KR200418007Y1 - High Strength Panel of Lightweight and Manufacturing Method thereof - Google Patents

Abstract

The present invention is a form in which a plate-shaped reinforcing fiber mat layer prepared by thermocompressing discarded cotton fiber snow and chemical fiber snow and a mixed resin layer made by mixing a thermoplastic resin and a filler are laminated by thermal compression without using any adhesive. The present invention relates to a plate, and to a plate that can be used in a variety of civil engineering, construction sites, such as a balcony, interior materials, as well as formwork.

The formwork material of the present invention is a cotton fiber snow, chemical fiber snow and the filler is mixed and then opened with other cotton wool to obtain a form of cotton, heat-pressed by a hot pressing machine to prepare a plate-like reinforced fiber mat; A glass fiber layer laminated on both sides of the reinforcing fiber mat layer; It is composed of; mixed resin layer consisting of 60 to 80% by weight, 10 to 40% by weight filler, 0.1 to 30% by weight of the processing aid laminated on each side of the glass fiber layer.

Formwork, polypropylene, wood flour, cotton fiber, chemical fiber, metal frame

Description

High strength panel of light weight and manufacturing method thereof

1 is a cross-sectional view showing an embodiment of the formwork plate according to the present invention.

Figure 2 is a cross-sectional view showing another embodiment of the formwork plate according to the present invention.

Figure 3 is a cross-sectional view showing an example of the formwork plate laminated metal frame layer.

Figure 4 is a simplified diagram showing the manufacturing process of the metal frame layer used in the present invention.

5 is a perspective view showing a lamination form of a formwork member in which a metal frame layer is laminated.

Figure 6 is a perspective view showing a formwork plate part of the metal frame layer impregnated in the mixed resin layer.

FIG. 7 is a perspective view showing a die plate material in which the metal frame layer is completely impregnated with the mixed resin layer. FIG.

8 is a state diagram used in the formwork plate according to the present invention.

9 is a state diagram used in the formwork plate according to the present invention.

10 is a state diagram used in the formwork plate according to the present invention.

11 is a state diagram used in the formwork plate according to the present invention.

12 is a state diagram used in the formwork plate according to the present invention.

Figure 13 is a state diagram showing an example of the formwork plate according to the present invention.

Detailed description of the drawings

10: reinforcing fiber mat layer 20: glass fiber layer

30: mixed resin layer 40: metal frame layer

50: coupling groove 60: reinforcing rib

70: finishing member

100, 200, 300, 400: formwork

The present invention relates to a formwork material which is integrated by laminating reinforcing fiber mat layer using cotton fiber snow and chemical fiber snow and mixed resin layer using thermoplastic resin. The present invention relates to a plate that can be used in various forms such as formwork, balcony, interior materials, construction sites, automobiles, and flooring materials.

In general, the formwork for concrete placing is formed by assembling a plurality of plates in a specific shape in order to pour a concrete structure in a certain shape, squeeze the plate frame in the shape to be made by pouring concrete, and then stiffen the concrete and remove the mold. The mold of the die is.

In general, when the concrete formwork plate is made of plywood, since it is in direct contact with concrete containing strong alkaline components, the strong alkaline component and water eluted from cement during use for the formwork penetrate into the surface end plate of the plywood, thereby expanding the wood part. And it causes deterioration and discards after using 2 to 3 times because it weakened the adhesive force of each adhesive layer.

In addition, when manufactured with a conventional synthetic resin, the water resistance and durability is superior to wood plywood, but the shape is easily bent or broken by heat generated when concrete is poured. The heavy weight was not easy to move and was expensive.

The present invention was devised to solve the problems as described above, by using a hard plate-like reinforced fiber mat layer manufactured by mixing, heating and pressing cotton fiber snow, chemical fiber snow and filler to have insulation and thermal insulation performance It prevents the shape of the plate from being deformed by the heat generated during concrete pouring, and is cheaper than using wood, synthetic resin, and metal using waste fiber, and is easy to move due to its light weight and easy movement. To provide that purpose.

