A bio-based abrasive and method of making the same

Abstract

The application discloses a kind of bio-based abrasive, including adsorptive abrasive 25-35 parts by weight, additional weight material 10-25 parts;Tensile fiber 25-40 parts, adhesive 10-15 parts, binder 25-50 parts, defoaming agent 2-5 parts, polishing powder 10-20 parts.A kind of bio-based abrasive preparation method, including step one, using adsorptive abrasive to make adsorptive abrasive particles;Step two, the adsorptive abrasive particles and additional weight material mixed are made;Step three, additional weight abrasive particles, defoaming agent, binder, polishing powder, tensile fiber are all put into mixing equipment and mix;Step four, the mixed material is placed into mold heat pressing solidification, forms bio-based abrasive.Preparing adsorptive abrasive particles, and adsorptive abrasive particles and additional weight material are combined, additional weight abrasive particles are made, and additional weight abrasive particles can improve the sedimentation rate of wear powder, reduce the harm of dust to human body.In addition, binder uses bio-based resin binder, reduces the generation of waste gas in processing and use process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of abrasive tools, in particular to a bio-based abrasive tool and a preparation method thereof. BACKGROUND

[0002] Resin-based abrasive tools are mainly used in the industrial production processes of steel, automobile, aerospace, building materials, chemical industry, machinery, etc. due to their certain elasticity and high bonding strength, and are important processing tools used in rough, fine, and polishing grinding processes of various metal and non-metal materials, especially widely used in polishing and polishing fields.

[0003] At present, the commonly used binder of resin-based abrasive tools is phenolic resin, and the raw materials such as formaldehyde and phenol for synthesizing phenolic resin are mainly derived from non-renewable petrochemical resources. In the preparation process of traditional thermosetting resin abrasive tools, the forming and hardening process requires a long time, generally several hours, and in this process, high temperature and high pressure are required, the production cost is high, and in the curing process, harmful gases such as free formaldehyde are released, and the environmental protection performance is poor. During the use of the abrasive tool, the resin will release harmful gases such as formaldehyde, benzene, toluene, etc. when subjected to high temperature, and a large amount of toxic dust, waste, etc. will also be generated, which seriously endangers the occupational health and causes environmental pollution. SUMMARY

[0004] The present application provides a bio-based abrasive tool and a preparation method thereof to solve the problems of the prior art.

[0005] To achieve the above purpose, the technical scheme is as follows:

[0006] A bio-based abrasive tool comprises 25-35 parts of adsorbed abrasive by weight, 10-25 parts of attached weight material, 25-40 parts of tensile fiber, 10-15 parts of adhesive, 25-50 parts of binder, 2-5 parts of defoaming agent, and 10-20 parts of polishing powder.

[0007] A bio-based abrasive tool preparation method comprises the following steps: step one, preparing adsorbed abrasive particles by using adsorbed abrasive; step two, mixing the prepared adsorbed abrasive particles and attached weight material to combine the attached weight material and adsorbed abrasive particles to form attached weight abrasive particles; step three, putting the attached weight abrasive particles, defoaming agent, binder, polishing powder, and tensile fiber into a mixing device for mixing; and step four, placing the mixed material into a mold for hot pressing and curing to form a bio-based abrasive tool.

[0008] Further, the step one comprises: weighing 25-35 parts of adsorbed abrasive and 10-15 parts of adhesive, pouring the adsorbed abrasive and adhesive into a granulating device, setting the working temperature of the granulating device at 50-60℃, and starting the granulating device to prepare adsorbed abrasive particles.

[0009] Furthermore, the adhesive is starch water, and the mixing ratio of starch and water is 1-5:10-20.

[0010] Furthermore, the adsorbent abrasive in step one is irregular bamboo charcoal particles or wood charcoal particles.

[0011] Furthermore, the particle size of the adsorbed abrasive particles is 100-400 μm.

