KR20030022426A - Manufacturing methods of a artificial-light-panel composed waste-kraft-papers and PP-gunny Bags - Google Patents

Abstract

PURPOSE: Provided is a production process of an artificial lightweight board comprising waste graft paper·PP laminated bag which recycles waste graft paper·PP laminated bag and waste PP bag, which is commonly reclaimed and burned after use with contaminating ground and air badly so that it contributes to preserve environment. CONSTITUTION: The production process of the artificial lightweight board comprising waste graft paper·PP laminated bag comprises the steps of: (i) crushing waste graft paper·PP laminated paper and waste PP bag at 1:2 ratio to prepare a basic material; (ii) mixing paper sludge and adhesive and blending them in a kneading machine to prepare a first raw material; (iii) dehydrating in a dehydrator to adjust the amount of water for preparing a second raw material; (iv) heating, fusing, mixing, extruding, cooling and cutting the second raw material in a compound machine to discharge water through a vent for preparing a third raw material; (v) adding a blowing agent and incombustibles to liquid epoxy resin to raise uniformity in mixing and melt index for the third material; and (vi) adding 7wt% of the third raw material to liquid epoxy resin, cooling the mixture in a cooling machine, cooling and solidifying polypropylene resin to cut in a cutter for producing the final product which consists of 27wt% of waste graft paper·PP laminated bag, 53wt% of waste PP bag, 13wt% of paper sludge, 7wt% of liquid material and others.

Description

Manufacturing method and composition of artificial light weight plate composed of waste kraft paper and pipijijiji

The present invention is a solid wood composed of waste kraft paper, leather piling rod and waste coating rod, which is discarded after several uses, and natural wood having excellent flexural strength, nailing resistance, breaking strength, machinability and heat resistance, and lightweight artificial light weight plate which can be used alternatively. It relates to a manufacturing method of.

The waste kraft paper and pipi chopsticks stand used as the main raw material in the present invention is a packing stand that is generally used for moisture-proof packing and transportation of water support materials.

Kraft paper, PPI paper board is made by laminating polypropylene film (PP-film) finely and woven polypropylene film board and kraft paper.The polypropylene film fabric and kraft paper adhere well. It is difficult to recycle only kraft, and it is impossible to recycle only kraft paper because it is difficult to separate kraft paper. Therefore, if the secondary and tertiary prototypes are recycled into the packaging and are damaged and become unusable, they are completely processed by landfilling and incineration, and the recycling that pollutes the air with soot and dioxin from soil pollution and incineration caused by landfilling is developed. Belong to unspoiled domestic waste.

In addition, the waste corrugated cardboard used as a main raw material in the present invention is a packaging table mainly used for transporting agricultural products as a woven sack of polypropylene film. Wasted pipes are not bulky because they are bulky, costly to transport and collect, and reduce working efficiency. Furthermore, when crushed finely, the volume is increased several times, and the economic efficiency is further lost. Recycling is only 20 ^wt %, and about 80 ^wt % is recycled as a packing stand until the second and third damages. The final treatment by incineration contaminates the soil and contaminates the atmosphere with soot and dioxin. At present, it is classified as malignant household waste that pollutes nature with no useful value.

In addition, the paper sludge used in the present invention is a waste generated in the papermaking process as the amount of paper used increases due to the development of human civilization, and the amount of paper sludge is also directly increased. However, the use of paper sludge has never been developed. Currently, the paper sludge is heavily polluted by rivers, lakes, and coasts, and is heavily polluted by landfills. . At present, only a very small amount is used to sow grass seeds.

As described above in the present invention, a large amount of waste kraft paper, pipi jimage belt, waste pipiage and paper sludge, which are classified as domestic waste and workplace waste, which seriously pollutes nature such as soil, air, river, lake, coast, etc. As a result of research and development in the areas that can be done, it is possible to produce wood and artificial light weight plates that can be replaced. Therefore, the above-mentioned waste can be recycled as a main raw material for the production of artificial light weight plates, and the artificial light weight plates are developed to be used repeatedly for the production of artificial light weight plates, thereby eliminating their existence as used waste.

Kraft paper and pipi paper rods, which are made of kraft paper and polypropylene film rods, are swelled in the original form without kraft papers. While rotating in the state of being stuck together with the waste polypropylene hemp which was laminated underwater, it wound up the rotary blades of the pulper machine to make work impossible.

In addition, when trying to melt and extrude using an extruder by another method, the waste pulley propylene resin portion is melted, but the kraft paper stuck together is a vegetable fiber, which is not melted insoluble but remains as a solid fiber. When it is mixed with the melt, the melt index (Melt Index) is severely lowered due to the fluidity of the molten resin is reduced, the melt-extrusion is impossible.

