High-strength building particles and preparation method thereof

Abstract

The invention relates to the technical field of building particle preparation, in particular to a high-strength building particle and a preparation method thereof, and the high-strength building particle comprises the following raw materials in parts by weight: 50-70 parts of high-purity polystyrene, 10-25 parts of chopped glass fiber and 5-15 parts of nano calcium carbonate. The compressive strength of the building material particles is improved, under the standard test condition, the building material particles can bear the pressure far higher than that of traditional building materials to be broken or deformed, so that the building structure built by using the particles is stable and can be applied to engineering projects such as high-rise buildings and large bridges which have strict requirements for bearing capacity, and secondly, the building material particles have good application prospects. The building particle has good durability, can resist erosion of various severe environmental factors such as rain wash, chemical substance corrosion and freeze-thaw cycle, greatly prolongs the service life of a building, has light weight, is beneficial to reducing the infrastructure cost and energy consumption, and is suitable for popularization and application. And the requirements of modern buildings on structural strength, durability and the like can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of building particle preparation, and specifically relates to a high-strength building particle and a preparation method thereof. Background Art

[0002] Today, with the continuous development of the construction industry, the requirements for the performance of building materials are also increasing day by day. However, the existing building material particles have extremely low compressive strength and cannot withstand pressures far exceeding those of traditional building materials under standard test conditions, resulting in cracking or deformation. This makes the building structures constructed with these particles not stable enough and not applicable to engineering projects with demanding load-bearing requirements such as high-rise buildings and large bridges. Secondly, they do not have good durability and cannot resist the erosion of various harsh environmental factors, such as rainwater scouring, chemical corrosion, and freeze-thaw cycles, which greatly shortens the service life of buildings. In addition, the building particles do not have a light weight, which is not conducive to reducing the cost of infrastructure construction and energy consumption, and cannot meet the various requirements of modern buildings for structural strength, durability, etc. Therefore, we propose a high-strength building particle and a preparation method to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-strength building particle and a preparation method thereof to solve the problems mentioned in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A high-strength building particle, characterized in that: its raw material composition is calculated by weight as follows: 50 parts to 70 parts of high-purity polystyrene, 10 parts to 25 parts of chopped glass fiber, 5 parts to 15 parts of nano calcium carbonate, 5 parts to 10 parts of styrene-butadiene-styrene block copolymer (SBS), 1 part to 3 parts of silane coupling agent, 1 part to 3 parts of antioxidant, and 2 parts to 5 parts of lubricant.

[0005] Further preferably, polystyrene is the main part, providing the basic physical form and basic properties. Polystyrene determines the basic nature of the particle. Polystyrene determines the formability and flexibility of the particle. Glass fiber has high strength and modulus, enhancing the compressive strength and rigidity of the particle. The addition of glass fiber can significantly improve the mechanical properties of the particle without significantly increasing the weight, enabling it to withstand greater external forces. Nano calcium carbonate can, on the one hand, be used as an extender to reduce costs to a certain extent, and on the other hand, due to its nano-scale effect, it can improve the processing performance of the particle and increase the hardness. Uniformly dispersed in the polystyrene matrix, it helps to improve the overall compactness and stability of the material.

[0006] Further preferably, the toughening agent is used to improve the toughness of the particles, prevent brittle fracture when they are stressed, effectively absorb and disperse impact energy, so that the particles have a certain impact resistance while having high strength. Although the coupling agent is used in a small amount, it can establish a good interfacial bond between the inorganic fillers (glass fiber, nano-calcium carbonate) and the polystyrene matrix, enhance the interaction between the two, and thus give full play to the reinforcing effect of the filler and improve the comprehensive properties of the composite material.

[0007] Further preferably, the antioxidant is used to prevent the performance of polystyrene from deteriorating due to oxidation during processing and long-term use, extend the service life of the particles, and maintain the stability of their performance. The lubricant can reduce the friction of the material during processing, improve the fluidity of the material, make the processing process smoother, reduce equipment wear, and at the same time help to improve the surface quality and molding accuracy of the particles.

[0008] The present invention also provides a method for preparing high-strength building particles, comprising the following steps:

[0009] S1. Put the raw material particles into a cleaning cylinder for cleaning operation;

[0010] S2. Put the cleaned raw material particles into a dryer for drying operation;

[0011] S3. Put the dried raw material particles into a crusher for crushing pretreatment;

[0012] S4. Put the crushed raw materials into a mixer, start the motor, and the motor drives the stirring rod to rotate. The stirring rod rotates to perform a uniform mixing operation on the raw materials;

[0013] S5. Cut the mixed particle raw materials into particles, and finally use a rounding mechanism to round the particles into spherical shapes.