[0012] Further, step two includes: taking 10-25 parts of the adsorbent abrasive particles and weighted material prepared in step one and pouring them into a mixing device, setting the rotation speed of the mixing device to 50-90 revolutions per minute and the rotation time to 1-1.5 hours.

[0013] Further, step three includes taking 20-25 parts of the weighted abrasive particles and binder prepared in step two and putting them into a mixing device. The speed of the mixing device is set to 90-120 revolutions per minute. The mixing device is started and rotated for 10-20 minutes. Then, 25-40 parts of tensile fiber are added to the mixing device and the device is rotated for another 20-40 minutes. Finally, 2-5 parts of defoamer and 10-20 parts of polishing powder are added to the mixing device in sequence and the device is rotated for another 20-40 minutes.

[0014] Furthermore, the tensile-resistant fiber comprises 15-25 parts of plant fiber strips and 10-15 parts of asbestos fiber strips.

[0015] Furthermore, the binder is a bio-based resin binder.

[0016] The beneficial effects of this invention are:

[0017] This invention provides a bio-based abrasive and its preparation method. By preparing adsorbed abrasive particles and combining them with a weighting agent, weighted abrasive particles are created. These weighted abrasive particles improve the settling rate of wear powder, reducing dust harm to the human body. Simultaneously, the use of tensile-resistant fibers enhances the tensile strength of the abrasive. Furthermore, the use of a bio-based resin binder reduces waste gas generation during processing and use, ensuring the health of workers. Attached Figure Description

[0018] Figure 1 This is a flowchart of the bio-based abrasive preparation method of the present invention;

[0019] Figure 2 The bill of materials for embodiments 1-6 of this invention;

[0020] Figure 3 Performance test tables for the bio-based abrasives prepared in Examples 1-6 of this invention;

[0021] Figure 4This is a SEM image of the heavy abrasive particles used in this invention. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0023] A bio-based abrasive tool comprises, by weight, 25-35 parts of adsorbent abrasive, 10-25 parts of weighting material, 25-40 parts of tensile fiber, 10-15 parts of adhesive, 25-50 parts of binder, 2-5 parts of defoamer, and 10-20 parts of polishing powder.

[0024] Example 1

[0025] Please refer to Figures 1-4 This invention provides a method for preparing bio-based abrasives, comprising:

[0026] Step 1: Prepare adsorbent abrasive particles using adsorbent abrasive: Weigh 25 parts of adsorbent abrasive and 10 parts of binder by weight.

[0027] The abrasive material used is raw, irregular abrasive. In this embodiment, bamboo charcoal is used, specifically 25 parts of bamboo charcoal. A low-viscosity binder is used to avoid affecting the adsorption properties of the bamboo charcoal due to excessive viscosity. In this embodiment, starch water is used as the binder, specifically 10 parts of starch water. The mixing ratio of starch and water is 1:10. 25 parts of bamboo charcoal and 10 parts of starch water are poured into a granulation device. The operating temperature of the granulation device is set to 50℃-60℃, and the granulation device is started to produce abrasive particles with a particle size of 100-400μm.

[0028] Step 2: Mix the prepared adsorbent abrasive particles with the weighting material to combine the weighting material and the adsorbent abrasive particles to form weighted abrasive particles.

[0029] The weighting material is a dense powder. In this example, copper powder is used as the weighting material. Take 10 parts of copper powder and put the adsorbent abrasive particles prepared in step one and 10 parts of copper powder into the mixing equipment at the same time. Set the speed of the mixing equipment to 50-90 revolutions, start the mixing equipment, and rotate for 1-1.5 hours to allow the copper powder to come into full contact with the adsorbent abrasive particles, complete the adsorption, and produce the weighted abrasive particles.

[0030] Step 3: Add the heavy abrasive particles, defoamer, binder, polishing powder, and tensile fiber into the mixing equipment for mixing.

