Concepedia

Calcium carbonate modified urea–formaldehyde resin adhesive for strength enhanced medium density fiberboard production

Lu Li, Yan Wang, Tianhua Li, Supeng Wang, Shoulu Yang, Yan Qing, Xingong Li, Yiqiang Wu, Ming Liu

RSC Advances · 2021 · 23 citations · 25 references

DOIFull text

Open access

Concepts

Abstract

Reactions between CaCO<sub>3</sub> and CH<sub>2</sub>O<sub>2</sub> during polycondensation of UF resin produce Ca<sup>2+</sup>. Ionic bond complexation binds Ca<sup>2+</sup> with UF resin. The UF resin crystalline percentage decreases from 26.86% to 22.71%. IB strength of resin bonded fiberboard increases from 0.75 to 0.94 MPa.

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