复合型酚醛树脂固化剂的研究

doi:10.3969/j.issn.1000-2006.2015.01.020

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南京林业大学学报（自然科学版） ›› 2015, Vol. 58 ›› Issue (01): 109-113.doi: 10.3969/j.issn.1000-2006.2015.01.020

复合型酚醛树脂固化剂的研究

陈玉竹,储富祥^*,范东斌,秦特夫

中国林业科学研究院木材工业研究所,国家林业局木材科学与技术重点实验室,北京 100091

出版日期:2015-01-31 发布日期:2015-01-31
基金资助:
收稿日期:2014-02-18 修回日期:2014-05-20
基金项目:国家自然科学基金项目(31200441); 中央级公益性科研院所基本科研业务专项基金项目(CAFINT2013K03); “十二五”国家科技支撑计划(2012BAD24B04)
第一作者:陈玉竹,博士生。*通信作者:储富祥,研究员。E-mail:chufuxiang@caf.ac.cn。
引文格式:陈玉竹,储富祥,范东斌,等. 复合型酚醛树脂固化剂的研究[J]. 南京林业大学学报:自然科学版,2015

Study on fast curing PF resin added by compound curing agent

CHEN Yuzhu, CHU Fuxiang^*, FAN Dongbin, QIN Tefu

Key Laboratory of Wood Science and Technology of State Forestry Administration, Research Institute of Wood Industry,Chinese Academy of Forestry, Beijing 100091, China

Online:2015-01-31 Published:2015-01-31

摘要/Abstract

摘要： 为了研究复合型固化剂对酚醛树脂(PF)适用期、胶接性能的影响,同时实现酚醛树脂的快速固化,在分析添加了单组分固化剂羟甲基脲(MMU)、碳酸丙烯酯(PC)、碳酸钠(Na₂CO₃)和氢氧化镁(Mg(OH)₂)的酚醛树脂相关性能指标的基础上,对单组分固化剂进行复配得到了复合型固化剂,并对复配前后的相关性能指标进行了分析。结果表明:单组分固化剂可以提高PF树脂的胶合强度,但不能满足胶合板生产至少4 h适用期的要求; MMU+Na₂CO₃复合固化剂不仅在7 h内黏度变化较小,而且可以显著提高PF树脂的固化速度,使胶合板的热压时间由330 s缩短至270 s,且产品质量达到国家标准中Ⅰ类胶合板胶合强度(≥0.7 MPa)的要求。试验表明,MMU+Na₂CO₃是一种可用于胶合板生产的PF树脂快速固化剂。

Abstract: In order to meet fast curing requirements of PF resin without pot life and wet shear strength,compound curing agents were obtained by combination of single curing agent, including methylolureas(MMU), propylene carbonate(PC), sodium carbonate(Na₂CO₃), magnesium hydrate(Mg(OH)₂).By comparing the properties of PF resins added with single with the compound curing agents, it indicated that: Although single curing agent improved the on wet shear strength of plywood, but pot lifes was too short to meet the production requirement of at least 4 hours. The compound curing agent of MMU+Na₂CO₃ showed obvious effect on fast curing PF resin by shortening the hot pressing time from 330 s to 270 s, and the plywood wet shear strength reached the class Ⅰ of Chinese industry standard(≥0.7 MPa). The compound curing agent of MMU+Na₂CO₃ was a suitable fast curing agent which could be used in plywood production.

中图分类号:

TQ314

陈玉竹,储富祥,范东斌,等. 复合型酚醛树脂固化剂的研究[J]. 南京林业大学学报（自然科学版）, 2015, 58(01): 109-113.

CHEN Yuzhu, CHU Fuxiang, FAN Dongbin, QIN Tefu. Study on fast curing PF resin added by compound curing agent[J].Journal of Nanjing Forestry University (Natural Science Edition), 2015, 58(01): 109-113.DOI: 10.3969/j.issn.1000-2006.2015.01.020.

参考文献

[1] Tomita B, Hse C. Syntheses and structural analyses of cocondensed resins from urea and methylolphenols[J]. Mokuzai Gakkaishi, 1993, 39(11): 1276-1284.
[2] Zhao C, Pizzi A, Garnier S. Fast advancement and hardening acceleration of low-condensation alkaline PF resins by esters and copolymerized urea[J]. Journal of Applied Polymer Science, 1999, 74(2): 359-378.
[3] Tomita B, Hse C Y. Condensation of urea with methylolphenols in acidic conditions[J]. Polymer Chemistry, 1992, 30(8):1615-1624.
[4] Fan D, Chang J, Li J, et al. ¹³C-NMR study on the structure of phenol-urea-formaldehyde resins prepared by methylolureas and phenol[J]. Journal of Applied Polymer Science, 2009, 112(4): 2195-2202.
[5] Pizzi A, Stephanou A. Completion of akjakube cure acceleration of phenol-formaldehyde resins-acceleration by organic anhydrides[J]. Journal of Applied Polymer Science, 1994, 51(7): 1351-1352.
[6] Du Z Y, Sun X B. Fast curing phenol-formaldehyde resin catalyzed by a complex catalyse[J].Advanced Materials Research, 2010(113-116): 2124-2128.
[7] Fan D B, Chang J M, Gou J S, et al. On the cure acceleration of oil-phenol-formaldehyde resins with different catalysts[J]. Journal of Adhesion, 2010, 86(8): 834-843.
[8] Fan D B, Li J Z, Chang J M. On the structure and cure acceleration of phenol-urea-formaldehyde resins with different catalysts[J]. European Polymer Journal, 2009, 45(10): 2849-2857.
[9] Park B D, Riedl B. C-13-NMR study on cure-accelerated phenol-formaldehyde resins with carbonates[J]. Journal of Applied Polymer Science, 2000, 77(6): 1284-1293.
[10] Lorenz L F, Conner A C. Accelerated cure of phenol-formaldehyde by the addition of cure accelerators: Studies with model compounds[J]. Wood Adhesives, 2000, 86(13):391-395.
[11] Tohmura S, Higuchi M. Acceleration of the cure of phenolic resin adhesives. 6: Cure-accelerating action of propylene carbonate[J]. Mokuzai Gakkaishi, 1995, 41(12): 1109-1114.
[12] Park B D, Riedl B, Hsu E W, et al. Application of cure-accelerated phenol-formaldehyde(PF)adhesives for three-layer medium density fiberboard(MDF)manufacture[J]. Wood Science And Technology, 2001, 35(4): 311-323.
[13] Pizzi A, Garcia R, Wang S. On the networking mechanisms of additives-accelerated phenol-formaldehyde polycondensates[J]. Journal of Applied Polymer Science, 1997, 66(2): 255-266.
[14] Fan D B, Chang J M, Gou J S, et al. On the cure acceleration of oil-phenol-formaldehyde resins with different catalysts[J]. Journal of Adhesion, 2010, 86(8): 834-843.
[15] Grenierloustalot M F, Larroque S, Grande D, et al. Phenolic resins 2: Influence of catalyst type on reaction mechanisms and kinetics[J]. Polymer, 1996, 37(8): 1363-1369.
[16] Zhao C H, Pizzi A, Garnier S. Fast advancement and hardening acceleration of low-condensation alkaline PF resins by esters and copolymerized urea[J]. Journal of Applied Polymer Science, 1999, 74(2): 359-378.
[17] Pizzi A, Stephanou A, Antunes I, et al. Alkaline PF resins linear extension by urea condensation with hydroxybenzylalcohol groups[J]. Journal of Applied Polymer Science, 1993, 50(12):2201-2207.
[18] 范东斌. 尿素、生物油-苯酚-甲醛共缩聚树脂的合成、结构与性能研究[D].北京:北京林业大学, 2009.Fan D B. Synthesis, structure and properties of urea-or biomass oil-phenol-formaldehyde cocondensed resins[D]. Beijing:Beijing Forestry University, 2009.

复合型酚醛树脂固化剂的研究

Study on fast curing PF resin added by compound curing agent

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