TWI557090B - Resin concrete composition and molded articles - Google Patents

Description

Resin concrete composition and molded product

The present invention relates to a resin concrete composition, and more particularly to a resin concrete composition comprising inorganic fillers having different particle size ranges, and a molded article obtained from the resin concrete composition.

The Republic of China Invention Patent Publication No. 388749 provides an artificial stone composition comprising: (1) an inorganic mixture in a total amount of from 90% by weight to 97% by weight of the final product; and (2) a resin or a resin The mixture is present in a total amount of from 3 to 10% by weight of the final product. Wherein, the inorganic mixture is composed of inorganic fine particles of 10 to 70 mesh, and inorganic fine fine particles of 100 mesh or smaller, and the fine particles and very fine particles are in a weight ratio of 0.5:1 to 5:1. mixing. The artificial stone made of the artificial stone composition has the characteristics of dense structure, transparent color tone, color depth, granite, marble or other natural stone, and superior molding, and can be used as wall material, floor board and column material. However, this patent uses a large amount of fine particles and very fine particles, and the smaller the particle size of the particles, the higher the material cost, so that the artificial stone composition of the patent is more expensive to prepare.

In view of the shortcomings of the patent, the cost is too high, in order to promote In the industrial development, there is a need to develop an artificial stone composition which is inexpensive to produce.

Accordingly, a first object of the present invention is to provide a polymer concrete composition which is inexpensive to produce.

The resin concrete composition of the present invention comprises: an inorganic filler component, comprising a first filler, a second filler, and a third filler, wherein the first filler has an average particle diameter ranging from 4 mm to 10 mm, and the second filler The average particle diameter ranges from 0.2 mm to less than 4 mm, the third filler has an average particle diameter ranging from less than 0.2 mm, and the first filler is used in an amount ranging from 35 to 100% by weight based on the total amount of the inorganic filler component. 50% by weight; and an organic bonding component for bonding the inorganic filler component.

Accordingly, a second object of the present invention is to provide a molded article having low porosity, high compressive strength and flexural strength.

Thus, the molded article of the present invention is obtained by curing a resin concrete composition as described above.

The effect of the present invention is to use a first filler having an average particle diameter ranging from 4 mm to 10 mm, a second filler having an average particle diameter ranging from 0.2 mm to less than 4 mm, and a third filler having an average particle diameter ranging from less than 0.2 mm. And the amount of the first filler is in the range of 35 to 50% by weight (based on the total amount of the inorganic filler component of 100% by weight), which can reduce the amount of the small-diameter filler of the resin concrete composition. Thereby, the preparation of the resin concrete composition is inexpensive. Resin concrete composition The molded article obtained has low porosity, high compressive strength and flexural strength.

The details of the present invention will be described below. The inorganic filler component has an average particle diameter ranging from 0.1 to 10 mm. The inorganic filler component includes a first filler having an average particle diameter ranging from 4 mm to 10 mm, a second filler having an average particle diameter ranging from 0.2 mm to less than 4 mm, and a third filler having an average particle diameter ranging from less than 0.2 mm.

The type of the first filler is not particularly limited herein, and any inorganic filler having an average particle diameter ranging from 4 mm to 10 mm is suitable, and the type of the first filler is, for example but not limited to, mineral material, cement concrete, or two. a combination of people. The mineral material is, for example but not limited to: natural ore, clay, ceramic material, glass, etc.; more specific examples of the mineral material are: sedimentary rock (granite, marble, etc.), metamorphic rock, cerium oxide, and the like. The cement concrete refers to concrete made of cement as a binder. The first filler is used in an amount ranging from 35 to 50% by weight based on 100% by weight of the total of the inorganic filler component. When the amount of the first filler is less than 35 wt%, the maximum mechanical strength of the molded article is insufficient; when it is more than 50% by weight, the probability of having pores of different sizes in the molded article is increased.

The type of the second filler is not particularly limited herein, and any inorganic filler having an average particle diameter ranging from 0.2 mm to less than 4 mm is suitable, and the kind of the second filler is, for example but not limited to, mineral material, cement concrete or both. A combination. Among them, mineral materials and cement concrete are as described above, so they will not be described again. Preferably, the second filler is used in an amount ranging from 35 to 45 wt% based on 100 wt% of the total of the inorganic filler component. When the amount of the second filler is less than 35 wt%, the mechanical strength of the molded article may be increased. Large; when it is more than 45 wt%, the maximum mechanical strength of the molded article is insufficient, and the probability of having pores having different pore sizes is increased.

