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摘要
利用二氨基二环己基甲烷(氢化DDM)、甲醛、苯酚进行曼尼期反应,合成一种低温环氧固化剂。以苯基缩水甘油醚、聚氨酯改性环氧和双酚A环氧为基体树脂,筛选改性抗压耐磨填料,以合成的曼尼期碱固化,研制一种冰区船舶破冰用无溶剂环氧重防腐涂料。结果表明:涂料的综合性能优异,常温(23℃)下耐压强度为173MPa,低温(-65℃)下耐压强度为219MPa,耐磨性在1000g载荷,1000r/min的转速下磨损45mg。因此,该涂料具有优异的抗压强度和耐磨及防腐性能。
Abstract
A low temperature epoxy curing agent was synthesized by Mannich reaction of hydrogenated DDM,formaldehyde and phenol.A solventless epoxy heavy anticorrosive coating for icebreaking ships in ice area was developed using phenyl glycidyl ether,polyurethane modified epoxy and bisphenol A epoxy as matrix resins by screening the modified compression-resistant and wear-resistant fillers and curing with synthesized Mannite alkali.The results showed that the coating exhibited excellent comprehensive performance,with a compressive strength of 173MPa at room temperature (23℃) and 219MPa at low temperature (-65℃).The wear resistance test demonstrated a wear loss of 45mg under a load of 1000g and a rotation speed of 1000r/min.Therefore,the coating has outstanding compressive strength,wear resistance and anticorrosive properties.
关键词
破冰涂料
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耐磨损
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防腐蚀
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无溶剂环氧
Key words
icebreaking paint
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wear resistance
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anti-corrosion
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solvent-free epoxy
冰区船舶破冰用无溶剂环氧重防腐涂料的研制及性能[J].
化工新型材料, 2025, 53(6): 291-296 DOI:10.19817/j.cnki.issn1006-3536.2025.06.044
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