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第44卷第4期 2014年4月
涂料工业
PAINT&COATINGSINDUSTRY
水性环氧地坪的透气性验证与原理分析
Vol.44No.4 Apr.2014
姚俊海，章荣会，霍利强，朱硕（北京联合荣大建材有限公司，北京101400）
摘要：为验证水性环氧地坪透气性能，建立了简捷的试验方法，通过对比油性、水性环氧涂料的固化过程及力学性能，分析了水性环氧地坪的透气性原理及影响性能的首要原因。同时，考察了施工工艺、分散条件等因素对其透气性的影响。结果表明：水性环氧涂料因其独特的“胶囊”式固化过程，使得涂层具有良好的透气性。其涂层的硬度、抗压强度、粘接强度比油性环氧涂层略低，但满足标准要求，耐冲击破坏性测试仅造成点状破坏。多层复合工艺、分散条件对透气性无影响，但不适当的分散条件会产生有缺陷的涂层，影响涂层表观及性能。
关键词：地坪涂料；水性环氧：透气性
中图分类号：TQ635.53
文献标识码：A
文章编号：0253-4312(2014)040006-06
Verification and Principle Analysis for
Breathabilityof WaterborneEpoxyFloorCoating
YaoJunhai,ZhangRonghui,HuoLiqiang,ZhuShuo
(Beijing Allied Rongda Construction Material Co.,Lid.,Beijing 101400, China)
Abstract A simple method for the breathability verification of waterbormne epoxy floor coating was established. The breathability principle and the key factors influencing the performance of the epoxy floor coating were analyzed by comparing the curing process and mechanical properties of sol-vent-based and waterborne epoxy floor coating. The effect of process and dispersing condition on the breathability was also studied. The results showed that the curing process resulted in good breathability of the coating. The hardness, compressive strength and adhesive strength of the water-borne epoxy coating were slightly lower than that of solventbased epoxy coating, but qualified for the existing standards. And the result of the impact resistance test showed that the coating could on-ly had punctate damage.The multi-layer composite film-forming process and dispersing conditions had no effect on the breathability, but inappropriate dispersing condition could cause a defective coating which affected its appearance and performance.
Key Words:floor materials;waterborne epoxy;breathability
环氧地坪涂层由于具有洁净、美观、亮丽及整体无缝等优势，已在不同行业和领域获得广泛应用。地坪行业近儿年的调查报告显示，在常规的应用领域中，环氧地坪涂料一直占据较高的市场份额，且有逐年递增的趋势，其材料体系多数以油性环氧涂料为主(-2]
油性环氧地坪涂料以环氧树脂、胺类固化剂为主剂，辅以其他不同的功能助剂、颜料和填料，从而获得具有不同功能的双组分地坪涂料。该涂料固化成型后无毒无害，但从生产到施工的过程都具有强烈的刺激性气味，尤其在密闭场所施工，气味完全散去需要
作者简介：姚俊海（1980一），男，工程师，主要从事涂料及建筑材料的研究 6