CN116749091A - A kind of bio-based grinding tool and preparation method thereof - Google Patents

Abstract

The invention discloses a biological-based grinding tool which comprises 25-35 parts of adsorption grinding materials and 10-25 parts of auxiliary materials calculated according to the weight of materials; 25-40 parts of stretch-resistant fiber, 10-15 parts of adhesive, 25-50 parts of bonding agent, 2-5 parts of defoamer and 10-20 parts of polishing powder. A preparation method of a bio-based grinding tool comprises the following steps of firstly, manufacturing adsorption abrasive particles by using adsorption abrasive; step two, mixing the manufactured adsorption abrasive particles with the auxiliary weight materials; step three, adding the heavy grinding particles, the defoamer, the binder, the polishing powder and the stretch-resistant fibers into mixing equipment for mixing; and fourthly, placing the mixed materials into a mould for hot pressing and solidification to form the bio-based grinding tool. The auxiliary grinding material particles are manufactured by preparing the adsorption grinding material particles and combining the adsorption grinding material particles with the auxiliary materials, so that the sedimentation rate of the abrasion powder can be improved, and the damage of dust to human bodies is reduced. In addition, the binder adopts a bio-based resin binder, so that the generation of waste gas is reduced in the processing and using processes.

Description

A kind of bio-based grinding tool and preparation method thereof

Technical field

The present invention relates to the technical field of abrasive tools, specifically a bio-based abrasive tool and a preparation method thereof.

Background technique

Due to their certain elasticity and high bonding strength, resin-based abrasives are mainly used in industrial production processes such as steel, automobiles, aerospace, building materials, chemicals, and machinery. They are used for rough, fine, and fine processing of various metal and non-metal materials. One of the important processing tools used in grinding processes such as grinding and polishing, it is widely used especially in the fields of grinding and polishing.

At present, the commonly used binder for resin-based abrasive tools is phenolic resin. The raw materials such as formaldehyde and phenol used to synthesize phenolic resin mainly come from non-renewable petrochemical resources. During the preparation process of traditional thermosetting resin abrasive tools, the forming and hardening process takes a long time, usually several hours. In addition, during this process, high temperature and high pressure are required, which results in high production costs. Moreover, during the curing process, chemicals will be released. Free formaldehyde and other harmful gases are not environmentally friendly. During the use of abrasive tools, the resin will release harmful gases such as formaldehyde, benzene, and toluene when experiencing high temperatures, and will also produce a large amount of toxic dust, waste, etc., seriously endangering occupational health and environmental pollution.

Contents of the invention

In view of the problems existing in the above-mentioned prior art, the present invention provides a bio-based grinding tool and a preparation method thereof.

In order to achieve the above objectives, the present invention is achieved through the following technical solutions:

A bio-based abrasive tool, including 25-35 parts of adsorbed abrasives based on material weight, 10-25 parts of attached weights; 25-40 parts of anti-stretch fibers, 10-15 parts of adhesives, and 25-50 parts of binding agents parts, 2-5 parts of defoaming agent, 10-20 parts of polishing powder.

A method for preparing bio-based abrasive tools, including step 1: using adsorbed abrasives to make adsorbed abrasive particles; step 2: mixing the prepared adsorbed abrasive particles and attached weight materials to combine the attached weight materials and adsorbed abrasive particles to form attached weight abrasives Particles; Step 3: Put the heavy abrasive particles, defoaming agent, bonding agent, polishing powder, and anti-tensile fiber into the mixing equipment for mixing; Step 4: Put the mixed materials into the mold and heat press to solidify. Formation of biobased abrasive tools.

Further, the step one includes: weighing 25-35 parts of the adsorbed abrasive and 10-15 parts of the adhesive in units of weight, pouring the adsorbed abrasive and adhesive into the granulation equipment, and placing the adsorbent abrasive into the granulation equipment. Set the working temperature at 50℃-60℃ and start the granulation equipment to produce adsorbed abrasive particles.

Further, the adhesive is starch water, and the mixing ratio of starch and water is 1-5:10-20.

Further, the adsorbed abrasive in step one is irregular bamboo charcoal particles or charcoal particles.

Further, the particle size of the adsorbed abrasive particles is 100-400 μm.

Further, the second step includes: taking 10-25 parts of the adsorbed abrasive particles and attached weight materials produced in step one and pouring them into the mixing equipment, setting the speed of the mixing equipment to 50-90 rpm, and the rotation time to 1 -1.5h.

