ArticleMaterials (Basel, Switzerland)2020
Rigid Polyurethane Foams Based on Bio-Polyol and Additionally Reinforced with Silanized and Acetylated Walnut Shells for the Synthesis of Environmentally Friendly Insulating Materials.
Article in Materials (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 26 citations in OpenAlex.
- Different Forms of the AdaptogenPolymers · 2026Article
- Investigation of Hardness, Microstructure, and Mechanical Properties of Goat Horn Powder-Reinforced Wood-like Polyurethane Composites.Polymers · 2026Article
- Thermal Stability and Flame Retardancy of Rigid Polyurethane Foam Composites Filled with Phase-Change Microcapsule.Materials (Basel, Switzerland) · 2024Article
- Article
- A novel reaction mechanism for the synthesis of coconut oil-derived biopolyol for rigid poly(urethane-urea) hybrid foam application.RSC advances · 2023Article
- Research on the Dynamic Response Properties of Nonlethal Projectiles for Injury Risk Assessment.ACS omega · 2022Article
- Article
- Scale-Up and Testing of Polyurethane Bio-Foams as Potential Cryogenic Insulation Materials.Materials (Basel, Switzerland) · 2022Article
- Review
- Bio-Based Rigid Polyurethane Foam Composites Reinforced with Bleached Curauá Fiber.International journal of molecular sciences · 2021Article
- Special Issue: "Environmentally Friendly Polymeric Blends from Renewable Sources".Materials (Basel, Switzerland) · 2021Article
- Polyurethane Composites Reinforced with Walnut Shell Filler Treated with Perlite, Montmorillonite and Halloysite.International journal of molecular sciences · 2021Article
- Article
- Biocomposites of Epoxidized Natural Rubber/Poly(lactic acid) Modified with Natural Fillers (Part I).International journal of molecular sciences · 2021Article
- Article
- Thermal Insulation and Sound Absorption Properties of Open-Cell Polyurethane Foams Modified with Bio-Polyol Based on Used Cooking Oil.Materials (Basel, Switzerland) · 2020Article
- Cellulose Modification for Improved Compatibility with the Polymer Matrix: Mechanical Characterization of the Composite Material.Materials (Basel, Switzerland) · 2020Article
- Effect of Basalt Powder Surface Treatments on Mechanical and Processing Properties of Polylactide-Based Composites.Materials (Basel, Switzerland) · 2020Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Rigid polyurethane (PUR) foams produced from walnut shells-derived polyol (20 wt.%) were successfully reinforced with 2 wt.% of non-treated, acetylated, and silanized walnut shells (WS). The impact of non-treated and chemically-treated WS on the morphology, mechanical, and thermal characteristics of PUR composites was determined. The morphological analysis confirmed that the addition of WS fillers promoted a reduction in cell size, compared to pure PUR foams. Among all the modified PUR foams, the greatest improvement of mechanical characteristics was observed for PUR foams with the addition of silanized WS-the compressive, flexural, and impact strength were enhanced by 21, 16, and 13%, respectively. The addition of non-treated and chemically-treated WS improved the thermomechanical stability of PUR foams. The results of the dynamic mechanical analysis confirmed an increase in glass transition temperature and storage modulus of PUR foams after the incorporation of chemically-treated WS. The addition of non-treated and chemically-treated WS did not affect the insulating properties of PUR foams, and the thermal conductivity value did not show any significant improvement and deterioration due to the addition of WS fillers.
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