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The Synthesize Of The Basic Magnisium Chloride Whisker And The Research On Application

Posted on:2004-11-02Degree:MasterType:Thesis
Country:ChinaCandidate:J LiFull Text:PDF
GTID:2121360092986265Subject:Chemical processes
Abstract/Summary:PDF Full Text Request
The topic is on the basis of the synthesis of the basic magnesium chloride whisker. The research perform the recycling experiment on the synthesis and property of the basic magnesium chloride whisker by adding ammonia or magnesium chloride and ammonia simultaneously into the mother liquid of crystal and during the synthesization of the basic magnesium chloride whisker, we add the seed crystal, additive, or surfactant in order to increase the yield of crystal. At the same time, The applications of the papermaking, plastics and thermo tropic adhesives on the basic magnesium chloride whisker are studied. The experimental results show that the cycle of the mother liquid increases the yield of the product, the seed crystal can improve long-diameter ratio remarkably, the proper additive reduces the speed of crystal growth and make size distribution homogenize. Through appending different seed crystal and bivalent lead at one time, we may receive when the content of the seed crystal is 0.075% and Pb2+ is 20-50ppm, the yield of the basic magnesium chloride whisker is high and crystal shape is good. The surface active agent can improve dispersion performance of the basic magnesium chloride whisker. The crystal is applied to the papermaking that can raise whiteness and non-transparency, remains-proportion of the crystal is higher than the usual light calcium carbonate. As for plastics, it can improve impact strength in the plastics, its inhibiting-burning capability is advancing bigger than the common inhibiting-burning material of magnesium hydroxide. Concerning the thermo tropic adhesives, the physical property of compound-packing is higher than the one of single-packing, namely remover strength ,softening point, hardness, climate tolerance and the speed of consolidation are high.The experiment settles the foundation for its further application and offers the basis for the yield's improvement of the basic magnesium chloride whisker.
Keywords/Search Tags:the basic magnesium chloride whisker, synthesis, yield, crystal shape, application, additive, surfactant, seed crystal
PDF Full Text Request
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