Further, the third step includes taking 20-25 parts of the heavy abrasive particles and binding agent prepared in the second step and putting them into the mixing equipment, setting the speed of the mixing equipment to 90-120 rpm, starting the mixing equipment, and turning 10-20min, then put 25-40 parts of tensile fiber into the mixing equipment, continue to rotate for 20-40min, and finally put 2-5 parts of defoaming agent and 10-20 parts of polishing powder into the mixing equipment, and continue to rotate. 20-40min is enough.

Further, the stretch-resistant fiber includes 15-25 parts of plant fiber strips and 10-15 parts of asbestos fiber strips.

Further, the adhesive is a bio-based resin binder.

Beneficial effects of the present invention:

The invention provides a bio-based abrasive tool and its preparation method by preparing adsorbed abrasive particles and combining the adsorbed abrasive particles with weighted materials to produce weighted abrasive particles. The weighted abrasive particles can increase the sedimentation rate of the wear powder. , Reduce the harm of dust to the human body. At the same time, anti-stretch fibers are used to improve the tensile resistance of the grinding tool. In addition, the binding agent uses bio-based resin binding agent, which reduces the generation of waste gas during processing and use, ensuring the health of practitioners.

Description of the drawings

Figure 1 is a flow chart of the preparation method of bio-based abrasive tools of the present invention;

Figure 2 is a material list of Examples 1-6 of the present invention;

Figure 3 is a performance test table of the bio-based abrasive tools prepared in Examples 1-6 of the present invention;

Figure 4 is a SEM image of the weighted abrasive particles of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

A bio-based abrasive tool, including 25-35 parts of adsorbed abrasives based on material weight, 10-25 parts of attached weights; 25-40 parts of anti-stretch fibers, 10-15 parts of adhesives, and 25-50 parts of binding agents parts, 2-5 parts of defoaming agent, 10-20 parts of polishing powder.

Example 1

Please refer to Figures 1-4, which is a method for preparing bio-based grinding tools provided by the present invention, including

Step 1. Use adsorbed abrasives to make adsorbed abrasive particles: weigh 25 parts of adsorbed abrasives and 10 parts of binder by weight.

The adsorbed abrasive is original, irregular abrasive raw material. The abrasive used in this embodiment is bamboo charcoal, that is, 25 parts of bamboo charcoal are weighed. The adhesive uses a low-viscosity adhesive to avoid affecting the adsorption of bamboo charcoal due to excessive viscosity. In this embodiment, starch water is used as the adhesive, that is, 10 parts of starch water is taken. And the mixing ratio of starch and water is 1:10. Pour 25 parts of bamboo charcoal and 10 parts of starch water into the granulation equipment, set the working temperature of the granulation equipment at 50℃-60℃, start the granulation equipment, and produce adsorbed abrasive particles with a particle size of 100-400 μm. .

Step 2: Mix the prepared adsorbed abrasive particles and the weighted material so that the weighted material and the adsorbed abrasive particles are combined to form the weighted abrasive particles.

The weight-added material is a powdery material with a relatively high density. In the embodiment, copper powder is used as the weight-added material. Take 10 parts of the copper powder and put the adsorbed abrasive particles produced in step 1 and 10 parts of the copper powder into the mixing equipment at the same time. , set the speed of the mixing equipment to 50-90 rpm, start the mixing equipment, and rotate it for 1-1.5 hours, so that the copper powder can fully contact the adsorbed abrasive particles, complete the adsorption, and produce heavy abrasive particles.

Step 3: Put the heavy abrasive particles, defoaming agent, binding agent, polishing powder, and anti-tensile fiber into the mixing equipment for mixing.

Among them, take 20 parts of the binder, and the binder is a bio-based resin binder, that is, take 20 parts of the bio-based resin binder, and put 20 parts of the bio-based resin binder and the heavy abrasive particles prepared in step 2 into the mixing equipment , set the speed of the mixing equipment to 90-120 rpm, start the mixing equipment, rotate for 10-20 minutes, and then put 25 parts of the anti-tensile fiber into the mixing equipment. The anti-tensile fiber includes 15 parts of plant fiber strips and asbestos fiber. 10 parts of strips, continue to rotate for 20-40 minutes, and finally put 2 parts of defoaming agent and 10 parts of polishing powder into the mixing equipment, and continue to rotate for 20-40 minutes.

Step 4: Put the mixed materials into the mold and heat-press and solidify to form a bio-based abrasive tool.

