Discharge Plasma Treatment as an Efficient Tool for Improved Poly(lactide) Adhesive–Wood Interactions

Mamiński, M.; Novák, Igor; Mičušík, Matej; Małolepszy, Artur; Toczyłowska-Mamińska, Renata

doi:10.3390/ma14133672

Cited by 9 publications

(4 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the determined strengths are averaged, but the values are still in the range typical for thermoplastic adhesives: poly(vinyl acetate) 0.5–3.7 MPa [ 32 ], poly(oxetane)s 0.4–1.3 MPa [ 33 ] or poly(lactide)-poly(caprolactone)-based and EVA (0.6–1.5 MPa) [ 34 ] or HDPE 1.6–2.9 MPa [ 35 ]. The computed variation coefficients for the respective series remain at the levels comparable to those found in the literature for hot-melt adhesives (i.e., 20–30%) [ 36 ].…”

Section: Resultssupporting

confidence: 74%

Synthesis of Polyhydroxyurethanes—Experimental Verification of the Box–Behnken Optimization Model

2022

View full text Add to dashboard Cite

Polyurethanes are one of the most important groups of polymers for numerous sectors of industry. Their production involves using dangerous components (diisocyanates), thus, in the search for safer synthetic routes, alternative methods yielding non-isocyanate polyurethanes (NIPU) have been investigated. In this study, the synthesis of polyhydroxyurethane from cyclic carbonates was performed. A three-factor, three-level Box–Behnken experimental design was constructed and the reaction time, temperature and reagents’ molar ratio were the independent variables. The built model revealed that the viscosity was influenced by all three independent factors, while the mechanical properties and glass transition temperature of the PHUs were affected by the reagents’ ratios. An experimental verification of the model proved its accuracy as the mechanical strength and glass transition temperature deviated from the modeled values, by 15% and 7%, respectively.

show abstract

Section: Resultssupporting

confidence: 74%

Synthesis of Polyhydroxyurethanes—Experimental Verification of the Box–Behnken Optimization Model

2022

View full text Add to dashboard Cite

show abstract

“…FDM technology assumes the use of thermoplastic materials for printing. Polylactic acid (PLA) material is a biodegradable material with a low shrinkage rate and good stability when printing large-size models [ 9 , 15 , 16 , 17 ]. Thermoplastic polyurethane (TPU) is one of the most versatile engineering thermoplastics materials with elastomeric properties [ 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

The Influence of 3D Printing Parameters on Adhesion between Polylactic Acid (PLA) and Thermoplastic Polyurethane (TPU)

2021

View full text Add to dashboard Cite

A 3D printer in FDM technology allows printing with two nozzles, which creates an opportunity to produce multi-material elements. Printing from two materials requires special consideration of the interface zone generated between their geometrical boundaries. This article aims to present the possibility of printing with PLA and TPU using commercially available filaments and software to obtain the best possible bond strength between two different polymers with respect to printing parameters, surface pattern (due to the material contact surface’s roughness), and the order of layer application. The interaction at the interface of two surfaces of two different filaments (PLA-TPU and TPU-PLA) and six combinations of patterns were tested by printing seven replicas for each. A total of 12 combinations were obtained. By analyzing pairs of samples (the same patterns, different order of materials), the results for the TPU/PLA samples were better or very close to the results for PLA/TPU. The best variants of pattern combinations were distinguished. Well-chosen printing parameters can prevent a drop in parts efficiency compared to component materials (depending on the materials combination).

show abstract

“…The efficiency of plasma treatment on different materials has been assessed in various studies, such as in [ 33 ] treating poly(lactide) (PLA) films by diffuse coplanar surface barrier discharge plasma, in [ 34 ] it was treated by oxygen plasma the silicon, silicon dioxide and glass, in [ 35 ] it was treated biaxially oriented polypropylene (BOPP) film by corona discharge or [ 36 ] epoxy polymer in air DBD and gliding arc, the results showing significant effects of the plasma treatment on polymeric surfaces. The most common surface modifications reported refer to wettability increasing of treated surfaces, surface oxidation, increase of adhesion forces and morphological changes,…”

Section: Discussionmentioning

confidence: 99%

Treatment of Polymeric Films Used for Printed Electronic Circuits Using Ambient Air DBD Non-Thermal Plasma

et al. 2022

View full text Add to dashboard Cite

This study aims to present the properties of the polymeric films after being subjected to DBD plasma treatment in atmospheric conditions. Three different commercial films of polyester (Xerox Inkjet transparencies and Autostat CUS5 Clear film) and polycarbonate (Lexan™ 8010 MC) have been considered for the tests. The surface wettability has been evaluated based on static water contact angle (WCA) for different treatment times varying between 0.2 s and 30 s, the results revealing a maximum WCA decrease compared to a pristine of up to 50% for Xerox films, 75% for Autostat and 70% for Lexan. The persistence of the hydrophilic effect induced by the plasma treatment has also been verified for up to 72 h of storage after treatment, the results indicating a degradation of the treatment effects starting with the first hours after the treatment. The WCA stabilizes to a value inferior to the one corresponding to pristine in the first 24 h after plasma treatment. The adhesion forces, as well as preliminary surface morphology evaluations have been determined for the considered films using atomic force microscopy (AFM). The adhesion forces are increased together with the prolongation of the plasma treatment application time, varying from initial values of 165 nN, 58 nN and 204 nN to around 390 nN, 160 nN and 375 nN for Xerox, Autostat and Lexan films, respectively, after 5 s of DBD treatment. For the considered materials, the results revealed that the plasma treatment determines morphological changes of the surfaces indicating an increase in surface roughness.

show abstract

Discharge Plasma Treatment as an Efficient Tool for Improved Poly(lactide) Adhesive–Wood Interactions

Cited by 9 publications

References 43 publications

Synthesis of Polyhydroxyurethanes—Experimental Verification of the Box–Behnken Optimization Model

Synthesis of Polyhydroxyurethanes—Experimental Verification of the Box–Behnken Optimization Model

The Influence of 3D Printing Parameters on Adhesion between Polylactic Acid (PLA) and Thermoplastic Polyurethane (TPU)

Treatment of Polymeric Films Used for Printed Electronic Circuits Using Ambient Air DBD Non-Thermal Plasma

Contact Info

Product

Resources

About