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Why Are The Colors Of Most Outdoor PE Wood Plastic Products Such As Wood Plastic Flooring Very Earthy

Shanghai Seven Trust wood plastic has achieved some achievements from understanding the wood plastic industry. I used to know a little about this because of professional reasons in the university. Some of the school's student plans, including entering the laboratory to do experiments, are in the direction of wood plastic. I remember that at that time, we were doing our own experiments. Everyone knows the color of wood plastic, it is a bit yellow, so the board made by experiment is yellow and yellow. At that time, I was mixing rubber, pressing plates, cutting boards, and doing various tests a day, and I did a few books of data. It felt very far away to come to those days.

Do you feel that although there are many wood plastic manufacturers, the color system they make is actually the same. Basically they are very simple and earthy colors. (I'm talking about outdoor PE wood plastic products. PVC is very different from PE wood plastic because of its superior coloring performance and the place and conditions where PVC wood plastic is used.)

Participating in the exhibition is the fastest way to compare this color system. Looking at the color chart, it is nothing more than the concentrated colors, brown, dark coffee, black, mahogany, teak, log yellow, gray and so on. Everyone is almost like this relatively simple color.

Why are the colors of most outdoor PE wood plastic products such as wood plastic flooring very earthy?

I think there are three reasons:

First, the wood plastic flooring are made into relatively simple colors, which can better match the effect of natural landscapes. Especially for the overall garden engineering landscape. We can observe and find that, in fact, the natural colors outdoors are also relatively simple colors, which are colors that will not make people feel amazing or obtrusive. To make the overall effect of the garden landscape, it must also imitate the natural feeling, and the color selection will be biased towards colors that are closer to the simple colors of nature.

Second, in combination with PE wood plastic composite materials, the difficulty of plain color is relatively low. Plain color pigments are generally inorganic pigments, such as iron black, iron red, iron yellow, carbon black and other small-molecule pigments. These small molecular colorants are evenly distributed in the composite material and are well combined with wood powder particles. The disadvantage is that the amount of use is relatively large, which is equivalent to a little filler, which reduces the performance of the composite material.

And we have seen very bright colors, they are generally used organic materials. Rely on mutual solubility with polymer plastics to obtain brighter colors. However, the general addition amount is more than an order of magnitude smaller than that of inorganic pigments, and the proportion is very low. It is more difficult to mix and uniformly plasticize composite materials, and it is more likely to cause uneven color.

The third is that bright colors fade faster and fade more. Inorganic pigments are small molecules, with strong aging resistance, strong ultraviolet ray ability, stable structure, and stable color appearance. Only the color fade caused by partial shedding of the surface pigment occurs. When organic pigments are used outdoors, not only are the surface pigments falling off due to stepping, but also due to aging, ultraviolet rays and other molecular structure changes such as chain segment breaks, functional group changes, etc., which cause sudden color changes.

Therefore, the major manufacturers often use the very simple color as the main product in this product. Of course, there will be some brighter colors, but I think I will explain the truth of this color to the guests.

Seven Trust

Seven Trust, Author

China's leading wood-plastic manufacturer and supplier. Design inspiration and products - to provide customers with perfect outdoor landscape solutions.

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