Resin core shell/SiO2 aerogel composite particle, preparation method of resin core shell/SiO2 aerogel composite particle, aerogel air guide plate, preparation method of aerogel air guide plate and air conditioner
A technology of composite particles and airgel, applied in the field of materials, can solve problems such as condensation on wind deflectors, and achieve the effects of weakening sound energy, small thermal conductivity, and high porosity
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no. 1 Embodiment approach
[0045] Embodiment 1: Resin core-shell / SiO 2 Airgel composite particle and preparation method thereof
[0046] Such as Figure 6 As shown, the resin core-shell / SiO of the first embodiment of the present invention 2 Airgel composite particles include a core-shell 1 made of resin and SiO wrapped in the core-shell 1 2 The airgel 2, wherein the resin material of the core-shell 1 is preferably a thermoplastic material, can be processed into other desired shapes or structures by injection molding.
[0047] Such as figure 1 As shown, the above resin core-shell / SiO 2 The preparation method of airgel composite particle comprises the following steps:
[0048] (1) Add the dispersant, the monomer used for synthetic resin and the initiator into the organic solution, mix well, disperse evenly, and obtain the first solution system.
[0049] (2) SiO 2 The airgel is added to the organic solvent and mixed thoroughly, and after adding the dispersant, it is uniformly dispersed by ultrasonic...
no. 2 Embodiment approach
[0055] The second embodiment: airgel wind deflector and its preparation method
[0056] Such as Figure 4 As shown, the airgel air deflector according to the second embodiment of the present invention includes a plate body 3 and a plurality of ventilation openings 4 opened on the plate body 3 . The microstructure inside the plate body 3 is as Figure 5 As shown, it contains several resin core-shell / SiO provided by the first embodiment 2 Airgel composite particles.
[0057] Such as image 3 As shown, the preparation method of the above-mentioned airgel wind deflector comprises the following steps:
[0058] (1) Preparation of resin core-shell / SiO 2 Airgel composite particles;
[0059] (2) Resin core-shell / SiO 2 The airgel composite particle is injected and punched to obtain the airgel wind deflector. During the injection molding process of composite particles, after the core-shell structure is melted, the core-shell structure is SiO 2 Airgel, whose destruction temperatu...
Embodiment 1
[0063] Such as figure 2 As shown, a resin PS core-shell / SiO 2 Preparation method of airgel composite particles.
[0064] Weigh a certain amount of styrene, wash it with 5% NaOH by mass fraction, let it stand for a period of time, pour off the lower layer liquid, repeat 3 times, then wash 2 times with deionized water, then add dispersant PVP-K30, and mix the above components Add the ethanol aqueous solution with a ratio of alcohol to water of 9:1, and finally add the initiator AIBN, mix well to obtain the first solution system, and the concentration of AIBN in the first solution system is 0.006g / mL;
[0065] Dissolve the dispersant PVP-K30 into the ethanol aqueous solution with the alcohol-to-water ratio formula of 9:1, and add a certain amount of SiO 2 airgel, where SiO 2 The mass ratio of airgel to styrene monomer is 1:20, the total amount of dispersant and SiO 2 The airgel mass ratio is 1:1, ultrasonic treatment is performed at an ultrasonic power of 500W for 15 minutes...
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Abstract
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