J. López
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View article: Design and Characterization of Sustainable PLA-Based Systems Modified with a Rosin-Derived Resin: Structure–Property Relationships and Functional Performance
Design and Characterization of Sustainable PLA-Based Systems Modified with a Rosin-Derived Resin: Structure–Property Relationships and Functional Performance Open
The design of sustainable polymer systems with tunable properties is essential for next-generation functional materials. This study examines the influence of a phenol-free modified rosin resin (Unik Print™ 3340, UP)—a maleic anhydride- and…
View article: Polybutylene succinate film incorporating essential oil as active packaging materials to prolong tomatoes shelf-life
Polybutylene succinate film incorporating essential oil as active packaging materials to prolong tomatoes shelf-life Open
The present research work deals with the laboratory scale manufacturing of thin films based on polybutylene succinate (PBS), a sustainably obtained biodegradable polyester (bioplastic), with the aim to propose their use in food packaging i…
View article: Sustainable Catalysts from Industrial FeO Waste for Pyrolysis and Oxidation of Hospital Polypropylene in Cartagena
Sustainable Catalysts from Industrial FeO Waste for Pyrolysis and Oxidation of Hospital Polypropylene in Cartagena Open
During the COVID-19 pandemic, polypropylene waste generated in hospitals increased significantly. However, conventional strategies for the final disposal of environmental waste, such as incineration, proved inefficient due to the generatio…
View article: Peach Gum Polysaccharide as an Additive for Thermoplastic Starch to Produce Water-Soluble Films
Peach Gum Polysaccharide as an Additive for Thermoplastic Starch to Produce Water-Soluble Films Open
Thermoplastic starch (TPS) has gained considerable attention during the last few years in developing starch-based biodegradable food packaging materials or edible coatings due to its high availability and low cost. TPS is manufactured from…
View article: A Macroscopic Interpretation of the Correlation between Electrical Percolation and Mechanical Properties of Poly-(Ethylene Vinyl Acetate)/Zn Composites
A Macroscopic Interpretation of the Correlation between Electrical Percolation and Mechanical Properties of Poly-(Ethylene Vinyl Acetate)/Zn Composites Open
Elastic composites were prepared using a procedure involving hot plates and zinc powder that was directly dispersed into an EVA matrix. The correlation between the zinc content and the conductive properties of the material was studied via …
View article: Influence of phenolic free modified rosin resin on the thermomechanical behavior of poly (lactic acid) having different crystallinities and molecular weights
Influence of phenolic free modified rosin resin on the thermomechanical behavior of poly (lactic acid) having different crystallinities and molecular weights Open
The influence of a highly complex modified commercial rosin resin (Unik Print, UP) on the thermomechanical performance of four commercial grades of polylactic acid (PLA) has been evaluated and compared. Comparative experiments were carried…
View article: Evaluation of Thermoplastic Starch Contamination in the Mechanical Recycling of High-Density Polyethylene
Evaluation of Thermoplastic Starch Contamination in the Mechanical Recycling of High-Density Polyethylene Open
This research highlights the importance of addressing bioplastic contamination in recycling processes to ensure the quality of recycled material and move towards a more sustainable circular economy. Polyethylene (PE) is a conventional plas…
View article: Review of: "Analytical Study and Amelioration of Plastic Pavement Material Quality"
Review of: "Analytical Study and Amelioration of Plastic Pavement Material Quality" Open
The caps are made of polyethylene or
View article: Use of Raw Peach Gum as a Sustainable Additive for the Development of Water-Sensitive and Biodegradable Thermoplastic Starch Films
Use of Raw Peach Gum as a Sustainable Additive for the Development of Water-Sensitive and Biodegradable Thermoplastic Starch Films Open
In this study, formulations of thermoplastic starch (TPS) with 5, 10, and 15 parts per hundred resin (phr) of raw peach gum (PG) were prepared by melt extrusion followed by injection molding to obtain standard specimens for characterizatio…
