What is EVA glasses case made of? 30

Updated on healthy 2024-03-27
4 answers
  1. Anonymous users2024-02-07

    EVA is a rubber material, chemical Chinese name: ethylene-vinyl acetate copolymer English chemical name: ethylene-vinyl acetate copo ethylene-vinyl acetate copolymer.

    Abbreviation of Token: EVA

    Main uses: It can also be used as a packaging film, gasket, gasket, cable insulation, cable insulation, etc. EVA resin is an ethylene-vinyl acetate copolymer with a general vinyl acetate (VA) content of 5% to 40%.

    Compared with polyethylene, EVA is widely used in foamed shoe materials, functional shed films, packaging films, hot melt adhesives, wires and cables, toys and other fields due to the introduction of vinyl acetate monomer in the molecular chain, which reduces high crystallinity, improves flexibility, impact resistance, filler compatibility and heat sealing performance.

    It is a relatively common midsole material, usually called a foam to have a certain cushioning effect, but this material is very slippery, so it is generally mixed with hard rubber, EVA is an ordinary material, which is available on many sneakers but is difficult to compare with Air in terms of effect.

  2. Anonymous users2024-02-06

    It is a mixed material of gum fibers, which was used to make travel shoes in the early days, and is now mixed with titanium alloy to make glasses cases and glasses skeletons.

  3. Anonymous users2024-02-05

    EVA is a rubber material, chemical Chinese name:

    Ethylene-vinyl acetate copolymer.

    English name of the chemical:

    ethylene-vinyl

    acetate

    Copo ethylene-vinyl acetate copolymer.

    Abbreviation of Token: EVA

    Main uses: It can also be used as a packaging film, gasket, gasket, cable insulation, cable insulation, etc. EVA resin is an ethylene-vinyl acetate copolymer with a general vinyl acetate (VA) content of 5% to 40%.

    Compared with polyethylene, EVA is widely used in foamed shoe materials, functional shed films, packaging films, hot melt adhesives, wires and cables, toys and other fields due to the introduction of vinyl acetate monomer in the molecular chain, which reduces high crystallinity, improves flexibility, impact resistance, filler compatibility and heat sealing performance.

    It is a relatively common midsole material, usually called a foam with a certain cushioning effect, but this material is very slippery, so it is generally mixed with hard rubber, EVA is an ordinary material.

    It is found on many sneakers, but it is still difficult to compare with the air in terms of effect.

  4. Anonymous users2024-02-04

    There are many shapes of EVA glasses case machines of different shapes, and this is one of them, and its specifications are divided into 700*600mm-600*800mm-600*900mm Huahui D-H400-1008 729

Related questions
7 answers2024-03-27

The author has been depressed After coming out of the shadows, what he did Although it is a little difficult to understand, but it is for teenagers to know themselves, don't be afraid to contact with reality, and the ending is also to let people roll back into reality, and there are only two people left, but when the human beings who have made up for it realize their true self, they can accept their imperfections, and they can change back again, and make up for their own imperfections, and evolve because human beings have reached a bottleneck, and in the end, they are all made up for the integration they want that they can't get. The name is called New World Evangelion, and it's the gospel for children, plus the early meaningful machine warfare anime is called a god In fact, God is still a masterpiece It's about people Look if you can understand it Love doesn't like to watch Don't others say it's a god and blindly think it's a god If you think it's not wrong, it's the most annoying kind of person who says it's a god at every turn when it introduces the anime, loves to see it, and doesn't look at it.

7 answers2024-03-27

1.The first is the explanation of the S2 mechanism itself. S2 is super >>>More

51 answers2024-03-27

I have to say that now the blind box really occupies a large part of the market, although I haven't bought the blind box, but I really like to watch the process of unpacking the blind box by the blogger above. In my opinion, the reason why the blind box is attractive is that it can bring different surprises to people, especially for girls, they are super like unexpected surprises。In addition to the cheaper blind boxes on the market, there are some larger brands that will also launch their own blind box products during the New Year's holidays, such as Starbucks has also launched blind boxes to welcome Christmas, and many bloggers have seen a lot of exquisite cups when they open them, just as a viewer will find it super interesting, not to mention the blind box itself? >>>More

7 answers2024-03-27

The management system of Yisoft optical store includes the integrated management system of charging, customer registration, optometry management, glasses management, financial management and inspection report and inventory management of the entire optical store. You can browse the customer's optometry prescription at any time, and after comparing multiple prescriptions, you can quickly and easily understand the patient's best effect. >>>More

6 answers2024-03-27

3D glasses need to be used with 3D movies, and it is useless to watch ordinary movies. >>>More