News Details
Crosslinking agent for wood paint paint
2017-8-13 19:23:54
Crosslinking agent for wood paint paint
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
Paint is a kind of furniture raw material, the taste that decorates to furniture surface, upgrade furniture plays a very important role.
Apparent performance of paint: paint the apparent performance refers to the general can more intuitive feel, such as paint, flow resistance characteristics of flowing property, drying, sanding, such as the accuracy of color performance.
Reasons for not painting:
Coating or coated surfaces containing water, alcohol, oil or wax and other foreign bodies, resulting in wood paint crosslinking agent consumption;
2. The addition of crosslinking agent for the paint of wood or wood is insufficient;
The temperature is too low.
Prevention and cure:
Choose the prescribed diluent (no water, alcohol, acid). Especially banana oil, contains a lot of alcohol solvent, will be to burn a lot of wood paint crosslinking agent, and now there are still a lot of medium and small furniture factory don't choose the diluent of form a complete set, especially when a primer, often result in a primer, sometimes, the surface has dried up, but in fact the same as crosslinking agent, is used up by the large amounts of alcohol solvent resin is not a good crosslinking, hardness is not enough, the result is a primer grinding adhering sand paper or easy to wear, the coating or surface coating, there will be a bit late, foaming, poor poor fullness, hardness, adhesion, such as faults;
To add crosslinking agent according to proportion;
(3) when the room temperature is below 5 ℃, PU paint dry slowly.
Internal performance of paint: evaluation of internal performance of paint is an important index to determine the quality of paint quality.
Viscosity index: viscosity with temperature changes and there will be a bigger change, so the viscosity difference in winter and summer rainy season, sometimes this is not the paint quality is not stable, it is often some furniture manufacturer to paint a myth.
Chinese name: Diethyl toluene diamine(DETDA)Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
A reagent grade additives
2. Non-volatile content indexes: also known as solid content, this index is the only index for evaluating the effective components of paint. At present, there is a misunderstanding in the furniture industry, which thinks that the higher the viscosity of paint, the more water the water can be, and not the effective component of the paint. In fact, the paint in the blending of water eventually will all that day to evaporate into the air, but not retained in the surface of workpiece, blending of water, the more that day, in fact, the greater the waste, and seriously affect the environment. Therefore, low viscosity, high solid paint is the development mainstream of furniture industry.
3. Hardness: hardness is divided into 6 H, 5 H, 4 h3h, 2 H, H, F, HB, 2 B, 3 B, 4 B, 5 B, 6 B, 14 grades, such as ordinary film hardness generally somewhere between B - between 3 H, film hardness, high and low is just paint film performance of a simple indicator, not higher hardness must be good.
4. Adhesion: adhesion is an important representation of the degree of paint and substrate density, and is also the indicator of whether the paint will drop during the long-term use of furniture.
5. Warp: is an important index for the flexibility of paint film. The flexural flexibility of the film is the indicator of the non-cracking and dissection of the furniture during the long-term use.
6. Impact resistance: it is also an important index for the flexibility of paint film. This index is particularly obvious to metallic paint, and the better the impact resistance, the less it is likely to be white and ionosphere in the impact condition.
Cold endurance: the ability to resist cold under low temperature. This performance is a prerequisite for determining whether furniture can be used in cold-weather areas such as northern China.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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