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    揭示温度对于环氧地坪施工进度的影响

    2019-09-09 14:00:35 无锡盛发地坪科技有限公司 阅读

    环氧地坪漆涂装质量三分取决于涂料七分取决于施工,优质涂料若不采用严格的施工工艺不会得到优良的效果,因此施工对于环氧地坪漆来说是非常重要的。环氧地坪施工温度应控制需在10-35℃范围内,超出此范围需采用特殊环氧地坪涂料品种;环氧地坪涂料(特别是面漆)涂装与固化过程中(表干前),底材表面温度应高于露点3℃以上,以防底材及湿膜表面水汽凝结影响涂层附着力和表面效果。

    The coating quality of epoxy floor paint depends on three parts of the coating and seven points of the coating depend on the construction. If the strict construction technology is not used, the excellent effect will not be obtained. Therefore, the construction of epoxy floor paint is very important. The construction temperature of epoxy flooring should be controlled in the range of 10-35 C, and special kinds of epoxy flooring coatings should be used beyond this range. In the process of coating and curing (before surface drying), the surface temperature of the base material should be higher than 3 C of dew point, so as to prevent the water vapor condensation on the base material and wet film surface from affecting the adhesion of the coating. And surface effects. 

    ①夏季环氧地坪施工要求

    Summer construction requirements

    夏季在清晨或傍晚施工较为适宜。施工时需测量温度,当气温超过35℃时,为了施工人员的健康和优质的涂膜质量,应避免施工。在湿度大和雨天施工,需测量相对湿度和露点温度,随时检查已干燥涂膜的质量,当出现裂纹、橘皮、脱落等现象时,及时补涂维修。对于双组分涂料,在配制稀释剂和固化剂时应尽量采用慢挥发溶剂,混合甲乙组分时,采用少量、多次勤配的原则,防止出现涂料固化中放热过快的现象而引起涂料报废。温度过高,双组分涂料特别是无溶双组分涂料易出现爆聚现象,即涂料反应过快,大量放热而使涂料使用期缩短。高温下施工时,虽然涂料干燥速率会较快,但即使测定已实干,也要按照一定的涂装间隔进行下一道涂装。

    It is suitable to construct in the morning or evening in summer. Temperature should be measured during construction. When the temperature exceeds 35 C, construction should be avoided in order to improve the health of construction personnel and the quality of coating film. In wet and rainy days, it is necessary to measure relative humidity and dew point temperature, inspect the quality of the dried film at any time, and repair it in time when cracks, orange peel and peeling occur. For two-component coatings, slow volatile solvents should be used as far as possible in the preparation of diluents and curing agents. When mixing A and B components, the principle of a small amount and many times of diligent mixing should be adopted to prevent the phenomenon of excessive heat release in the curing of coatings from causing paint scrap. When the temperature is too high, two-component coatings, especially insoluble two-component coatings, are prone to explosion. That is to say, the reaction of coatings is too fast and a large amount of heat release shortens the service life of coatings. In high temperature construction, although the drying rate of the coating will be faster, the next coating should be carried out according to a certain painting interval even if the measurement is dry.


    ②冬季环氧地坪施工要求

    (2) winter construction requirements

    在有雾或被涂物表面蒙有水汽及霜雪时,不宜进行户外施工。施工时被涂物表面温度应高于露点3℃以上,气温不应低于涂料干燥规定的最低温度。在10℃以下施工时,一般应在上午10点至下午3点作业,充分利用气温较高的时间,组织施工力量,尽快完工。尽量选择专用型冬用固化涂料。涂料若过于粘稠不易涂装时,可加入小于5%的挥发速率较快的溶剂,如丙酮、乙酸乙酯、乙酸丁酯等。可将涂料贮存在温暖的环境中或用热水、蒸汽加热涂料(可能造成涂料质量的下降)。当温热涂料时,除非采用特别的涂料加热设备,其温度不要超过38℃。涂料闪点低于38℃时,加热温度不得超过其闪点。注意打开包装桶盖时,避免水汽的进入,严禁用明火或电火直接加热,加热时必须注意安全。与常规涂装要求相比,在保证漆膜厚度的前提下,可适当增加涂装道数,延长涂装间隔。在测定涂膜实干后,再涂装下一道涂料。

    When there is fog or the surface of the coating is covered with water vapor and frost and snow, it is not suitable for outdoor construction. During construction, the surface temperature of the coating should be higher than dew point 3 C, and the temperature should not be lower than the minimum temperature prescribed by the drying of the coating. When construction is under 10 (?) C, it is generally necessary to work from 10 a.m. to 3 p.m. to make full use of the time when the temperature is high, organize the construction force and complete the work as soon as possible. As far as possible, select special winter curing coatings. If the paint is too thick and difficult to be coated, solvents with a faster volatilization rate of less than 5% can be added, such as acetone, ethyl acetate, butyl acetate, etc. Coatings can be stored in a warm environment or heated by hot water or steam (which may result in a decline in the quality of the paint). When a thermothermal coating is applied, the temperature shall not exceed 38 C unless a special coating heating device is used. When the flash point of the coating is below 38 C, the heating temperature shall not exceed its flash point. Pay attention to opening the lid of the packaging barrel, avoid water vapor entering, prohibit direct heating with open fire or electric fire, and pay attention to safety when heating. Compared with the conventional coating requirements, the number of coating paths can be increased and the coating interval can be prolonged on the premise of guaranteeing the film thickness. After testing the film dry, the next coat is applied.



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