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)
How does the TPU hot melt adhesive film work
TPU hot melt adhesive film is a kind of TPU film and also a kind of adhesive. When it comes to glue, everyone must know that glue is used to bond things. However, people's impression of glue is often liquid, and it must be sticky to the touch. Is this kind of plastic film slippery to the touch really glue? How can TPU hot melt adhesive film stick things? Many people may have such doubts. Here Tepuyou explains how the TPU hot melt adhesive film plays a bonding role
Mechanical combination
The adhesion between TPU hot melt adhesive film and the adherend is mechanical adhesion. After the adhesive is applied on the bonding surface, because the TPU hot melt adhesive film penetrates into the pores of the adherent, and then it is dried, so that the sliding friction between the TPU hot melt adhesive film and the adherent can be generated to increase the mutual adhesion.
Interdiffusion
The adhesion between polymer materials and chemicals is due to the diffusion of biopolymer itself or its chain segments through thermal movement. In essence, the interface is mutually dissolved, and then the TPU hot melt adhesive film is generated to interweave with the adherent molecules to form a firm bond. The diffusion rate is related to temperature and pressure.
Chemical reaction
The chemical crosslinking of TPU hot melt adhesive film reflects the interface between the film and the adherent, and the combination of hydrogen bond, coordination bond and chemical bond.
The main component of TPU hot melt adhesive film is polyurethane. This material has different properties according to its high melting point and low melting point. The color of TPU hot melt adhesive film with medium temperature and high temperature melting point is transparent and elastic. The higher the melting point, the better the elasticity and transparency of TPU hot melt adhesive film; The low temperature TPU hot melt adhesive film is white and translucent, and has no elasticity. The above explains how the TPU hot melt adhesive film plays a bonding role. If you want to know more, you can browse our other articles or call us directly.
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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我司拥有多套完整的生产线;掌握自主研发的核心技术;通过了ISO9001:2015质量管理体系认证;是阿里巴巴深度验厂的厂家;TPU薄膜和TPU热熔胶膜产品通过了SGS测试,取得了测试报告。
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