View article: Control of Biodegradability Under Composting Conditions and Physical Performance of Poly (Lactic Acid) Based Materials Modified with Phenolic-Free Rosin Resin
Control of Biodegradability Under Composting Conditions and Physical Performance of Poly (Lactic Acid) Based Materials Modified with Phenolic-Free Rosin Resin Open
Biodegradable materials based on poly (lactic acid) (PLA) and a phenolic free modified rosin resin were obtained and studied to control the biodegradability under composting conditions of the materials. The resin was blended in concentrati…
View article: Pentaerythritol and Glycerol Esters Derived from Gum Rosin as Bio-Based Additives for the Improvement of Processability and Thermal Stability of Polylactic Acid
Pentaerythritol and Glycerol Esters Derived from Gum Rosin as Bio-Based Additives for the Improvement of Processability and Thermal Stability of Polylactic Acid Open
Gum rosin esters are some of the most common gum rosin derivatives used in different applications, such as coatings, paper, varnishes, chewing gum, and food industries. In this study, gum rosin esters are used as additives for polylactic a…
View article: Preparation and Characterization of New Bioplastics Based on Polybutylene Succinate (PBS)
Preparation and Characterization of New Bioplastics Based on Polybutylene Succinate (PBS) Open
Sea and environmental pollution due to microplastics are global problems that in recent years have attracted particular interest in the scientific community. The increase in the world population and the consequent consumerism of non-reusab…
View article: A New Route of Valorization of Petrochemical Wastewater: Recovery of 1,3,5-Tris (4-tert-butyl-3-hydroxy-2,6-dimethyl benzyl)–1,3,5-triazine-2,4,6-(1H,3H,5H)-trione (Cyanox 1790) and Its Subsequent Application in a PP Matrix to Improve Its Thermal Stability
A New Route of Valorization of Petrochemical Wastewater: Recovery of 1,3,5-Tris (4-tert-butyl-3-hydroxy-2,6-dimethyl benzyl)–1,3,5-triazine-2,4,6-(1H,3H,5H)-trione (Cyanox 1790) and Its Subsequent Application in a PP Matrix to Improve Its Thermal Stability Open
The various chemicals in industrial wastewater can be beneficial for improving its circularity. If extraction methods are used to capture valuable components from the wastewater and then recirculate them throughout the process, the potenti…
View article: Influence of the Presence of Poly(butylene succinate) in the Poly(ethylene terephthalate) Recycling Process
Influence of the Presence of Poly(butylene succinate) in the Poly(ethylene terephthalate) Recycling Process Open
Poly(butylene succinate) (PBS) is one of the contaminants in the Poly(ethylene terephthalate) (PET) recycling process. It is known that high contents of PBS in PET significantly reduce PET properties, but the effect of low contents on PET …
View article: Recovery of (Z)-13-Docosenamide from Industrial Wastewater and Its Application in the Production of Virgin Polypropylene to Improve the Coefficient of Friction in Film Type Applications
Recovery of (Z)-13-Docosenamide from Industrial Wastewater and Its Application in the Production of Virgin Polypropylene to Improve the Coefficient of Friction in Film Type Applications Open
Additives play an important role in the production of plastic materials through their application, in which the mechanical, thermal, and physical properties of polymers are improved, making them last longer and be more resistant. During th…
View article: Mechanical, Dynamic-Mechanical, Thermal and Decomposition Behavior of 3D-Printed PLA Reinforced with CaCO3 Fillers from Natural Resources
Mechanical, Dynamic-Mechanical, Thermal and Decomposition Behavior of 3D-Printed PLA Reinforced with CaCO3 Fillers from Natural Resources Open
This study evaluates the effect of CaCO3 fillers extracted from waste eggshells on 3D-printed PLA performance. Samples of neat PLA and PLA reinforced with CaCO3 fillers embedded with different wt.% were prepared using an FDM (fused deposit…
View article: Comparative characterization of gum rosins for their use as sustainable additives in polymeric matrices
Comparative characterization of gum rosins for their use as sustainable additives in polymeric matrices Open
