Looking for new, sustainable ways to utilize plastics is still a very pertinent topic considering the amount of produced in world. One newest and intriguing possibility use insects biodegradation plastics, which can be named entomoremediation. The aim this work was demonstrate ability insect Tenebrio molitor biodegrade different, real plastic waste. types waste used were: remains thermal building insulation polystyrene foam (PS), two polyurethane (kitchen sponge as PU1 commercial PU2),...

This study compares the degradation process of unsaturated polyester resin (UPR) and vinyl ester (VER) their biocomposites with kraft lignin. In order to degradation, accelerated aging, immersion in different solvents, microwave radiation high temperature were applied. The results show that, depending on conditions, assumes a course. VER is more chemically resistant than UPR resin. case composites immersed an aggressive solvent (acetone), it can be observed that polymer matrix degraded,...

The paper investigates the synthesis of eco-friendly composites and their properties before after immersion in solvents different chemical natures. For preparation, unsaturated polyester resin (UPR) based on recycled poly (ethylene terephthalate) (PET) peanut shell powder (PSP) were used. Polymerization was carried out presence environmentally friendly polymeric cobalt. Distilled water, acetone, 10% hydrochloric acid, 40% sodium hydroxide, toluene, 2% carbonate used as resistance test....

W niniejszej pracy zbadano wpływ mineralnych napełniaczy nieorganicznych, tj. dwóch rodzajów boehmitu (Catapal B i Pural SB) na wybrane właściwości miękkich kompozytów poli(chlorku winylu). Zbadano palność, twardość w skali Shore'a oraz przy rozciąganiu otrzymanych materiałów. Na podstawie uzyskanych wyników stwierdzono, że rodzaj ilość dodatku uniepalniającego znacząco wpływają kompozytów.

New transparent thermoplastic polyurethane elastomers (TPURs) with the hard-segment content of ≈50 mass % were synthesized by one-step melt polyaddition 1,1'-methanediylbis(4-isocyanatocyclohexane), 2,2'-methylenebis[(4,1-phenylene)-methylenesulfanediyl]diethanol (diol E), 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid (DMPA), a poly(oxytetramethylene) diol M ¯ n = 1000 g/mol (PTMO), or poly(hexametylene carbonate) 860 (PHCD). Herein, I prepared TPURs in which 20, 40, and 60 mol E was...

The aim of the present work is to investigate effect halloysite nanotubes (HNT) on mechanical properties low-density polyethylene composites modified by maleic anhydride-grafted PE (PE-graft-MA). Polyethylene nanocomposites were prepared using an injection molding machine, Arburg Allrounder 320 C 500-170; HNT content was varied at 0 wt %, 2 4 % and 6 PE-graft-MA 5 %. examined for their ultimate tensile stress, strain hardness, impact strength, melt flow rate, heat deflection temperature,...

Herein the synthesis, characterization, and study of spectroscopic, thermal, thermo-mechanical properties polymeric composites are presented. The were obtained in special molds (8 × 10 cm) based on commercially available epoxy resin Epidian® 601 cross-linked by 10% w/w triethylenetetramine (TETA). To improve thermal mechanical synthetic resins, natural fillers form minerals from silicate cluster kaolinite (KA) or clinoptilolite (CL) added to composites. structures materials confirmed...

This paper presents a characterization of plastic extrusion process and the selected properties three biodegradable types, in comparison with LDPE (low-density polyethylene). The four plastics include: LDPE, commercial name Malen E FABS 23-D022; potato starch based (TPS-P), BIOPLAST GF 106/02; corn (TPS-C), BioComp®BF 01HP; polylactic acid (polylactide) (PLA), 7210. Plastic films determined geometric parameters (thickness foil layer width flattened sleeve) were produced from these materials...

The paper investigates the synthesis of green composites and their properties before after laboratory accelerated aging tests. Materials were made unsaturated polyester resins (UPRs) based on recycled poly(ethylene terephthalate) (PET) wood flour (WF). effect dibenzylideneacetone (dba) addition mechanical thermomechanical was also determined. Green obtained using environment friendly polymeric cobalt as an accelerator. Before exposition to xenon lamp radiation, UPRs physically modified by WF...

Four different plastics were tested: potato starch based plastic (TPS-P)–BIOPLAST GF 106/02; corn (TPS-C)–BioComp BF 01HP; polylactic acid (polylactide) (PLA)—BioComp 7210 and low density polyethylene, trade name Malen E FABS 23-D022; as a petrochemical reference sample. Using the blown film extrusion method various screw rotational speeds, films obtained tested, result of which following determined: breaking stress, strain at break, static dynamic friction coefficient in longitudinal...

This study presents the preparation and thermo-mechanical characteristics of polymeric blends based on di(meth)acrylates monomers. Bisphenol A glycerolate diacrylate (BPA.GDA) or ethylene glycol dimethacrylate (EGDMA) were used as crosslinking Methyl methacrylate (MMA) was an active solvent in both copolymerization approaches. Commercial polycarbonate (PC) a modifying soluble additive. The method polymerization by using UV initiator (Irqacure® 651) proposed. Two parallel sets MMA-based...

Within this study, the ZrO2/lignin and ZrO2-SiO2/lignin hybrid materials were obtained for first time. The mechanical grinding method was used purpose. In order to determine properties of lignin-based hybrids components produce them, as well evaluate efficiency their preparation, authors such research techniques scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), elemental analysis, porous structure analysis thermal stability assessment (TGA/DTG). next step...