The present invention pulverizes waste kraft paper woven from polypropylene film alone without laminating kraft paper, kraft paper rods and kraft paper to a size of 0.5 to 1.0 cm 2 in a ratio of 1: 2 for the purpose of solving the problems described above. The mixing ratio of waste polypropylene molten resin is higher than that of kraft paper vegetable fiber to increase the melt index in melting and extruding. It was possible to recycle the sack in bulk.

Uniform kneading of waste kraft paper and waste polypropylene resin attached when using waste kraft paper, pipi synthetics and waste pipi is an absolute requirement for the quality of artificial light weight plates. Kraft paper, pipi synthetic velvet and waste corrugated velvety should be crushed into 0.5 ~ 1.0cm2 and mixed uniformly. At this time, the pulverized basic raw materials lose workability due to excessive volume and lose economic efficiency. As a way to solve this problem, paper sludge made of fine fiber powder was used. Paper sludge is viscous when it contains 70-90 ^wt % of water, and it becomes clay material with high hardness when dried. Taking advantage of these properties, the waste kraft paper, pipi synthetic limbs and waste pilasters that are bulky by crushing are added to the kneader at a ratio of 1: 2 and mixed with papermaking sludge at the same time. Paper sludge serves as an intermediate medium that adheres to the ground individual raw materials by exerting adhesive force, and the volume of the basic raw material is reduced to ¼ and the physical strength and heat resistance are improved when the final lightweight product is manufactured. You can get it. When the adhesive aid is added thereto, the effect of reducing the raw material volume and physical strength, water resistance and heat resistance of the product can be further improved.

1: Perspective view of the artificial lightweight plate 1

2 is a production process diagram of the artificial lightweight plate (1)

<Description of the code | symbol about the principal part of drawing>

(1): artificial lightweight plate (2): waste kraft paper

(3): waste bar (4): grinder

(5): papermaking sludge (6): adhesive aid

(7): Kneading machine (8): Dehydrator

(9): Compound machine (10): Fluidity aid

(11): Extrusion machine (12): Cooler

(13): cutting machine

When described in detail with reference to the accompanying drawings as follows.

The present invention is to achieve the object described above ⓐ: waste kraft paper, pipi chopsticks stand (2) and waste coater (3) through a conventional grinder (4) to grind 0.5 ~ 1.0 cm 2 size and waste kraft paper · Pipi-jimaji: A process of producing basic raw materials by mixing the mixing of waste-pima-jima in a ratio of 1: 2. Ⓑ: it is mixed with paper viscous sludge (5) and kneading machine (7) with viscous and clay material containing 70 to 90 ^wt % of moisture The volume of crushed kraft paper, pipi-top mats (2) and waste coats (3) is reduced to ¼, so that the workability can be improved, and at the same time, beating paper (5) is the main component of paper sludge (5). Due to the properties of the finely divided microfibers, it is possible to obtain the effect of improving the hardness, flexural strength, nailing resistance, fracture strength, and heat resistance in the physical properties of the finished lightweight composite board (1). At this time, when phenol resin, urea resin, melamine resin, latex, etc. are mixed as an adhesive aid (6), waste kraft paper and skin coated paper which further improves adhesive strength, physical strength and heat resistance (2) A process for producing a first dimension material consisting of 13 to 21 ^wt % + waste bark (3) 24 to 43 ^wt % + paper sludge (5) 6 to 11 ^wt % + water 25 to 59 ^wt % + other trace amount. Ⓒ: Excessive water mixed in the paper sludge (5) and the adhesive aid (6) as described above will not be able to produce the product due to the risk of explosion and evaporation by vaporization in the next regenerator (9) extrusion process. There is concern. Therefore, the first dimension material should be dewatered through the dehydrator 8 to adjust the proper water content to 20-25 ^wt %. The mixed ratio of the raw material is waste paper, Kraft laminated with skin Sack (2) 21~23 ^wt% + lung Sack Phi (3) 43~46 ^wt% + Paper's reotji (5) 11 ^wt% + Water 20~25 ^wt% + Process of producing second dimension material consisting of other trace amount, ⓓ: When it is heated, melted, mixed, extruded, cooled, and cut to 170-190 ° C through a regenerator (9) equipped with a conventional belt, moisture is released from the vent. It is discharged through the waste kraft paper and pipi synthetics (2) 29 ^wt % + waste pipi (3) 57 ^wt % + paper sludge (5) 14 ^wt % + other small amount fair. Ⓔ: In order to increase the fluidity of the third dimension material in the extruder 11 operation, the fluidity aid 10 used is a resin having a low viscosity, a nonvolatile, syrup-like fluid property, and a foaming agent. When injected into the heated extruder (11) after azobisform amide (Azobisform amide) as a non-flammable agent, antimony trioxide, paraffin chloride, tricre phosphate (TCP), alternatively or uniformly mixed two or more Like 3rd dimension material, melting and mixing become smooth. Therefore, the blowing agent and the nonflammable agent can obtain the most evenly distributed effect in the molten resin. Ⓕ: The fluid aid 10 mixed with the blowing agent and the non-flammable agent is introduced at the same time through the fluid inlet installed at the tip of the extruder 11 while introducing the third dimension material into the extruder 11 heated to 170 to 190 ° C. Since the melt index of the 3D material is increased when it is added, melted, mixed, and extruded, the fluidity of the raw material can be remarkably improved. The fluid aid 10 was a non-volatile, room temperature-curable epoxy resin that used a room temperature-curable polyamide resin with a long visible time as a curing agent. Since the epoxy resin is shortened in the inside of the heated extruder 11 and mixed with the third dimension material and the syrup state without curing, the epoxy resin has an effect of increasing the melt index. Epoxy resin of fluid aid 10, which absorbed heat at 170 to 190 ° C. in extruder 11, was melted and mixed in the third dimension material, mixed with 7 ^wt % of solid content, and extruded to the outside, and cooled in a conventional cooler 12. If the polypropylene resin is cooled and solidified, then cut and settled by the cutter (13), the epoxy resin is fully matured at room temperature, so the waste kraft paper and pipi resin stage (2) 27 ^wt % + waste coat stage (3) 53 ^wt % + Paper sludge (5) 13 ^wt % + Fluid aid (10) 7 ^wt % + Other methods for producing non-combustible artificial light weight plate (1) having excellent bending strength, nailing resistance, fracture strength and heat resistance

