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Preparation of a starch-based adhesive cross-linked with furfural, furfuryl alcohol and epoxy resin
International Journal of Adhesion and Adhesives ( IF 3.2 ) Pub Date : 2021-07-13 , DOI: 10.1016/j.ijadhadh.2021.102958
Jun Zhang 1 , Bowen Liu 1 , Yunxia Zhou 1 , Hisham Essawy 2 , Qian Chen 3 , Xiaojian Zhou 1 , Guanben Du 1
Affiliation  

Furfural and furfuryl alcohol originating from agriculture were used as crosslinkers to develop a renewable starch-furanic adhesive with good water resistance. Electrospray ionization mass spectroscopy and 13C nuclear magnetic resonance measurements indicated that furfural and furfuryl alcohol reacted with starch under acidic conditions and that the –CH2–O– groups were involved in the cross-linking of the starch-furfural-furfuryl alcohol adhesive (SFF). The gel time of SFF was longer than that of the starch-furfural adhesive (SF), while the dry shear strength of the SFF-bonded plywood suggested that the cured SFF adhesive acquired a performance better than that of starch (S) and SF adhesives. Moreover, the water resistance of the SFF adhesive cross-linked with 9% epoxy resin was further enhanced with respect to that of the S, SF, and commercial phenol formaldehyde adhesives.



中文翻译:

糠醛、糠醇和环氧树脂交联淀粉基胶粘剂的制备

来自农业的糠醛和糠醇被用作交联剂,以开发具有良好耐水性的可再生淀粉-呋喃胶粘剂。电喷雾电离质谱和13 C 核磁共振测量表明,糠醛和糠醇在酸性条件下与淀粉反应,-CH 2-O- 基团参与了淀粉-糠醛-糠醇粘合剂 (SFF) 的交联。SFF的胶凝时间比淀粉-糠醛胶粘剂(SF)长,而SFF粘合胶合板的干剪切强度表明固化后的SFF胶粘剂获得的性能优于淀粉(S)和SF胶粘剂. 此外,与 S、SF 和商业酚醛胶粘剂相比,与 9% 环氧树脂交联的 SFF 胶粘剂的耐水性进一步提高。

更新日期:2021-07-15
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