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Due to the advent of the 5G era, the trend of dementalization of mobile phone back covers is accelerating. How to find a material that can replace metal in the Mid to low-end market and produce a visually vitrified shell through surface treatment is an urgent problem to be solved.
PC/PMMA composite sheet is an optical grade sheet with a transparent imitation glass effect. It has the advantages of PMMA’s high hardness and wear resistance and PC’s strong toughness and formability. The process is highly achievable and is relatively cost-effective. Glass has certain advantages. From the perspective of 5G communication requirements, composite sheets also meet the requirements for unshielded 5G signal transmission and wireless charging requirements. The composite sheet body has stood out with its colorful craftsmanship and high-cost performance, and is expected to play an important role in the mobile phone market in the future. Open up the situation and become an important choice for fuselage materials.
We Offer a Primary Material
PC/PMMA composite material is an optical grade sheet made of PC and PMMA through a co-extrusion process. It has the advantages of PC and PMMA, including high strength, high toughness, excellent transparency and optical properties. It also has good weather resistance and UV resistance.
Why Choose PC+PMMA Composite Sheet?
For 5G mobile phone covers, glass and ceramics will be the mainstream of 5G mobile phone back covers in the non-metal era. In the 5G era, the current non-metal solutions for curved back covers of 5G mobile phones are as follows:
Glass material: 3D glass or 2.5D glass, decoration technology includes Deco-film solution and spray coating solution;
Plastic solutions: There are composite plate solutions and IML,IMT solutions.
Ceramic solution: There are unibody back cover and middle frame integrated with ceramic, and there are also ceramic back covers only.
“Cost-performance” is the unique advantage of composite panels compared to other non-metallic materials
PC and PMMA composite sheets are comparable to glass in appearance and product characteristics.
Composite sheets can achieve 3D glass effects through texture design and 3D high-pressure molding. Different texture designs and color effects can be satisfied, and they can be thinner and lighter than glass.
At the same time, the composite sheet has stronger drop resistance and wear resistance than ordinary plastic, and meets the test standards for mobile phone back covers.
The cost advantage is an important advantage of composite panels compared to non-metallic materials such as glass and ceramics.
The air high pressure molding process of composite panels is actually derived from the glass hot bending process. Standard composite plastic panels such as PMMA+PC are first placed in the 3D mold cavity for heating, then pressurized, cooled, and finally hardened through various surfaces. After decoration processing, CNC precision molding is used to make the finished product.
In terms of effect, this process presses the film on the mold through segmented high-pressure air. The pressure on the outer surface of the PMMA layer of the product is uniform, which can ensure zero damage to the surface of the optical film material. The CNC precision used in the end Molding greatly improves product accuracy, and the effect is comparable to 3D glass.
But in terms of cost, although it is similar to the glass hot bending process, the process is shorter, the equipment investment is smaller, and the cost is cheaper.
PC and PMMA composite materials can be used to manufacture mobile phone back covers and have the following advantages:
- Excellent transparency: PC and PMMA composite material has high transparency, which can make the back cover of the mobile phone clearer and brighter.
- Good impact resistance: PC and PMMA composite material has good impact resistance and can effectively protect mobile phones from accidental collisions and drops.
- Good heat resistance and weather resistance: PC and PMMA composite material has good heat resistance and weather resistance, which can maintain the stability and durability of the back cover of the mobile phone.
- Easy to process and customize: PC and PMMA composite materials can be customized and processed according to mobile phone design to adapt to different sizes and shapes of mobile phone back covers.
- Good appearance: PC and PMMA composite sheets are easy to process. 3D glass effects can be achieved through texture design and 3D high-pressure molding. Different texture designs and color effects can be satisfied.
- Lightweight: Compared with traditional metal materials, PC and PMMA composite materials are lighter, which can effectively reduce the overall weight of mobile phones and improve portability.
- Low cost: PC and PMMA composite materials have relatively low process difficulty, which can fully improve manufacturing yield and reduce costs.