During the hot-pressing forming process, the pressure is 300-600kg/cm2, the hot-pressing temperature is set at 100-200°C according to the different curing agents, and the hot-pressing time is set at 45-120 minutes according to the difference between the grinding tools.

Example 2

Please refer to Figures 1-4, which is a method for preparing bio-based grinding tools provided by the present invention, including

Step 1. Use adsorbed abrasives to make adsorbed abrasive particles: weigh 30 parts of adsorbed abrasives and 13 parts of binder by weight.

The adsorbed abrasive is original, irregular abrasive raw material. The abrasive used in this embodiment is bamboo charcoal, that is, 25 parts of bamboo charcoal are weighed. The adhesive uses a low-viscosity adhesive to avoid affecting the adsorption of bamboo charcoal due to excessive viscosity. In this embodiment, starch water is used as the adhesive, that is, 13 parts of starch water is taken. And the mixing ratio of starch and water is 1-5:10-20. Pour 25 parts of bamboo charcoal and 13 parts of starch water into the granulation equipment, set the working temperature of the granulation equipment at 50℃-60℃, start the granulation equipment, and produce adsorbed abrasive particles with a particle size of 100-400 μm. .

Step 2: Mix the prepared adsorbed abrasive particles and the weighted material so that the weighted material and the adsorbed abrasive particles are combined to form the weighted abrasive particles.

The weight-added material is a powdery material with a relatively high density. In the embodiment, copper powder is used as the weight-added material. Take 18 parts of the copper powder and put the adsorbed abrasive particles produced in step 1 and 18 parts of the copper powder into the mixing equipment at the same time. , set the speed of the mixing equipment to 50-90 rpm, start the mixing equipment, and rotate it for 1-1.5 hours, so that the copper powder can fully contact the adsorbed abrasive particles, complete the adsorption, and produce heavy abrasive particles.

Step 3: Put the heavy abrasive particles, defoaming agent, binding agent, polishing powder, and anti-tensile fiber into the mixing equipment for mixing.

Among them, take 30 parts of the binder, and the binder is a bio-based resin binder, that is, take 30 parts of the bio-based resin binder, and put 30 parts of the bio-based resin binder and the heavy abrasive particles prepared in step 2 into the mixing equipment , set the speed of the mixing equipment to 90-120 rpm, start the mixing equipment, rotate for 10-20 minutes, and then put 33 parts of the anti-tensile fiber into the mixing equipment. The anti-tensile fiber includes 18 parts of plant fiber strips and asbestos fiber. 15 parts of strips, continue to rotate for 20-40 minutes, and finally put 2 parts of defoaming agent and 10 parts of polishing powder into the mixing equipment, and continue to rotate for 20-40 minutes.

Step 4: Put the mixed materials into the mold and heat-press and solidify to form a bio-based abrasive tool.

During the hot-pressing forming process, the pressure is 300-600kg/cm2, the hot-pressing temperature is set at 100-200°C according to the different curing agents, and the hot-pressing time is set at 45-120 minutes according to the difference between the grinding tools.

Example 3

Please refer to Figures 1-4, which is a method for preparing bio-based grinding tools provided by the present invention, including

Step 1. Use adsorbed abrasives to make adsorbed abrasive particles: weigh 35 parts of adsorbed abrasives and 15 parts of binder by weight.

The adsorbed abrasive is original, irregular abrasive raw material. The abrasive used in this embodiment is bamboo charcoal, that is, 35 parts of bamboo charcoal are weighed. The adhesive uses a low-viscosity adhesive to avoid affecting the adsorption of bamboo charcoal due to excessive viscosity. In this embodiment, starch water is used as the adhesive, that is, 15 parts of starch water is taken. And the mixing ratio of starch and water is 1:10. Pour 35 parts of bamboo charcoal and 15 parts of starch water into the granulation equipment, set the working temperature of the granulation equipment at 50℃-60℃, start the granulation equipment, and produce adsorbed abrasive particles with a particle size of 100-400 μm. .

Step 2: Mix the prepared adsorbed abrasive particles and the weighted material so that the weighted material and the adsorbed abrasive particles are combined to form the weighted abrasive particles.

The weight-added material is a powdery material with a relatively high density. In the embodiment, copper powder is used as the weight-added material. Take 25 parts of the copper powder and put the adsorbed abrasive particles produced in step 1 and 25 parts of the copper powder into the mixing equipment at the same time. , set the speed of the mixing equipment to 50-90 rpm, start the mixing equipment, and rotate it for 1-1.5 hours, so that the copper powder can fully contact the adsorbed abrasive particles, complete the adsorption, and produce heavy abrasive particles.

