富酚松针热解油改性酚醛树脂的制备及粘结强度评价

IF 1.3 Q2 MATERIALS SCIENCE, PAPER & WOOD

International Wood Products Journal Pub Date : 2022-04-07 DOI:10.1080/20426445.2022.2061254

Tarannum Jahan, Brijesh Lekhak, A. K. Verma, A. Dubey, T. Bhattacharya

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引用次数: 1

摘要

松针生物油部分被酚醛树脂(PF)取代，比例高达40%。新生产的生物油酚醛树脂(BOPF)在加入10%生物油的情况下，其木材粘接性能与纯PF树脂相当，且具有相似的剪切强度。DSC显示，20 wt-% BOPF树脂的固化温度从95℃降至60℃。根据TGA和DTG数据，BOPF树脂的热降解程度略低于纯PF树脂，并且在10%和20% BOPF树脂中相似。红外光谱分析表明，酚醛之间存在亚甲基桥，表明木材胶粘剂质量较好。通过扫描电镜观察，10%和20% BOPF树脂的微观结构与纯PF树脂相当。

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Preparation of phenol-formaldehyde resin modified with phenol-rich pine needle pyrolysis oil and assessment of bonding strength

ABSTRACT The pine needles bio-oil was partially replaced with phenol-formaldehyde (PF) resin at a rate of up to 40% by weight. The wood adhesive characteristics of a newly produced bio-oil phenol-formaldehyde (BOPF) resin with 10% bio-oil replacements was found to be comparable to those of pure PF resin with similar shear strength. DSC revealed that the curing temperature of 20 wt-% BOPF resin decreased from 95 to 60°C. Thermal degradation of BOPF resins was somewhat lower than that of pure PF resin, according to TGA and DTG data, and was similar in 10 and 20 wt-% BOPF resins. The presence of methylene bridges between phenols shown by FTIR analysis indicated that the wood adhesive had a good quality. According to SEM examination, the 10 and 20% BOPF resins showed a flat microstructure comparable to the pure PF resin.

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来源期刊

International Wood Products Journal MATERIALS SCIENCE, PAPER & WOOD-

CiteScore

2.40

自引率

0.00%

发文量