Design of water-based polyvinyl alcohol coatings using a drying modifier to minimize the residual solvent and coating defects

2022 ◽  
Author(s):  
Manju Rawat ◽  
Sanjeev Ahuja
Keyword(s):  
Polyvinyl Alcohol ◽  
Residual Solvent ◽  
Water Based

Application of Water-Based Alumina Tapes Prepared Using PVP Binder for All-Ceramic Dental Crowns

2004 ◽  
Vol 449-452 ◽  
pp. 1189-1192 ◽  
Author(s):  
Se Young Choi ◽  
Il Seok Park ◽  
Deuk Yong Lee ◽  
Jung Suk Han ◽  
Dae Joon Kim
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Polyvinyl Alcohol ◽  
Drying Rate ◽  
Marginal Gap ◽  
Dental Crowns ◽  
All Ceramic ◽  
Water Based ◽  
High Flexibility ◽  
Tape Cast

Aqueous alumina tapes were prepared by a doctor blade using polyvinyl pyrrolidone (PVP) as a binder and gelatin and polyvinyl alcohol (PVA) as additional binders to improve drying rate and mechanical properties of the tapes containing PVP. As binder was prepared by mixing 89.5 wt% of PVP, 10 wt% of PVA, and 0.5 wt% of gelatin, tape properties were optimized showing complete drying in 3h, tensile strength of 1 MPa, and high flexibility. Marginal gap of all-ceramic dental crowns prepared using the tapes was about 56 µm indicating the tape cast alumina dental crowns are clinically applicable.

Study on Aqueous Polymer Isocyanate Adhesive Pressing Changbai Mountain Abies NEPHROLEPIS Furniture Parts

2014 ◽  
Vol 1079-1080 ◽  
pp. 54-57
Author(s):  
Xiao Yi Niu
Keyword(s):  
Polyvinyl Alcohol ◽  
Room Temperature ◽  
Water Resistance ◽  
Solid Wood ◽  
Toluene Diisocyanate ◽  
Environment Friendly ◽  
Furniture Manufacturing ◽  
Aqueous Polymer ◽  
Water Based ◽  
Reaction Processes

Furniture with people's lives, but furniture is a combination of furniture components, in addition to solid wood, other furniture parts are pressed together by a variety of plates, environmentally friendly water-based isocyanate adhesive by furniture manufacturing loves. Waterborne isocyanate adhesive using toluene diisocyanate (TDI) crosslinked polyvinyl alcohol (PVA) chemical reaction processes and reactants properties, good water resistance polyvinyl alcohol emulsion preparation, room temperature curing, water-resistant, resistant to moisture and good bonding high-intensity environment-friendly wood adhesives.

scholarly journals Effect of polyurethane/polyvinyl alcohol coating on mechanical properties of polyester harness cord

e-Polymers ◽  
2021 ◽  
Vol 22 (1) ◽  
pp. 38-47
Author(s):  
Kaifang Xie ◽  
Xinjun Bao ◽  
Hengshu Zhou ◽  
Bin He ◽  
Yuegang Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Contact Angle ◽  
Polyvinyl Alcohol ◽  
Tensile Properties ◽  
Dynamic Contact Angle ◽  
Dynamic Contact ◽  
Bending Properties ◽  
Water Based ◽  
Before And After ◽  
Pet Fibers

Abstract In this article, water-based polyurethane (PU) with different concentrations and partial alcoholysis polyvinyl alcohol (PVA) were used to coat polyester (PET) harness cord in turn. The surface and mechanical properties of harness cord before and after coating were evaluated by performing the tests of dynamic contact angle, morphology observation, bending properties, tensile properties, and wearability. It was found that the surface properties of 1.5% PU-coated harness cord tended to be stable, and the mechanical properties of PU(1.5%)/PVA-coated harness cord were optimal. Compared with PVA-coated harness cord, the wearability of PU(1.5%)/PVA-coated harness cord showed a great increment up to 135.7%. This was because the PU coating effectively improved the interfacial properties between the PVA coating and the hydrophobic PET fibers and enhanced the adhesion of the PVA coating to the PET fibers.

scholarly journals Water-based synthesis of photocrosslinked hyaluronic acid/polyvinyl alcohol membranes via electrospinning

RSC Advances ◽  
2020 ◽  
Vol 10 (52) ◽  
pp. 31271-31279
Author(s):  
Karine Cappuccio de Castro ◽  
Jonny Burga-Sánchez ◽  
Maria Gabriela Nogueira Campos ◽  
Lucia Helena Innocentini Mei
Keyword(s):  
Hyaluronic Acid ◽  
Polyvinyl Alcohol ◽  
Organic Solvent ◽  
Biomedical Applications ◽  
Electrospinning Method ◽  
Water Based

Homogeneous nanofibers and non-cytotoxic HA/PVA membranes were produced by conventional electrospinning method followed by photocrosslinking process, without using any organic solvent. The membranes showed great potential for biomedical applications.

scholarly journals The Use of Laminates of Commercially Available Fabrics for Anti-Stab Body-Armor

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1077
Author(s):  
Nguyen Quang Khuyen ◽  
Phan Vu Duc Han ◽  
Ngoc Tuan Nguyen ◽  
Quoc Bao Le ◽  
Madis Harjo ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Scanning Electron Microscopy ◽  
Polyvinyl Alcohol ◽  
Crucial Role ◽  
Urea Formaldehyde ◽  
The Other ◽  
Body Armor ◽  
Water Based ◽  
Scanning Electron

Modern personal protective armor has been generally based on the Kevlar fabrics, with the main goal to offer defense against bullets. In addition to the high cost and poor processability, Kevlar has the disadvantage of limited stab-proofing capability. On the other hand, a large number of crimes involving deadly injures represent knife attacks. Our goal in this work was to investigate composites based on traditional commercially available fabrics of linen and silk, using different adhesives-polymers for forming laminates. The silk composites also contained different amounts of in-woven polyester. Three different water-based adhesives of polyurethane, urea formaldehyde and polyvinyl alcohol were considered. It was found, that besides the strength of the fabrics themselves, the adhesives polymers played a crucial role in the obtained performance of the laminates. The laminates were characterized in their mechanical properties, as well as with scanning electron microscopy and FTIR spectroscopy.

Cryogels based on composition chitosan–polyvinyl alcohol: synthesis and properties

2019 ◽  
Vol 5 (4) ◽  
pp. 56-63
Author(s):  
E.V. Dikhtiaruk ◽  
◽  
V.V. Paientko ◽  
A.K. Matkovsky ◽  
Yu.N. Nichiporuk ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Alcohol Synthesis
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