A5088089863- Polymer composites and self-healing
- biodegradable polymer synthesis and properties
- Lignin and Wood Chemistry
- Carbon dioxide utilization in catalysis
- Flame retardant materials and properties
- Electrospun Nanofibers in Biomedical Applications
- Silicone and Siloxane Chemistry
- Natural Fiber Reinforced Composites
- Biodiesel Production and Applications
- Polymer Foaming and Composites
- Engine and Fuel Emissions
- Polymer Nanocomposites and Properties
- Lubricants and Their Additives
- Synthetic Organic Chemistry Methods
- Polydiacetylene-based materials and applications
- Additive Manufacturing and 3D Printing Technologies
- Aerogels and thermal insulation
- Asphalt Pavement Performance Evaluation
- Edible Oils Quality and Analysis
- Photopolymerization techniques and applications
- Odor and Emission Control Technologies
- Synthesis and properties of polymers
- Adsorption, diffusion, and thermodynamic properties of materials
- Materials Engineering and Processing
- Catalysis and Hydrodesulfurization Studies
Cracow University of Technology
2015-2024
Institute of Polymers
2015
Nowadays, a large number of polyurethane (PU) system modifications relies on the use different bio-polyols. In this context, two bio-based polyols, one synthesized from lignin and rapeseed oil were evaluated in replacement petrochemical polyol at an amount 10–30 wt.% rigid foam formulations (RPU). The lignin-based was produced by oxypropylation organosolv (ALCELL) oil-based prepared two-step method epoxidation followed oxirane ring opening with diethylene glycol. bio-polyol increased...
The reported study concerns the introduction of renewable raw materials into formulation rigid polyurethane foams in quest for sustainable development polymer composites. In this study, foam composites were prepared using 75 wt.% rapeseed oil-based polyol and 15 parts per hundred (php) natural fillers such as chokeberry pomace, raspberry seeds, well hazelnut walnut shells. influence used on foaming process, structure, properties was investigated a FOAMAT analyzer wide selection...
The primary goal of the research presented here was to evaluate possibility chemolysis polyurethane biofoams synthesized from vegetable oil-based biopolyols with different chemical structures. As a reference material, foam in 100 % petrochemical polyol used. Chemolysis foams conducted by using diethylene glycol as solvent 1.5:1 wt ratio biopolyurethane scraps glycol. reaction carried out at 180 °C for min presence potassium hydroxide catalyst. results were evaluated terms hydroxyl number,...
Rigid polyurethane foams were successfully prepared by blending up to 70 wt% of two different palm oil-based bio-polyols with a petrochemical polyether polyol. The synthesized epoxidation–oxirane ring-opening process using water (PP102) and diethylene glycol (PP147), respectively. Due the high viscosity both reactive mixture was heated start foaming reaction at about 50 °C. Under these conditions, gelling reactions speed as amount PP147 increases but slow down great extent when PP102 is...
Three different kinds of polyols from rapeseed oil were synthesised and characterized during this study. Afterwards, using these rigid polyurethane foams produced, which are used as thermal insulation material in construction industry production refrigerators. Polyols by epoxidation, transamidization transesterification methods. One based polyol was synthesized partial epoxidation the double bonds fatty acid chains overall opening oxirane rings diethylene glycol. Other two methods ester...
The most common sustainable solution for polyurethane (PU) materials is their production using renewable resources. Polyols derived from biomass and recycled polymers are the promising way to do that. This study compares five different polyols as a possible raw material of highdensity rigid PU foams automotive application. goal our was show that biobased suitable replacement petrochemical products. influence chemical structure on polymer matrix foam properties investigated. Two sources...