Evidence map›Paper›PMID 41597989›Full record

ArticleMaterials (Basel, Switzerland)2026

Evaluation of Polybutylene Succinate Composites Reinforced with Lignin and Milled Hemp Stalks.

Nnaemeka Ewurum, Courage Alorbu, Lili Cai, Armando G McDonald

Abstract read
In one paragraph

Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Nnaemeka EwurumDepartment of Forest, Rangeland and Fire Sciences, University of Idaho, Moscow, ID 83844, USA.ORCID 0009-0000-7027-0960
Courage AlorbuDepartment of Forest, Rangeland and Fire Sciences, University of Idaho, Moscow, ID 83844, USA.ORCID 0000-0001-5193-4290
Lili CaiWarnell School of Forestry and Natural Resources, University of Georgia, 180 E Green Street, Athens, GA 30602, USA.ORCID 0000-0002-2099-4837
Armando G McDonaldDepartment of Forest, Rangeland and Fire Sciences, University of Idaho, Moscow, ID 83844, USA.ORCID 0000-0001-5877-4082

Funding

USDA / Western Region SunGrant Initiative 3TB372 subaward U1522C-G
6 · The paper itself

Abstract

This study examines the effects of kraft lignin, milled hemp stalks, and dicumyl peroxide (DCP) crosslinking on polybutylene succinate (PBS) composites, focusing on rheological, mechanical, and thermal properties as well as accelerated weathering and fungal performance. Two composite series were produced via twin-screw extrusion, (a) simple blends (B-series) and (b) DCP-crosslinked formulations (R-series), with emphasis on hybrid lignin-hemp composites (B-PLH and R-PLH). Rheological analysis showed that hemp fiber increased viscosity, while lignin reduced it, and DCP further enhanced shear-thinning behavior. Mechanical testing confirmed that R-PLH exhibited a 16% increase in flexural strength (42.6 MPa) and a 2.4-fold increase in flexural modulus (1785 MPa) over neat PBS, but tensile strength declined by 19%. Thermal analysis revealed a 14-26% reduction in mass loss rate and increased char formation (up to 16.3% in R-PLH), indicating improved thermal stability. Water absorption showed that hemp fibers increased hydrophilicity, further increased by DCP. Accelerated weathering led to significant color change and surface degradation, particularly in R-PLH. Despite lignocellulosic content, all composites exhibited ≤2% fungal degradation, indicating limited mass loss due to fungal exposure under conditions used in this study. Overall, B-PLH and R-PLH offer a balance of stiffness and thermal stability, though trade-offs in tensile strength and weathering resistance should be considered for sustainable applications.

Indexed as

biocompositesbiodegradabilitycrosslinkinghemp-fiberligninpolybutylene-succinateweathering

Identifiers

PMID41597989
PMCPMC12843226

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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 Socratic graph.