66results about How to "Strong moisture absorption" patented technology

A preparation method of phosphorus pentafluoride gas comprises a step of causing phosphorus pentachloride to react with anhydrous hydrogen fluoride, wherein, the reaction occurs in the presence of a solvent. A preparation method of lithium hexaflourophosphate comprises a contact reaction between solid lithium fluoride and phosphorus pentafluoride gas, wherein the phosphorus pentafluoride gas is prepared by the method of the invention. Compared with the preparation method of the lithium hexaflourophosphate with the phosphorus pentafluoride gas as the raw material in the prior art, the phosphorus pentafluoride gas prepared by the preparation method of the invention has higher purity and lower cost. The yield of the lithium hexaflourophosphate prepared by the method of the invention is higher than 93%, and the purity thereof is up to 99.95%.

The invention relates to woven bamboo charcoal fabric series woollen blankets using bamboo charcoal fabric and other components as raw materials. The material comprises following components by weight percentage: face yarns : bamboo charcoal fabric : 20%; other raw materials: 80%; bottom material: 100; wherein the other raw materials of the face yarn are one or several types selected from cotton, wool, real silk, chinlon, polypropylene, acrylic fibre, dacron and fabric; the bottom material is dacron; the material compatibility of the invented bamboo charcoal fabric woollen blanket is reasonable, and the invented bamboo charcoal fabric woollen blanket is provided with good weaving performance and moderate price, and accords with market demand; strong ultraviolet resistant ability and adsorption decomposition capacity of bamboo charcoal fibrous are utilized sufficiently; bamboo charcoal fabric raschel woollen blankets, acrylic bamboo charcoal fabric woollen blankets and coral fur bamboo charcoal fabric woollen blankets made by above materials are enriched of metallic elements such as potassium, magnesium, calcium, aluminum, zirconium, manganese and other carbides, have strong far-infrared ray emitting and negative ion emitting functions; and have strong moisture-guiding, moisture absorption, drying, deodor and bacteria inhibition functions.

The present invention relates to a flux for heat-resistant magnesium alloy. It is used for melt protection in the course of smelting heat-resistant magnesium alloy. It is characterized by that its composition includes (by wt%) 5%-10% of NaCl, 5%-12% of CaF2, 5%-15% of Na3AlF6, 10%-20% of CaCl2, 0%-5% of MgCO3, 0%-3% of H3BO4 and the rest is Kcl.

The invention relates to a blocking-prevention dust compactor which comprises a shell (1), wherein the shell (1) is internally provided with a screw rod shaft (2); an inlet end of the shell (1) is provided with a compaction speed-reduction motor (3); an output end of the compaction speed-reduction motor (3) is connected with the screw rod shaft (2); an outlet end of the shell (1) is connected with an end cover (5) through a hinge (4); the outer side of the end cover (5) is provided with a balancing weight (6). The blocking-prevention dust compactor provided by the invention can be adaptive to the compaction and removing of dust with multiple kinds of characteristics, and can prevent blocking, so that the dust volume is reduced; dust can not fly easily during the collection process; the dust collection efficiency is improved; the surrounding environment also cannot be influenced.