What materials are often used in sunglasses frames?

What materials are often used in sunglasses frames?

Summer is here, of course you must wear a pair of beautiful sunglasses when you go out! It can not only be used as an ornament to improve   the appearance, but also block harmful rays such as ultraviolet rays, reduce glare, and effectively protect the eyes from damage. It is really a   must-have product for travel. I believe that many people now have a pair of sunglasses in their hands, so do you know which materials are   often   used in your sunglasses frames?

1. Cellulose propionate resin: CP material for short, has proper elasticity and toughness; it can be dissolved in solvent to form a shape,

so the material should avoid   contact with organic solvents such as acetone and banana water;

CP material is not easy to oxidize and decompose in the atmosphere , aging, not easy to burn, its plasticity and fluidity are good, so the   processing and coloring methods are various, and rich and changeable colors can be made. Based on the stability of CP materials.

2. Polycarbonate: referred to as PC material, specific gravity 1.2, non-combustible, odorless and non-toxic resin,

in line with the regulations of the FDA and the US Drug Administration, and its characteristics are the same as PC lenses.

3. Epoxy resin: Also known as EP plastic, it has good temperature resistance, is 30% lighter than ordinary plastic, has high strength,

high hardness and good elasticity, and can be made into thin and light spectacle frames. At the same time, it has a special memory function,

so it is also called memory plastic, which is often used to make high-end mirror frames and temples.

4. Manganese-nickel alloy: an alloy with manganese and nickel as the main alloying elements. Manganese-nickel alloy has good mechanical

strength and corrosion resistance.

5. TR-90 material (super toughness memory resin material imported from Switzerland): super toughness: prevent the frame from

deforming or even breaking during   exercise, and protect the face from injury. Memory function: special memory function,

anti-deformation index up to 620kg/cm 2. Lightweight: TR-90, which is 30% lighter than the plate, can effectively reduce the weight of

the glasses and make them more comfortable to wear. Impact resistance: effectively resist the impact of external force, it is more than two   parts of the plate.

6. Aluminum-magnesium alloy material: lightweight, environmentally friendly and durable. This material is now widely used in high-tech   products such as mobile phones and laptop computers.

7. Titanium material: During the heating process of titanium metal, when the temperature exceeds 860 degrees, its molecular structure will   change and form β titanium. The density structure of β titanium is better than that of titanium metal, so its elasticity is better than that of   titanium metal, and its price is also three times that of titanium metal! Due to its higher hardness than titanium metal, it is more difficult and   cumbersome than titanium metal in the process of technical processing.

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What material are your sunglasses frames made of? What kind of material do you like? For those who don’t have sunglasses yet, go and buy   a pair, so that the summer sun will no longer be dazzling!