise anatomical location without damage to the skeletal material. If reversal is required, the EVA can be removed without damage. This inexpensive technique will enhance the capabilities of research investigator...

Photoinitiated Seeded RAFT Dispersion Polymerization: A Facile Method for the Preparation of Epoxy-Functionalized Triblock Copolymer Nano-Objects.

In this study, a novel photoinitiated seeded reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization is developed for the preparation of epoxy-functionalized triblock copolymer nano-objects at room temperature. Epoxy-functionalized worms and vesicles prepared by photoinitiated RAFT dispersion polymerization of glycidyl methacrylate are used as seeds for chain extension by photoinitiated seeded RAFT dispersion polymerization of methacrylic and acrylic monomers. Good control is maint...

A review on acrylic based hydrogels and their applications in wastewater treatment.

The acrylic based hydrogels have attracted the attention of many researchers in the field of pollutants adsorption such as dyes and metal cations due to their high swelling and adsorption capacities. This review introduces acrylic based hydrogels and focuses on their adsorption properties. We first described the methods for synthesizing hydrogels. Usual methods of characterization of acrylic based hydrogels such as swelling, adsorption capacity and desorption efficiency of the pollutants have been investiga...

A Randomized Proof-of-Principle Bite Force Study of Two Experimental Denture Adhesives and a Commercially Available Adhesive.

To assess the efficacy of two experimental denture adhesive gels (adhesives 1 and 2) compared to a commercially available denture adhesive cream (positive control) and no adhesive (negative control).

A One-Component, Fast-Cure, and Economical Epoxy Resin System Suitable for Liquid Molding of Automotive Composite Parts.

Imidazole cured epoxy resin systems were evaluated for one-component, fast-curing resins for liquid molding of automotive composite parts according to industry requirements. It was demonstrated that an epoxy resin-1-(cyanoethyl)-2-ethyl-4-methylimidazol(EP-1C2E4MIM) system would cure in a few minutes at 120 °C, while exhibiting acceptable pot life, viscosity profiles, and low water absorption. Moreover, this system yielded high parts with mechanical properties similar to the amine-epoxy systems, which ...

Modern Theories of Pelvic Floor Support : A Topical Review of Modern Studies on Structural and Functional Pelvic Floor Support from Medical Imaging, Computational Modeling, and Electromyographic Perspectives.

Weakened pelvic floor support is believed to be the main cause of various pelvic floor disorders. Modern theories of pelvic floor support stress on the structural and functional integrity of multiple structures and their interplay to maintain normal pelvic floor functions. Connective tissues provide passive pelvic floor support while pelvic floor muscles provide active support through voluntary contraction. Advanced modern medical technologies allow us to comprehensively and thoroughly evaluate the interact...

Enhancement of the corrosion resistance of epoxy coating by highly stable 3, 4, 9, 10-perylene tetracarboxylic acid functionalized graphene.

In this paper, the 3, 4, 9, 10-perylene tetracarboxylic acid-graphene (PTCA-G) composite was synthesized and the corrosion protection property of epoxy coating-coated Q235 steel containing PTCA-G composite was investigated. The results of Fourier transform infrared spectroscopy (FT-IR) proved that 3, 4, 9, 10-perylene tetracarboxylic acid (PTCA) and graphene (G) were combined via π-π interactions and hydrophobic forces between PTCA and G. The results of electrochemical tests indicated that with additives ...

In Vitro Study of Bonding Strength of Zirconia on Dentin Using Different Adhesive Systems.

To compare different dental bonding systems that are currently available on the market.

Adhesion characteristics of porcine pancreatic islets and exocrine tissue to coating materials.

Since the report of the Edmonton protocol in 2000, islet transplantation has been implemented worldwide, and xenotransplantation using porcine islets has also been reported. In addition, many basic experiments using pancreatic islets and exocrine tissue after isolation have been reported. Recently, exocrine cells have been found to be essential for inducing the differentiation of pancreatic islets. Therefore, the importance of the culture conditions for pancreatic tissue when conducting experiments using pa...

Low-adhesive Ethylene Vinyl Alcohol-based Packaging to Xenogeneic Islets Encapsulation for Type 1 Diabetes Treatment.

Transplantation of encapsulated porcine islets is proposed to treat type 1 diabetes. However, envelopment of fibrous tissue and infiltration of immune cells impair islets function and eventually cause implant failure. It is known that hemodialysis using an ethylene vinyl alcohol (EVOH) membrane results in minor tissue responses. Therefore, we hypothesized that using a low adhesive EVOH membrane for encapsulation may prevent host cell accumulation and fibrous capsule formation. In this study, rat islets susp...

Six-Year Experience in Teaching Pelvic Floor Ultrasonography Using Pelvic Floor Phantoms.

To review our 6-year experience (2009-2015) in teaching three-dimensional pelvic floor ultrasonography workshops that utilized pelvic floor phantoms in the setting of an Objective Structured Assessment of Technical Skills methodology.

What Serum Lipid Abnormalities Are Associated with Adhesive Capsulitis Accompanied by Diabetes?

Adhesive capsulitis is common and can cause stiffness and pain. Diabetes and dyslipidemia are known to be associated with adhesive capsulitis. However, there is no report of any association between serum lipid profiles and adhesive capsulitis accompanied by diabetes.

Comparison of adhesive seal morphology between APC™ PLUS and APC™ Flash-Free Adhesive Coated brackets.

Does the new adhesive-coated APC™ Flash-Free bracket from the 3M Unitek group simplify the bonding protocol without compromising precision?

Homophilic and Heterophilic Interactions of Type II Cadherins Identify Specificity Groups Underlying Cell-Adhesive Behavior.

Type II cadherins are cell-cell adhesion proteins critical for tissue patterning and neuronal targeting but whose molecular binding code remains poorly understood. Here, we delineate binding preferences for type II cadherin cell-adhesive regions, revealing extensive heterophilic interactions between specific pairs, in addition to homophilic interactions. Three distinct specificity groups emerge from our analysis with members that share highly similar heterophilic binding patterns and favor binding to one an...

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