※ In the raw material composition ratio, "other trace amount" refers to the amount of adhesive aid (6) and flame retardant added. Calculated at 0 ^wt % to avoid computational complexity.

<Example 1>

※ 1st material manufacturing process

(A): Waste kraft paper, pipi chopsticks stand (2) × grinding ----------------- 300kg

(B): Wasted leather bar (3) × Pulverization --------------------------------- 600kg (6000㎥)

(C): Paper sludge (5) --------------------------- 150kg (750㎥: Water content 80 ^wt %)

When the water content of 70 to 90 ^wt % paper sludge (5) containing a small amount of the adhesive aid (6) was added to the basic raw materials pulverized in (a) and (b) and mixed uniformly through the weathering machine (7), 7650 The basic raw material of m3 is about 1900m3, which is reduced to ¼, and waste kraft paper and pipi synthetics (2) 18.2 ^wt % + wastestrip (3) 36.4 ^wt % + paper sludge (5) 9.1 ^wt % Produces 1650 kg of the first dimension material consisting of + 36.4 ^wt % of moisture + other trace amount.

※ 2nd dimension material production process

1650 kg of the first dimension material is dewatered through the dehydrator 8 within a water content of 20 to 25 ^wt %. The composition of the dehydrated raw material is composed of waste kraft paper and pipi synthetic (2) 22.6 ^wt % + waste pipi (3) 45.2 ^wt % + paper sludge (5) 11.3 ^wt % + water 21.0 ^wt % + other trace amount Produces 1329 kg of two-dimensional material.

※ 3rd Dimensional Material Production Process

The second dimension material is introduced into the regenerator 9 in which the belt is attached, and melted and extruded at 170 to 190 ° C. while discharging all the moisture contained in the second dimension material with a vent and cooling and cutting it. 1050 kg of a 3D material ferret consisting of lap top (2) 28.6 ^wt % + closed bar lap (3) 57.1 ^wt % + paper sludge (5) 14.3 ^wt % + other trace amount is produced.

※ Manufacturing process of artificial lightweight plate (1)

The 3rd material wastelet was put into the extruder 11 heated to 170-190 degreeC, and the fluid support agent 10 epoxy resin which mixed the blowing agent and the non-flammable agent through the inlet installed in the tip of the extruder 11 is 3rd order Melting, blending, extruding, cooling, cutting raw materials at the same time, adding 7 ^wt % of raw material cost, and completely aging at room temperature, waste kraft paper, pipi vellum (2) 27 ^wt % + vellum (3) 53 ^wt % + Paper sludge (5) 13 ^wt % + Fluid aid (10) 7 ^wt % + Others It is possible to substitute with natural wood which consists of trace amount, as shown in <Table 1>. Produces about 1100kg of artificial tender board (1), which is light and tough, with excellent ductility, cutting ability and heat resistance.

<Table 1>

Quality Comparison between Artificial Inclined Timber (1) and Natural Wood

In the present invention, as described above, the waste kraft paper and pipi paper support stand (2) is composed of kraft paper and a polypropylene resin film, which is difficult to separate, so that the kraft paper is used in paper making for dissociation in water. When dissociating waste polypropylene film, dissociation work is impossible due to the strong adhesion of waste polypropylene film. In the case of resin, waste polypropylene resin is recycled. At present, the landfill and incineration are finally treated as natural wastes that contaminate nature.

