CNCGLASS EVA film & SGP interlayer – Page 217

CnC PVB EVA Laminated Glass
CnC PVB EVA Laminated Glass

CnC Laminated glass is a combination of two or more glass sheets with one or more plastic inter layers (EVA /PVB)sandwiched by the glass sheets. In case of breakage the interlayer will hold the glass fragments together. It is manufactured through a process of heat and vacuuming.

CnC Laminated glass is used when there is a possibility of human impact or where the glass could fall if shattered. It can be found in windshields, skylights, balconies, bank teller windows, and jewelry counters to name a few applications.

Application: Building, window and door, high grade curtain wall, lighting, skylight, elevated floor, furniture, showcase, counter, automotive glass and aquarium etc.

Max Size: 2000*6000mm
Single glass thick: 3-20mm
PVB: 0.38mm and multiple of 0.38 mm (EVA /PVB)

Float glass is made with a mixture of silica sand, soda ash, dolomite and various other carefully mixed and weighed ingredients. The mixed batch is sent to a furnace for melting into a glass liquid at high (over 1500 ℃) temperature. After leaving the furnace in a continuous process the glass liquid is floated on top of molten tin in a tin bath from where it passes into the annealing lehr for cooling and solidifying into a continuous glass ribbon.

Applications
Float glass can be processed by various means into coated, tempered, insulating, and bent glass.
1-Commercial and civil buildings
2-Furniture.
3-Automobiles.
4-Indoor and outdoor decoration.
5-Substrates for various compound glass.

Specifications
1-Standard dimensions 3660/3300/3210/3050*2550/2440/2250/2134mm etc… 2-Thickness Available 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 15mm, 19mm,25mm

CNC-INTERLAYER TECH:
[Product 1]CNC-Force EVA INERLAYER FOR ARCHITECTURAL LAMINATED GLASS [email protected]
[Product 2]CNC-SmartSMART FILM FOR PRIVACY SWITCHABLE GLASS
[email protected]
[Product 3]CNC-Shield PVB INTERLAYER FOR AUTOMOTIVE WINDSHIELD GLASS [email protected]
Web: www.CNCglass.com www.CNCnext.com www.HelloGlass.com
Mail: [email protected]
[email protected]/
[email protected]
CnC PVB EVA Laminated Glass.pdf

Delamination Analysis of Laminated Glass with Polyvinyl Butyral PVB Interlayer Film
By www.helloglass.com

ARCHITECTURAL LAMINATED GLASS [email protected]
【Product 2】CNC-SmartSMART FILM FOR PRIVACY

SWITCHABLE GLASS [email protected]
【Product 3】CNC-Shield PVB INTERLAYER FOR

AUTOMOTIVE WINDSHIELD GLASS [email protected]
Web: www.CNCglass.com www.CNCnext.com

www.HelloGlass.com
Mail: [email protected]
[email protected]/
[email protected]

Condition One: Delamination Appears in Lines.
Reason:
When combining the glass with the Polyvinyl Butyral PVB interlayer film, some folds occur , or some place of Polyvinyl Butyral PVB interlayer film is too thin due to the hard pulling of the Polyvinyl Butyral PVB interlayer film. Especially the place near the hole or edges, some Polyvinyl Butyral PVB interlayer film have been shrink, so the Polyvinyl Butyral PVB interlayer film is too thin or even gone between the too glasses.

Solution:
When combining the glass with Polyvinyl Butyral PVB interlayer film, pull the Polyvinyl Butyral PVB interlayer film gently, make sure no fold of Polyvinyl Butyral PVB interlayer film, and the Polyvinyl Butyral PVB interlayer film is 2mm wider than the glass. And also cut the Polyvinyl Butyral PVB interlayer film gently.

Condition Two: Delamination in Edges and Holes of Laminated Glass with Polyvinyl Butyral PVB Interlayer Film
Reason:
The plainness of the edges and holes of the tempered glass is not good.

Solution:
Adjust the plainness of the tempered glass, clip the edges of the pre-laminated glass before putted into the autoclave. But don’t use too big clips, in case the PVB Film’s shape changes.

Condition Three: Delamination on Edges and Holes After the Laminated Glass is Installed in the Building

Solution: Install the laminated glass gently. it’s better if use the wrench with scale to hole the laminated glass. Make sure the glass glue is suitable for the laminated glass, and it should be neutral glue.

Condition Four: Irregular Delamination of Laminated Glass with Polyvinyl Butyral PVB Interlayer Film
Reason1:
The Adhesion of Polyvinyl Butyral PVB interlayer film and glass is not strong. Solution1:
The washing glass water is not good quality, it’s better use the water whose electric conductivity is lower than 20us.

Solution2:
The Polyvinyl Butyral PVB interlayer film absorbed too much moisture, maybe more than 6%. If moisture of Polyvinyl Butyral PVB interlayer film is higher than 1%, the laminated glass may appear white haze.

Solution3:
The combination of pre-laminated glass and roller exhausting air stage maybe not operate correctly, which lead to Polyvinyl Butyral PVB interlayer film not reacted perfectly. The main parameters are temperature, pressure and time.

Solution4：
The glass surface is not clean and dry enough.

Reason2:
The Polyvinyl Butyral PVB interlayer film is too thin.
Solution:
Use thicker or more layer of Polyvinyl Butyral PVB interlayer film.

Reason3:
The plainness of the tempered glass is not good.
Solution: Choose better quality tempered glass.

Condition Five: Delamination of Laminated Glass with Polyvinyl Butyral PVB Interlayer Film When in Boling Water Test

Reason1:
Two much air contained inside the laminated glass with Polyvinyl Butyral PVB interlayer film.
Solution1:
Sealing the edges too early in the pre-pressure exhausting air stage, which lead to the air stocked inside the laminated glass. Although, it seams successful when the laminated glass come out from the autoclave, but when in the boiling test, the bubbles will appears.
Reason2:
The Polyvinyl Butyral PVB interlayer film has absorbed too much moisture before laminating.
Solution2:
Adjust the storage conditions, make sure the moisture of Polyvinyl Butyral PVB interlayer film is less than 0.55%.

All rights reserved by CNC-INTERLAYER TECH:
【1】CNC-Force® EVA INERLAYER FOR ARCHITECTURAL LAMINATED GLASS 【2】CNC-Smart® SMART FILM FOR PRIVACY SWITCHABLE GLASS
【3】CNC-Shield® PVB INTERLAYER FOR AUTOMOTIVE WINDSHIELD GLASS Mail: [email protected]
Web: www.CNCnext.com
[email protected]/
[email protected]

Delamination Analysis of laminated glass with Polyvinyl Butyral PVB Interlayer Film.pdf