CN215882895U - Composite material plate for underground granary - Google Patents

Abstract

The utility model discloses a composite material plate for an underground granary, which comprises an isolation layer, an upper waterproof layer, a reinforcing layer, a lower waterproof layer and a bonding layer which are sequentially overlapped; the upper waterproof layer is a functional resin film added with a functional auxiliary agent, the reinforcing layer is a continuous fiber reinforced thermoplastic composite prepreg sheet, and the lower waterproof layer is respectively attached to the bonding layer and the reinforcing layer. The utility model is a multilayer structure waterproof coiled material, which is formed by combining a continuous fiber reinforced thermoplastic composite material with various functional materials, the whole material is completely selected from food safety materials, the FDA standard is met, the product is safe and environment-friendly, and the construction is safe and pollution-free; the utility model endows the functions of water resistance, antibiosis, mildew resistance, wear resistance and the like through the design of the functionality of the waterproof layer; the hot-melting welding splicing part can be welded by metal welding rods to form a reinforced welding seam, the sealing performance is strong, and the connection is reliable.

Description

Composite material plate for underground granary

Technical Field

The utility model relates to the technical field of composite boards, in particular to a composite board for an underground granary.

Background

Currently, with the development of technology, more and more waterproofing materials are emerging, usually in combination with reinforced concrete in a self-adhesive form or in a glue-finished form, to form a waterproof silo wall.

Publication No. CN 101696603B discloses an underground granary surrounded by semi-cylinders, the inner wall of which is a layer of steel plate with the thickness more than or equal to 2mm, and the concrete granary wall and the steel plate are connected by steel members to form a granary wall with a combined structure. The steel plate and the cast-in-place concrete are combined, the steel plate serves as a template of the side wall, construction cost of the bin wall is saved, overall construction speed is increased, rigidity and strength of the bin wall are improved, development of the underground granary to a larger and deeper direction is facilitated, application range of the bin type is enlarged, and transport and construction are difficult due to large steel density. By welding the abutted seams, the waterproof and moistureproof problems of the underground granary can be solved, but the requirement of steel on the underground environment is high, and the problems of rusting and corrosion still exist after long-term use.

The publication No. CN 1233909C discloses a waterproof roll material with a multilayer composite structure and a construction method thereof, wherein the waterproof roll material consists of an isolation layer, a lower waterproof glue layer, a reinforcing layer, an upper waterproof material and a bonding layer, a granular layer is arranged on the top surface of the bonding layer, and the isolation layer is isolation paper or an isolation film; the reinforced layer is a polyester base, a polypropylene base or a glass fiber base; the lower waterproof material layer is a self-adhesive rubber asphalt material layer; the upper waterproof sizing material layer is a high-molecular polymer modified asphalt sizing material layer or a self-adhesive rubber asphalt sizing material layer. In the construction method of the waterproof coiled material by the pre-paving method and the wet-paving method, the pre-paving method can avoid the need of paving a protective layer by a traditional constructor, and the wet-paving method can avoid the need of a basic leveling procedure in the traditional construction.

In addition, some underground granary projects adopt waterproof structural adhesive, low-water-absorption plastic plates such as polypropylene plastic plates or PVC crystal plates and the like are bonded with base layer concrete, waterproof adhesive can form a waterproof coating, and the plastic plates can be attached to the surface of the concrete to form a waterproof granary wall, so that the functions of heat insulation, corrosion prevention, mildew prevention and seepage prevention are achieved. But the size of the plastic plate product is basically fixed, the thickness is 2-30mm, the conventional specification is 1300mm multiplied by 2000mm, and the construction is difficult. And the adjacent plates have splicing seams, the splicing seams need to be welded, the resistance to water pressure at the welding points is poor, and the water seepage risk is high.

In view of the particularity of the underground granary, the requirements of easy construction, health and environmental protection are met except for the use performances such as necessary mechanical property, chemical corrosion resistance, low water absorption rate and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a composite material plate for an underground granary, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the composite material plate for the underground granary comprises an isolation layer, an upper waterproof layer, a reinforcing layer, a lower waterproof layer and a bonding layer which are sequentially overlapped; the upper waterproof layer is a functional resin film added with a functional auxiliary agent, the reinforcing layer is a continuous fiber reinforced thermoplastic composite prepreg sheet, and the lower waterproof layer is respectively attached to the bonding layer and the reinforcing layer; the isolation layer is an isolation film and is made of PET resin.

