Claim · model-written summary
Direct-contact heating increased rubberwood surface density by 524 kg/m³ relative to untreated material.
Verbatim
e0“with rubberwood emerging as a promising resource”
e1“Compared to untreated materials, the treated specimens exhibited a 524 kg/m³ increase in surface density, a 29–47 % reduction in modulus of rupture, a 2–11 % decrease in modulus of elasticity, a 2–31 % drop in screw holding power, a 33 % reduction in shrinkage, and a 58 % decrease in swelling”
e2“By employing direct-contact heating, a rapid surface modification is achieved between 5 and 15 min at temperatures ranging from 250 to 290 ℃”
Title
Zhipeng Zhu; Jingyao Zhao; Xiaoxue Song; et al. Industrial Crops and Products 2026. doi:10.1016/j.indcrop.2026.122638
Other claims from this paper (12)
- Intervention effect Direct-contact heating reduced modulus of rupture of rubberwood by 29–47 % relative to untreated material.
- Intervention effect Direct-contact heating decreased modulus of elasticity of rubberwood by 2–11 % relative to untreated material.
- Intervention effect Direct-contact heating dropped screw holding power of rubberwood by 2–31 % relative to untreated material.
- Intervention effect Direct-contact heating reduced shrinkage of rubberwood by 33 % relative to untreated material.
- Intervention effect Direct-contact heating decreased swelling of rubberwood by 58 % relative to untreated material.
- Intervention effect Direct-contact heating improved surface decay resistance of rubberwood, reducing mass loss rate by 39–45 %.
- Intervention effect Direct-contact heating raised the degree of crystallinity of rubberwood from 40 % to 64 % relative to untreated material.
- Mechanism Selective hemicellulose degradation and lignin redistribution are proposed to explain the crystallinity increase of rubberwood without compromising crystalline domains.
- Association Color parameters show strong relationships with mechanical properties, chemical composition and dimensional stability of heat-treated rubberwood.
- Method / resource Color parameters (ΔE*/b*) predict rubberwood properties with R² up to 0.902 for non-destructive testing.
- Intervention effect Treatment at 270 ℃ for 10 min reduced fungal mass loss of rubberwood by 39 %.
- Intervention effect A rapid 15-minute platen treatment reduced rubberwood shrinkage by 58 % (the highlights; the abstract gives 33 % for shrinkage).