[0014] Further preferably, the raw material particles are washed three times, and the washing time for each time is 5 to 10 minutes. The drying process in the dryer is carried out under a constant temperature condition of 40°C to 60°C until the water content of the raw material particles is lower than 5%.

[0015] Further preferably, for the crushing pretreatment, a crusher is used to crush the raw material particles to a size of 10 to 100 microns.

[0016] Further preferably, the raw material particles are uniformly stirred by a high-speed stirring rod. The rotation speed of the stirring rod is set at 2000 revolutions per minute, and the stirring time is 30 minutes.

[0017] Further preferably, the weight of the particles discharged by the rolling mechanism is detected in real time by a pressure sensor, and the change rate of the total weight of the particles discharged by the rolling mechanism is calculated to improve the product quality. The product shape is round (diameter 6 - 10 mm), and the product strength is such that it does not deform when pinched between the thumb and index finger.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention improves the compressive strength of building material particles. Under standard test conditions, it can withstand far more pressure than traditional building materials before cracking or deforming, making the building structure built with such particles more stable. It can be applied to engineering projects with demanding load-bearing requirements such as high-rise buildings and large bridges. Secondly, it has good durability and can resist the erosion of various harsh environmental factors, such as rainwater scouring, chemical corrosion, and freeze-thaw cycles, greatly increasing the service life of buildings. In addition, the building particles have a relatively light weight, which is conducive to reducing infrastructure costs and energy consumption, and can meet the requirements of modern buildings in terms of structural strength, durability, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the flowchart of the steps of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1

[0022] Please refer to Figure 1 , the present invention provides a technical solution: A high-strength building particle, the composition of its raw materials by weight is: 50 parts of high-purity polystyrene, 10 parts of short-cut glass fiber, 5 parts of nano-calcium carbonate, 5 parts of styrene-butadiene-styrene block copolymer (SBS), 1 part of silane coupling agent, 1 part of antioxidant, and 2 parts of lubricant.

[0023] In this embodiment, specifically: Polystyrene is the main part, providing the basic physical form and basic properties. Polystyrene determines the intrinsic properties of the particles, and it also determines the formability and flexibility of the particles. Glass fiber has high strength and modulus, enhancing the compressive strength and rigidity of the particles. Adding glass fiber can significantly improve the mechanical properties of the particles without significantly increasing the weight, enabling them to withstand greater external forces. Nano calcium carbonate, on the one hand, can be used as an extender to reduce costs to a certain extent. On the other hand, due to its nano-scale effect, it can improve the processing performance of the particles and increase the hardness. Uniformly dispersed in the polystyrene matrix, it helps to improve the overall density and stability of the material;

[0024] In this embodiment, specifically: The role of the toughening agent is to improve the toughness of the particles, prevent brittle fracture when they are stressed, and can effectively absorb and disperse impact energy, enabling the particles to have a certain impact resistance while having high strength. Although the coupling agent is used in a small amount, it can establish a good interfacial bond between the inorganic fillers (glass fiber, nano calcium carbonate) and the polystyrene matrix, enhancing the interaction between the two, thereby giving full play to the reinforcing effect of the fillers and improving the comprehensive performance of the composite material;

[0025] In this embodiment, specifically: The antioxidant is used to prevent the performance of polystyrene from deteriorating due to oxidation during processing and long-term use, extend the service life of the particles, and maintain the stability of their performance. The lubricant can reduce the friction of the material during processing, improve the fluidity of the material, make the processing process smoother, reduce equipment wear, and at the same time help to improve the surface quality and forming accuracy of the particles;

[0026] The present invention also provides a method for preparing high-strength building particles, including the following steps:

[0027] S1. Put the raw material particles into a cleaning cylinder for cleaning operation;

[0028] S2. Put the cleaned raw material particles into a dryer for drying operation;

[0029] S3. Put the dried raw material particles into a crusher for pre-crushing treatment;

[0030] S4. Put the crushed raw materials into a mixer, start the motor, and the motor drives the stirring rod to rotate. The rotation of the stirring rod evenly mixes the raw materials;

[0031] S5. Cut the mixed particle raw materials into particles, and finally use a rounding mechanism to round the particles into spherical shapes.

[0032] In this embodiment, specifically: the raw material particles are washed three times, with each washing time being 5 minutes. The drying process in the dryer is carried out under a constant temperature condition of 40 °C until the water content of the raw material particles is lower than 5%.

