دورية أكاديمية
أعرض في EDS

Influence of Pressing Temperatures on Physical-Mechanical Properties of Wood Particleboards Made with Urea-Formaldehyde Adhesive Containing Al 2 O 3 and CuO Nanoparticles.

التفاصيل البيبلوغرافية
العنوان: Influence of Pressing Temperatures on Physical-Mechanical Properties of Wood Particleboards Made with Urea-Formaldehyde Adhesive Containing Al 2 O 3 and CuO Nanoparticles.
المؤلفون: Silva LCL; Science and Engineering Faculty, São Paulo State University, Guaratinguetá 12516-410, Brazil., Lima FO; Science and Engineering Institute, São Paulo State University, Itapeva 18409-010, Brazil., De Araujo VA; Science and Engineering Institute, São Paulo State University, Itapeva 18409-010, Brazil.; Exact Sciences & Technology Center, Federal University of São Carlos, São Carlos 13565-905, Brazil., Dos Santos HF; Campus of Ariquemes, Federal Institute of Education, Science and Technology of Rondônia, Ariquemes 76870-000, Brazil., Lahr FAR; São Carlos School of Engineering, University of São Paulo, São Carlos 13566-590, Brazil., Christoforo AL; Exact Sciences & Technology Center, Federal University of São Carlos, São Carlos 13565-905, Brazil., Favarim HR; Science and Engineering Institute, São Paulo State University, Itapeva 18409-010, Brazil., de Campos CI; Science and Engineering Faculty, São Paulo State University, Guaratinguetá 12516-410, Brazil.; Science and Engineering Institute, São Paulo State University, Itapeva 18409-010, Brazil.
المصدر: Polymers [Polymers (Basel)] 2024 Jun 11; Vol. 16 (12). Date of Electronic Publication: 2024 Jun 11.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: MDPI Country of Publication: Switzerland NLM ID: 101545357 Publication Model: Electronic Cited Medium: Internet ISSN: 2073-4360 (Electronic) Linking ISSN: 20734360 NLM ISO Abbreviation: Polymers (Basel) Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Basel : MDPI
مستخلص: Particleboards have gained attention in the global market. Understanding their physical-mechanical behavior in the current technological context is essential due to adhesive polymerization, which depends on variables such as pressing time and temperature. Today, the use of nanoparticles has become a plausible option for improving the properties of polymers used in wood-based composites. This study evaluates the influences of the addition of non-commercial 0.5% aluminum oxide (Al 2 O 3 ) and aluminum oxide copper (CuO) nanoparticles using a greener route with a lower environmental impact obtaining a urea-formaldehyde (UF)-based polymeric adhesive to manufacture particle composites of Eucalyptus urophylla var. grandis wood. Regarding characterizations, the resin properties analyzed were viscosity, gel time, and pH, as well as panel properties, including density, moisture content, thickness swelling, modulus of elasticity, modulus of rupture, and thermal conductivity. The results were compared with scientific publications and standards. The addition of nanoparticles interfered with viscosity, and all treatments indicated a basic pH. It was not possible to determine the gel time after 10 min. Nanoparticles added to the polymers in the internal layer did not cause an improvement in the swelling properties in terms of thickness, with no significant statistical difference for density and moisture content. The increase from 150 °C to 180 °C may have caused an improvement in all physical-mechanical properties, indicating that the higher temperature positively influenced the polymerization of the formaldehyde-based adhesive. Therefore, the additions of both nanoparticles (0.5% in each condition) led to a limitation in the material influence with respect to physical-mechanical performance.
References: Polymers (Basel). 2023 Jan 10;15(2):. (PMID: 36679237)
Polymers (Basel). 2023 Feb 10;15(4):. (PMID: 36850174)
Polymers (Basel). 2023 Nov 30;15(23):. (PMID: 38231995)
معلومات مُعتمدة: 2019/02926-4 and 2015/04660-0 Fundação de Amparo à Pesquisa do Estado de São Paulo; 001 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Coordination of Superior Level Staff Improvement; APC funding Instituto Federal de Educação, Ciência e Tecnologia de Rondônia
فهرسة مساهمة: Keywords: density; mechanical property; nanomaterials; physical property; polymeric adhesive; pressing temperature; thermal property; wood-based panel
تواريخ الأحداث: Date Created: 20240627 Latest Revision: 20240629
رمز التحديث: 20240629
مُعرف محوري في PubMed: PMC11207620
DOI: 10.3390/polym16121652
PMID: 38932002
قاعدة البيانات: MEDLINE
الوصف
تدمد:2073-4360
DOI:10.3390/polym16121652