Step 3: Put the heavy abrasive particles, defoaming agent, binding agent, polishing powder, and anti-tensile fiber into the mixing equipment for mixing.

Among them, take 50 parts of the binder, and the binder is a bio-based resin binder, that is, take 50 parts of the bio-based resin binder, and put 50 parts of the bio-based resin binder and the heavy abrasive particles prepared in step 2 into the mixing equipment , set the speed of the mixing equipment to 90-120 rpm, start the mixing equipment, rotate for 10-20 minutes, and then put 40 parts of the anti-tensile fiber into the mixing equipment. The anti-tensile fiber includes 25 parts of plant fiber strips and asbestos fiber. 15 parts of strips, continue to rotate for 20-40 minutes, and finally put 2 parts of defoaming agent and 10 parts of polishing powder into the mixing equipment, and continue to rotate for 20-40 minutes.

Step 4: Put the mixed materials into the mold and heat-press and solidify to form a bio-based abrasive tool.

During the hot-pressing forming process, the pressure is 300-600kg/cm2, the hot-pressing temperature is set at 100-200°C according to the different curing agents, and the hot-pressing time is set at 45-120 minutes according to the difference between the grinding tools.

Example 4

Please refer to Figures 1-4, which is a method for preparing bio-based grinding tools provided by the present invention, including

Step 1. Use adsorbed abrasives to make adsorbed abrasive particles: weigh 25 parts of adsorbed abrasives and 10 parts of binder by weight.

The adsorbed abrasive is original, irregular abrasive raw material, and the abrasive used in this embodiment is charcoal, that is, 25 parts of charcoal are weighed. The adhesive uses a low-viscosity adhesive to avoid affecting the adsorption of charcoal due to excessive viscosity. In this embodiment, starch water is used as the adhesive, that is, 10 parts of starch water is taken. And the mixing ratio of starch and water is 1:10. Pour 25 parts of charcoal and 10 parts of starch water into the granulation equipment, set the working temperature of the granulation equipment at 50°C-60°C, start the granulation equipment, and produce adsorbed abrasive particles with a particle size of 100-400 μm. .

Step 2: Mix the prepared adsorbed abrasive particles and the weighted material so that the weighted material and the adsorbed abrasive particles are combined to form the weighted abrasive particles.

The weight-added material is a powdery material with a relatively high density. In the embodiment, copper powder is used as the weight-added material. Take 10 parts of the copper powder and put the adsorbed abrasive particles produced in step 1 and 10 parts of the copper powder into the mixing equipment at the same time. , set the speed of the mixing equipment to 50-90 rpm, start the mixing equipment, and rotate it for 1-1.5 hours, so that the copper powder can fully contact the adsorbed abrasive particles, complete the adsorption, and produce heavy abrasive particles.

Step 3: Put the heavy abrasive particles, defoaming agent, binding agent, polishing powder, and anti-tensile fiber into the mixing equipment for mixing.

Among them, take 20 parts of the binder, and the binder is a bio-based resin binder, that is, take 20 parts of the bio-based resin binder, and put 20 parts of the bio-based resin binder and the heavy abrasive particles prepared in step 2 into the mixing equipment , set the speed of the mixing equipment to 90-120 rpm, start the mixing equipment, rotate for 10-20 minutes, and then put 25 parts of the anti-tensile fiber into the mixing equipment. The anti-tensile fiber includes 15 parts of plant fiber strips and asbestos fiber. 10 parts of strips, continue to rotate for 20-40 minutes, and finally put 2 parts of defoaming agent and 10 parts of polishing powder into the mixing equipment, and continue to rotate for 20-40 minutes.

Step 4: Put the mixed materials into the mold and heat-press and solidify to form a bio-based abrasive tool.

During the hot-pressing forming process, the pressure is 300-600kg/cm2, the hot-pressing temperature is set at 100-200°C according to the different curing agents, and the hot-pressing time is set at 45-120 minutes according to the difference between the grinding tools.

Example 5

Please refer to Figures 1-4, which is a method for preparing bio-based grinding tools provided by the present invention, including

Step 1. Use adsorbed abrasives to make adsorbed abrasive particles: weigh 30 parts of adsorbed abrasives and 13 parts of binder by weight.

