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The Weifang Tainuo chemical industry Limited company is located in “the world kite” - - Weifang, south near the rubber Jinan railroad, north depends on 309 federal highways, the blue silver highway, the geographical position is superior, the traffic conditions are convenient. in 2006 sets up with joint forces by the original Shandong four stars in the bowl of the big dipper specialized team, is domestic devotes to the development green environmental protection safety product for the mission specialty company.
The fertilization method of potted plant fertilizer is different in each season. The spring and autumn season is the growing period of plants, and the demand for fertilizer is relatively large, so the amount of fertilizer needs to be increased. A small amount of fertilizer in summer, summer evening is the best time to fertilize, to avoid sunburn. When plants stop growing in winter, no fertilizer is needed.
Melamine is a chemical compound with numerous industrial use, including the production of plastics, dishware, kitchenware, commercial filters, laminates, adhesives, molding compounds, coatings, and flame retardants. Melamine is an important nitrogen heterocycle organic chemical material, it presents alkalescence and reacts with various acidums to generate melamine salt.
Melamine is an important nitrogen heterocycle organic chemical material, it presents alkalescence and reacts with various acids to generate melamine salt. It offers a smooth, easy-to-clean finish that is ready to use without much construction waste or need to paint or stain. It has fire retardant properties due to its tendency to release nitrogen gas when burnt.
Living during the twenty-first century, melamine becomes a necessary element in our daily life. Melamine is an important nitrogen heterocycle organic chemical material, it presents alkalescence and reacts with various acidums to generate melamine salt. It can be used to manufacture cooking utensils,
Views:0 Author:艾彩霞 Publish Time: 2019-04-30 Origin:Site
Since the partially alcoholized PVA contains more acetate groups, and the volume of the acetate group is much larger than the hydroxyl group, there is a large steric hindrance, so that the partially alcoholized PVA cannot form a compact crystal structure. It can only form loose structures with large spaces between molecules, which can absorb more air.In the process of boiling size,because the size has a certain viscosity,it provents the small bubbles from escaping from the size surface,and forms the accumulation of small bubbles,which produces greater energy,thus making the size overflow the size mixing kettle.If there still is bubble in the sizing box,a foam layer will form form on the surface of the sizing,which will affect the operation of the worker and also affect the sizing quality.
The way to eliminatiing the foam is to add an antifoaming agent in the sizing box or the mixing kettle.The antifoaming agent is actually a sufactant with few hydrophilic groups,which can reduce the surface tension of the foam and rapidly break the foam,thereby reducing the accumulation of the foam and achieving the purpose of defoaming.