As a further scheme of the utility model: the functional resin film consists of the following components A, B and C in parts by weight:

the component A comprises the following components in parts by weight: nano titanium dioxide: 10-15 parts; 70-85 parts of polypropylene; 5-10 parts of polyethylene; 1-5 parts of silicone master batch; 0.1-0.3 part of light stabilizer; 0.1-0.2 part of primary antioxidant; 0.1-0.2 part of auxiliary antioxidant;

the component B comprises the following components in parts by weight: 90-95 parts of polypropylene; 3-5 parts of an inorganic silver ion antibacterial agent; 0.5-1 part of primary antioxidant; 0.5-1 part of auxiliary antioxidant; the component C comprises the following components in parts by weight: 90-95 parts of polypropylene; 3-5 parts of OBPA mildew preventive, 0.5-1 part of primary antioxidant and 0.5-1 part of auxiliary antioxidant;

the component C comprises the following components in parts by weight: 90-95 parts of polypropylene, 3-5 parts of an OBPA mildew inhibitor, and a main antioxidant: 0.5-1 part of auxiliary antioxidant: 0.5-1 part.

As a further scheme of the utility model: the lower waterproof layer is made of polyolefin resin, and the thickness of the upper waterproof layer is the same as that of the lower waterproof layer.

As a further scheme of the utility model: the continuous fiber reinforced composite material prepreg sheet is a fiber reinforced thermoplastic composite material prepreg sheet prepared from continuous fiber yarns by a melt impregnation method, and is formed by fully impregnating and processing the reinforcing fibers with molten matrix resin.

As a further scheme of the utility model: the reinforced fiber is glass fiber, and the matrix resin is composed of polyolefin resin and an auxiliary agent.

As a further scheme of the utility model: the bonding layer is 60-150g/m²PET resin two-way cross spunlace nonwoven fabric.

Compared with the prior art, the utility model has the beneficial effects that:

1) the utility model is a multilayer structure waterproof coiled material, which is formed by combining a continuous fiber reinforced thermoplastic composite material with various functional materials, the whole material is completely selected from food safety materials, the FDA standard is met, the product is safe and environment-friendly, and the construction is safe and pollution-free;

2) the utility model endows the functions of water resistance, antibiosis, mildew resistance, wear resistance and the like through the design of the functionality of the waterproof layer;

3) the built-in metal welding rod, hot melt welding, splice department form reinforcing welding seam, the leakproofness is strong, connects reliably.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the construction of the composite board of the present invention.

Wherein: the waterproof layer comprises an isolation layer 1, an upper waterproof layer 2, a reinforcing layer 3, a lower waterproof layer 4 and a bonding layer 5.

Upper liner 100, lower liner 200, metal mesh/strip 300.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, referring to fig. 1, in the embodiment of the utility model, an underground granary composite material plate comprises an isolation layer 1, an upper waterproof layer 2, a reinforcing layer 3, a lower waterproof layer 4 and a bonding layer 5 which are sequentially stacked, wherein the isolation layer 1 is an isolation film made of PET resin and plays a role in preventing dirt and protecting the upper waterproof layer, and can be removed after construction is completed;

the upper waterproof layer 2 is a functional resin film, the main resin material is consistent with the resin material of the enhancement layer 3, the resin belongs to polyolefin resin, and the functional auxiliary agent is added to enable the resin to have the functions of antibiosis, mildew resistance, UV resistance, wear resistance, stain resistance, scratch resistance and the like. The functional resin film comprises the following components in parts by weight: the component A comprises a component B and a component C, wherein the component C is 8:1: 1; wherein the component A comprises the following components in parts by weight: nano titanium dioxide: 10 parts (the ratio of rutile titanium dioxide to anatase titanium dioxide is 5: 1); 80 parts of polypropylene; 4.7 parts of polyethylene; 5 parts of silicone master batch (30 parts of effective components such as siloxane, silicon dioxide and the like); 0.1 part of light stabilizer; 1 part of primary antioxidant; 1 part of auxiliary antioxidant;

the component B comprises the following components in parts by weight: 93 parts of polypropylene; 5 parts of an inorganic silver ion antibacterial agent; 1 part of primary antioxidant; 1 part of auxiliary antioxidant;

