Brand: Xindakang
Model: XDK-901
Price: CNY 40 / kg
Min. Order: 100 kg
Hydrotalcide
LDHs
stabilizing agent
Hydrotalcide (LDHs)
Layerde Double Hydrotalcides (LDHs) is a kind of the anion layered function inorganic material that has the laminated structure. It has the Invariable chemical composition and the unique chemical structure and performance. Its model chemical formula of aluminum magnesium hydrotalcides is: [Mg6Al2(OH)16CO3].4H2O]. Hydrotalcides have many functions to a body packing and theimprovement raw material such as burning inhibitor, insulation agent, the stabilizer, the stain, the smooth medicinal preparation, the anti-aged medicinal preparation, the anti- ultraviolet ray medicinalpreparation and so on..
Technology qualitative index of aluminum magnesium hydrotalcides:
(1)character: white powder;(2)white degree:L>90%;(3) average grain diameter: 15μm;(4) relative surface product: 5-20m2/g;(5)density:1.46g/cm3;(6)PH value（10% suspending liquid
）：7-9;(7)MgO:32-40%;(8)Al2O3:14-18%;(9)moisture content≤1.0%;(10)absorbent oil
value:0.31ml/g;(11)attached water<5%;(12)Ignition decrement:36-44%.
Performance of hydrotalcides:
(1)The aluminum magnesium hydrotalcides is the fine environmental protectionburning inhibitor that have highly effective, non-toxic, lower smoking,high performance price ratio. It concurrently has the magnesium hydroxide and the aluminum hydroxidesimilar structure and the composition. It releases the massive water and the carbon dioxide and certainly absorbs the massive heat when it is heated. Then ia can reduce the burning systemthe temperature. The steam and the carbon dioxide gas that the decomposition released can emit dilutes and cut off the ignitable gas.The magnalium oxide produced by thermal decomposition ang carbide that polymer material burned forms compound forms the protective film in the material surface. Thus has been cut off the oxygen further invasion, also gets up anti-burns the effect. The solid product of hydrotalcides particals decomposed have very big relative surface and very strong alkalinity and can absorb the acidic gas and the smog released by material thermal decomposition and transforms the corresponding compound, Thus plays the role of damping the smoke and disappearing the smoke. Therefore it is very hopeful friendly disappears the smoke non-toxicnon- halogen burning inhibitor new variety to the environment.Its anti- burns performance obviously to surpass the aluminumhydroxide and the magnesium hydroxide and moreover concurrently two merits.
(2) Hydrotalcides is the non-toxic heat-stable material.LDHs may highly effective take, non-toxic, the moderate price heat-stablemedicinal preparation used as polyvinyl-chloride(PVC).It may effectively absorb HCl which decomposes in the processing and the use process of PVC produces and enhances PVC the processing condition and the thermostability. It may with the organic tin or the lead zinc took together theheat-stable medicinal preparation, or helps the medicinal preparationwith other to use together, further enhances PVC the thermostability.LDHs itself is non-toxic, but it replaces the lead salt and othermetal class to make the stabilizer in
wide range,also may use in food pack PVC.
(3) Hydrotalcides can mixes uses with other preparations,besides may improve the high polymer material the thermal stability,but also may improve their other performances such as mechanical strength, anti- aged temperature, product apparentbrightness, insulating ability, anti- static electricity performance,anti- ultraviolet ray performance and so on. Hydrotalcides also have good heat insulation, can promote infrared absorption of PVC agricultural membrane and enhances the agricultural membrane the heat preservation.
Uses of Hydrotalcides:
(1)used as packing improvement medicinal preparation of anti-burns, stablity, insulation, coloration, theanti-ultraviolet ray and so on the multi-purpose in plastic, rubber, chemical fiber etc polymer material.