Hydrophobic granule and preparation method thereof, and waterproof breathable structure and forming method thereof
A hydrophobic particle, waterproof and breathable technology, applied in the field of anti-seepage materials, can solve the problems of poor anti-seepage effect and poor air permeability of anti-seepage materials, and achieve good environmental protection benefits, good water resistance, good social benefits and economic benefits.
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[0053] In addition, the present invention also provides a method for preparing the above-mentioned hydrophobic particles, the method comprising the following steps:
[0054] Step 1: heating the aggregate to 50-400°C;
[0055] Step 2: Add hydrophobic resin and stir evenly to coat the aggregate surface;
[0056] Step 3: cooling, crushing and sieving to obtain hydrophobic particles.
[0057] Wherein, in step 1, the aggregate preferably has a particle size of 6-300 mesh quartz sand, slag, ceramsite and glass beads, more preferably 100-200 mesh quartz sand. In addition, the heating temperature is preferably from 100 to 240°C.
[0058] In the step 2, the addition amount of the hydrophobic resin accounts for 1-8% of the mass of the aggregate. Moreover, the hydrophobic resin is selected from one or more of hydrophobic epoxy resins, phenolic resins, polyurethane resins, and silicone resins. Preferably, the hydrophobic epoxy resin is glycidyl ether epoxy resin, glycidyl ester epoxy ...
Embodiment 1
[0072] Select 100 grams of 6-mesh quartz sand particles, heat to 50 ° C, then add 6 grams of liquid polyvinyl alcohol tert-butyraldehyde modified epoxy resin, stir well, then add 1 gram of polyamide curing agent, stir evenly, so that the epoxy The resin coats the surface of the quartz sand particles; however, after cooling, they are crushed and sieved to obtain hydrophobic particles.
Embodiment 2
[0074] Select 200 grams of 300-mesh quartz sand particles, heat to 400 ° C, add 14 grams of polyamide resin modified epoxy resin, stir well, and add alicyclic amine to form a silicone resin coating on the surface of the quartz sand particles, and then cool , crushing, and sieving to obtain hydrophobic particles.
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