TWI570164B - Method of making environmentally friendly electronic board by recycling plastic waste - Google Patents

Description

Method for making environmentally friendly electronic sheets by recycling plastic waste

The invention relates to a method for recycling waste, in particular to a method for producing electronic sheets by using waste to process water, high strength, acid and alkali resistant and lightweight materials using recycled waste.

In the use of electronic boards, the common ones are nothing more than printed circuit boards (PCBs) or CNC applications, such as electric boards and phenolic pads (urea boards), etc., but the strength of these electronic boards Although it is high, it is structurally heavy, and its acid and alkali resistance and water repellency are slightly insufficient. In addition, the characteristics of the material itself make it impossible to recycle and remanufacture, so it is not environmentally friendly.

In order to solve the above problem of electronic boards, the applicant used the “Recycling Wastes” applied for by the World Intellectual Property Organization (WIPO) on November 28, 2014 under the PCT (Patent Cooperation Treaty). The production of electronic boards is carried out by the prior art of the production of environmentally friendly materials (PCT/CN2014/092495), but is limited by the required strength, weight, acid and alkali resistance and water repellency of electronic boards. The boards, slats, fittings or plates of general construction, furniture or stationery are different, so that electronic boards made by this prior art do not meet the requirements.

It can be seen that there are still many shortcomings in the above-mentioned methods of use, which is not a good design, but needs to be improved.

In view of the shortcomings derived from the above-mentioned conventional methods, the inventor of the present invention has improved and innovated, and after years of painstaking research, he finally succeeded in researching and developing the method for making electronic sheets using recycled waste.

In order to solve the above problems of the prior art, it is an object of the present invention to provide a method for producing an electronic sheet using recycled waste by manufacturing a recyclable electronic board.

In order to solve the above problems of the prior art, another object of the present invention is to provide a method for producing an electronic sheet using recycled waste with high strength and light weight, and having high acid and alkali resistance and high water resistance.

In order to achieve the above object, the present invention utilizes a method for producing electronic sheets by recycling waste, and is mainly a plastic material of recycled polypropylene (PP), polyethylene terephthalate (PET) or a mixture thereof. The bottle, product or material is pulverized to form granules of 1~10mm, and then mixed with the waste pulverized waste rice husk, and then heated, melted and kneaded at a temperature of 180~250 °C, and cooled and solidified. After the knot, the pellets are pulverized to form the molded shell particles, and then the molded shell pellets are used as the material, and are injection molded at a temperature of 180 to 250 ° C by an injection molding machine, or 180 by using an extrusion molding machine or an extrusion molding machine. The temperature of ~250 ° C is extruded or extruded to perform the molding operation of the electronic sheet.

Wherein, the recycled and crushed waste rice husk has a particle size of between 10 and 325 mesh.

The plastic bottle, product or material of the recycled waste polypropylene (PP), polyethylene terephthalate (PET) or a mixture thereof: the recycled weight percentage of the crushed waste rice husk is 35% ~65%: 65%~35%, and the weight percentage is 35%~65%: 65%~35% of the upper limit is 100% of any real ratio.

The plastic bottle, product or material of the above-mentioned recycled waste polypropylene (PP), polyethylene terephthalate (PET) or a mixture thereof and the waste crushed waste rice hull may be added with other powders or powders. Calcium carbonate powder: The same amount of additives are heated, melted, kneaded and kneaded, and other weight percentages such as powder or calcium carbonate powder added are collected from recycled polypropylene (PP) and polyparaphenyl. The weight percentage of either or both of the plastic bottle, product or material of the polyethylene terephthalate (PET) or a mixture thereof and the recovered crushed waste rice hull is deducted.

Adding 1% to 15% of the plastic bottle, product or material of the recycled waste polypropylene (PP), polyethylene terephthalate (PET) or a mixture thereof and the recycled and crushed waste rice husk Any real weight percentage of the asphalt additive is subjected to heat-melting, kneading and kneading, and the added asphalt weight percentage is a plastic material of recycled waste polypropylene (PP), polyethylene terephthalate (PET) or a mixture thereof. Deducted from the weight percentage of either or both of the PET bottles, products or materials and recycled crushed waste rice husks.

