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    塑胶跑道面层褪色的原因都有哪些
    来源:http://www.jndmzp.com   时间:2015-2-22 16:40:13
    1)所选颜料耐光性、耐候性和耐酸碱性差。在紫外线、化学品、大气污染、酸雨侵蚀等作用下,颜料分子结构发生变化出现褪色。所以要选择耐光性、耐候性好的颜料,或在原材料中加入紫外线吸收剂等光稳定剂来提高颜料和原材料耐光性能。
    1) the selected pigments light fastness, weather resistance and acid-proof alkaline poor. In the ultraviolet, chemicals, such as air pollution, acid rain erosion, the molecular structure of pigment changes appear fade. So choose light fastness, weather good pigment, or add uv absorber in raw materials such as light stabilizer to improve the light resistance paint and raw materials.
    2)基料粉化使颜料脱落。跑道表面橡胶因光、氧或臭氧等因素作用而发生老化降解,使橡胶与填充剂之间的结合力丧失,以致表面颜填料等以粉末状析出表面而褪色。表面橡胶材料中添加防老剂可缓解橡胶的粉化。
    2) basic material pulverization paint falls off. Rubber runway surface due to factors such as light, oxygen or ozone degradation and aging, make the loss of adhesion between rubber and filler, so that the surface of the fillers to powder surface precipitation and fade. On the surface of the rubber material adding stabilizer can alleviate the pulverization of rubber.
    3)跑道透气透水性差,地基水分向表面迁移,或受污染的雨水在跑道表面滞留,使跑到表面有可溶性碱盐,水分蒸发后,盐碱风化堆积造成变色,同时碱性对漆膜中的颜料树脂的侵蚀造成变色。
    3) the runway, poor permeability breathable moisture migration to the surface of foundation, or polluted rainwater stranded in the surface of the runway, soluble alkali salt ran to the surface, make after evaporation, the salt weathering accumulation cause discoloration, and alkaline erosion cause discoloration of the pigment resin paint film.
    4)所选颜料耐热性差。有些有机颜料在高温下发生分解而使颜色褪去。
    4) the selected paint heat resistance is poor. Some organic pigments decompose at high temperature and make the color faded.
    5)所选颜料抗氧化性差。某些有机颜料在氧化后发生大分子的降解或发生其他变化而逐渐褪色。
    5) the selected paint oxidation resistance is poor. Some organic pigments in the degradation of macromolecules in the aftermath of the oxidation or other changes, and gradually fade.
    6)跑道在使用过程中长期受到摩擦作用也会导致表面颜料脱落而褪色。
    6) the runway friction effect and influenced for a long time in use process can also lead to the surface paint falls off and fade.

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