In addition, the present invention is to provide a plate having a surface that is easy to peel off from the concrete surface after reinforcing the strength by using the glass fiber layer and the mixed resin layer as an outer shell, and after removing the plate because of its beautiful appearance, Its purpose is to provide formwork that does not require finishing.

In addition, the object of the present invention is to provide a plate that can be used in various forms, such as civil engineering, construction sites and automobiles, flooring materials, such as balconies, interior materials.

In addition, the present invention is to provide a method of manufacturing a formwork plate that does not use an adhesive at all, and to provide an environment-friendly formwork plate material does not use an adhesive.

In addition, an object of the present invention is to provide a method of manufacturing a metal frame layer and a method of manufacturing a formwork plate to be integrated using a press.

The present invention relates to a plate that can be used in various forms, such as formwork, balcony, interior materials, construction sites, automobiles, flooring materials, etc. It is light and easy to move, and can be manufactured at low cost. When used as a formwork, it is easy to peel off with concrete and can be used for a long time without damage to the surface. It is about plate.

When described in more detail with reference to the drawings, the present invention is a cotton fiber snow, chemical fiber snow and filler is mixed and then opened with a cotton noodle machine, obtained in the form of a cotton, reinforced fiber mat layer produced in a plate shape by hot pressing with a hot press 10; A glass fiber layer 20 laminated on both sides of the reinforcing fiber mat layer 10; A mixed resin layer 30 composed of 60 to 80 wt% of a thermoplastic resin, 10 to 40 wt% of a filler, and 0.1 to 30 wt% of a processing aid stacked on one side of the glass fiber layer 20; It relates to a heat shield and formwork having excellent strength.

Another aspect of the present invention is to further include a glass fiber layer 20 between the reinforcing fiber mat layer 10. As shown in FIG. 2, when the glass fiber layer 20 is further laminated between the reinforcing fiber mat layers 10, the strength of the plate may be further reinforced.

As another embodiment of the present invention, as shown in Figure 3, the metal frame layer 40 on one surface of the mixed resin layer 30; is further provided. In the present invention, the metal frame layer 40 is used to prevent bending and breakage of the plate by impregnating the metal mesh of the mesh structure, and serves to reinforce the strength, as shown in FIG. It is laminated on one surface of the mixed resin layer 30 and compressed, and as shown in FIG. 6, only a part of the mixed resin layer 30 is impregnated to protrude out of the surface or as shown in FIG. 7. It may be manufactured to be impregnated with the resin layer 30.

The opposite surface where the metal frame layer 40 is not used is used as a concrete pouring site. As shown in FIG. 4, the metal frame layer 40 is spaced apart from the left and right ends of the iron plate by a predetermined distance, and is made to have a mesh shape by stretching the left and right sides at a predetermined interval with respect to the longitudinal direction. After the production, as shown in Figure 5, the formwork plate 100 cut to the same size as the stretched portion is laminated on the bottom and heat-pressed by a press, as shown in Figure 6, both ends not extended to the press To bend upward. In addition, as shown in Figure 13, after stacking the metal frame layer 40 of the same size as the die plate material 100, the mixed resin layer of the die plate material 100 to the unstretched portion of the metal frame layer 40 It is also possible to make it impregnate to 30, and to bend upward.

The formwork plate according to the present invention has sufficient strength even by using only the metal frame layer 40, but may be used in various forms, examples of which are illustrated in FIGS. 8 to 12. Shown in As shown in Figures 8 to 12, the formwork produced in accordance with the present invention is further provided with a coupling groove 50, reinforcing ribs 60 and the finishing member 70 can be used as a formwork of euro-form formwork, The coupling groove 50, the reinforcing rib 60 and the finishing member 70 is not limited to the drawings of the present invention because it can be practiced by those skilled in the art. That is, it is included in the scope of the present invention to manufacture by applying the formwork material produced according to the present invention. The finishing member 70 may be a non-woven fabric, iron plate, wood plywood and the like, but is not limited thereto.