There is a growing interest in the use of non‐polluting compounds, which come from renewable sources, and which performance in their scope is equivalent to their synthetic similes. In this work, five types of rosins from different sources …
View article: An approach to Reverse Engineering Methodology for Part Reconstruction with Additive Manufacturing
An approach to Reverse Engineering Methodology for Part Reconstruction with Additive Manufacturing Open
In diverse sectors such as aerospace, transport or energy, equipment is several decades old. Due to their extended lifespan, technical and manufacturing documentation might be inaccessible or inexistent. Manufacturing process problems, wea…
View article: Gum Rosin as a Size Control Agent of Poly(Butylene Adipate-Co-Terephthalate) (PBAT) Domains to Increase the Toughness of Packaging Formulations Based on Polylactic Acid (PLA)
Gum Rosin as a Size Control Agent of Poly(Butylene Adipate-Co-Terephthalate) (PBAT) Domains to Increase the Toughness of Packaging Formulations Based on Polylactic Acid (PLA) Open
Gum rosin (GR) was used as a natural additive to improve the compatibility between polylactic acid, PLA, and poly(butylene adipate-co-terephthalate, PBAT, blended with 20 wt.% of PBAT (PLA/PBAT). The PBAT was used as a soft component to in…
View article: Films Based on Thermoplastic Starch Blended with Pine Resin Derivatives for Food Packaging
Films Based on Thermoplastic Starch Blended with Pine Resin Derivatives for Food Packaging Open
Completely biobased and biodegradable thermoplastic starch (TPS) based materials with a tunable performance were prepared for food packaging applications. Five blends were prepared by blending TPS with 10 wt%. of different pine resins deri…
View article: Bilayer films of poly(ε‐caprolactone) electrosprayed with gum rosin microspheres: Processing and characterization
Bilayer films of poly(ε‐caprolactone) electrosprayed with gum rosin microspheres: Processing and characterization Open
Bilayer systems, consisting of electrosprayed gum rosin microspheres (eGR) and poly(ε‐caprolactone) (PCL), were prepared. First, the electrospraying processing conditions of GR in two different solvents, dichloromethane, and chloroform, we…
View article: Films Based on Mater-Bi® Compatibilized with Pine Resin Derivatives: Optical, Barrier, and Disintegration Properties
Films Based on Mater-Bi® Compatibilized with Pine Resin Derivatives: Optical, Barrier, and Disintegration Properties Open
Mater-Bi® NF866 (MB) was blended with gum rosin and two pentaerythritol esters of gum rosin (labeled as LF and UT), as additives, to produce biobased and compostable films for food packaging or agricultural mulch films. The films were prep…
View article: Evaluation of Vineyard Cropping Systems Using On-Board RGB-Depth Perception
Evaluation of Vineyard Cropping Systems Using On-Board RGB-Depth Perception Open
A non-destructive measuring technique was applied to test major vine geometric traits on measurements collected by a contactless sensor. Three-dimensional optical sensors have evolved over the past decade, and these advancements may be use…
View article: Improvement of PBAT Processability and Mechanical Performance by Blending with Pine Resin Derivatives for Injection Moulding Rigid Packaging with Enhanced Hydrophobicity
Improvement of PBAT Processability and Mechanical Performance by Blending with Pine Resin Derivatives for Injection Moulding Rigid Packaging with Enhanced Hydrophobicity Open
Polybutylene adipate-co-terephthalate (PBAT) is a biodegradable polymer with good features for packaging applications. However, the mechanical performance and high prices of PBAT limit its current usage at the commercial level. To improve …
View article: Silane-Functionalized Sheep Wool Fibers from Dairy Industry Waste for the Development of Plasticized PLA Composites with Maleinized Linseed Oil for Injection-Molded Parts
Silane-Functionalized Sheep Wool Fibers from Dairy Industry Waste for the Development of Plasticized PLA Composites with Maleinized Linseed Oil for Injection-Molded Parts Open
Poly(lactic acid) (PLA) was plasticized with maleinized linseed oil (MLO) and further reinforced with sheep wool fibers recovered from the dairy industry. The wool fibers were firstly functionalized with 1 and 2.5 phr of tris(2-methoxyetho…