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    让你知道环氧地坪漆涂膜老化的过程

    2018-11-04 06:38:26 无锡盛发地坪科技有限公司 阅读

    环氧地坪漆漆膜老化过程不是一触而就的,是一个循序渐进的变化过程,现在就由轻到重为您详细介绍下环氧地坪漆涂膜老化的三个特征:一、失光:失光是环氧地坪漆涂膜老化的最初特征,由于环氧地坪漆涂膜受太阳光中紫外线照射的影响, 引起光化学反应,使环氧树脂成分发生降解,逐步丧失原有光泽,直至发展成全部失光。环氧地坪漆涂层光泽是装饰性环氧地坪漆涂膜的重要指标,膜层一旦失去光泽(原始无光泽涂层除外)就无装饰性可言,所以通过环氧地坪漆涂料涂装,能使环氧环氧地坪漆涂膜达到光彩照人,丰满度好,鲜映性极佳,不仅仅关系到环氧环氧地坪漆涂料的正确选择,也是衡量环氧地坪漆涂装工艺水平的重要指标之一。

    The ageing process of epoxy floor paint film is not a touch-by-touch process, but a gradual process of change. Now we will introduce three characteristics of the ageing process of epoxy floor paint film in detail from light to weight. First, loss of light: loss of light is the initial feature of the ageing of epoxy floor paint film, because the epoxy floor paint film is purple in sunlight. The influence of external irradiation causes photochemistry reaction, which degrades the epoxy resin composition and gradually loses its original luster until it develops into total loss of luster. The gloss of epoxy floor paint coating is an important index of decorative epoxy floor paint coating. Once the film loses its gloss (except the original glossy coating), it has no decorative property. Therefore, the epoxy floor paint coating can achieve glossy, full and bright, not only related to the ring, but also through the epoxy floor paint coating. The correct choice of oxygen floor paint is also one of the important indicators to measure the coating technology level of epoxy floor paint. 二、变色

    Two. Discoloration

    这也是环氧地坪漆涂膜开始老化的一种较明显的征兆。环氧地坪漆涂膜从正常的颜色发牛色相 或色泽的改变,有的变深,有的变浅,有的发暗,有的白色变黄,有的红的 变粉色或变浅等,这些都属于变色。其原因是由于光化学反应的结果,对色漆来说,其变色与树脂的性质有一定关系,但主要还是取决于选用的颜料的性质,不同颜料有不同的光敏性,由此显示出不同的保色性。

    This is also a more obvious sign of aging of epoxy floor paint film. Epoxy floor paint film changes from normal color to cattle color or color, some darkens, some lightens, some darkens, some whites turn yellow, some Reds turn pink or light, and so on, which belong to discoloration. The reason is that the photochemical reaction results in the discoloration of the paint, which has a certain relationship with the properties of the resin, but mainly depends on the properties of the selected pigments. Different pigments have different photosensitivity, which shows different color retention.

    三、粉化

    Three. Pulverization

    粉化是环氧地坪漆涂膜老化逐步深化的特征,其原因主要是受太阳光紫外线的辐射和氧的存在下相互作用引起树脂分子链的交联或降解,促使树脂与颜料颗粒之间的分离,出现脱粉现象。其次是与颜料的性质、晶形也有很大关系。

    Powdered epoxy floor coatings are characterized by the gradual deepening of aging. The main reason is that the interaction between ultraviolet radiation and oxygen causes the crosslinking or degradation of resin molecular chains, which leads to the separation of resin and pigment particles and the appearance of dedusting phenomenon. Secondly, it is closely related to the nature and shape of pigment.

    粉化现象是环氧地坪漆涂膜发生严重失光或完全失光之后才会有的。也就是说此时的涂膜,不仅已完全丧失了装饰特性,而且它的防护性能也已开始遭到了破坏,标志着涂膜老化已趋向于严重阶段。

    The phenomenon of pulverization is due to serious loss of light or loss of light after coating on epoxy floor paint. That is to say, not only the decorative properties of the coating have been completely lost, but also its protective properties have begun to be destroyed, which indicates that the aging of the coating has tended to a serious stage.


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