When explaining step by step how to manufacture the formwork of the present invention,

1) 60 to 80% by weight of thermoplastic resin, 10 to 40% by weight of filler, 0.1 to 30% by weight of processing aid is mixed and extruded into an extruder to prepare a plate-shaped mixed resin layer, one side of the prepared mixed resin layer Compressing the glass fiber layer on the substrate;

2) mixing cotton fiber snow, chemical fiber snow and a filler, and then open it with a cotton wool machine to obtain a form of cotton, and heat compressing with a hot press to produce a plate-like reinforcing fiber mat layer;

3) laminating the glass fiber layer on both sides of the reinforcing fiber mat layer so as to face the reinforcing fiber mat layer and the mixed resin layer to be an outer layer, and then heat-compressing and integrating it;

4) cutting;

Has

In addition, the present invention may be manufactured by further stacking the metal frame layer 40 on any one surface of the mixed resin layer 30 in the third step as necessary.

In addition, in the step 2), further stacking the glass fiber layer 20 between the reinforcing fiber mat layer 10 and hot pressing by a high temperature press; it is also possible to further add.

Referring to the method for producing the formwork plate of the present invention in detail as follows.

The mixed resin layer 30 forming the surface of the formwork of the present invention is a mixture of 60 to 80% by weight, filler 10 to 40% by weight, 0.1 to 30% by weight of the processing aid by melt extrusion using an extruder to form a plate To manufacture.

The thermoplastic resin is preferably any one selected from polyethylene, polypropylene, copolymers of polyethylene and polypropylene, polyester, and more preferably, polypropylene having excellent water resistance and easy releasability with concrete. It is better to use a recycled resin.

The filler is preferably one or more selected from wood flour, rice hull, crushed paper, ground hemp, sawdust, but is not limited thereto, and the use of ingredients containing vegetable cellulose has properties similar to that of plywood. desirable. The filler is not particularly limited in the amount used, but it is preferable to use the 10 to 40% by weight, the surface is not smooth when it exceeds 40% by weight, the effect is less when used in less than 10% by weight.

The processing aid may be any one or more selected from stone powder, inorganic fillers such as calcium carbonate (CaCO ₃ ), carbon black, pigments selected from organic and inorganic pigments or antioxidants, UV stabilizers, which is optional if necessary. It is used as an antioxidant or UV stabilizer to prevent the polymer resin from aging or oxidation by sunlight to improve the physical properties of the resin. In the case of using 0.1 to 30% by weight, since the physical properties of the resin are not modified, it is most preferable.

The method of manufacturing the mixed resin layer 30 is pelletized or finely crushed thermoplastic resin is mixed with a filler, a processing aid and then extruded by melt extrusion into an extruder to have a plate-like form. The said melting temperature changes with resin to process, and it is preferable to use it according to the melting temperature of resin to be used.

At this time, if the residual heat of the plate-shaped mixed resin layer 30 extruded is completely compressed before the mixed resin layer 30 using a roller using a roller, the mixed resin layer 30 and the glass fiber layer without using an adhesive 20 is integrated and perfectly bonded.

The glass fiber layer 20 in the present invention is used to reinforce the strength of the formwork plate of the present invention, it gives strength as well as the effect of heat insulation. The glass fiber constituting the glass fiber layer 20 is preferably used because it is easy to be integrated by being impregnated into the mixed resin layer using a mesh structure of the mesh.

In the present invention, the reinforcing fiber mat layer 10 is a cotton fiber, chemical fiber and vegetable cellulose components of the filler is mixed with the other cotton is obtained in the form of cotton, hot pressing by a hot press to produce a mat form As the cotton fiber and chemical fiber snow, it means the crushed and mixed with the fibers generated during the cutting, the chemical fiber snow is any one or more selected from acrylic fiber, nylon fiber, polyester fiber, polypropylene fiber Chemical fibers can be used.

