Kuraray Kyowa Glass

SKU: KYOWAGLAS-XA

KYOWAGLAS-XA is a transparent lead-containing plastic sheet manufactured by chemically introducing lead into the resin by copolymerization. This is a radiation shielding material developed by Kuraray Co., Ltd., by its own technology, for the first time in the world. KOYWAGLAS-XA has been used in such wide fields as medical, dental, atomic power, etc. by its “easy handling” characteristic and excellent radiation shielding ability.

Features:

  • Variety of lead-equivalency (selectable for different uses)
  • Durability (shatter-resistance is excellent)
  • Fabrication (maching, bending, and gluing are feasible)
  • Transparency (light transmission is excellent with low reflection)
  • Radiation-resitance (original physical property is almost thoroughly maintained after 1,000Gy exposure.
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SKU: KYOWAGLAS-XA Category:

Description

Specifications

Grade Lead-equivalency (mmPb*) Light transmission (%) Thickness (mm) Maximum sizes (mm)
H-8 0.3 or over 80 or over 8.5 + 0.7 1830 x 2440
H-12 0.5 or over 75 or over 12.0 + 1.0 1830 x 2440
H-18 0.8 or over 70 or over 18.5 + 1.2 1830 x 2440
H-22 1.0 or over 65 or over 23.5 + 1.5 1830 x 2440
H-35 1.5 or over 75 or over 35.0 + 2.0 1830 x 2440
H-46 2.0 or over 70 or over 46.5 + 2.5 1830 x 2440
H-70 3.0 or over 65 or over 70.0 + 3.0 1220 x 2440

Applications

  • Viewing window for x-ray room, CT room, and cardiac catheterization room
  • Mobile barrier for radiation shielding
  • Fixed barrier for radiation shielding
  • Parts (shielding panel) for mammography and mobile x-ray equipment
  • Radiation shielding booth and door for dental x-ray equipment
  • X-ray compensation filter, etc.

Physical Properties

Unit H-12 H-35
Tensile strength
JIS K7162		 [MPa] 53 40
Tensile modulus
JIS K7162		 [MPA] 2000 1600
Elongation – JIS K7162
(Yield point – Tensile strain at tensile strength)		 [%] 6 37
Flexural strength
JIS K7171		 [MPa] 66 64
Flexural modulus
JIS K7171		 [MPa] 2100 1800
Rockwell hardness
JIS K7202-2		 [M-scale] 88 63
Izod impact strength (Notched)
JIS K7110		 [KJ/m2] 2.6 3.7
Heat deflection temperature
JIS K7191-2		 [oC] 71 65
Coefficient of linear thermal expansion
JIS K7197		 [cm/(cm-oC)] 1×10-4 10×10-4

All data presented herein is based on measurements performed by Kuraray Co., Ltd., and other reliable information. However, the measurements are not guaranteed as they vary depending upon actual usage and conditions.

Optical Properties

Unit H-12 H-35
Refractive index
JIS K7142		 [ – ] 1.55 1.55
Surface reflectivity
JIS K7375		 [%] 11.2 6.7

Retention of physical properties and discoloration after exposure

 

Unit Absorbed Dose H-12 H-35
Flexural strength
JIS K7171		 [MPa] 0 Gy
100 Gy
500 Gy
1000 Gy		 66
77
75
78		 64
73
82
83
Flexural modulus
JIS K717		 [MPa] 0 Gy
100 Gy
500 Gy
1000 Gy		 2100
2100
2100
2200		 1800
2000
2300
2300
Izod impact strength
JIS K7110		 [KJ/m2] 0 Gy
100 Gy
500 Gy
1000 Gy		 2.6
2.8
2.5
2.5		 3.7
3.6
3.8
3.5
Discolouration
(Hunter’s colour difference)		 100 Gy
1000 Gy		 0.6
2.2		 2.5
7.6

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