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橡塑技术与装备（塑料） CHINA RUBBER/PLASTICS TECHNOLOGY AND EQUIPMENT (PLASTICS)

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Study on synthesis of water-soluble phenolic resin and
preparation of its laminates

Du Yuquan, Wu Hao, Feng Qiheng
(Shaanxi Yellow River Group Co. LTD., Xi’an, Shaanxi 718100, China)

Abstract: In the preparation of water-soluble phenolic resin, many factors affect the quality of
the product. These factors include the control of reaction time, the ratio of material dosage between
formaldehyde and phenol and catalyst, the control of reaction temperature, the selection of reaction
process and the specific operation process. Through the analogy of various factors and multiple experiments,
this paper explores the influence degree and trend of various factors on the quality of final products. At the
same time, the reference of the final formulation is adjusted by measuring the detection standard of phenolic
resin and the corresponding molding products, and the new formulation and process related to water-soluble
phenolic resin are systematically studied and discussed. The experimental results show that when the molar ratio
of formaldehyde to phenol is 1.37~1.40, the segmented heating is (40~60~80)℃ , and the gel time of 160℃ is
controlled at 85 s. At the same time, using the catalyst strong base A and weak base B to conduct phenolic resin
synthesis experiments, and water soluble phenolic resin with good performance can be obtained.
Key words: segmented heating; gel time; reaction temperature; catalyst dosage; water soluble phenolic
resin
(R-03)

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