In the present invention, the chemical fiber and cotton fiber, and the stem, ground grinding, coconut shell, wood flour filler of at least one selected from the cellulose component is mixed and opened in a cotton ball to prepare a cotton form, and then through a roller After reducing the volume, it is laminated in several layers according to the thickness to be used and heat-pressed by a high temperature and high pressure press. The amount of the cotton fiber, chemical fiber and filler is not limited, and may be adjusted and used as necessary.

At this time, there is a method of opening and mixing cotton fiber, chemical fiber and filler at the same time, and the method of opening the cotton fiber and chemical fiber, respectively, any method may be used, if each is used to open the chemical Laminating in the order of fiber snow / cotton fiber snow / chemical island snow snow / cotton fiber snow / chemical fiber snow and stacking the chemical fiber snow outwards is preferable because the surface is smooth when manufactured in the form of plate by hot pressing using a hot press.

At this time, in order to laminate the glass fiber layer 20 between the reinforcing fiber mat layer 10, as shown in Figure 3 between the chemical fiber and cotton fiber when manufacturing the reinforcing fiber mat layer 10 as described above The glass fiber layer 20 may be laminated, that is, laminated in the order of chemical fiber snow / cotton fiber snow / glass fiber layer 20 / cotton fiber snow / chemical fiber snow, and may be heat-compressed, or heat-compressed to produce a plate. The glass fiber layer 20 is laminated between the reinforcing fiber mat layer 10, that is, the lamination of the reinforcing fiber mat layer 10 / glass fiber layer 20 / reinforcing fiber mat layer 10 in order It can manufacture by heat pressing. Thus, when the glass fiber layer 20 is further laminated between the reinforcing fiber mat layer 10, the strength is further reinforced.

At this time, the heat crimping conditions for manufacturing the plate-like reinforcing fiber mat layer 10 using a press of 500 ~ 3000 kgf / ㎠ at 100 ~ 300 ℃, to the inside by further using a steam of 150 ~ 200 ℃ as necessary It is desirable to transfer heat so that the resin used for chemical fiber snow is melted and integrated with cotton fiber snow. In the case of heating and compressing by pressing with steam as described above, the resin component of the chemical fiber snow is melted, and the volume is reduced while being integrated with cotton fiber snow and the filler, and a hard plate-like mat is manufactured.

The present invention has the effect that the heat transfer is blocked when using the reinforcing fiber mat layer 10 made of a rigid plate as the center of the formwork, it is used several times by heat generated during concrete casting In this case, the shape of the plate can be prevented from being deformed, and the same strength as that of using wood or plastic is shown, but the weight is lighter than these, and the manufacturing cost is found to be low, thereby completing the present invention.

According to the present invention, the mixed resin layer 30 and the glass fiber layer 20 are manufactured to be integrated in advance, and then the mixed resin layer 30 is laminated on both sides of the manufactured reinforcing fiber mat layer 10, respectively. It is manufactured by integrating using a press machine of high temperature and high pressure. At this time, the press is used in the same manner as used when manufacturing the reinforcing fiber mat layer 10, using a press of 500 ~ 3000 kgf / ㎠ at 100 ~ 300 ℃, steam of 150 ~ 200 ℃ as needed It is preferable to further melt the resin of the reinforcing fiber mat layer 10 located inside to bond with the resin of the mixed resin layer 30. The present invention can be produced environmentally friendly plate material because the resin component of the chemical fiber used in the reinforcing fiber mat layer 10 and the resin component of the mixed resin layer 30 are melted by heat and firmly bonded without using an adhesive. have.

After the integration into a high temperature and high pressure as described above to cool at room temperature, or to maintain the strength by cooling using a cold press (cold press).

In the present invention, the metal frame layer 40 may be used to use the formwork of the present invention for formwork, and reinforces strength at the same time as the support band. As shown in FIG. 4, the metal frame layer 40 is spaced apart from the left and right ends of the iron plate by a predetermined distance, and is manufactured to be formed in a mesh form by lengthening the sheath in a longitudinal direction at a predetermined interval with respect to the longitudinal direction. In this case, since it is advantageous to be partially or fully impregnated with the mixed resin layer 30, it is preferable to use a metal frame having a flat plate shape on one side thereof as well as irregularities (凹, 凸). The shape of the metal frame layer 40 in the present invention is not limited to the form shown in Figure 4 can be changed.

