苯酚—尿素—甲醛共缩聚树脂研制Ⅰ.合成与分析

doi:10.11707/j.1001-7488.20000521

Abstract

Abstract: A new synthetic method to obtain resol-type phenol-urea-formaldehyde resins was developed by reacting phenol, urea and formaldehyde. The properties and structure of products were analyzed. The result showed that stability of the cocondensed resin was improved, and solidification rate of the phenolic resin was accelerated. The cocondensed resin appeared similar thermal properties with normal PF resins, different greatly with UF resin. The cocondensates were analyzed with carbon 13 nuclear magnetic resonance (¹³CNMR) spectroscopy, o-Ph-CH₂-NHCO-(δ=41.5) and p-Ph-CH₂-NHCO-(δ=44.8) were observed. Properties of MDF (medium density fibreboard) and waferboard bonded with PUF were similar with boards bonded with normal PF resins, superior to boards bonded with UF resins.

Key words: Phenol-urea-formaldehyde cocondensed resins, Structure, Property

Du Guanben;Li Jun;Yang Zhong. DEVELOPING PHENOL-UREA-FORMALDEHYDE COCONDENSED RESINS Ⅰ. SYNTHESIS AND ANALYSIS[J]. Scientia Silvae Sinicae, 2000, 36(5): 73-77.

[1]	Yang Zhao,Xiuwen Cao,Bo Li,Rui Qi,Jiahao Cao,Xuelong Chen,Mengmeng Yang,Linsheng Chen. Structural Characteristics of 4 Natural Populations in the Southern Forest Region of Gansu Province [J]. Scientia Silvae Sinicae, 2020, 56(9): 21-29.
[2]	Xian Xie, Jun Liang, Yanpeng Zhu, Ruirui Hu, Yuan Cheng, Xingyao Zhang. Diversity and Community Structure of Endophytic Fungi in the Pure Forest of Pinus densiflora Infected by Different Incidences of Sphaeropsis sapinea [J]. Scientia Silvae Sinicae, 2020, 56(9): 51-57.
[3]	Cun Chen,Changjun Ding,Jing Zhang,Bo Li,Yanguang Chu,Xiaohua Su,Qinjun Huang. Population Structure Analysis and Core Collection Construction of Populus deltoides [J]. Scientia Silvae Sinicae, 2020, 56(9): 67-76.
[4]	Chen Chen,Fangyuan Yu. Research Progress on Flower Bud Differentiation of Trees [J]. Scientia Silvae Sinicae, 2020, 56(9): 119-129.
[5]	Zhonghua Zhao,Gangying Hui. Advances in Structural Diversity of Stand Structure [J]. Scientia Silvae Sinicae, 2020, 56(9): 143-152.
[6]	Yanyan Ju,Yuanjun Ding,Qianqian Shao,Xiaochun Zhang,Hongyan Gao,Mengying Lian,Rongjun Bian,Xiaoming Wang,Genxing Pan. Properties and Application Potential of Biochar from Urban Green Wastes [J]. Scientia Silvae Sinicae, 2020, 56(8): 107-120.
[7]	Dong Wang,Lanying Lin,Feng Fu. The Effects of Multiscale Structure Differences on Wood Fracture—A Review [J]. Scientia Silvae Sinicae, 2020, 56(8): 141-147.
[8]	Huanhuan Chen,Gexi Xu,Fanqiang Ma,Shun Liu,Miaomiao Zhang,Xiangwen Cao,Jian Chen,Guangdong Zhao,Hongguo Yang,Zuomin Shi. Phylogenetic Structure of Undergrowth Layers across Subalpine Dark Coniferous Forests and Their Post-Harvesting Secondary Forests in Western Sichuan [J]. Scientia Silvae Sinicae, 2020, 56(7): 1-11.
[9]	Yihong Meng,Gangbiao Xu,Mengzhu Lu,Xiaolong Jiang,Feilong Guo. Population Genetic Structure and Demographic History of Disanthus cercidifolius var. longipes [J]. Scientia Silvae Sinicae, 2020, 56(7): 55-62.
[10]	Bing Liao,Zhiguang Zhang. Forestry's Contribution to Ecological Civilization and Its "Structure Smiling Curve" [J]. Scientia Silvae Sinicae, 2020, 56(7): 163-174.
[11]	Hongkai Liu,Xu Chen,Mingzhong Zhang,Qiang Wang,Yanping Wang. Anatomical Characteristics of Fine Roots of 11 Tree Species in the Hilly Mountainous Areas in Central Shandong Province and Their Drought Resistance Strategies [J]. Scientia Silvae Sinicae, 2020, 56(7): 185-193.
[12]	Jialu Su,Wushuang Shi,Yayun Yang,Xing Wang,Yulong Ding,Shuyan Lin. Comparison of Leaf Color and Pigment Content and Observation of Leaf Structure at Different Growth Stages from Six Bamboo Species [J]. Scientia Silvae Sinicae, 2020, 56(7): 194-203.
[13]	Yanhui Liu,Yiju Hou,Deyuan Shu,Bing Yang,Yingchun Cui,Fangjun Ding. Properties and Spatio-Temporal Variation of Leaf Retained Particulate Matters of the Main Tree Species Planted in Guiyang City [J]. Scientia Silvae Sinicae, 2020, 56(6): 12-25.
[14]	Bin Zhang,Jiehua Lü. Spatial Effects Analysis for Factor Inputs Driving, Industrial Structure Upgrading and Forestry Economic Growth: A Case Study of Heilongjiang Key State-Owned Forest Region [J]. Scientia Silvae Sinicae, 2020, 56(6): 142-151.
[15]	Wankuan Zhu,Yuxing Xu,Zhichao Wang,Apeng Du. Biomass Estimation Coefficient and Its Impacting Factors for Eucalyptus Plantation in China [J]. Scientia Silvae Sinicae, 2020, 56(5): 1-11.

DEVELOPING PHENOL-UREA-FORMALDEHYDE COCONDENSED RESINS Ⅰ. SYNTHESIS AND ANALYSIS

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments