Continuous fiber reinforced coal ash filled PVC (Polyvinyl Chloride) micro-foamed plate and preparation method thereof
A technology of continuous fiber and fly ash, applied in the field of preparation of green high-strength building materials, can solve the problems of low physical and mechanical properties, achieve the effect of improving interface bonding force, improving bearing capacity and impact resistance, and improving physical and mechanical properties
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Embodiment 1
[0028] A preparation method of continuous fiber reinforced fly ash filled PVC micro-foaming board:
[0029] Step (1): First put the PVC resin powder in the electric field, and deposit it on the fiber surface by electrostatic adsorption; send it into the hot channel for heating through continuous traction to melt the resin powder; then pass through multiple guide rollers from the heating channel to melt the resin The resin is fully saturated with the PVC continuous fiber tape, and then cooled to obtain a pre-impregnated PVC continuous fiber tape with a diameter of 3 mm and a fiber content of 40%, and rolled up;
[0030] Step (2): evenly arrange the 4 pre-impregnated PVC continuous fiber tapes in the co-extrusion die, and tension them under the action of the tension roller and the traction roller;
[0031] Step (3): fly ash fills the PVC micro-foaming matrix material by weight: 100 parts of PVC, 100 parts of fly ash, 2.5 parts of heat stabilizer, 0.5 parts of foaming agent, 5 pa...
Embodiment 2
[0035] Step (1): First put the PVC resin powder in the electric field, and deposit it on the fiber surface by electrostatic adsorption; send it into the hot channel for heating through continuous traction to melt the resin powder; then pass through multiple guide rollers from the heating channel to melt the resin The resin is fully saturated with the PVC continuous fiber tape, and then cooled to obtain a pre-impregnated PVC continuous fiber tape with a diameter of 4 mm and a fiber content of 50%, and rolled up;
[0036] Step (2): Evenly arrange 8 pre-impregnated PVC continuous fiber tapes in the co-extrusion die, and tension them under the action of tension rollers and traction rollers;
[0037] Step (3): The fly ash is filled with PVC micro-foaming matrix material by weight: 100 parts of PVC, 150 parts of fly ash with a particle size of 150 μm, 2.5 parts of heat stabilizer, 0.5 parts of foaming agent, and 5 parts of foaming regulator , 4 parts of toughening agent, 0.3 parts o...
Embodiment 3
[0041]According to step (1): first put the PVC resin powder in the electric field, and deposit on the fiber surface by electrostatic adsorption; continuously pull it into the hot channel for heating to melt the resin powder; then pass through multiple guide rollers from the heating channel to melt the resin powder The resin is fully saturated with the PVC continuous fiber tape, and then cooled to obtain a pre-impregnated PVC continuous fiber tape with a diameter of 3.5 mm and a fiber content of 45%, which is wound up;
[0042] Step (2): uniformly arrange 6 pre-impregnated PVC continuous fiber strips in the co-extrusion die, and tension them under the action of tension rollers and traction rollers;
[0043] Step (3): the fly ash fills the PVC micro-foaming matrix material by weight into 100 parts of PVC, 100 parts of fly ash, 2.5 parts of heat stabilizer, 0.8 parts of foaming agent, 5 parts of foaming regulator, and 4 parts of toughening agent parts, 0.3 parts of internal lubri...
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