[0033] In this embodiment, specifically: for the crushing pretreatment, a crusher is used to crush the raw material particles to a size of 10 microns.

[0034] In this embodiment, specifically: the raw material particles are evenly stirred by a high-speed stirring rod. The rotation speed of the stirring rod is set at 2000 revolutions per minute, and the stirring time is 30 minutes.

[0035] In this embodiment, specifically: a pressure sensor is used to detect the weight of the particles discharged from the rounding mechanism in real time, and the change rate of the total weight of the particles discharged from the rounding mechanism is calculated to improve the product quality. The product shape is round (diameter 6 - 10 mm), and the product strength: it does not deform when pinched by the thumb and index finger.

[0036] Embodiment 2

[0037] Please refer to Figure 1 , the present invention provides a technical solution: a high-strength building particle, and its raw material composition is by weight: 60 parts of high-purity polystyrene, 18 parts of short-cut glass fiber, 10 parts of nano calcium carbonate, 8 parts of styrene-butadiene-styrene block copolymer (SBS), 2 parts of silane coupling agent, 2 parts of antioxidant, and 4 parts of lubricant.

[0038] In this embodiment, specifically: polystyrene is the main part, providing the basic physical form and basic properties. Polystyrene determines the basic intrinsic properties of the particles, and polystyrene determines the moldability and flexibility of the particles. Glass fiber has relatively high strength and modulus, enhancing the compressive strength and rigidity of the particles. The addition of glass fiber can significantly improve the mechanical properties of the particles without significantly increasing the weight, enabling them to withstand greater external forces. On the one hand, nano calcium carbonate can be used as an extender to reduce costs to a certain extent. On the other hand, due to its nano-scale effect, it can improve the processing performance of the particles and increase the hardness. Uniformly dispersed in the polystyrene matrix, it helps to improve the overall denseness and stability of the material;

[0039] In this embodiment, specifically: the role of the toughening agent is to improve the toughness of the particles, prevent brittle fracture when they are stressed, and can effectively absorb and disperse impact energy, enabling the particles to have a certain impact resistance while having high strength. Although the amount of the coupling agent used is small, it can establish a good interfacial bond between the inorganic fillers (glass fiber, nano calcium carbonate) and the polystyrene matrix, enhancing the interaction between the two, thereby giving full play to the reinforcing effect of the fillers and improving the comprehensive performance of the composite material;

[0040] In this embodiment, specifically: antioxidants are used to prevent the performance degradation of polystyrene due to oxidation during processing and long-term use, extend the service life of the particles, and maintain the stability of their performance. Lubricants can reduce the friction of the material during processing, improve the fluidity of the material, make the processing process smoother, reduce equipment wear, and at the same time help improve the surface quality and molding accuracy of the particles;

[0041] The present invention also provides a method for preparing high-strength building particles, comprising the following steps:

[0042] S1. Put the raw material particles into a cleaning cylinder for cleaning operation;

[0043] S2. Put the cleaned raw material particles into a dryer for drying operation;

[0044] S3. Put the dried raw material particles into a crusher for pre-crushing treatment;

[0045] S4. Put the crushed raw materials into a mixer, start the motor, and the motor drives the stirring rod to rotate. The stirring rod rotates to uniformly mix the raw materials;

[0046] S5. Cut the mixed granular raw materials into particles, and finally use a rounding mechanism to round the particles into spherical shapes.

[0047] In this embodiment, specifically: the raw material particles are washed three times, and the washing time for each time is 8 minutes. The drying process in the dryer is carried out under a constant temperature condition of 50°C until the water content of the raw material particles is lower than 5%;

[0048] In this embodiment, specifically: for the pre-crushing treatment, a crusher is used to crush the raw material particles to a size of 50 microns;

[0049] In this embodiment, specifically: the raw material particles are uniformly stirred by a high-speed stirring rod. The rotation speed of the stirring rod is set at 2000 revolutions per minute, and the stirring time is 30 minutes.

[0050] In this embodiment, specifically: a pressure sensor is used to detect the weight of the particles discharged from the rounding mechanism in real time, calculate the change rate of the total weight of the particles discharged from the rounding mechanism, improve the quality of the product. The shape of the product is circular (diameter 6 - 10 mm), and the product strength: it does not deform when pinched by the thumb and index finger.

