Preparation and Modification of Sucrose-Based Non-Isocyanate Polyurethane Adhesives for Plywood Bonding DOI Creative Commons

Huarui Zhong,

Qianyu Zhang, Hong Lei

и другие.

Molecules, Год журнала: 2025, Номер 30(7), С. 1541 - 1541

Опубликована: Март 30, 2025

The production of non-isocyanate polyurethane (NIPU) resins using recyclable biomass materials and no isocyanates as a substitute for traditional (PU) has become research focus in the industry. development such NIPU application wood adhesives also emerged an interesting new topic. In this study, sucrose was used to react with dimethyl carbonate, then polymerized amine prepare sucrose-based (SNIPU) evaluate their suitability use plywood. Four amines, namely polyethylene (PEI) molecular weight (MW) 10,000, PEI MW 1800, diethylenetriamine, hexanediamine were tested preparation SNIPU determine more suitable showing optimal adhesion performance. effect amount added on adhesive properties further investigated. results showed that prepared PEI-10000 presents good bonding content 45% (w/w sucrose) presented highest strength. dry strength, 24 h cold water (23 °C) wet 3 hot (63 °C 93 strengths its bonded plywood 1.26 MPa, 0.90 0.84 0.80 respectively. Furthermore, addition 13% adhesive) ethylene glycol diglycidyl ether (EGDE) modifier significant decrease 20 curing temperature adhesive.

Язык: Английский

Architectural potential of wheat straw processed by thermo-compression: From the perspective of hygrothermal behavior DOI
Juanli Guo,

Chuning Tan,

Yujie Jin

и другие.

Construction and Building Materials, Год журнала: 2025, Номер 474, С. 141130 - 141130

Опубликована: Апрель 9, 2025

Язык: Английский

Процитировано

1
Preparation and Modification of Sucrose-Based Non-Isocyanate Polyurethane Adhesives for Plywood Bonding DOI Creative Commons

Huarui Zhong,

Qianyu Zhang, Hong Lei

и другие.

Molecules, Год журнала: 2025, Номер 30(7), С. 1541 - 1541

Опубликована: Март 30, 2025

The production of non-isocyanate polyurethane (NIPU) resins using recyclable biomass materials and no isocyanates as a substitute for traditional (PU) has become research focus in the industry. development such NIPU application wood adhesives also emerged an interesting new topic. In this study, sucrose was used to react with dimethyl carbonate, then polymerized amine prepare sucrose-based (SNIPU) evaluate their suitability use plywood. Four amines, namely polyethylene (PEI) molecular weight (MW) 10,000, PEI MW 1800, diethylenetriamine, hexanediamine were tested preparation SNIPU determine more suitable showing optimal adhesion performance. effect amount added on adhesive properties further investigated. results showed that prepared PEI-10000 presents good bonding content 45% (w/w sucrose) presented highest strength. dry strength, 24 h cold water (23 °C) wet 3 hot (63 °C 93 strengths its bonded plywood 1.26 MPa, 0.90 0.84 0.80 respectively. Furthermore, addition 13% adhesive) ethylene glycol diglycidyl ether (EGDE) modifier significant decrease 20 curing temperature adhesive.

Язык: Английский

Процитировано

0