In addition, waste skin casters (3) are bulky wastes per unit, so they are not economical due to excessive collection and transportation costs and reduced work efficiency. They are polluted by landfilling and incineration at the end of their life after repeated use. It is a malignant household waste.

In addition, paper sludge (5) is a site waste that emits severe odors in case of severe pollution and decay of soil, rivers, lakes, and shores by landfill and discharge with no use for recycling at present. ^wt %) is occurring, the damage is also enormous.

As mentioned above, the field where large quantities of waste kraft paper, pipi synthetics (2), waste pipi (3), and paper sludge (5) can be used is replaced by natural wood in Korea. Developing an item that can be used is considered as the top priority to design and develop artificial lightweight plate (1).

The development of artificial lightweight boards (1) protects and preserves the dying soil from landfilling of wastes, and revitalizes the natural flora and fauna by keeping the atmosphere polluted by soot and dioxin clean and clean so that human beings grow healthy. To keep your health. In addition, the alternative use of natural wood is a good way to protect nature that can protect, cultivate and green forests that are devastated by logging. Since the artificial light weight plate (1) of the present invention can be recycled in the production of repeated artificial light weight plate (1), the effect of contributing to the development of the waste recycling industry while preventing pollution of nature and protecting human health through the recycling of waste resources will be great. It is considered to be.

Claims (4)

Next, the manufacturing method of the artificial lightweight plate material (1) characterized by the following process. Ⓐ: A process of crushing waste kraft paper, synthetic leather, etc. (2) and waste leather, (3) and mixing in a ratio of 1: 2 to make a basic raw material. Ⓑ: When a small amount of the adhesive aid (6) is mixed into the paper sludge (5) having a water content of 70-90 ^wt % and mixed through the weathering machine (7), the volume of the basic raw material is reduced to ¼ waste kraft paper Sack lamination (2) 13~21 ^wt% + lung Sack Phi (3) 24~43 ^wt% + Paper's reotji (5) 6~11 ^wt% + water 25~59 ^wt% + other first raw material consisting of a trace amount of production process. Ⓒ: if the control it via the conventional dehydrator (8) so that the work proper water content 20~25 ^wt% dehydrated waste kraft, with skin laminating Sack (2), 21~23 ^wt% + lung Sack Phi (3) 43~46 ^wt Production process for the second dimension consisting of% + paper sludge (5) 11 ^wt % + water 20-25 ^wt % + other trace amount. Ⓓ: When it is heated, melted, mixed, extruded, cooled, or cut to 170 to 190 ° C. through a regenerator (9) in which a conventional vent is placed, water is discharged through the vent and waste kraft paper, pipijiji (2) 29 Production process of ferret type 3D material consisting of ^wt % + waste bar (3) 57 ^wt % + paper sludge (5) 14 ^wt % + other traces. Ⓔ: In order to increase the fluidity of the third dimension material in the extruder 11 operation, the fluidity aid (10) having a low viscosity, non-volatile, room temperature curing, heat resistance, and syrup-like fluid properties. Uniform mixing is easy, and the melt index (MI) of the 3D material is increased, and the blowing agent and the non-flammable agent are the most effective distribution in the molten raw material. Ⓕ: Epoxy resin of fluid aid (10) that absorbed heat from 170 to 190 ° C. in extruder 11 was mixed with 3 ^wt % solids content of 7 ^wt %, melted and blended, and extruded to the outside. When cooled, the polypropylene resin is cooled and solidified, and when it is settled by the cutting machine (13), the fluid aid (10) The epoxy resin is made of room temperature aged kraft paper and pipi resin (2) 27 ^wt % + waste castor (3) ) 53 ^wt % + paper sludge (5) 13 ^wt % + fluid aid (10) 7 ^wt % + other non-combustible artificial light weight plate (1) with excellent bending strength, nailing resistance, breaking strength, machinability and heat resistance Manufacturing method. The third order according to claim 1, wherein in order to increase the melt index (MI) of the third-dimensional material in the extruder 11, a non-volatile, room temperature-curable, low viscosity syrup-like epoxy resin mixed with a blowing agent and a non-flammable agent is used. A method for producing an artificial lightweight plate (1), in which a melt index (MI) of a raw material is high and melting and blending are performed smoothly, so that an effect of uniform distribution of a blowing agent and a nonflammable agent can be obtained. The method for producing an artificial light weight plate (1) according to claim 2, wherein the fluidity aid (11) for increasing the fluidity of the third dimension material in the extruder (11) is manufactured using a room temperature hardening epoxy resin. Waste kraft paper / pigmented synthetic limb (2) 27 ^wt % + waste leather coated rod (3) 53 ^wt % + paper sludge (5) 13 ^wt % + fluid aid (10) 7 ^wt % + others Artificial lightweight plate (1) consisting of a small amount.