Sinteza fenolne smole ojačane nanočesticama TiO2 i njezin utjecaj na gorivost lamelirane drvne građe (LVL)

IF 0.7 4区农林科学 Q4 MATERIALS SCIENCE, PAPER & WOOD

Drvna Industrija Pub Date : 2023-03-25 DOI:10.5552/drvind.2023.0006

Günay Özbay, Musa Atar, Ayhan Ozcifci

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Abstract

In this study, phenol-formaldehyde (PF) resin has been modified with titanium dioxide nanoparticles (nano-TiO2) at a varying ratio from 0.05 wt.% to 1.5 wt.% to enhance the thermal properties and combustion performance of the resins. The effect of the nano-TiO2 modification on the properties (chemical or thermal) of the resins was determined by Fourier to transform infrared (FT-IR) and thermal analysis (TGA) techniques. In addition, the combustion performance of laminated veneer lumber (LVL) samples bonded with the PF resin modified with nano-TiO2 was tested. The result of the FT-IR analysis indicated that the modified PF resins had match peaks to the reference PF resin. These similarities of the peaks supported that the modified PF resins were successfully synthesise with phenol, formaldehyde, and nano-TiO2. The PF resins modified by nano-TiO2 demonstrated better thermal stability than the reference resin. The nano-TiO2 modified PF resin exhibited a favourable influence on the combustion characteristics of LVL. In consequence, PF resin modified with nano-TiO2 could be used as a combustion retardant adhesive in the wood industry.

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纳米TiO2增强苯酚盐的合成及其对木材燃料的影响

在本研究中，用二氧化钛纳米颗粒（纳米TiO2）以0.05重量%至1.5重量%的不同比例对酚醛树脂进行改性，以提高树脂的热性能和燃烧性能。通过傅立叶变换红外光谱（FT-IR）和热分析（TGA）技术测定了纳米TiO2改性对树脂性能（化学性能或热性能）的影响。此外，还测试了用纳米TiO2改性酚醛树脂粘合的单板层压板（LVL）的燃烧性能。FT-IR分析结果表明，改性的PF树脂具有与参考PF树脂相匹配的峰。这些峰的相似性支持了用苯酚、甲醛和纳米TiO2成功合成改性的PF树脂。纳米TiO2改性的PF树脂表现出比参比树脂更好的热稳定性。纳米TiO2改性的PF树脂对LVL的燃烧特性有良好的影响。因此，用纳米TiO2改性的PF树脂可以用作木材工业中的阻燃粘合剂。

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来源期刊

Drvna Industrija MATERIALS SCIENCE, PAPER & WOOD-

CiteScore

1.80

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： "Drvna industrija" ("Wood Industry") journal publishes original scientific and review papers, short notes, professional papers, conference papers, reports, professional information, bibliographical and survey articles and general notes relating to the forestry exploitation, biology, chemistry, physics and technology of wood, pulp and paper and wood components, including production, management and marketing aspects in the woodworking industry.