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In this paper, wax grafted with acrylic acid , methyl methacrylate grafted with paraffin , wax and acrylic acid grafted aniline was prepared by acylation of high phase transition temperature of high phase change latent heat of modified paraffin wax and paraffin molecules of modified structure on the phase transition temperature , phase change latent heat. Benzoyl peroxide (BPO) as initiator, use acrylic wax grafted polar monomers . Affect the reaction obtained by orthogonal experiment grafting rate of the main factors . The results showed that the reaction temperature on the reaction rate of grafting the greatest impact ; DSC characterization obtained compared with paraffin , acrylic acid grafted paraffin phase transition temperature has increased by 12.8% , the latent heat increased by 36.2% . With BPO as initiator , the use of methyl methacrylate monomer grafting wax . The effects of reaction temperature, reaction time , initiator concentration and amount of the monomer on the grafting rate. The results show that when the reaction temperature is 100 ℃, reaction time was 3h, BPO and monomer used were 2% and 57 %, the grafting rate is highest ; DSC characterization to obtain methyl methacrylate grafted raise the temperature of paraffin wax 12.9% , and its latent heat to a maximum increase of nearly 50% . Using grafting wax and acrylic amide was prepared aniline modified paraffin, paraffin amidation modification phase transition temperature has increased by 16.3% , the latent heat by nearly 60%. Compare the three modified paraffin wax , paraffin wax and then grafted with acrylic acid acylated aniline paraffin best modification method . Test test plate method using a phase change material paraffin temperature effect , the experimental results combined with Stefan - Boltzmann law to explore the phase transition temperature of the paraffin-based materials for infrared stealth feasibility . The results show that , if applied to the target infrared stealth paraffin , wax paper can be chemically modified so that , in theory at least reduce 41.85% of radiant energy to achieve infrared stealth effect .
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