[0051] Example 3

[0052] Please refer to Figure 1, the present invention provides a technical solution: a high-strength building granule, the raw material composition of which is by weight: 70 parts of high-purity polystyrene, 25 parts of chopped glass fiber, 15 parts of nano calcium carbonate, 10 parts of styrene-butadiene-styrene block copolymer (SBS), 3 parts of silane coupling agent, 3 parts of antioxidant, and 5 parts of lubricant.

[0053] In this embodiment, specifically: Polystyrene is the main part, providing the basic physical form and basic properties. Polystyrene determines the inherent properties of the granule. Polystyrene determines the formability and flexibility of the granule. Glass fiber has high strength and modulus, enhancing the compressive strength and rigidity of the granule. The addition of glass fiber can greatly improve the mechanical properties of the granule without significantly increasing the weight, enabling it to withstand greater external forces. Nano calcium carbonate can, on the one hand, be used as an extender to reduce costs to a certain extent, and on the other hand, due to its nano-scale effect, it can improve the processing performance of the granule and increase hardness, and is evenly dispersed in the polystyrene matrix, helping to improve the overall denseness and stability of the material;

[0054] In this embodiment, specifically: The role of the toughening agent is to improve the toughness of the granule, prevent it from brittle fracture when stressed, and can effectively absorb and disperse impact energy, enabling the granule to have a certain impact resistance while having high strength. Although the amount of the coupling agent is small, it can establish a good interfacial bond between the inorganic fillers (glass fiber, nano calcium carbonate) and the polystyrene matrix, enhancing the interaction between the two, thereby giving full play to the reinforcing effect of the filler and improving the comprehensive performance of the composite material;

[0055] In this embodiment, specifically: The antioxidant is used to prevent the performance of polystyrene from decreasing due to oxidation during processing and long-term use, extend the service life of the granule, and maintain the stability of its performance. The lubricant can reduce the friction of the material during processing, improve the fluidity of the material, make the processing process smoother, reduce equipment wear, and at the same time help to improve the surface quality and forming accuracy of the granule;

[0056] The present invention also provides a preparation method for the high-strength building granule, which includes the following steps:

[0057] S1. Put the raw material granules into a cleaning cylinder for cleaning operation;

[0058] S2. Put the cleaned raw material granules into a dryer for drying operation;

[0059] S3. Put the dried raw material granules into a crusher for crushing pretreatment;

[0060] S4. Put the crushed raw materials into a mixer, start the motor, and the motor drives the stirring rod to rotate. The rotation of the stirring rod uniformly mixes the raw materials;

[0061] S5. Cut the mixed granular raw materials into particles, and finally use a rounding mechanism to round the particles into spheres.

[0062] In this embodiment, specifically: the raw material particles are washed three times, and the washing time for each time is 5 to 10 minutes. The drying process of the dryer is carried out under the constant temperature condition of 60°C until the water content of the raw material particles is lower than 5%.

[0063] In this embodiment, specifically: for the crushing pretreatment, use a crusher to crush the raw material particles to a size of 10 to 100 microns.

[0064] In this embodiment, specifically: uniformly stir the raw material particles through a high-speed stirring rod. The rotation speed of the stirring rod is set at 2000 revolutions per minute, and the stirring time is 30 minutes.

[0065] In this embodiment, specifically: use a pressure sensor to detect the weight of the particles discharged by the rounding mechanism in real time, calculate the change rate of the total weight of the particles discharged by the rounding mechanism, improve the quality of the product. The shape of the product is round (diameter 6 - 10 mm), and the product strength: it does not deform when pinched by the thumb and index finger.

[0066] During use, put the raw material particles into the cleaning cylinder for cleaning operations. The raw material particles are washed three times, and the washing time for each time is 5 to 10 minutes. Put the washed raw material particles into the dryer for drying operations. The drying process of the dryer is carried out under the constant temperature condition of 40°C to 60°C until the water content of the raw material particles is lower than 5%. Put the dried raw material particles into the crusher for crushing pretreatment. For the crushing pretreatment, use a crusher to crush the raw material particles to a size of 10 to 100 microns. Put the crushed raw materials into the mixer, start the motor, and the motor drives the stirring rod to rotate. The rotation of the stirring rod uniformly mixes the raw materials. Uniformly stir the raw material particles through a high-speed stirring rod. The rotation speed of the stirring rod is set at 2000 revolutions per minute, and the stirring time is 30 minutes. Cut the mixed granular raw materials into particles, and finally use a rounding mechanism to round the particles into spheres. Use a pressure sensor to detect the weight of the particles discharged by the rounding mechanism in real time, calculate the change rate of the total weight of the particles discharged by the rounding mechanism, and improve the quality of the product.

