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蓄光颜料是一种长余辉发光材料，简称长余辉材料，又称夜光材料。这类材料在合成过程中所形成晶体的晶格里产生结构缺陷和杂质缺陷才具有发光性能，由材料晶格缺陷所引起的发光叫做自激发光，而由杂质缺陷引起的发光叫做激活发光，实际应用的各类发光材料大多为后者。
夜光材料的发光是依据光致发光原理进行的，其激发光源一般是日光和人工光源，它吸收了激发光能并储存起来，光激发停止后，再把储存的能量以光的形式慢慢释放出来。吸收光→发光→储存→再发光，该过程可无限重复多次，和手机电池的充电→放电→再充电→再放电的反复使用过程是相似的。
这种发光材料在没有外界光源的黑暗环境中会发光，其发光时间被称为余辉时间。性能较好的长余辉材料如发光颜色多样的硅酸盐体系长余辉材料等，稀土激活的碱土铝酸盐的余辉特性*为优越，可实现20小时以上的余辉发光。
1、不含任何放射物质、无毒、无害、不燃烧、不含磷、铅和其它有害元素或化学品，对人体安全，通过国家权威检测部门的检测。
2、具有稳定的物理和化学属性。
3、使用寿命可达20年以上。
4、微小颗粒，易于同各种透明介质原料混合使用。
5、亮处吸光，暗处发光。亮处吸收日光、灯光、环境杂散光等各种可见光、黑暗处即可自动持续发光，给人们黑暗中更多的信息指示。
6、无需电源，经中国计量科学院检测，该产品无毒、无放射性、化学性能稳定。
7、激发条件低，阳光、普通照明、环境杂散光都可作为激发光源。
8、发光亮度高，发光时间长，远远超过消防疏散的要求。
9、安装简单、维护方便。可以根据公共场所的实际需要，灵活进行安装，地面、梯面、棚顶的不同部位均可进行标志安装。
10、可无限次重复使用，安全系数100%。
11、具有良好的抗老化性、耐腐蚀性、耐热性，具有一定的阻燃性及抗划伤性能。
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STORING pigment is a long afterglow luminescent material, referred to as the long afterglow material, also known as the luminous material. Such materials are formed during the synthesis crystal are Gerry produce structural defects and impurities the defect before having the light-emitting properties, light emission caused by the material lattice defect called self-excitation light, and the light emission caused by the impurity defect called activated luminescent, most of the practical application of various types of light-emitting materials for the latter.
The luminous material luminous photoluminescence principle, its general excitation source is sunlight and artificial light, it absorbs the excitation light energy and store optical excitation is stopped, then the energy stored in the form of light slowly release out. Emitting → storage → re-emitting light absorption → This process may be repeated several times, and the cell phone battery charging → discharge unlimited → rechargeable → then discharge the repeated use of the process is similar.
This light-emitting materials that emit light in a dark environment with no external light source, its light-emitting time is called the persistence time. Better performance, long-lasting materials such as a variety of luminous colors Silicate Long Afterglow afterglow characteristics of the rare earth activated alkaline earth aluminate most superior Afterglow more than 20 hours.
1, does not contain any radioactive material, non-toxic, harmless, no burning, no phosphorus, lead and other harmful elements or chemicals on human security through national authoritative departments detection.
2, with the stability of the physical and chemical properties.
3, the service life of up to 20 years.
4, fine particles easily with a variety of raw materials are mixed using a transparent medium.
5, light absorbance at the dark glow. Absorb daylight, lighting, environmental stray light lit at various visible light, dark place automatically continue to light, instructions to people darkness more information.
Without power, detected by the China Institute of Metrology, the product is non-toxic, non-radioactive, chemical stability.
7 low excitation conditions, sunlight, general lighting, environmental stray light can be used as the excitation source.
8, emission luminance is high, the light-emitting time is long, far exceeding fire evacuation requirement.
9, simple to install, easy to maintain. According to the actual needs of the public places, flexible installation, ground, Timian canopy, can be carried out in different parts of the signs installed.
10 unlimited re-use, the safety factor of 100%.
11, has a good aging resistance, corrosion resistance, heat resistance, and having a certain degree of flame resistance and scratch resistance.
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