Adding 1% to 15% of the plastic bottle, product or material of the recycled waste polypropylene (PP), polyethylene terephthalate (PET) or a mixture thereof and the recycled and crushed waste rice husk Any real weight percentage of bitumen and other micro-additives such as tantalum powder or calcium carbonate powder, etc., heated, melt-kneaded and kneaded, and the weight percentage of added bitumen and other trace additives such as tantalum powder or calcium carbonate powder A plastic PET bottle, product or material recovered from recycled waste polypropylene (PP), polyethylene terephthalate (PET) or a mixture thereof, and recycled or crushed waste rice husk Deducted from the weight percentage.

S01~S05‧‧‧ Process steps

S031~S033‧‧‧heat melt-kneading mixing process steps

S11~S15‧‧‧ Process steps

1 is a flow chart of a method for producing an electronic sheet by using recycled waste according to the present invention; FIG. 2 is a flow chart of the heat-melt-kneading and kneading of the present invention; and FIG. 3 is a flow chart of a method according to another embodiment of the present invention.

The present invention will be further described below with reference to the accompanying drawings: Referring to Figure 1, the present invention uses a method for producing electronic sheets by recycling waste, mainly for recycling waste polypropylene (PP) and polyethylene terephthalate (PET). The plastic bottle, product or material of the mixture material is pulverized and processed into pellets of 1~10mm particle recovery waste (S01), and the waste rice husk is crushed and processed to control the particle size between 10 and 325 mesh ( S02), next, a plastic PET bottle, product or material of waste polypropylene (PP), polyethylene terephthalate (PET) or a mixture thereof, and pulverized waste rice husk 60 %: 40% by weight is subjected to heat-melt kneading and kneading (S03), and then the semi-finished product formed by kneading and smelting is coarsely crushed and finely divided to form a molded shell (S04), and finally, an injection molding machine, extrusion or extrusion is used. The molding machine melts the molded shell particles at a temperature of 180 to 250 ° C and injects them into a mold to form an electronic sheet (S05).

Referring to FIG. 2, in another embodiment of the method for producing an electronic board by using recycled waste, the heating, melt-kneading and kneading step is to recycle the recycled waste polypropylene (PP) and polyethylene terephthalate. A plastic bottle, product or material of a glycol ester (PET) or a mixture thereof is heated and smelted to a viscous state (S031) at a temperature of 180 to 250 ° C, and then the pulverized rice husk is added and smelted into a viscous shape. After the pulverized processed waste polypropylene (PP), polyethylene terephthalate (PET) or plastic bottle, product or material (S032), heat-melting and kneading (S033) To form a semi-finished product and to carry out coarse crushing and fine crushing to form a plastic shell particle.

Please refer to FIG. 3 , which is another embodiment of the present invention, which is mainly a plastic PET bottle and a product of recycled polypropylene (PP), polyethylene terephthalate (PET) or a mixture thereof. Or the material is pulverized and processed into pellets of 1~10mm particle recovery waste (S11), and the waste rice husk is crushed and processed to control the particle size between 10 and 325 mesh (S12), and then the waste processed by the crushing process is discarded. Polypropylene (PP), polyethylene terephthalate (PET) or a mixture of plastic bottles, products or materials, and crushed waste rice husks and asphalt 50%: 40%: 10% The weight percentage is subjected to heat-melting kneading and kneading (S13), and then the semi-finished product formed by kneading and smelting is coarsely crushed and finely divided to form a molded shell (S14), and finally molded by an injection molding machine, extrusion or extrusion molding machine. The pellet is melted at a temperature of 180 to 250 ° C and injected into a mold to form an electronic sheet (S15).

