阅读说明：本技术 矿物聚酯膜复合建材板材及其制备方法 (Mineral polyester film composite building material plate and preparation method thereof ) 是由 邹达伟 于 2019-11-06 设计创作，主要内容包括：本发明提供了一种矿物聚酯膜复合建材板材,由包括如下重量份的原料制备得到：氧化镁30-60份,氯化镁溶液50-75份,粉煤灰10-35份,木粉1-10份,稻壳5-15份,硅粉1-5份,玻璃纤维网格布1-10份,磷酸0.5-1份,柠檬酸0.5-1.5份,聚酯膜1-8份。本发所述的矿物聚酯膜复合建材板材及其制备方法,通过设定用料,使得建材具有不燃、导热系数低和高效隔热效果。(The invention provides a mineral polyester film composite building material plate which is prepared from the following raw materials in parts by weight: 30-60 parts of magnesium oxide, 50-75 parts of magnesium chloride solution, 10-35 parts of fly ash, 1-10 parts of wood powder, 5-15 parts of rice hull, 1-5 parts of silicon powder, 1-10 parts of glass fiber mesh cloth, 0.5-1 part of phosphoric acid, 0.5-1.5 parts of citric acid and 1-8 parts of polyester film. According to the mineral polyester film composite building material plate and the preparation method thereof, materials are set, so that the building material has the effects of non-combustibility, low thermal conductivity and high-efficiency heat insulation.)

1. A mineral polyester film composite building material plate is characterized in that: the compound is prepared from the following raw materials in parts by weight:

2. the mineral polyester film composite building board of claim 1, wherein: the compound is prepared from the following raw materials in parts by weight:

3. the mineral polyester film composite building board of claim 1 or 2, wherein: the standard magnesium content of the magnesium oxide is 80-86%, the activity is 63-65%, the caustic soda content is 6-8%, and the powder fineness is 200 meshes.

4. The mineral polyester film composite building board of claim 1 or 2, wherein: the concentration of the magnesium chloride solution is 24-29 baume degrees.

5. The mineral polyester film composite building board of claim 1 or 2, wherein: the wood flour is sieved by a 1.5-3 mm-hole sieve, and the rice hulls are sieved by a 1.5-3 mm-hole sieve.

6. The mineral polyester film composite building board of claim 1 or 2, wherein: the thickness of the polyester film is 0.3-2 mm.

7. A process for the production of a mineral polyester film composite building board according to any one of claims 1 to 6, wherein: the method comprises the following steps:

(1) adding magnesium oxide into the magnesium chloride solution and stirring;

(2) continuously adding the fly ash, the rice hulls and the wood powder into the mixture obtained in the step (1), and stirring for 3-5 minutes;

(3) continuously adding phosphoric acid, citric acid and silicon powder into the mixture obtained in the step (2), and uniformly stirring again to obtain a slurry mixture;

(4) laying the mold horizontally, laying a polyester film layer on the bottom of the mold, and pouring the slurry mixture obtained in the step (3) onto the polyester film in the mold to form a slurry layer; then laying a layer of glass fiber mesh cloth on the slurry layer, and then continuously pouring the slurry mixture on the glass fiber mesh cloth, thus forming a layered structure of a layer of fiber mesh cloth and a layer of slurry layer; finally, a polyester film is laid on the slurry layer on the uppermost layer to obtain a plate prototype;

(5) extruding the plate blank obtained in the step (4) through a machine press roller to obtain a formed wet blank plate;

(6) putting the wet blank plate obtained in the step (5) on a maintenance frame vehicle, and conveying the wet blank plate into a maintenance room for maintenance;

(7) taking out the maintained blank plate, cutting off burrs by an edge trimmer, sanding, polishing and cutting.

8. The method of making a mineral polyester film composite building board of claim 7, wherein: the paving thickness of the slurry in the step (4) is 2.5-2.9 mm; 3-6 layers of slurry are paved.

9. The method of making a mineral polyester film composite building board of claim 7, wherein: the curing time of the step (6) is 24 hours, the humidity of the curing room reaches 30-70 ℃, and the temperature is 15-30 ℃.

10. The method of making a mineral polyester film composite building board of claim 7, wherein: and (5) polishing the blank plate in the step (7), standing for 3 days, and then processing and cutting.

Technical Field

The invention belongs to the field of building materials, and particularly relates to a mineral polyester film composite building material plate and a preparation method thereof.