[0067] The present invention improves the compressive strength of building material particles. Under standard test conditions, they can withstand far greater pressure than traditional building materials before cracking or deforming, enabling the building structures constructed with these particles to be stable. It can be applied to engineering projects with stringent load-bearing capacity requirements, such as high-rise buildings and large bridges. Secondly, it has good durability and can resist the erosion of various harsh environmental factors, such as rainwater scouring, chemical corrosion, and freeze-thaw cycles, greatly increasing the service life of buildings. In addition, the building particles have a relatively light weight, which is conducive to reducing infrastructure costs and energy consumption, and can meet the various requirements of modern buildings for structural strength, durability, etc.

[0068] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength building particle, characterized in that: The raw material composition is as follows by weight: 50 to 70 parts of high-purity polystyrene, 10 to 25 parts of short-cut glass fiber, 5 to 15 parts of nano calcium carbonate, 5 to 10 parts of styrene-butadiene-styrene block copolymer (SBS), 1 to 3 parts of silane coupling agent, 1 to 3 parts of antioxidant, and 2 to 5 parts of lubricant.

2. A high-strength building granule according to claim 1, characterized in that: Polystyrene is the main part, providing the basic physical form and basic properties. Polystyrene determines the intrinsic properties of the particles and the moldability and flexibility of the particles. Glass fiber has high strength and modulus, enhancing the compressive strength and rigidity of the particles. The addition of glass fiber can greatly improve the mechanical properties of the particles without significantly increasing the weight, enabling them to withstand greater external forces. Nano calcium carbonate can, on the one hand, be used as an extender to reduce costs to a certain extent, and on the other hand, due to its nano-scale effect, it can improve the processing performance of the particles and increase hardness. Uniformly dispersed in the polystyrene matrix, it helps to improve the overall densification and stability of the material.

3. A high-strength building particle according to claim 1, characterized in that: The role of the toughening agent is to improve the toughness of the particles, prevent brittle fracture when stressed, and be able to effectively absorb and disperse impact energy, enabling the particles to have a certain impact resistance while having high strength. Although the amount of the coupling agent used is small, it can establish a good interfacial bond between the inorganic fillers (glass fiber, nano calcium carbonate) and the polystyrene matrix, enhancing the interaction between the two, thereby fully exerting the reinforcing effect of the fillers and improving the comprehensive performance of the composite material.

4. A high-strength building granule according to claim 1, characterized in that: The antioxidant is used to prevent the performance of polystyrene from deteriorating due to oxidation during processing and long-term use, extend the service life of the particles, and maintain the stability of their performance. The lubricant can reduce the friction of the material during processing, improve the fluidity of the material, make the processing process smoother, reduce equipment wear, and at the same time help to improve the surface quality and molding accuracy of the particles.

5. A method for preparing high-strength building particles according to claim 4, characterized in that: It includes the following steps: S1. Put the raw material particles into the cleaning cylinder for cleaning operation; S2. Put the cleaned raw material particles into the dryer for drying operation; S3. Put the dried raw material particles into the crusher for pre-crushing treatment; S4. Put the crushed raw materials into the mixer, start the motor, and the motor drives the stirring rod to rotate. The rotation of the stirring rod evenly mixes the raw materials; S5. Cut the mixed granular raw materials into particles, and finally use the rounding mechanism to round the particles into spherical shapes.

6. A method for preparing high-strength building particles according to claim 5, characterized in that: The raw material particles are washed three times, and each washing time is 5 to 10 minutes. The drying process in the dryer is carried out under a constant temperature condition of 40°C to 60°C until the water content of the raw material particles is lower than 5%.

7. A method for preparing high-strength building particles according to claim 6, characterized in that: For the pre-crushing treatment, the raw material particles are crushed to a size of 10 to 100 microns using a crusher.

8. A method for preparing high-strength building particles according to claim 7, characterized in that: The raw material particles are evenly stirred by the high-speed stirring rod. The rotation speed of the stirring rod is set at 2000 revolutions per minute, and the stirring time is 30 minutes.

9. The method for preparing a high-strength building particle according to claim 8, wherein: The weight of the particles discharged by the rolling mechanism is detected in real time by using a pressure sensor, and the change rate of the total weight of the particles discharged by the rolling mechanism is calculated to improve the product quality. The product shape is round (with a diameter of 6 - 10 mm), and the product strength: it will not deform when pinched by the thumb and index finger.

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