the component C comprises the following components in parts by weight: 95 parts of polypropylene; 3 parts of an OBPA mildew preventive, 1 part of a primary antioxidant and 1 part of an auxiliary antioxidant, wherein the component A is a photocatalytic antibacterial system, the antibacterial effect of nano titanium dioxide is excited under the near ultraviolet irradiation condition, and the system has the functional performances of antifouling, self-cleaning, scratch resistance, UV resistance and the like besides excellent antibacterial performance; the component B is an inorganic silver ion antibacterial system, and the antibacterial agent can fully and durably exert antibacterial effect through the slow release of silver ions; the component C is an organic antibacterial and mildewproof system which can simultaneously prevent mildew, bacteria, algae and other microorganisms. The thickness of the waterproof layer is 0.1mm-1.0mm, and the water absorption rate is less than 0.01%; has stable and long-acting antibacterial effect; safe and environment-friendly, can pass FDA standard, and meets the requirements of food contact materials.

The reinforcing layer 3 is a continuous fiber reinforced thermoplastic composite material prepreg sheet, the layering structure belongs to symmetrical layering, wherein the sheet with the angle of 0 degree is the length direction of the composite material plate, the layering structure is divided into four symmetrical structural forms of [0/90/90/0] ns, [0/90/90/0/90/0] ns, [0/90/90/0/0/90/90/0] ns and [0/90/0/90/90/0/90/0] ns, wherein n is the unit cycle number, n is an integer larger than or equal to 1, and the size of n depends on the thickness and performance requirements of the product. The number of layers is more than or equal to 4, the thickness is more than or equal to 1.2mm, and the water absorption is less than or equal to 0.05 percent. The continuous fiber reinforced composite material prepreg sheet is a fiber reinforced thermoplastic composite material prepreg sheet prepared from continuous fiber yarns by a melt impregnation method, and is formed by fully impregnating and processing molten matrix resin of reinforcing fibers, wherein the thickness range is 0.1-0.5mm, the reinforcing fibers are glass fibers, the linear density is 1200tex, 2400tex and 4800tex, the content is 40-70%, and the matrix resin is one or a combination of polyolefin resin and additives in any ratio. The auxiliary agent comprises one or more of functional additives such as a compatilizer, an antioxidant, a lubricant, an ultraviolet-resistant stabilizer and the like.

The lower waterproof layer 4 is made of polyolefin resin, the thickness of the lower waterproof layer is 0.1-1.0mm, and the water absorption rate is less than or equal to 0.01%. The thickness of the waterproof layer is consistent with that of the upper waterproof layer 2, and the waterproof layer is firstly attached to the bonding layer 5 and then compounded with the enhancement layer 3 through film coating processing. The lower waterproof layer 4 can effectively prevent seepage and moisture.

The bonding layer 5 is 60-150g/m²PET two-way alternately water thorn non-woven fabrics, combined material board are as the template of underground granary bulkhead, and the concrete is directly pour, and uncured concrete has certain mobility and osmotic force, gets into the fibre of anchor coat inside, forms a novel fibre reinforced cement combined material boundary layer with the fibre after the solidification to need not glue, realized promptly with the effect of concrete basal layer high strength bonding, and save the construction cost of bulkhead, accelerate whole construction speed.

The second embodiment is a composite material plate for an underground granary, which comprises an isolation layer 1, an upper waterproof layer 2, a reinforcing layer 3, a lower waterproof layer 4 and a bonding layer 5 which are sequentially overlapped, wherein the thicknesses of the upper waterproof layer and the lower waterproof layer are both 0.3mm, and the bonding layer is 120g/m < 2 > PET non-woven fabric. The reinforced layer is formed by compounding 20 layers of 0.25mm rear glass fiber reinforced prepreg sheets, the layering mode is [0/90/90/0]4s, and the fiber content is 40 wt%. The waterproof layer resin film comprises the following components in percentage by weight: the component A comprises: and B component: and the component C is 8:1: 1; wherein the component A comprises: the proportion of the nano titanium dioxide is 15 parts, and the proportion of the rutile titanium dioxide to the anatase titanium dioxide is 2: 1; 75 parts of polypropylene, 7.3 parts of polyethylene, silicone master batch: 2 parts (30 parts of effective components such as siloxane and silicon dioxide), light stabilizer: 0.3 part, primary antioxidant: 0.2 part, secondary antioxidant: 0.2 part. And B component: 95 parts of polypropylene, 3 parts of an inorganic silver ion antibacterial agent, and a primary antioxidant: 1 part, auxiliary antioxidant: 1 part. And C, component C: 95 parts of polypropylene, 3 parts of OBPA mildew preventive, and a main antioxidant: 1 part, auxiliary antioxidant: 1 part.