In the present invention, when the metal frame layer 40 is used, the mixed resin layer 30 and the glass fiber layer 20 are manufactured to be integrated beforehand, and then, respectively, on both sides of the manufactured reinforcing fiber mat layer 10. The mixed resin layer 30 is laminated so as to be an outer layer, and as shown in FIG. 5, the metal frame layer 40 cuts the die plate material cut to the same size as a portion having a mesh network form in the metal frame layer 40. Laminated in the lower portion of the press and heat-pressed by a press, the end is not stretched is produced by being bent upward by the press.

Alternatively, as shown in FIG. 13, the metal frame layer 40 and the formwork plate 100 have the same size and are pressed and bonded together, and then the unstretched portion is bent upwardly together with the formwork plate 100. It can be manufactured by pressing with a press or the like.

In this case, the thickness of the mixed resin layer 30 is changed according to the thickness of the metal frame layer 40 used, so that the thickness of the mixed resin layer 30 is at least twice the thickness of the metal frame layer 40. It is preferable. In addition, the metal frame layer 40 is to be partially impregnated (shown in FIG. 6) or the whole of the mixed resin layer 30 (see FIG. 7). However, as shown in FIG. 6, only part of the impregnation is preferable since the strength is excellent.

In the present invention, the thickness of each layer is not limited because it can be used according to the user desired use.

When explaining an example of the formwork plate according to the present invention with reference to the drawings.

1 is laminated from the top in the order of the mixed resin layer 30 / glass fiber layer 20 / reinforced fiber mat layer 10 / glass fiber layer 20 / mixed resin layer 30 in the civil engineering, such as balcony, interior materials, An example of the formwork plate 100 that can be used in a variety of construction sites and automobiles, flooring materials, etc., Figure 2 is a mixed resin layer 30 / glass fiber layer 20 / reinforced fiber mat layer 10 / from the top It shows a formwork plate 200 further reinforced with strength by being laminated in the order of the glass fiber layer 20 / reinforced fiber mat layer 10 / glass fiber layer 20 / mixed resin layer 30. 3 is stacked in the order of the mixed resin layer 30 / glass fiber layer 20 / reinforced fiber mat layer 10 / glass fiber layer 20 / mixed resin layer 30 / metal frame layer 40 from the top It is an illustration showing an example of the formwork plate 300 is reinforced with strength, it shows that the metal frame layer 40 is only partially impregnated in the mixed resin layer (30). At this time, the metal frame layer 40 in the present invention can be used both in the formwork shown in Figures 1 and 2, the Figure 3 is the metal frame layer 40 is laminated to the formwork shown in Figure 1 The cross section is shown.

4 is a view briefly showing the steps for manufacturing the metal frame layer 40 of the present invention, Figure 5 is a die plate 100 shown in Figure 1 the metal frame layer 10 manufactured as shown in FIG. Fig. 1 shows the lamination procedure for laminating to a lamination). As shown, the formwork sheet material cut to the same size as the portion of the mesh net form is laminated on the lower portion of the metal frame layer 40 and heated and pressed by a press.

FIG. 6 is a view showing only a part of the metal frame layer 40 being impregnated on one surface of the mixed resin layer 30, and shows that both ends of the metal frame layer 40 are bent upward.

FIG. 7 is a view showing that the metal frame layer 40 is completely impregnated on one surface of the mixed resin layer 30, and both ends of the metal frame layer 40 are bent upward.

8 is a view showing a state of use of the formwork plate according to the present invention, it shows an example that can be used to further provide a coupling groove (50). In the present invention, the structure of the coupling groove 50 is not limited, and is not particularly limited as long as it is intended to be used as a formwork plate.

