Polyvinyl butyral Film

Polyinylbutyral film is made from PVB resin with plasticizer and prepared by the technology of extrusion and calendaring. I t can be used as the inner layer of sandwich safety glass of cars, locomotive, airplane, tanker, naval vessel etc. It can also be used as solid adhesive for safety glass, safety mask, building glazing, composite steel plate, etc. It conforms to the enterprise standard of Q/GHAD 18-2008.

pecification

Unit:mm
thickness

0.2

0.38

0.50

0.76

1.00

1.35

2.00

Width

900-1200

900-1200

900-1200

900-1200

900-1200

500-950

500-950

Width Tolerance

±25

±25

±25

±25

±25

±25

±25

Thickness Tolerance

±0.05

±0.08

±0.08

±0.08

±0.10

±0.10

±0.10

Minimal Length

2000

2000

2000

2000

2000

2000

2000

Note:J— Military grade; A— Auto, locomotive grade; B— Safety glass, bonding metal             plate, mask, steel, laminate grade; glazing, C—Glazing inner Layer grade.
Appearance

Code

Defect Type & Impurity

Foreign Particle Dia.

Air Bubble
Ф≤2.0mm

Impurity Total Area

0.5mm-1.0mm (incl.)

1.0mm-2.0mm
(incl.)

2.0mm-3.0mm
(incl.)

E-413J(A)

≤15个/m2

≤5个/m2

nil

≤5个/m2

≤6.0mm2/m2

E-413B

≤15个/m2

≤10个/m2

≤1个/m2

≤10个/m2

≤7.0 mm2/m2

E-413C

/

≤15个/m2

≤15个/m2

≤15个/m2

≤10.0 mm2/m2

Main Properties

Item

Value

E-413J

E-413A

E-413B

E-413C

Volatile content % ≤

2.0

2.0

2.0

2.0

Tensile Strength MPa ≥

20.0

20.0

15.0

15.0

Elongation @ Break % ≥

160

150

150

120

Adhesive Strength MPa ≥

8.0

7.0

5.0

4.0

Light Transmission Rate % ≥

81.0

80.0

80.0

-

Fog % ≤

0.60

0.80

-

-

Colourith% ≥

75

75

70

-

Humid Heat

At 70℃±2℃,
hum.91%-99%.After 48 hrs, sample no change.

At 60℃±2℃,hum.
91%-99%.After 8 hrs,
sample no change.

 

-

Heat-Resistance

At 70℃±2℃,After 48 hrs, sample no change.

At 60℃±2℃,After 8 hrs, sample no change.

 

-

Cold-Resistance

At -55℃±2℃,After 48 hrs, sample no change.

At -55℃±2℃,After 8 hrs, sample no change.

 

-

Light-proof

Light transmission rate decrease less than 2% under 750W light-source, 100hrs

-

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