Recovery and shaping process of poly propylene phonol formaldehyde resin, polyurethane composite waste material
A technology of phenolic resin and molding process, which is applied in the direction of plastic recycling, recycling technology, reagents, etc., can solve the problems of waste of available resources, secondary pollution, etc., and achieve the effects of preventing secondary pollution, protecting the environment, and reducing production costs
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Embodiment 1
[0015] Because thermoplastics and solid plastics have repeatable processability, strong recyclability, and are not easy to cause secondary pollution, so in the embodiment of the present invention, the composite waste materials of polypropylene, phenolic resin, and polyurethane are respectively taken as : 17% by weight, the three kinds of composite wastes are pulverized or punched into 1mm flakes in the form of fillers and added to the mixing heater, and then add thermoplastic material pure polypropylene 42% by weight, and the coupling agent is silane coupling agent KH -550, the chemical name is: -glycidyl ether oxypropyltrimethoxysilane: 10% by weight, ethylene bisstearyl EBS lubricating aid: 8% by weight, uniformly mixed as a mixture; then the above The mixing heating container is heated, the heating temperature is: 190°C, and the temperature is kept for 9 minutes until the mixture enters a molten state (viscous fluid state). First, 6% by weight of glass fiber cloth is placed ...
Embodiment 2
[0018] In the embodiment of the present invention, the punching edge polypropylene, phenolic resin, and polyurethane composite waste of automobile interior parts are respectively: 15% by weight, and the length of the punching edge of the polypropylene composite waste is 2 mm in sheet shape and added to the mixing heater in the form of filler. In, then add pure polypropylene 37.5% by weight, get silane coupling agent KH-550: 11% by weight, ethylene bisstearyl EBS lubricating aid: 6.5% by weight and uniformly mix as a mixture; then the above-mentioned The mixing heating container is heated, the heating temperature is: 200°C, and the temperature is kept for 9.5 minutes until the mixture enters a molten state (viscous fluid state). First, put 5.5% by weight of glass fiber cloth in the mold, and then move the molten mixture into the mold Molding is carried out, and the material transfer time is controlled at 60s. Before material transfer, use methyl silicone oil release agent to ev...
Embodiment 3
[0020] In the embodiment of the present invention, the punching edge polypropylene, phenolic resin, and polyurethane composite waste of automobile interior parts are respectively: 13% by weight, and the polypropylene composite waste is pulverized into particles with a diameter of 3 mm and added to the mixed heater in the form of filler. Then add 33% by weight of pure polypropylene, 12% by weight of silane coupling agent KH-550 and 5% by weight of ethylene bisstearyl EBS lubricating aid in the mixer, and uniformly mix to form a mixture; Then the above mixture is heated, the heating temperature is: 210 ℃, heat preservation for 10min until the mixture enters the molten state, first put 5% by weight of glass fiber cloth in the mold, and then move the molten mixture into the mold for pressurization, The material shifting time is controlled at 70s. Before material transfer, use methyl silicone oil release agent to evenly distribute in the mold. The molten mixture is held in the mol...
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