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HIGH REFLECTIVE INDEX GLASS BEADS |
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High reflective index glass beads are perfect retro-reflective materials.
They are widely used for manufacturing reflective sheet materials for
Road sign, and they are also used for reflecting cloth, billboard, screen,
airport Runways, shining painting materials etc.
May be considered as spherical lens and it can returns incoming light to
the original light source when reflecting layer is set in its focus point.
The position of focus point of the glass beads is relied on its reflective
Index.
Shaped like perfect spheres with a smooth and shinning surface.
Remarkable strength, hardness and chemical stability.
Reflective index to control it¡¯s focus point.
Uniform particle distribution.
Made of Tio2, BaO glass, and their refractive index is approximately1.93
No lead, No harmful to human. |
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TYPE
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SIZE
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JHI-1
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32§~45§
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JHI-2
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45§~56§
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JHI-3
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56§~63§
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JHI-4
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63§~71§
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JHI-5
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71§~90§
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HI INDEX GLASS BEADS |
Hardness(Mohs) |
> 5 |
Abrasion(%) |
4.2 |
Refraction Index |
1.93 |
Specific Gravity(20/20 ¡É) |
2.6 |
Softing Point(¡É) |
900 |
Resistance to Weather |
No change |
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SiO2 |
5 - 10% |
Na2O+K2O |
0 - 0.5% |
CaO |
0.5 - 3% |
TiO2 |
0 - 0.5% |
BaO |
0 - 1% |
Fe2O3 |
0 - 1% |
TiO2 |
30 - 40% |
BaO |
40 - 48% |
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| MILLING / DISPERSION
/ FILTRATION / LARGEBEADS ETC |
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Milling / Dispersion / Filtration
Glass Beads is a spherical glass
which is manufactured through
a kiln process with low alkaline
glass.
Usually its diameter is 1.0-5.0
mm which is larger than the reflective
beads used for road marking.
Because it is resistant to abrasion
and chemical degradation and also
non-polluting to the environment,
this glass bead is used to filter
or disperse paper stock, dyes,
paints, foodstuffs, chemicals
and medicines, and
also to pulverize lumps of pigment
through mills.
Nowadays these so called(when
it is used for street improvement)
LARGE-BEADS are used for increasing
the night-time visibility of traffic
line.
The quality of glass beads can
be classified into two categories
:ordinary beads (soda lime) and
highly intensified ones (E-glass).
The highly intensified beads are
non-alkaline, and because of its
hardness, it can last up to 3
times longer than ordinary glass
beads.
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PHYSICAL PROPERTIES |
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A(Soda lime)Glass
Beads
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E-Glass Beads
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Hardness(knoop)(kgf/§±)
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425
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540
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Abrasion(%)
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3.14
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1.96
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Specific Gravity(20/20¡É)
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2.52
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2.62
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Compressive Strength(N/§±)
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16.64
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21.51
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Refraction Index
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1.5-1.64
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-
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Specfic Heat(Cal/g¡É)
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0.81
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1.92
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Softening Point(¡É)
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720
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830-850
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Thermal Counductivity(Kcal
/ m. hr.¡É)
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0.65
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-
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Thermal ExpansionCoefficient
(¡É)
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85x10 -6
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4x10 -6
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Resistance to
Weather
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No Change
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No Change
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CHEMICAL ANALYSIS(%) |
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Chemical
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Sio2
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Ai2O3
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CaO
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MgO
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TiO2
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Na2O3,K2O
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B2O3
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Sodalime Glass
Bead
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70-73
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0.8-1.0
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7-12
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1.0-4.5
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-
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13-15
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-
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E-Glass Beads
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52-56
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12-16
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16-25
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0-6
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0-0.5
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0-0.8
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5-13
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PRODUCTS TYPE |
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MILLING/
HI MILLING
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TYPE
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GLASSBEADS
UNIT= 
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MESH
SIZE
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JM/JHM-20
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840-1,190
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20 - 14
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JM/JHM-30
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1,000 - 1,400
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16 - 12
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JM/JHM-40
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1,410- 2,000
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12 - 9
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JM/JHM-50
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1,680 - 2,380
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10 - 8
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JM/JHM-60
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2,000 - 2,830
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9 - 7
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JM/JHM-70
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2,380 - 3,360
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8 - 6
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JM/JHM-80
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3,360 - 4,760
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6 - 4
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TYPE
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SIZE(MESH)
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JB-100
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40§~90§
(170-325)
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JB-200
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75§~150§
(100-200)
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JB-300
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106§~212§
(70-140)
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JB-400
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150§~250§
(60-100)
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JB-500
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180§~300§
(50-80)
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JB-600
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250§~425§
(40-60)
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JB-700
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400§~600§
(20-40)
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JM-10
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600§~800§
(20-30)
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JM-SODALIME GLASS, JHM-E
GLASS |
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