YuChun
Email : info3@greentpu.com
Add:No. 11, Wentang North Road, Wenzhou Road, Dongcheng Dist., Dongguan, Guangdong, China
(Old address:No. 232, Wentang North Road, Wenzhou Road, Dongcheng Dist., Dongguan, Guangdong, China)
TPU hot melt adhesive film use temperature misunderstanding full analysis is as follows:
A misunderstanding: ignore the classification of TPU hot melt adhesive film and its melting point
Low temperature TPU hot melt adhesive film: its melting point is relatively low, usually between 60 ~ 80 ℃, suitable for heat-sensitive materials or the need to achieve rapid bonding applications at lower temperatures. This type of adhesive film is widely used in areas such as apparel, shoe materials and certain electronic products.
Medium temperature TPU hot melt adhesive film: melting point is usually between 80~120℃, excellent in adhesive strength and heat resistance, suitable for applications with high material requirements, such as automotive interiors, industrial products and certain advanced electronic products.
High-temperature TPU hot melt adhesive film: at present, there are fewer types of these products, and their melting point is higher, generally above 140℃.
Second, misunderstanding two: improperly set the heating time and temperature
Heating time should not be too long, the heating temperature should not be too high. Specific heating time and temperature should be set according to the actual situation to ensure that the film can quickly bond the material after melting and not damage the material itself.
The use of temperature is generally higher than the melting point of the product 20 ℃ or more, but should not exceed the melting point of 50 ℃ or more. For example, low-temperature TPU hot melt adhesive film use temperature is recommended between 70-110 ℃; medium temperature TPU hot melt adhesive film use temperature is recommended between 120-160 ℃.
Third, the third misunderstanding: ignore the operating environment on the impact of the bonded materials
The high temperature of the operating environment will affect the use of TPU hot melt adhesive film. Therefore, when operating should choose a relatively stable environment, avoid direct sunlight, high temperature baking or high temperature environment for operation.
The high temperature of the surface of the bonded material will also lead to the high temperature of the TPU hot melt adhesive film. Therefore, before the operation can be bonded material pretreatment, such as cleaning, grinding, etc., in order to reduce the temperature of the material surface, improve the bonding effect.
Fourth, misunderstanding four: ignore the impact of material processing on the bonding effect
The use of materials have to deal with the role of anti-adhesion, may lead to poor adhesive fastness.
TPU hot melt adhesive film used when the thickness is not enough, may also affect the bonding effect.
In summary, the use of TPU hot melt adhesive film, you need to fully understand and master its classification, melting point, the use of temperature range, as well as the operating environment and other factors, in order to avoid the use of temperature error, to ensure that the bonding effect and the quality of the material itself.

YuChun
Email : info3@greentpu.com
Add:No. 11, Wentang North Road, Wenzhou Road, Dongcheng Dist., Dongguan, Guangdong, China
(Old address:No. 232, Wentang North Road, Wenzhou Road, Dongcheng Dist., Dongguan, Guangdong, China)
· Sample thickness, width to write clearly.
· Sample color and surface effect to be noted.
· Sample hardness and special requirements Please note.
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