Preparation method of nanometer flame-retardant plastic
A nano flame retardant and plastic technology, which is applied in the field of preparation of nano flame retardant plastics, can solve problems such as it is difficult to ensure the fixing conditions of plastic films, and achieve the effects of saving materials, reducing environmental pollution and improving temperature resistance.
Active Publication Date: 2014-01-08
SUZHOU XIANGYUAN SPEICAL FINE CHEM
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Problems solved by technology
[0004] In addition, the degradation of this degradable plastic film requires certain fixed conditions, and the environment after the plastic film is discarded is either placed in a closed garbage disposal system or exposed to a natural environment with unstable conditions. The fixed conditions required for the degradation of this plastic film, these degradable plastics in most cases, whether in the garbage disposal system or in the natural environment, cannot be degraded well due to limited conditions
In the prior art, there is no degradable plastic film that can guarantee degradation in the environment after disposal
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0029] A preparation method of nano flame-retardant plastics, characterized in that it comprises the following steps:
[0030] Firstly, raw material treatment: use recycled plastic as raw material, sort and break into flake materials, wash and dry, control the moisture content of the material at 1%-4%, and then send the material to the pellet machine for pelletizing , aggregate the material into granular shape, the diameter of the particle is between 0.3-2cm, and the bulk density of the material reaches 600-1000kg / m3 to complete the raw material treatment;
[0031] Feed, put the recycled waste plastics, heavy calcium carbonate, and organic solvent into the plastic granulator, and the organic solution and the recycled waste plastics are catalyzed and stirred thoroughly to make them evenly mixed to obtain composite materials;
[0032] The composite material is input into the screw electric melting machine for heating and further mixing, and the composite material that becomes th...
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Abstract
The invention relates to a preparation method of a nanometer flame-retardant plastic. The preparation method of the nanometer flame-retardant plastic is characterized by comprising the following steps: feeding: placing recycled waste plastic, heavy calcium carbonate and an organic solvent into a plastic granulator, performing catalytic reaction on the organic solution and the recycled waste plastic, and completely stirring to mix uniformly to obtain a composite material; conveying the composite material into a screw type electric smelting machine, heating, further mixing, and spirally propelling the composite material, which is heated to be thick, to an outlet by using a screw; taking down the thick composite material from the outlet, conveying the thick composite material into a steel die of a working platform of an oil press or a hydraulic press and forcibly pressing; extruding: operating an extrusion device on the plastic granulator and extruding the softened recycled waste plastic to obtain a regenerated plastic; and granulating: operating a granulating device on the plastic granulator and cutting the extruded regenerated plastic into granules.
Description
technical field [0001] The invention relates to a method for preparing plastics, in particular to a method for preparing nano flame-retardant plastics. Background technique [0002] As we all know, the plastic bag made of plastic film is light, thin, impermeable, strong, and low in cost. It is a good packaging material. The amount of bags is increasing, and the waste plastic bags after use are not easy to recycle and degrade. A large number of waste plastic bags have become a serious problem that pollutes the environment. In order to reduce the pollution of plastic films to the environment, people have developed some environmentally friendly green degradable plastic films, such as: patent number: 200710144500.2, paper-like degradable plastic film and its manufacturing process; and patent number: 201110051187.4, which can be completely biodegradable A method for plastic resins and film-like products thereof. This type of degradable plastic film is composed of film-grade pla...
Claims
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IPC IPC(8): B29B9/06B29B17/00C08L101/00C08K13/06C08K9/04C08K3/26C08K3/32C08K3/02C08K3/34C08K3/22
CPCY02W30/62
Inventor 周建颜玉荣
Owner SUZHOU XIANGYUAN SPEICAL FINE CHEM