A kind of multi-component solid waste environmental protection base material and preparation method thereof
A base material and environmentally friendly technology, applied in the field of building materials, can solve problems such as short life, high formaldehyde content, and health hazards
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[0051] The present invention also provides a method for preparing the above-mentioned multi-component solid waste environmental protection base material, comprising: S1) firstly adding a binder, a modified mixture, a stabilizer, an internal lubricant, an external lubricant, a toughening agent and a reinforcing agent Carry out hot mixing, and then carry out cold mixing to obtain a base material premix; S2) heating, blending and extruding the base material premix to obtain a multi-component solid waste environmental protection base material.
[0052] Wherein, the amounts and types of the binder, modified mixture, stabilizer, internal lubricant, external lubricant, toughening agent and reinforcing agent are the same as those described above, and will not be repeated here.
[0053] In the present invention, the modified mixture is preferably prepared according to the following method: the solid waste is mixed with the modifier to obtain the modified mixture; the mixing is preferabl...
Embodiment 1
[0062] Pretreatment: pulverize and grind the construction waste (50% waste concrete blocks and 50% waste concrete); grind and dry the crystal slag; then separate the construction waste, fly ash and crystal slag for particle size, preferably granular For powder with diameter D90<80 μm, place the powder in an electric heating blast drying oven at 120° C. to dry until the moisture content is less than 3.0% to obtain dry powder to be surface-activated.
[0063] Mix the treated 30 parts of construction waste slag, 60 parts of fly ash, and 10 parts of crystal slag powder at a stirring speed of 950 r / min, add 0.5% stearic acid (SA) at 95°C, heat and stir for 10 minutes, and then add 1 %PE wax (model: H100) was reacted for 30 minutes, and the powder particles were surface-coated to obtain an activated modified mixture that could be directly filled in plastics.
[0064] Add 100 parts of polyvinyl chloride (type 5 PVC), 250 parts of modified mixture, 5 parts of calcium zinc stabilizer, ...
Embodiment 2
[0066] Pre-treatment: pulverize and grind the construction waste (50% waste concrete blocks and 50% waste concrete); grind and dry the crystal slag; then separate the construction waste, fly ash and crystal slag by particle size For powder with diameter D90<80 μm, place the powder in an electric heating blast drying oven at 120° C. to dry until the moisture content is less than 3.0% to obtain dry powder to be surface-activated.
[0067] Mix the treated 30 parts of construction waste slag, 55 parts of fly ash, and 15 parts of crystal slag powder at a stirring speed of 950 r / min, add 0.5% stearic acid (SA), heat and stir at 95°C for 10 min, and then add 1 %PE wax (model: H100) was reacted for 30 minutes, and the powder particles were surface-coated to obtain an activated modified mixture that could be directly filled in plastics.
[0068] Add 100 parts of polyvinyl chloride (type 5 PVC), 250 parts of modified mixture, 5 parts of calcium zinc stabilizer, 0.8 part of stearic acid ...
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Abstract
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