Q:Is it a vacuum cup with fluorine coating that affects the health?

Fluorine is a nonmetallic chemical element, chemical symbol F, atomic number 9. Fluorine is the halogen elements of a periodic system of A VII family, located in the second period in the periodic table of elements.

Q:What's the raw material for organic glass fiber reinforced plastic? Thank you.

Plexiglass is made up of reinforcing material and cementing agentReinforcing material: glass fiber, cloth, felt and bandAdhesives: Unsaturated Poly I ester resin, epoxy resin, vinyl resin, phenolic resin and so onOther: curing agents, accelerators, fillers, etc.

Q:Renovation of the house to buy bricks when how to see the quality of good or bad? What kind of good?

Glazed tile of this tile is made of tile bottom and surface of a layer of glazed, that is, in the ceramic embryo on the glaze, after high temperature and high pressure firing, ceramic tile glaze is mainly to increase the beauty of the role of ceramic. Glazed tiles are divided into floor tiles and wall tiles according to the place of use.

Q:As the raw material for glass wool is what

Glass wool is a type of glass fiber, is a kind of artificial inorganic fibers. Quartz, sand, limestone, dolomite and other natural ore as the main raw materials, with a number of soda ash, borax and other chemical raw materials into glass. In the melting state, with the help of external forces, blowing system into floc fiber, fiber and fiber for the solid cross, intertwined with each other, showing a lot of small gap. This gap can be considered as a pore. Therefore, the glass wool can be regarded as a porous material and has good thermal insulation and sound absorption property.

Q:Is the balance pad the raw material in the motor?

Its main function is the use of mechanical energy into electrical energy, the most common is the use of thermal energy, water power, and so on to promote the generator rotor to generate electricity.

Q:A fireproof material is? Except glass wool, rock wool? Please tell me what is the raw material of these materials is?

The performance of phenolic insulation board: 1, excellent fireproof performance: polyurethane and polystyrene and other organic materials, after combustion, will produce smoke and poisonous, easy to cause the deaths, but also increase the difficulty of fire suppression. The phenolic insulation board fire burning, combustion performance up to grade A, the high temperature of 180 DEG C (instantaneous 250 C), 100 mm thick phenolic foam flame resistant capacity of up to 1 hours without penetration. With carbon, no dripping, no curling, no melting phenomenon in the direct effect of flame, the flame surface to form a layer of graphite foam layer, the foam structure effective protection layer in 2, the excellent; insulation properties: low thermal conductivity (

Q:What's the difference between crystal and ordinary glass?

To strike lightly or with fingers. Crystal glass can produce metal crisp sound, and waves a beautiful lingering in the air. We will see at the reception banquet, high-end glasses scenes in the movie, a kind of glass between the collision sound is. And high school, low grade crystal glass sound is also different. Like some low-end crystal glass or ordinary glass voice is relatively boring.

Q:What material is used in the protective film in the middle of glass?

At present, toughened glass membrane of glass raw materials generally have these brands. High end: Corelle & Schott. In the end: asahi. In the low-end: banxiaozi & luoyang.Just look different brands? The difference between JEANSWEST and Reaves? No, focusing on different materials.The same glass, medium and high-end glass called "aluminum silicon glass" in the low-end known as [sodium calcium glass]

Q:Why are most of the chemical instruments made from glass?

Of course, the glass is colorless and transparent is also very important, the front of some people said that the glass is cheap, I would like to deny, in fact, this glass is not often in general glass, high temperature, the cost is much higher than that

Q:What are the raw materials of glass fiber reinforced plastic?

If they are bonded together with synthetic resins, they can be made of rigid products of a fixed shape, bearing both tensile and flexural, compressive, and shear stresses.