The type of the third filler is not particularly limited herein, as long as it is flat Inorganic fillers having a particle size ranging from less than 0.2 mm are suitable, and the type of the third filler is, for example but not limited to, mineral material, cement concrete or a combination of the two. Among them, mineral materials and cement concrete are as described above, so they will not be described again. Preferably, the third filler is used in an amount ranging from 10 to 20% by weight based on 100% by weight of the total of the inorganic filler component. When the amount of the third filler is less than 10% by weight, the probability of having a pore having a small pore diameter in the molded article is increased; when it is more than 20% by weight, the mechanical strength of the molded article is uniformly weakened.

The organic bonding component is used to bond the inorganic filler component. The organic bonding component includes a bonding material such as, but not limited to, an acrylic resin, an unsaturated polyester resin, an epoxy resin, an amine curing agent with an epoxy resin, and the like.

Preferably, the organic bonding component further comprises a diluent. The The diluent is used to reduce the viscosity of the organic bonding component. When the adhesive material is an epoxy resin and an amine curing agent with an epoxy resin, the diluent can also reduce the amount of bubbles generated when the epoxy resin reacts with the amine curing agent. The type of the diluent is not particularly limited as long as the above-mentioned effects can be achieved, and the commercially available product of the diluent is, for example but not limited to, Di, 2E or BGE of Yunde Industrial, and the above diluent can be used alone or in combination. use. Preferably, the diluent is used in an amount ranging from 5 to 15% by weight based on 100% by weight of the total of the organic binder component. When the amount of the diluent is less than 5 wt%, The resin concrete composition has a large molding obstacle when it is made into a molded article; when it is more than 15% by weight, the adhesion of the organic bonding component is lowered and the bonding force is uneven. When the organic bonding component includes a diluent, an epoxy resin, and an amine curing agent with an epoxy resin, the epoxy resin is used in an amount ranging from 60 to 75 wt% based on 100 wt% of the total of the organic binder component. %, the amine curing agent is used in an amount ranging from 20 to 35 wt%, and the diluent is used in an amount ranging from 5 to 15 wt%.

Preferably, the resin concrete composition is 100 parts by weight. The inorganic filler component is used in an amount ranging from 90 to 94 parts by weight, and the organic binder component is used in an amount ranging from 6 to 10 parts by weight. When the amount of the inorganic filler component is less than 90 parts by weight (that is, the amount of the organic binder component is more than 10 parts by weight), the maximum mechanical strength and the average mechanical strength of the molded article are lowered; when the inorganic filler component is used When the amount is more than 94 parts by weight (i.e., the amount of the organic binder component is less than 6 parts by weight), the mechanical strength difference of the molded article is enlarged.

The molded article is formed by curing the resin concrete composition be made of. The specific manner of curing molding can be, for example, casting or compression molding. A specific example of the preparation method of the molded article comprises the following steps: (1) mixing the first filler, the second filler and the third filler to obtain the inorganic filler component; (2) the inorganic filler component And the organic cement composition is mixed to obtain the resin concrete composition; (4) the resin concrete composition is cast in a mold, and the molded product is obtained after being solidified and demolded, wherein the casting temperature is obtained. And the curing time is adjusted according to the type of the organic bonding component.

The molded article has low porosity, high compressive strength and resistance The strength of the curve, and thus can be applied in the field of construction and mechanical engineering. Specific uses in the field of construction are, for example, the main load-bearing structure of the building, such as beams and columns, or for decoration, decoration, such as artificial stone flow tables, artificial stone bathtubs, and the like. Specific applications in the field of mechanical engineering are, for example, components of semiconductor process equipment, components of precision inspection equipment, and components of processing machines, such as equipment beams for carrying tools and tool holders, and bases for groove slides.

The present invention will be further illustrated by the following examples, but it should be understood that this embodiment is intended to be illustrative only and not to be construed as limiting.

<Example>

[Example 1] Resin concrete composition and molded article

Inorganic filler component: 45 wt% of the first filler (granite, average particle size range: 4 mm to 10 mm), 37 wt% of the second filler (granite, average particle size range: 0.2 mm to less than 4 mm), and 18 wt% The third filler (granite, average particle size range: less than 0.2 mm) is uniformly mixed to obtain an inorganic filler component.

