韩国标准(KSL 2521)玻璃珠

质量要求标准

外观

比重

成圆率

折射率

玻璃成分 

玻璃珠应为无色透明的球体,光洁圆整,无明显气泡或杂质。在容器中的状态应为松散的球状颗粒,清洁无杂质,并不含有结块物。

23+/-2摄氏度
的二甲苯中

2.4~2.6/立方厘米

有缺陷的玻璃珠质量小于玻璃珠质量的30%,即玻璃珠成圆率不小于80%
粒径在850~600um的玻璃珠成圆率不应小于70%

折射率>=1.5

钠钙玻璃,Sio2>68%

 

粒径分布

[型号]

[执行标准]

[粒径范围](um)

[质量百分比](%)

应用

1

KSL 2521 

>850

0

1号镀膜玻璃珠作为路面标线面撒反光之用

850~600

5~30

600~300

30~80

300~106

10~40

<106

0~5

2

>600

0

2号预混珠作为路面标线热熔涂料内混反光之用

600~300

40~90

300~150

5~60

<150

0~5

3

>212

0

3号作为路面标线常温漆反光之用

<90

0~4

 

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