Evidence map›Paper›PMID 40430702›Full record

ArticlePolymers2025

Epoxy-Aminated Lignin Impregnation Combined with Densification for Enhanced Mechanical Properties and Deformation Fixation of Wood.

Zhizun Gao, Jiayi Sun, Zhenke Wei, Fanjun Yu, Zhe Qiu, Zefang Xiao, Yonggui Wang

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Polymers, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Zhizun GaoKey Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Materials Science and Engineering, Northeast Forestry University, Hexing Road 26, Harbin 150040, China.
Jiayi SunKey Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Materials Science and Engineering, Northeast Forestry University, Hexing Road 26, Harbin 150040, China.
Zhenke WeiKey Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Materials Science and Engineering, Northeast Forestry University, Hexing Road 26, Harbin 150040, China.
Fanjun YuKey Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Materials Science and Engineering, Northeast Forestry University, Hexing Road 26, Harbin 150040, China.
Zhe QiuKey Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Materials Science and Engineering, Northeast Forestry University, Hexing Road 26, Harbin 150040, China.
Zefang XiaoKey Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Materials Science and Engineering, Northeast Forestry University, Hexing Road 26, Harbin 150040, China.
Yonggui WangKey Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Materials Science and Engineering, Northeast Forestry University, Hexing Road 26, Harbin 150040, China.ORCID 0000-0002-5135-1367

Funding

National Natural Science Foundation of China 32171694the project for cultivating excellent doctoral dissertation of forestry engineering LYGCYB202006
6 · The paper itself

Abstract

Hot-pressing densification is an effective method to enhance the mechanical properties of wood; however, excessively high pressing temperatures can cause thermal degradation of wood components, compromising these improvements. In this study, aminated lignin (AL), with improved water solubility and reactive amino groups facilitating crosslinking, was utilized as a bio-based amine curing agent for the water-soluble, low-molecular-weight epoxy compound polyethylene glycol diglycidyl ether (PEGDGE). The PEGDGE-AL modifier was applied for wood impregnation, followed by hot-pressing densification at a relatively low temperature of 120 °C, to enhance the mechanical properties of wood. The chemical composition of AL was analyzed using Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy (NMR), and X-ray photoelectron spectroscopy (XPS). The gelation and curing behavior of the PEGDGE-AL modifier demonstrated its ability to readily form a network structure at both room temperature and elevated temperatures. The impact strength of densified wood (DW) modified with 12 wt% PEGDGE and 8 wt% AL, denoted as 12PEGDGE+8AL-DW, exhibited an impact strength of 15.2 kJ/m

Indexed as

aminated ligninepoxy–amine networkmechanical propertieswood densification

Identifiers

PMID40430702
PMCPMC12114867

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.