The method for producing an electronic sheet by using the recycled waste according to the present invention is a plastic PET bottle and a product made of the waste polypropylene (PP), polyethylene terephthalate (PET) or a mixture thereof by heating and smelting. Or the material is combined with the recycled crushed waste rice husk and calcium carbonate. Compared with the conventional electronic plate, in addition to the overall structural strength of the finished product, the formed electronic plate can be remelted and reprocessed. The electronic sheet produced by the method has the advantages of recycling, recycling and light weight, and has the functions of waterproof, moistureproof and acid and alkali resistance.

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

S01~S05‧‧‧ Process steps

Claims (9)

A method for producing environmentally-friendly electronic sheets by recycling plastic waste, the steps comprising: a. recycling waste polypropylene (PP) plastic bottles, products or materials and crushed waste rice hulls, according to 35% to 65%: 65%~35% by weight of the mixture is heated and melted and kneaded to form a recycled plastic bottle, product or material and rice husk mixture; b. The discarded plastic bottle, product or material and rice husk mixture will be recovered. After being coarsely or finely divided, the molded shell particles are formed; and c. The molded shell particles are melt-injected into a mold, extruded or extruded into an electronic sheet by an injection molding machine or an extrusion or extrusion molding machine. The method for preparing an environmentally-friendly electronic board by using recycled plastic waste according to claim 1, wherein the recycled plastic bottle, product or material may also be polyethylene terephthalate (PET) material or polypropylene. A mixture of (PP) and polyethylene terephthalate (PET). The method for preparing an environmentally-friendly electronic sheet by using recycled plastic waste according to claim 1, wherein the recycled plastic bottle, product or material is pulverized to form granules of 1 to 10 mm, and then with rice husk and calcium carbonate powder. Heating, melt-kneading and kneading are carried out. The method for preparing an environmentally-friendly electronic sheet by using recycled plastic waste according to claim 1, wherein the crushed waste rice husk has a particle size of 25 to 300 mesh. The method for preparing an environmentally-friendly electronic sheet by using recycled plastic waste according to claim 1, wherein the temperature of the melt-kneading and the injection molding machine or the extrusion or extrusion molding machine melt-inject the molded shell into the mold, press or extrude The forming temperature is between 180 and 250 °C. The method for preparing an environmentally-friendly electronic sheet by recycling plastic waste according to claim 1, wherein the recycled plastic bottle, product or material: the weight percentage of the recovered crushed rice husk is 35% to 65%: 65% ~35% of the upper limit is 100% of any real ratio. The method for producing environmentally-friendly electronic boards by using recycled plastic waste according to claim 1, wherein the recycled plastic bottles, products or materials and the waste and crushed waste rice hulls may be added with 1% to 15% of any real number. a percentage by weight of the asphalt additive for heating, melt-kneading, and the weight percentage of the added asphalt is the weight percentage of either or both of the recycled plastic PET bottles, products or materials and the recovered crushed waste rice husks. Deducted. The method for producing environmentally-friendly electronic boards by using recycled plastic waste according to claim 1, wherein the recycled plastic bottles, products or materials and the waste and crushed waste rice hulls may be added with 1% to 15% of any real number. Weight percent of bitumen and a small amount of tantalum powder or calcium carbonate powder additive for heat-melting, kneading and kneading, and the added weight of bitumen and a small amount of barium powder, calcium carbonate powder or other additives is recovered from discarded plastic treasure The weight percentage of either or both of the special bottle, product or material and the recovered crushed waste rice hull is deducted. The method for producing environmentally-friendly electronic boards by using recycled plastic waste according to claim 1, wherein the recycled plastic bottles, products or materials and the recycled and crushed waste rice husks may also be added with a small amount of powder or calcium carbonate powder. For the purpose of heating, melt-kneading and kneading, and adding a small amount of powder or calcium carbonate powder or other additives by weight, by recycling waste plastic bottles, products or materials and recycling crushed waste rice husks Or one of the weight percentages is deducted.