We are a professional manufacturer of indoor steel-wood door. The steel-wood door is a brand new category in the set. It has gone through more than ten years of development. Its advantages are obvious and will not be repeated. However, the defects and shortcomings are equally obvious, which has become a bottleneck in the future development, jeopardizing the survival of the entire industry. The main performance is that the interior of the door leaf is covered with wooden lining frame, and the honeycomb paper is filled for a long time. Due to the influence of environment and direct sunlight, the wood loses water and shrinks, especially the steel plate and wood of the door leaf frame are easy to produce gaps. Leaving loose, the humid air enters the fan and corrodes the honeycomb paper, causing the entire door leaf to loosen, which is serious enough to even fall apart. Second, there are two types of door sleeves used in the system. One is the multi-layer board external reinforcement reinforced veneer, the other is the steel sheet sprayed with wood strips, the honeycomb paper is filled, and the door leaf is similar (the problem arises) Also like the door leaf), both types are equipped with wood-plastic or plastic steel lines. When using home decoration, the environment is dry, the sunlight is not strong, and the opening frequency is not high, there will be no problem. But for engineering renovation, such as hospitals, schools, office doors, places of use, environment, direct sunlight, use intensity, different from ordinary home decoration, there will be problems in different degrees, lines discoloration, sets of layers, loose shelves . There is also a door panel, the door sleeve material is high in wood, and the installation cost is high. As mentioned above, the future development of steel-wood door has been restricted, so Tancheng told us that we are committed to the people with lofty ideals in this area, can we have good technology, good craftsmanship, and good materials to transform the current state, such as The door leaf is filled with a polyester foaming agent instead of the honeycomb paper. The door panel and the door sleeve are made of steel plate, formed by the factory, and the hardware fittings are installed on the site to reduce the cost and be durable, convenient for packaging and transportation, and the installation is simple and quick. With this convenient technical process, everyone can discuss and discuss together, or work together and hope to reply.
Polyacrylamide (PAM) is a water-soluble polymer, which is insoluble in most organic solvents, has good flocculating properties, can reduce frictional resistance between liquids, Can be divided into non-ionic, anionic, cationic and amphoteric four types.
When PAM is used for flocculation, it is related to the surface properties of the species being flocculated, especially the potential, viscosity, turbidity, and pH of the suspension. The kinetic potential of the particle surface is the reason for particle inhibition. Can reduce the potential and condense.
Granular polyacrylamide flocculant cannot be directly added to sewage. It must be dissolved in water before use, and its aqueous solution are used to treat sewage.The water in which the particulate polymer is dissolved should be clean. Generally tap water is suitable for formulating polymer solutions. Strong ACID, strong alkali, high salt water is not suitable for preparation. Water at room temperature is ok, no necessary to heat. Dissolution is slow when the water temperature is below 5 ° C. Increasing the water temperature will accelerate the dissolution rate, but above 40 ° C will accelerate the degradation of the polymer and affect the use effect. The solution concentration is recommended to be 0.1% -0.3%.
Polyacrylamide
Oil Extraction Polyacrylamide,Papermaking Polyacrylamide,Food Grade Polyacrylamide,Medical Materials Polyacrylamide
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