Application of foaming plastics
DATE：2021/11/24 8:38:40 / READ： / SOURCE：This station
Application of foaming plastics
1. Make insulation materials
In the construction industry, transportation industry and chemical industry as thermal insulation materials.
2. Used for agriculture, flower exhibition and transportation
Urea-formaldehyde foam can absorb nutrients and medicines, and then slowly release them. At the same time, bacteria in the soil can decompose urea-formaldehyde foam and release nitrogen. Therefore, mixing this kind of foam into the soil serves not only as a fertilizer carrier, but also as a fertilizer. In addition, it can prevent excessive water loss during droughts and prevent nutrients from being washed away during heavy rains. Urea-formaldehyde foam plastics are widely used in flower arrangements in the United States, making the flowers unbeaten within a few days. When transporting flowers and delicate fruit trees, as a container for keeping water and nutrients for a long time
3. Used in the paper industry
Urea-formaldehyde foam can replace part of wood pulp for papermaking. The paper mixed with wood pulp is soft and has a water absorption rate of 4.0 to 5.5 times higher than that of paper made with general wood pulp, and the water absorption speed is hundreds of times faster. This kind of paper can be used to make bandages with high absorption capacity.
4. For medical and health
After the plasticized urea-formaldehyde foam is sterilized, it can be made into surgical sponges and dressing articles, which can be used in wounds that require absorption and ventilation, and can promote wound healing.
5. Other applications
Shock-absorbing packaging, making foam concrete; core materials and floating body fillers for structural panels; snow scenes in dramas and movies; as adhesives for bonding wood, paper, synthetic fibers, canvas, etc.
Author：admin