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Zhejiang Tongdun New Materials Co., Ltd. is located in Tiantai County, Taizhou, Zhejiang Province. It is a technology-based company that produces ionomer membranes. The company has established long-term cooperative relationships with Zhejiang University of Technology, Wenzhou Institute of the University of Chinese Academy of Sciences, etc., and conducts long-term in-depth research on the development, testing, and application of ionomer membranes. The company covers an area of 5,000 square meters. The existing ionomer membrane production line is designed with an annual production capacity of 1,000 tons. It has a good product quality monitoring and testing system, a high-quality R & D and testing team, and strictly controls the quality stability from raw materials to finished products. The company is customer-oriented and quality-based. Through continuous in-depth research, it provides more efficient products and services to society.
Product Introduction PRODUCT INTRODUCTION
Edge stability refers to the durability of the exposed edges of laminated glass under atmospheric conditions. PVB laminated glass is not resistant to moisture. It is prone to delamination and separation under the action of water vapor, so the exposed edges need to be sealed. However, Tongdun SGP laminated glass has good edge stability, is not sensitive to moisture, and will not delaminate or separate when used under exposed conditions. It can be used with open edges without sealing.
Product Actual Photos PRODUCT PICTURE
Ordinary PVB laminated glass, especially tempered laminated glass, will produce large bending deformation once the glass is broken, and there is a risk of the whole piece falling off. The risk is even greater when the glass is horizontally installed on the skylight. There have been cases of accidental incidents where the whole piece of glass fell. SGP interlayer film laminated glass has good integrity. Its tear strength is 5 times that of ordinary PVB interlayer film. Even if the glass is broken by chance, the SGP interlayer film can still bond the broken glass to form a temporary structure after damage. Its bending deformation is small, and it can bear a certain amount of load without the whole piece falling. This greatly improves the safety of the glass.
The SGP laminated film itself is colorless and transparent, and has good weather resistance and is not easy to turn yellow. The yellowing coefficient of the SGP film is less than 1.5, while that of the PVB film is 6 - 12. Therefore, SGP laminated glass can better meet the architectural art requirements of architects. If ultra - white glass (low - iron glass) and SGP interlayer film are used to make ultra - white laminated glass, it will have a crystal - clear optical effect.
The working performance of several pieces of glass stacked together depends on the mechanical properties of the interlayer (laminated film). If the shear modulus of the laminated film
Comparison of physical parameters of interlayer films
Items | Tongdun Ionomer Film | PVB Film | Testing Standards |
Tensile Strength | 34Mpa | 25Mpa | ASTM D-638 |
Elongation at Break | 350% | 250% | ASTM D-638 |
Density | 0.96g/cm 3 | 1.067/cm 3 | ASTM D-792 |
Light Transmittance | 89% | 89% | JC/T2166-2013 |
Haze | ＜ 1% | ＜ 1% | JC/T2166-2013 |
Yellowness Index | ＜ 2 | 6 - 12 | JC/T2166-2013 |
Moisture Content | ＜ 0.1% | 0.35% - 0.55% | JC/T2166-2013 |
Coefficient of Thermal Expansion | 100x10 -6 mm/mm/℃ | 155x10 -6 mm/mm/℃ | ASTM D-696 |
Heat Distortion Temperature | 37℃ | --- | ASTM D-648 |
Shear modulus 30℃, 3s | 140Mpa | 1.3Mpa | ISO-6721 |
Product specification sheet
Thickness | Width | Length |
0.76mm | Width 2440mm, customizable according to customer requirements | 200 meters |
0.89mm | Width 2440mm, customizable according to customer requirements | 200 meters |
1.14mm | Width 2440mm, customizable according to customer requirements | 150 meters |
1.52mm | Width 2440mm, customizable according to customer requirements | 100 meters |
Note: Other thicknesses and sizes can be customized according to actual needs.
Packaging and storage of Tongdun ionic interlayer film
Packaging : The inner packaging uses aluminum-plated film vacuum packaging, and the outer packaging uses wooden box packaging. Both the inner and outer packages are attached with product information certificates.
Storage: It should be stored in a cool and dry place at a temperature below 30℃, avoiding direct sunlight. If the package is opened or damaged, it should be placed in a constant temperature dehumidification room at a temperature of 18~25℃ and a relative humidity of less than 25% and used as soon as possible.
Transportation: Avoid sunlight, rain, heavy pressure, and severe vibration during transportation.
Shelf life: The normal storage shelf life is two years. After unpacking, it can be stored for 3 months in a constant temperature dehumidification room at a temperature of 18~25℃ and a relative humidity of less than 25%.
China is a professional exporter of PVB and SGP film intermediate films, providing transparency, automobile, architecture, color, milky white, porcelain white, Tan, ocean blue, French green, etc.
China is a specialized exporter of semiconductor films such as PVB and SGP, supplying transparent, automotive, architectural, colored, milky white, porcelain white, tan, ocean blue, French green, etc.
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