Background

Building materials are a general term for materials used in civil engineering and construction. It can be divided into structural material, decorative material and some special materials. The plate with high strength and good durability is mainly embodied as the material used as the stress member and the structure of the building, such as the material used by beams, plates, frames and the like; the plate material with high strength, good durability, good heat insulation, sound insulation and energy saving performance is mainly embodied in the materials for building envelope structures, such as the materials used in walls, doors and windows, roofs and other parts.

At present, a building mode of using an iron sheet roof and a foaming accessory is popular at home and abroad, but the building material has general heat insulation, cooling, fire prevention and other performances, and a building material with high heat insulation effect and fire prevention needs to be provided to solve the problem.

Disclosure of Invention

In view of the above, the invention aims to provide a mineral polyester film composite building material plate and a preparation method thereof, and the building material provided by the invention is proved to have the effects of non-combustibility, low thermal conductivity and high-efficiency heat insulation through numerous tests by setting materials and carrying out comparative analysis.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the mineral polyester film composite building material plate is prepared from the following raw materials in parts by weight:

further, the feed additive is prepared from the following raw materials in parts by weight:

further, the standard magnesium content of the magnesium oxide reaches 80-86%, the activity reaches 63-65%, the caustic soda content reaches 6-8%, and the powder fineness is 200 meshes.

Further, the concentration of the magnesium chloride solution is 24-29 baume degrees.

Further, the wood flour is sieved by a sieve with 1.5-3 mm holes, and the rice hulls are sieved by a sieve with 1.5-3 mm holes.

Further, the thickness of the polyester film is 0.3 to 2 mm.

The invention also provides a preparation method of the mineral polyester film composite building material plate, which comprises the following steps:

(1) adding magnesium oxide into the magnesium chloride solution and stirring;

(2) continuously adding the fly ash, the rice hulls and the wood powder into the mixture obtained in the step (1), and stirring for 3-5 minutes;

(3) continuously adding phosphoric acid, citric acid and silicon powder into the mixture obtained in the step (2), and uniformly stirring again to obtain a slurry mixture;

(4) laying the mold horizontally, laying a polyester film layer on the bottom of the mold, and pouring the slurry mixture obtained in the step (3) onto the polyester film in the mold to form a slurry layer; then laying a layer of glass fiber mesh cloth on the slurry layer, and then continuously pouring the slurry mixture on the glass fiber mesh cloth, thus forming a layered structure of a layer of fiber mesh cloth and a layer of slurry layer; finally, a polyester film is laid on the slurry layer on the uppermost layer to obtain a plate prototype;

(5) extruding the plate blank obtained in the step (4) through a machine press roller to obtain a formed wet blank plate;

(6) putting the wet blank plate obtained in the step (5) on a maintenance frame vehicle, and conveying the wet blank plate into a maintenance room for maintenance;

(7) taking out the maintained blank plate, cutting off burrs by an edge trimmer, sanding, polishing and cutting.

Further, the paving thickness of the slurry in the step (4) is 2.5-2.9 mm; 3-6 layers of slurry are paved.

Further, the curing time in the step (6) is 24 hours, the humidity of the curing chamber reaches 30-70 ℃, and the temperature is 15-30 ℃.

Further, the blank plate obtained in the step (7) is polished, placed for 3 days and then processed and cut.

Compared with the prior art, the mineral polyester film composite building material plate has the following advantages:

(1) the mineral polyester film composite building material plate disclosed by the invention utilizes heat energy generated by mineral synthesis in the slurry production process, and the polyester films are adhered to the surface and the bottom of the base material, so that the mineral polyester film composite building material plate can be directly adhered to the base material without using an adhesive, and the toxin risk caused by using a chemical adhesive is avoided. And the raw material of the board is a non-toxic mineral material synthetic product, so that the board is green and environment-friendly.

(2) The mineral polyester film composite building material plate adopts magnesium oxide, silicon powder, glass fiber mesh cloth and polyester film which are all non-combustible and flame-retardant materials, and the density of the composite building material plate after compounding can reach 1400g/m³And the upper and lower two-layer polyester film of panel can improve thermal-insulated more, reduces coefficient of thermal conductivity. Tests show that the heat insulation effect is good, the indoor and outdoor temperature difference is 5 degrees, and the heat insulation and energy conservation are realized.

(3) The mineral polyester film composite building material plate can be directly produced into a finished product in one step according to required colors and patterns, and does not need secondary processing except cutting and finishing; and the use of paint is reduced and the labor is saved.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail with reference to examples.