Curing of phenol-formaldehyde resin mixed with wood preservatives

被引:4
|
作者
Miyazaki, Junko [1 ]
Furuta, Naoyuki [2 ]
Miyauchi, Teruhisa [1 ]
机构
[1] Hokkaido Res Org, Forest Res Dept, Forest Prod Res Inst, Dept Timber Engn, Asahikawa, Hokkaido 0710198, Japan
[2] Hokkaido Res Org, Forest Res Dept, Forest Prod Res Inst, Dept Wood Utilizat, Asahikawa, Hokkaido 0710198, Japan
关键词
adhesives; thermosets; resins; viscosity and viscoelasticity; differential scanning calorimetry (DSC); DIFFERENTIAL SCANNING CALORIMETRY; DYNAMIC-MECHANICAL ANALYSIS; RESOL RESINS; BEHAVIOR; KINETICS;
D O I
10.1002/app.38447
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The effects of preservatives used for glue-line treatment on the curing of phenol-formaldehyde resin (PF) were studied by dynamic mechanical analysis and differential scanning calorimetry. Storage modulus, G, loss modulus, G, and loss tangent, tan , of PF with and without preservatives were recorded as a function of time under isothermal heating. The time required for G, G, and tan to reach steady values increased with addition of preservative. The G, G, and tan curves of PF containing benzyl alcohol (used in the preservative as a diluent) were almost identical to those of PF containing preservative. However, the addition of antitermite and anti-fungal compounds alone had no effect on the curing process. There were no differences in total reaction enthalpy or dependence of activation energy on degree of conversion between pure PF and mixtures. Our results indicate that benzyl alcohol in preservatives plasticizes the curing system for PF. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
引用
收藏
页码:2896 / 2901
页数:6
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