This work describes the synthesis and structure of new segmented polyurethanes (SPURs) formed from an aliphatic diisocyanate [1,1′‐methanediylbis(4‐isocyanatocyclohexane] ( Desmodur W ® ) unconventional sulfur‐containing chain extender [2,2′‐methylenebis([4,1‐phenylene]methylenesulfanediyl)diethanol]. Soft segments were poly(oxytetramethylene)diol = 1000 g/mol (PTMO) or poly(hexametylene carbonate)diol 860 (PHCD). For all polymers, structure, physicochemical, thermal, mechanical properties...

New thermoplastic segmented polyurethanes were obtained by a one-step melt polyaddition using 40, 50 and 60 mol% poly(hexane-1,6-diyl carbonate) diol of $$\bar{M}_{n} = 860$$ g mol−1, 1,1′-methanediylbis(4-isocyanatobenzene) 2,2′-[sulfanediylbis(benzene-1,4-diyloxy)]diethanol, 2,2′-[oxybis(benzene-1,4-diylsulfanediyl)]diethanol or 2,2′-[sulfanediylbis(benzene-1,4-diylsulfanediyl)]diethanol as chain extender. FTIR, atomic force microscopy, differential scanning calorimetry thermogravimetry...

This paper presents the properties of wood-resin composites. For improving their antibacterial character, silver nanoparticles were incorporated into structures. The obtained materials analyzed in vitro for anti-biofilm potency contact with aerobic Gram-positive Staphylococcus aureus and epidermidis; Gram-negative Escherichia coli Pseudomonas aeruginosa. These pathogens are responsible various infections, including those associated healthcare. effect incorporation on mechanical...

The new segmented poly(thiourethane-urethane)s (PTURs) based on 1,1'-methanediylbis(4-isocyanatocyclohexane) (HMDI, Desmodur W®), polycarbonate diol (PCD, Desmophen C2200) and (methanediyldibenzene-4,1-diyl)dimethanethiol were synthesized by one-step melt polyaddition method. obtained PTURs, with a content of 30-60 wt% the hard segments (HS), tested in which influence changes HS their properties was determined. polymers characterized Fourier transform infrared spectroscopy (FTIR), gel...

This work presents the synthesis and characterization of new TPUs obtained by melt polyaddition using 1,1'-methanediylbis(4-isocyanatocyclohexane) (HMDI, Desmodur W®), a unconventional chain extender, i.e., (methanediyldibenze-ne-4,1-diyl)dimethanediol, five types soft segments differing in structure molar masses. The polymers was determined (by Fourier transform infrared spectroscopy X-ray diffraction methods), physicochemical (reduced viscosity, density), optical (UV-VIS), processing (MFR)...

This paper discusses a new synthesis of bisphenol A-free polycarbonates based on four aliphatic-aromatic systems. In the first stage, different types monomers (with/without sulfur) derived from diphenylmethane were synthesized. Then, prepared in reactions with diphenyl carbonate (DPC) by transesterification and polycondensation reactions. Three catalysts (zinc acetate, 4-(dimethylamino)pyridine benzyltriethylammonium chloride) tested. The structures compounds confirmed Nuclear Molecular...

Abstract New thermoplastic polyurethane elastomers (TPUs) were synthesized by a one-step melt polyaddition from poly(oxytetramethylene) diol of M¯n = 2000 g/mol as the soft segment, 1,1’-methanediylbis(4-isocyanatocyclohexane) (HMDI, Desmodur W®), and 2,2’-[methanediylbis(benzene-4,1-diylmethanediylsulfanediyl)]diethanol (diol E) or 6,6’-[methanediylbis(benzene-4,1-diylmethanediylsulfanediyl)]dihexane-1-ol H) unconventional chain extenders. The effects kind amount polymer extender used on...

New segmented poly(thiourethane-urethane)s (SPTURs) were synthesized by the reaction of 1,1′-methanediylbis (4-isocyanatocyclohexane) (Desmodur W®, HMDI) and poly(ε-caprolactone)diol (PCL) (methanediyldibenzene-4,1-diyl)dimethanethiol as nonconventional polymer chain extender. FTIR spectroscopy was used for structural analysis obtained polymers. The molecular weight distribution examined GPC chromatography. Based on measured contact angles, free surface energy parameters calculated. Thermal...

Abstract The synthesis and characterization of luminescent hybrid composites based on bisphenol A glycerolate (1 glycerol/phenol) diacrylate (BPA-Acr) as a cross-linking monomer N -vinylpyrrolidone (NVP) an active diluent, in the presence UV initiator (Irgacure 651), are presented. Eu(III) Tb(III) carboxylate complexes were added components composites. In their preparation, constant concentration (1%) BPA-Acr to NVP (10:3) ratio applied. structures obtained materials confirmed by infrared...

Abstract The paper studies thermal characteristics of new polycarbonates obtained using the bisphenol A-free technology. Thermal tests were carried out in a wide temperature range DSC (diffrential scanning calorimetry) and TG (thermogravimetry) analyses. data confirmed that all materials are homogeneous whereas endothermic peaks responsible for melting. Additionally, analysis released gases was made by means infrared spectroscopic analysis. Our research proved relatively heat resistant. In...

New thermoplastic poly(ether-urethane) elastomers were synthesized by one-step melt poly addition from poly(oxytetramethylene)diol of [Formula: see text] = 2000 g mol −1 as soft segment, 1,1′-methanediylbis(4-isocyanatocyclohexane) ( Desmodur W®), and 2,2′-methylenebis[(4,1-phenylene)methylenesulfanediyl]diethanol or 6,6′-methylenebis[(4,1-phenylene)methylenesulfanediyl]dihexan-1-ol unconventional chain extenders, 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid an ionic extender. The...