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Development of Biochar-Based Functional Materials: Advancing a Sustainable Platform for Carbon Applications [dataset] Open Access

Biochar-filled polypropylene (PP) and high-density polyethylene (HDPE) composites were developed using chars derived from mustard straw, corn straw, wheat straw, and sewage sludge at loadings of 5–15 wt%. Char addition generally reduced tensile strength and ductility, although sewage sludge biochar showed the best tensile strength retention in both matrices. Impact performance depended on biochar source and loading, while density and hardness varied with filler type. Overall, the results demonstrate that waste-derived biochar can serve as a low-cost, sustainable filler for polyolefin composites, with performance strongly influenced by biochar characteristics and processing. Life Cycle Assessment (LCA) indicated a cradle-to-grave climate change impact of approximately 2.41 kg CO₂-eq per kg of biocomposite (15 wt% biochar, 85 wt% PP), highlighting the potential to reduce fossil resource use, valorise agricultural and sewage sludge wastes, and support a circular economy.

Descriptions

Resource type

Dataset

Contributors

Creator: Vijayalakshmi, Shivaprasad ¹
Contact person: Vijayalakshmi, Shivaprasad ¹
Data collector: Vijayalakshmi, Shivaprasad ¹
Data curator: Vijayalakshmi, Shivaprasad ¹
Editor: Vijayalakshmi, Shivaprasad ¹
Data curator: Roy, Dibyendu ¹
Contact person: Wang, Yaodong ¹
Editor: Wang, Yaodong ¹
Contact person: Roskilly, Anthony ¹
Editor: Roskilly, Anthony ¹
Contact person: Abdulah, Malik ¹
Data collector: Abdulah, Malik ¹
Data curator: Abdulah, Malik ¹

¹ Durham University, UK

Funder

Engineering and Physical Sciences Research Council
Supergen

Research methods

Other description

Keyword

polypropylene
high-density polyethylene
agricultural waste
sludge waste
biochar
life cycle assessment

Subject

Polypropylene
Agricultural wastes
Biochar

Location

Language

Cited in

Identifier

ark:/32150/r2vq27zn53r
doi:10.15128/r2vq27zn53r

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

22/7/26

File Details

Depositor

S.K. Vijayalakshmi

Date Uploaded

21 July 2026, 16:07:10

Date Modified

22 July 2026, 10:07:58

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Characterization

File format: vnd.ms-excel (XLS, Microsoft Excel Format)

Mime type: application/vnd.ms-excel

File size: 7614976

Last modified: 2026:07:21 17:27:21+01:00

Filename: Biochar composite material_Properties and Performance Results.xls

Original checksum: 1bd42b120bfa64cbffa3fda8da606306

File author: VIJAYALAKSHMI, SHIVAPRASAD K.