Organic bonding component: 68wt% epoxy resin (vendor: Yunde Industry, model: X318), 20wt% amine curing agent (vendor: Yunde Industry, model: X318) and 12wt% thinner (vendor: Yunde Industrial, model: BGE) evenly mixed to obtain a bonded component.

91 parts by weight of the inorganic filler component and 9 parts by weight of the organic binder component were uniformly mixed to obtain a resin concrete composition of Example 1. The resin concrete composition is cast in a mold (manufacturer model of the casting machine: Xinqiang Technology, casting temperature: 23±2 ° C), after curing and demoulding (curing time: 120 to 168 hours), the implementation is carried out The molded article of Example 1.

[Examples 2 to 3] Resin concrete composition and molded article

The resin concrete compositions of Examples 2 to 3 and the resin concrete molded articles were prepared in the same manner as in Example 1, except that the amounts of the components in Examples 2 to 3 were changed as shown in Table 1.

[sexual quality test]

Compressive strength

The compressive strengths of the molded articles of Examples 1 to 3 were measured by the National Standard of the Republic of China (CNS) 13175, and the measurement results are shown in Table 1.

2. Flexural strength

The flexural strengths of the molded articles of Examples 1 to 3 were measured by the National Standard of the Republic of China (CNS) 13175, and the measurement results are shown in Table 1.

3. Porosity

The following measurement steps are illustrated by way of example 1, and Examples 2 to 3 are measured in the same manner.

The resin concrete composition of Example 1 was molded into a molded article having a volume of 100 cm × 100 cm × 20 cm, and the molded article was cut into a "meter" shape to obtain 8 slices. Each surface of each slice was taken with a high-resolution camera. The resulting image was first calculated by the image processing software (LabVIEW) to calculate the total pore area and total surface area of each slice, plus the total pores of the total of 8 slices. The area and total surface area give the total pore area and total surface area of the molded article, and the porosity of the molded article is calculated by the following formula.

Porosity (%) of the molded product = total pore area of the molded product 总 total surface area of the molded product × 100%

From the results of Table 1, it was confirmed that the molded articles of Examples 1 to 3 had low porosity, high compressive strength, and flexural strength.

In summary, the first filler having an average particle diameter ranging from 4 mm to 10 mm in an amount ranging from 35 to 50% by weight, the second filler having an average particle diameter ranging from 0.2 mm to less than 4 mm, and an average particle diameter range of less than The 0.2 mm third filler makes the preparation of the resin concrete composition inexpensive. Further, the molded article obtained by the resin concrete composition has low porosity, high compressive strength and flexural strength, so that the object of the present invention can be achieved.

However, the above is only the preferred embodiment of the present invention. The scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the present invention in the scope of the invention and the patent specification are still within the scope of the invention.

Claims (8)

A resin concrete composition comprising: an inorganic filler component, comprising a first filler, a second filler, and a third filler, wherein the first filler has an average particle diameter ranging from 4 mm to 10 mm, and the average particle size of the second filler The diameter ranges from 0.2 mm to less than 4 mm, the third filler has an average particle diameter ranging from less than 0.2 mm, and the first filler is used in an amount ranging from 35 to 50% by weight based on 100% by weight of the total of the inorganic filler component. And an organic bonding component for bonding the inorganic filler component. The resin concrete composition according to claim 1, wherein the second filler is used in an amount ranging from 35 to 45 wt% based on 100 wt% of the total of the inorganic filler component. The resin concrete composition according to claim 1, wherein the third filler is used in an amount ranging from 10 to 20% by weight based on 100% by weight of the total of the inorganic filler component. The resin concrete composition according to claim 1, wherein the inorganic filler component is used in an amount ranging from 90 to 94 parts by weight based on 100 parts by weight of the resin concrete composition, and the organic binder component is used in an amount ranging from 6 to 10 parts by weight. The resin concrete composition according to claim 1, wherein the organic binder component comprises a diluent. The resin concrete composition according to claim 5, wherein the diluent is used in an amount ranging from 5 to 15% by weight based on 100% by weight of the total of the organic binder component. The resin concrete composition according to claim 1, wherein the inorganic filler component has an average particle diameter ranging from 0.1 to 10 mm. A molded article obtained by curing a resin concrete composition according to any one of claims 1 to 7.