Q:What does the structural unit of a chemical polymer mean?

Is the "link", such as ethylene, the structural unit is -CH?-CH?-

Q:How much is the ratio of one kilogram of paint to thinner?

There is no fixed standard, according to the season, using different tools for debugging. In general, the use of high-pressure airless spray, add 0-5% thinner, air spray, generally adjusted to the appropriate viscosity, coated -4 cups about 18-25 seconds, add thinner 5% -15%, roller is almost , The viscosity can be slightly larger than the air spray, this depends on the workers of the construction habits, construction technology considerations

Q:I am the Epson R230 is now the dye with the supply, I heard that modified paint to play pictures for a long time, will not fade, I would like to ask how the modified paint, If the modified paint, is not only print photos? The color will not be better than the fuel effect, want to know the friend can tell you no time to add you next time

Dye ink colorful, ink fluency, cheap. The biggest drawback is easy to be outside the light, air humidity and other factors, especially the strong light is easy to fade photos, save time is not long. Pigment ink is not easy to fade, you can save for decades, little change in color. But the color of the printed picture is not satisfactory, always gives a contrast is not enough, there is a slightly dark feeling. And the ink price is very expensive, ink fluency is poor, easy to plug. Replace the pigment ink, the best replacement with the supply, do not use the original even for the supply. Because once the deal is not good, the risk of nozzle clogging is larger.

Q:How is the dye made?

The basic raw materials (benzene, naphthalene, anthracene, etc.) through the nitrification, sulfonation, halogenation, reduction, alkali, ammoniation, hydrolysis, acylation and other chemical reactions, made of dye intermediates.

Q:shine like car paint but how?

I use oil based high gloss paints. First of all I sand the surface using three different sand papers, starting with the most coarse and working my way to the finest. I wipe it clean with methylated spirits because it dries instantly and there is no water to make the timber swell or affect the paint in any way. I apply a good quality undercoat, usually oil based. If you can find a ridge filler undercoat, it will help even out flaws. If you have large pits or dents you might want to fill with an appropriate filler. Leave for a minimum of 12 hours and sand with a fine grade paper. Wipe off with metho again. Feel with your fingers - if you can feel bumps you will be able to see them, so you may need to sand a little more. For the paint: use the best quality brush you can afford. Ask for advice in the paint store if you are unsure. Load your brush with a small amount of paint. If it's a small item you should be able to do a stroke the full length in one go. If not, you will need to reload mid stroke. Apply the paint, reload and pick up where you left off. When one length is complete, go back and lay off in the opposite direction, that is to brush the paint all in the same direction. Work quickly. When you have completed your first coat, leave to dry for a minimum of 12 hours and repeat the sand and paint process again. I usually do three coats of oil based paint, but you may not need to. If I'm doing a clear finish on a timber project, I will rub boiled linseed oil into the clear finish with a very, very fine steel wool. It gives a lovely soft finish. There are also two pack products available which can be sprayed on and give a very high gloss finish, but I have never used those.

Q:How long does the ink on the inkjet printer cover up for a long time?

After opening the general preservation time is half a year, but this should ensure that the ink is not subject to 2 times the case of pollution

Q:White paint and green paint mixed together what smoke

Or green is green more and more shallow!

Q:Can textile dyes mix with luminous powder?

Mixing is impossible. Luminous powder can only be attached to the clothes as a coating.

Q:Polymer curing process often used DSC, DSC What does it mean

Differential scanning calorimetry can be used to study the changes in temperature and enthalpy of the polymer during curing.

Q:I need to paint my house, how can I do it.

Use a 'paint by numbers' method.