Environmental-friendly flame-retardant sound insulating material as well as preparation method and application thereof
A sound insulation material and an environmentally friendly technology, applied in the field of polymer-based sound insulation materials and their preparation, can solve the problems that the sound insulation material does not have flame retardant properties, the prohibited and restricted ophthalmic substances exceed the standard, and the human body is harmed, so as to improve the VOC volatilization, The effect of excellent environmental protection performance and strong ability to eat powder
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[0032] Example 1:
[0033] An environmentally friendly flame-retardant sound-insulating material, in terms of mass percentage, comprising the following components: 18 parts of propylene-based elastomer, 5 parts of linear low-density polyethylene, 2 parts of random copolymer polypropylene, 35 parts of heavy fillers, flame retardant 40 parts, 2 parts auxiliary. Among them, the heavy filler is barium sulfate, and the flame retardant is magnesium hydroxide; the auxiliary agent includes the following components in mass percentage: 0.5 part of rubber oil, 1 part of stearic acid, and 0.5 part of silane coupling agent.
[0034] The preparation method of the environmentally-friendly flame-retardant sound insulation material includes the following steps:
[0035] (1) Put the components into the internal mixer in proportion to initially melt and mix at 150-170°C, and then add the initially melted and mixed melt to the twin-screw extruder through a cone double feeder for further melting and mix...
Example Embodiment
[0038] Example 2:
[0039] An environmentally friendly flame-retardant sound-insulating material, based on mass percentage, comprising the following components: 12 parts of propylene-based elastomer, 10 parts of linear low-density polyethylene, 3 parts of block copolymer polypropylene, 45 parts of heavy fillers, and flame retardant 30 parts, 3 parts auxiliary. Among them, the heavy filler is iron powder, the flame retardant is ammonium polyphosphate; the auxiliary agent includes the following components in mass percentage: 1 part of rubber oil, 1 part of stearic acid, and 1 part of silane coupling agent.
[0040] The preparation method of the environmentally-friendly flame-retardant sound insulation material includes the following steps:
[0041] (1) Put the components into the internal mixer in proportion to initially melt and mix at 150-170°C, and then add the initially melted and mixed melt to the twin-screw extruder through a cone double feeder for further melting and mixing; am...
Example Embodiment
[0044] Example 3:
[0045] An environmentally friendly flame-retardant sound-insulating material, in terms of mass percentage, comprising the following components: 20 parts of propylene-based elastomer, 4 parts of linear low-density polyethylene, 2 parts of random copolymer polypropylene, 39 parts of heavy filler, and flame retardant 35 parts, 2.5 parts of additives. Among them, the heavy filler is calcium carbonate, and the flame retardant is aluminum hypophosphite; the auxiliary agent includes the following components in mass percentage: 1 part of rubber oil, 1 part of stearic acid, and 0.5 part of silane coupling agent.
[0046] The preparation method of the environmentally-friendly flame-retardant sound insulation material includes the following steps:
[0047] (1) Put the components into the internal mixer in proportion to initially melt and mix at 150-170°C, and then add the initially melted and mixed melt to the twin-screw extruder through a cone double feeder for further mel...
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