The adsorbed abrasive is original, irregular abrasive raw material, and the abrasive used in this embodiment is charcoal, that is, 25 parts of charcoal are weighed. The adhesive uses a low-viscosity adhesive to avoid affecting the adsorption of charcoal due to excessive viscosity. In this embodiment, starch water is used as the adhesive, that is, 13 parts of starch water is taken. And the mixing ratio of starch and water is 1-5:10-20. Pour 25 parts of charcoal and 13 parts of starch water into the granulation equipment, set the working temperature of the granulation equipment at 50°C-60°C, start the granulation equipment, and produce adsorbed abrasive particles with a particle size of 100-400 μm. .

Step 2: Mix the prepared adsorbed abrasive particles and the weighted material so that the weighted material and the adsorbed abrasive particles are combined to form the weighted abrasive particles.

The weight-added material is a powdery material with a relatively high density. In the embodiment, copper powder is used as the weight-added material. Take 18 parts of the copper powder and put the adsorbed abrasive particles produced in step 1 and 18 parts of the copper powder into the mixing equipment at the same time. , set the speed of the mixing equipment to 50-90 rpm, start the mixing equipment, and rotate it for 1-1.5 hours, so that the copper powder can fully contact the adsorbed abrasive particles, complete the adsorption, and produce heavy abrasive particles.

Step 3: Put the heavy abrasive particles, defoaming agent, binding agent, polishing powder, and anti-tensile fiber into the mixing equipment for mixing.

Among them, take 30 parts of the binder, and the binder is a bio-based resin binder, that is, take 30 parts of the bio-based resin binder, and put 30 parts of the bio-based resin binder and the heavy abrasive particles prepared in step 2 into the mixing equipment , set the speed of the mixing equipment to 90-120 rpm, start the mixing equipment, rotate for 10-20 minutes, and then put 33 parts of the anti-tensile fiber into the mixing equipment. The anti-tensile fiber includes 18 parts of plant fiber strips and asbestos fiber. 15 parts of strips, continue to rotate for 20-40 minutes, and finally put 2 parts of defoaming agent and 10 parts of polishing powder into the mixing equipment, and continue to rotate for 20-40 minutes.

Step 4: Put the mixed materials into the mold and heat-press and solidify to form a bio-based abrasive tool.

During the hot-pressing forming process, the pressure is 300-600kg/cm2, the hot-pressing temperature is set at 100-200°C according to the different curing agents, and the hot-pressing time is set at 45-120 minutes according to the difference between the grinding tools.

Example 6

Please refer to Figures 1-4, which is a method for preparing bio-based grinding tools provided by the present invention, including

Step 1. Use adsorbed abrasives to make adsorbed abrasive particles: weigh 35 parts of adsorbed abrasives and 15 parts of binder by weight.

The adsorbed abrasive is original, irregular abrasive raw material, and the abrasive used in this embodiment is charcoal, that is, 35 parts of charcoal are weighed. The adhesive uses a low-viscosity adhesive to avoid affecting the adsorption of charcoal due to excessive viscosity. In this embodiment, starch water is used as the adhesive, that is, 15 parts of starch water is taken. And the mixing ratio of starch and water is 1:10. Pour 35 parts of charcoal and 15 parts of starch water into the granulation equipment, set the working temperature of the granulation equipment at 50°C-60°C, start the granulation equipment, and produce adsorbed abrasive particles with a particle size of 100-400 μm. .

Step 2: Mix the prepared adsorbed abrasive particles and the weighted material so that the weighted material and the adsorbed abrasive particles are combined to form the weighted abrasive particles.

The weight-added material is a powdery material with a relatively high density. In the embodiment, copper powder is used as the weight-added material. Take 25 parts of the copper powder and put the adsorbed abrasive particles produced in step 1 and 25 parts of the copper powder into the mixing equipment at the same time. , set the speed of the mixing equipment to 50-90 rpm, start the mixing equipment, and rotate it for 1-1.5 hours, so that the copper powder can fully contact the adsorbed abrasive particles, complete the adsorption, and produce heavy abrasive particles.

Step 3: Put the heavy abrasive particles, defoaming agent, binding agent, polishing powder, and anti-tensile fiber into the mixing equipment for mixing.

