Study On The Preparation And Performance Of Antireflection Film Of Stain-resistant Solar Absorber Plate

During the recent years, the thin-film optical coating speeds up withthe present technology, in particular with the computer art that hasbrought immense convenience to the analysis of the film theory. Thin-filmoptical coating has become one of the important element in modernphotology; without it, numbers of modern optical facilities will fail togive play, because it is vital whether in the advance or the tone-downof reflectivity, absorptivity and transmissivity, or the uncoupling andmerging of light beams, or the delimitation of colors, or the beampolarization and the bais detection, or the passing and blocking of somespectral band, as well as the modulation of phases. The thin film playsa key role in many aspects. And the handy, steady and light thin-filmdevice will be provided with more room.Chapter I summarizes the study and application of the currentantireflection materials wherein efficient anti-reflective films havebeen prepared, numbers of original structures have been schemed, andwidely used in anti-fouling, photoelectric materials and photoelectricconversion; however, the escalating material requirements for theneo-typed functions in modern life and production have raised suchquestions as the preparation of higher antireflection, self-cleaning,structural durability, anti-scratching, and wear-resisting. Based onwhat’s mentioned, we’ve started this project.Chapter II prepares a series of fluoric organo-inorganic hybridprecursor liquids of diverse compounding ratios and obtains a series ofhybrid films based on the solar powered absorber plates by the agency ofthe dipping method. The hydrophilic and antireflection nature of thehybrid films has been attributed in detail. And the hybrid film with a preferable hydrophobic property has been received with its looping angleover100°. Through the change of the precursor liquid we’ve found thatunder the precondition of a better hydrophobicity and mechanical behavior,the hybrid film derived from0.1%liquid has an upscaled result inanti-reflexion, and its optical degree of transparency reaching over92%.Chapter III prepares a series of different fluoric organo-inorganicpaintcoats of hybrid antireflection under favour of the sol-gel processand multiple coated dipcoating; the utilization of radical polymerizatonleads to the hydrophilic polymer solution and further multi-hybrid filmsin series with the use of the absorbing sheet backing of the solar energy.And the hydrophilic and antireflection nature of the hybrid films has beenattributed in detail. Moreover, the hybrid film with a preferablehydrophobic nature has come up. After the multilayer coating, the natureof antireflection has improved, the mechanical property has boosted; thesignificance testing of their antireflection proves that under thecondition of the better hydrophobic nature and mechanical properties,three-layers of hybrid film has a better effect of antireflection, itsradio-degree of transparency reaching over94%.