Comparative example 1, a polypropylene plastic panel for an underground barn, having a thickness of 4mm, was prepared according to the following formulation: 95 parts of polypropylene and 5 parts of polyethylene.

Comparative example 2, a combined material board for underground granary, includes isolation layer 1, upper waterproof layer 2, enhancement layer 3, lower waterproof layer 4 and the anchor coat 5 of coincide in proper order, wherein, upper and lower waterproof layer thickness is 0.3mm, and the anchor coat is 120g/m2PET non-woven fabrics. The reinforced layer is formed by compounding 20 layers of glass fiber reinforced prepreg sheets with the thickness of 0.25mm, the layering mode is [0/90/90/0]4s, and the fiber content is 40 weight parts. The waterproof layer resin film comprises the following components in percentage by weight: the component A comprises: and B component: and C component is 5: 1: 1; wherein the component A comprises: the proportion of the nano titanium dioxide is 15 parts, and the proportion of the rutile titanium dioxide to the anatase titanium dioxide is 2: 1; 75 parts of polypropylene, 7.3 parts of polyethylene, silicone master batch: 2 parts (30 parts of effective components such as siloxane and silicon dioxide), light stabilizer: 0.3 part, primary antioxidant: 0.2 part, secondary antioxidant: 0.2 part. And B component: 95 parts of polypropylene, 3 parts of an inorganic silver ion antibacterial agent, and a primary antioxidant: 1 part, auxiliary antioxidant: 1 part. And C, component C: 95 parts of polypropylene, 3 parts of OBPA mildew preventive, and a main antioxidant: 1 part, auxiliary antioxidant: 1 part. The plate samples of the above examples were taken for testing, and the test results are shown in Table 1

TABLE 1

Therefore, the composite board has the advantages of water resistance, antibiosis, mildew resistance, rust resistance and moth prevention, has the characteristics of high strength and small density, is convenient to process, and improves the construction efficiency: the flexible and unlimited length can be cut automatically, and the utility model is suitable for laying in various shapes and cabins; but the hot melt welding realizes the seamless concatenation of integration, effectively prevents the infiltration.

As shown in fig. 2, when the composite material plate is used as an underground granary plate, the construction is carried out by the following steps:

(1) laying a lower layer of composite material plate;

(2) laying a conductive metal net/strip 300 at a position which is more than or equal to 50mm away from the upper edge of the width of the lower composite plate, electrifying and heating the conductive metal net/strip, and embedding 1/3-1/2 parts of the thickness of the conductive metal net/strip into the lower lining plate 200; the conductive metal strip is of a curve type or a broken line type;

(3) laying an upper composite plate, wherein the lap joint width of the upper composite plate and the lower composite plate is more than or equal to 50mm and less than the width of the conductive metal net/strip 300. The metal mesh/strip is energized, heated and pressurized to ensure that the metal mesh/strip 300 is completely embedded inside the upper and lower liner plates. Forming a metal matrix reinforced composite material at the splicing part to ensure the bonding strength;

(4) and the edges of the upper lining plate 100 are welded and sealed by a PP welding rod 400 with the diameter of 2-5mm in a hot melting way.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (3)

1. A composite material plate for an underground granary comprises an isolation layer, an upper waterproof layer, a reinforcing layer, a lower waterproof layer and a bonding layer which are sequentially overlapped; the method is characterized in that: the upper waterproof layer is a functional resin film, the enhancement layer is formed by laminating continuous fiber reinforced thermoplastic composite prepreg sheets, and the lower waterproof layer is respectively attached to the bonding layer and the enhancement layer; the isolation layer is an isolation film and is made of PET resin.

2. The composite material plate for the underground grain bin according to claim 1, wherein: the lower waterproof layer is made of polyolefin resin, and the thickness of the lower waterproof layer is the same as that of the upper waterproof layer.

3. The composite material plate for the underground grain bin according to claim 1, wherein: the bonding layer has a density of 60-150g/m²PET resin two-way cross spunlace nonwoven fabric.

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