Among them, take 50 parts of the binder, and the binder is a bio-based resin binder, that is, take 50 parts of the bio-based resin binder, and put 50 parts of the bio-based resin binder and the heavy abrasive particles prepared in step 2 into the mixing equipment , set the speed of the mixing equipment to 90-120 rpm, start the mixing equipment, rotate for 10-20 minutes, and then put 40 parts of the anti-tensile fiber into the mixing equipment. The anti-tensile fiber includes 25 parts of plant fiber strips and asbestos fiber. 15 parts of strips, continue to rotate for 20-40 minutes, and finally put 2 parts of defoaming agent and 10 parts of polishing powder into the mixing equipment, and continue to rotate for 20-40 minutes.

Step 4: Put the mixed materials into the mold and heat-press and solidify to form a bio-based abrasive tool.

During the hot-pressing forming process, the pressure is 300-600kg/cm2, the hot-pressing temperature is set at 100-200°C according to the different curing agents, and the hot-pressing time is set at 45-120 minutes according to the difference between the grinding tools.

Note: The detection method of tensile resistance adopts the existing tensile degree experimental method. The wear test is carried out by polishing over 30,000 times, and the damage rate is obtained by calculating the quality difference between the remaining material and the material before the test. Hardness was measured using existing hardness testing methods. The powder settling amount is obtained by calculating the difference between the wear mass and the settling mass. In Figure 4, the brighter parts are copper, and the lower brightness parts are adsorbed abrasive particles.

The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be concluded that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of them should be regarded as belonging to the protection scope of the present invention.

Claims (10)

1. A bio-based abrasive tool, characterized by: including 25-35 parts of adsorbed abrasives based on material weight, 10-25 parts of attached weights; 25-40 parts of anti-stretch fibers, and 10-15 parts of adhesives , 25-50 parts of binding agent, 2-5 parts of defoaming agent, 10-20 parts of polishing powder. 2. A method for preparing bio-based abrasive tools, which is characterized by: including step 1, using adsorbed abrasives to make adsorbed abrasive particles; step 2, mixing the prepared adsorbed abrasive particles and attached weight materials to make the attached weight materials and adsorbed abrasive materials The particles combine to form heavy abrasive particles; Step 3: Put the heavy abrasive particles, defoaming agent, binding agent, polishing powder, and anti-tensile fiber into the mixing equipment for mixing; Step 4: Put the mixed materials into It is hot-pressed and solidified in the mold to form a bio-based abrasive tool. 3. The bio-based abrasive preparation method according to claim 2, characterized in that: the step one includes: weighing 25-35 parts by weight of the adsorbed abrasive and 10-15 parts of the adhesive, and adding the adsorbed abrasive to Pour the adhesive and adhesive into the granulation equipment, set the working temperature of the granulation equipment at 50℃-60℃, start the granulation equipment, and then produce adsorbed abrasive particles. 4. A method for preparing bio-based grinding tools according to claim 3, characterized in that: the adhesive is starch water, and the mixing ratio of starch and water is 1-5:10-20. 5. A method for preparing bio-based abrasive tools according to claim 3, characterized in that: the adsorbed abrasive in step one is irregular bamboo charcoal particles or charcoal particles, with a particle size of 100-400 μm. 6. A method for preparing bio-based abrasive tools according to claim 3, characterized in that: the weighted material is copper powder or iron powder. 7. A method for preparing bio-based abrasive tools according to claim 2, characterized in that: the second step includes: taking 10-25 parts of the adsorbed abrasive particles and attached heavy materials produced in the first step and pouring them into the mixing equipment, and setting The rotating speed of the mixing equipment is set to 50-90 rpm, and the rotation time is 1-1.5h to produce heavy abrasive particles. 8. A method for preparing bio-based abrasive tools according to claim 2, characterized in that: the step three includes taking 20-25 parts of the heavy abrasive particles and binding agent prepared in step two and putting them into the mixing equipment, setting the mixing The rotation speed of the material equipment is 90-120 rpm. Start the mixing equipment and rotate it for 10-20 minutes. Then put 25-40 parts of the anti-tensile fiber into the mixing equipment and continue to rotate for 20-40 minutes. Finally, add 2-5 parts of the defoaming agent in turn. Put 10-20 parts of polishing powder into the mixing equipment and continue to rotate for 20-40 minutes. 9. A method for preparing bio-based abrasive tools according to claim 8, characterized in that the stretch-resistant fiber includes 15-25 parts of plant fiber strips and 10-15 parts of asbestos fiber strips. 10. A method for preparing bio-based abrasive tools according to claim 2, characterized in that: the adhesive is a bio-based resin bonding agent.