道路标线反光玻璃微珠
Reflectivity glass beads for road marking
反光型玻璃珠是道路标线涂料必备材料，主要用于道路标线，标志牌，护栏轮廓标识等。主要分为热熔涂料预混合型和施工面撒型两种。
Reflectivity glass beads as the necessary material for the road marked line, mainly used for road marked line, denoter, and identification for the guardrail out line. It pide into intermix glass beads, and drop on glass beads.
我公司产品除达到中国JT/T446-2001外，还可以生产符合英国BS6088-A标准，美国AASHO NO.Ⅰ标准和美国AASHO NO.Ⅱ标准，欧洲Drop ON Type EN 1423标准和Pre-MIX Type EN 1424标准，澳洲AS2009 B3.2标准，和韩国的ＫＳ标准。还可以根据用户需求提供850um(20目)-43um(325目)标准范围之间的不同粒径、不同配比的不同产品。
Our company products was achieved the standard JT/T446-2001 of chine, we also can produce the products in according to the standard BS6088-A of England, AASHO NO.Ⅰand AASHO NO.Ⅱof American, Drop ON Type EN 1423 and Pre-MIX Type EN 1424 of Europe, AS2009 B3.2 of Australia and KS of Korea etc. At the same time, we also can supply from 850um(20mesh) to 43um(325mesh) different size, different proportion products according to the customer required
l 预混型（Intermix glass beads）
在道路涂料生产过程中，将玻璃珠按照18-25%的重量比例（参照中国交通行业标准JT/T280-2004，不同国家和地区标准有所不同）混入涂料中，在涂料交付施工使用后，能够经历多次与车轮摩擦磨损也有反光性。按照中国国家标准GB/T24722-2009,此种玻璃珠的技术参数如下：
During the production of marking paint, mix glass bead into paint based on the ratio of 18-25 %( weight percentage). After application of such kind of paint on road work, the paint still can keep reflectivity after wear and friction of car wheels. The ratio is referring to the standard of Communication Industry Standard of People’s Republic of China No.JT/T280-2004. Standards will be different in countries and areas.
According to the specification of Communication Industry Standard of People’s Republic of China No.JT/T446-2001, the granulometry is shown as table below.
Gravity: 2.4-2.6g/cm3
Size scope (μm) | Alternative NO.（mesh） | content（%） |
>600 | >30 | 0 |
600-300 | 30-50 | 50-90 |
300-150 | 50-100 | 5-50 |
<150 | <100 | 0-5 |
Reflective index:≥1.50
Roundness:≥80
Content of magnetic particles:≤0.1%
Glass bead should be colorless, loosen
and spherical particle, and should be free
of cluster which can’t be loosen by slight impact.
l 面撒型（Drop On Glass Bead）
在涂料的施工的过程中，降热烙型涂料加热到一定温度铺在路面上来干时，随即撒入玻璃珠，增强标线的反光性能。
按照中国交通行业标注JT/T280-2004的规定，面撒玻璃珠的粒度分布如下，其他参数与内混型玻璃珠保持一致。
During the application of paint on road work, thermoplastic paint should be to a certain level and used on the road surface as marking line, drop on glass bead should be dropped on the surface of line white it is still wet to increase the reflectivity of road marking line.
According to the specification of Standard of Ministry of Transport of the People’s Republic of China No.GB/T24772-2009,the granulometry of drop on glass bead is shown as table below, other parameters are the same with intermix glass bead.
Size scope (μm) | Alternative NO.（mesh） | Content （%） |
>850 | >20 | 0 |
850-600 | 20-30 | 5-30 |
600-300 | 30-50 | 30-80 |
300-106 | 50-140 | 10-40 |
<106 | <140 | 0-5 |