Figure 9 shows the use state of the formwork plate according to the present invention, it shows an example that can be used to further provide a coupling groove 50, reinforcing rib 60 and the finishing member 70. In this case, the shape of the reinforcing rib 60 is not limited thereto, and the finishing member may use a nonwoven fabric, an iron plate, a wood plywood, or the like.

10 is a view showing a state of use of the formwork plate according to the present invention, as shown, it is also possible to further use only the reinforcing rib 60 without the finishing member, the shape of the reinforcing rib is not limited.

11 is a view showing a state of use of the formwork plate according to the present invention, it shows an example that can be used to further provide a coupling groove 50, reinforcing rib 60 and the finishing member 70. If the reinforcing rib 60 is used in addition to further reinforcement, the strength is not limited to the form shown in the drawings can be used in various modifications, which is to be included in the scope of the present invention It is self-evident.

12 is a view showing a state of use of the formwork plate according to the present invention, having a coupling groove 50, the reinforcing rib 60 and the finishing member 70, showing an example of the number of reinforcing ribs six.

13 is the same as the size of the metal frame layer 40 and the formwork plate 100 in the manufacture of the formwork plate according to the present invention, after pressing and bonding, the portion not stretched upward with the formwork plate 100 It shows an example of the formwork plate produced by pressing with a bending press to be bent to. At this time, the bent portion of the metal frame layer 40 may be completely impregnated with the mixed resin layer 30 of the formwork plate 100.

Formwork plate according to the present invention has a feature that can be used semi-permanently for a long time compared to the existing formwork plate.

Formwork plate according to the present invention is to prevent the deformation of the shape of the plate by using a rigid plate-like reinforced fiber mat layer to have insulation and thermal barrier performance, and compared to using wood, synthetic resin and metal using waste fibers It is possible to provide a formwork plate, characterized in that the price is low, and the weight is easy to move.

In addition, the present invention uses a glass fiber layer and a mixed resin layer as an outer shell to reinforce the strength, and to provide a plate having a surface that is easy to peel off from the concrete surface after concrete placement. Plates can be provided that do not require a separate finish.

The present invention can provide a plate that can be used in various forms, such as civil engineering, construction sites and automobiles, flooring materials, such as balconies, interior materials.

Claims (6)

Reinforcing fiber mat layer prepared by mixing cotton fiber snow, chemical fiber snow and filler and then opening it with a cotton wool machine to obtain a form of cotton, and heat-pressing it with a hot press machine to form a plate; A glass fiber layer laminated on both sides of the reinforcing fiber mat layer; A mixed resin layer composed of 60 to 80 wt% of thermoplastic resin, 10 to 40 wt% of filler, and 0.1 to 30 wt% of a processing aid stacked on one side of the glass fiber layer; Light weight, high strength formwork composed of. The method of claim 1, Light weight, high strength formwork plate further comprises; a metal frame layer on one surface of the mixed resin layer. The method of claim 2, The metal frame layer is light weight, high strength formwork member, characterized in that all or part of the mixed resin layer is impregnated. The method according to claim 1 or 2, Light weight, high strength formwork plate further comprises a glass fiber layer between the reinforcing fiber mat layer. The method of claim 1, The reinforcing fiber mat layer is any one or more of natural cellulose selected from acrylic fiber, nylon fiber, polyester fiber, polypropylene fiber and cotton fiber snow and cotton fiber snow, stems, ground hemp, coconut shell, wood flour Lightweight, high strength formwork plate material, characterized in that the filler is mixed with heat and pressed at 500 ~ 3000 kgf / ㎠ at 100 ~ 300 ℃ after opening. The method of claim 1, The thermoplastic resin in the mixed resin layer is any one or more selected from polyethylene, polypropylene, copolymers of polyethylene and polypropylene, polyester, and the filler is any one selected from wood flour, chaff, crushed paper, ground hemp and sawdust. As described above, the processing aid is stone powder, calcium carbonate (CaCO ₃ ), carbon black, pigment selected from organic pigments, inorganic pigments or antioxidants, UV stabilizers, lightweight, high strength formwork, characterized in that any one or more.

Images