[0031] Take 20 parts of binder, which is a bio-based resin binder. Take 20 parts of bio-based resin binder and put the 20 parts of bio-based resin binder and the weighted abrasive particles prepared in step two into the mixing equipment. Set the speed of the mixing equipment to 90-120 revolutions, start the mixing equipment and rotate for 10-20 minutes. Then put 25 parts of tensile fiber into the mixing equipment. The tensile fiber includes 15 parts of plant fiber strips and 10 parts of asbestos fiber strips. Continue to rotate for 20-40 minutes. Finally, put 2 parts of defoamer and 10 parts of polishing powder into the mixing equipment in sequence and continue to rotate for 20-40 minutes.

[0032] Step 4: Place the mixed materials into a mold and heat-press to solidify, forming a bio-based mold.

[0033] During the hot pressing process, the pressure is 300-600 kg / cm2, the hot pressing temperature is set at 100-200℃ depending on the curing agent, and the hot pressing time is set at 45-120 min depending on the mold.

[0034] Example 2

[0035] Please refer to Figures 1-4 This invention provides a method for preparing bio-based abrasives, comprising:

[0036] Step 1: Prepare adsorbent abrasive particles using adsorbent abrasive: Weigh 30 parts of adsorbent abrasive and 13 parts of binder by weight.

[0037] The abrasive material used is raw, irregular abrasive. In this embodiment, bamboo charcoal is used, specifically 25 parts of bamboo charcoal. A low-viscosity binder is used to avoid affecting the adsorption properties of the bamboo charcoal due to excessive viscosity. In this embodiment, starch water is used as the binder, specifically 13 parts of starch water. The mixing ratio of starch to water is 1-5:10-20. The 25 parts of bamboo charcoal and 13 parts of starch water are poured into a granulation device. The operating temperature of the granulation device is set to 50℃-60℃, and the granulation device is started to produce abrasive particles with a particle size of 100-400μm.

[0038] Step 2: Mix the prepared adsorbent abrasive particles with the weighting material to combine the weighting material and the adsorbent abrasive particles to form weighted abrasive particles.

[0039] The weighting material is a dense powder. In this example, copper powder is used as the weighting material. Take 18 parts of copper powder and put the adsorbent abrasive particles prepared in step one and 18 parts of copper powder into the mixing equipment at the same time. Set the speed of the mixing equipment to 50-90 revolutions, start the mixing equipment, and rotate for 1-1.5 hours to allow the copper powder to come into full contact with the adsorbent abrasive particles, complete the adsorption, and produce the weighted abrasive particles.

[0040] Step 3: Add the heavy abrasive particles, defoamer, binder, polishing powder, and tensile fiber into the mixing equipment for mixing.

[0041] Take 30 parts of binder, which is a bio-based resin binder. Take 30 parts of bio-based resin binder and put the 30 parts of bio-based resin binder and the weighted abrasive particles prepared in step two into the mixing equipment. Set the speed of the mixing equipment to 90-120 revolutions and start the mixing equipment. Rotate for 10-20 minutes. Then put 33 parts of tensile fiber into the mixing equipment. The tensile fiber includes 18 parts of plant fiber strips and 15 parts of asbestos fiber strips. Continue to rotate for 20-40 minutes. Finally, put 2 parts of defoamer and 10 parts of polishing powder into the mixing equipment in sequence and continue to rotate for 20-40 minutes.

[0042] Step 4: Place the mixed materials into a mold and heat-press to solidify, forming a bio-based mold.

[0043] During the hot pressing process, the pressure is 300-600 kg / cm2, the hot pressing temperature is set at 100-200℃ depending on the curing agent, and the hot pressing time is set at 45-120 min depending on the mold.

[0044] Example 3

[0045] Please refer to Figures 1-4 This invention provides a method for preparing bio-based abrasives, comprising:

[0046] Step 1: Prepare adsorbent abrasive particles using adsorbent abrasive: Weigh 35 parts of adsorbent abrasive and 15 parts of binder by weight.

[0047] The abrasive material used is raw, irregular abrasive. In this embodiment, bamboo charcoal is used, specifically 35 parts of bamboo charcoal. A low-viscosity binder is used to avoid affecting the adsorption properties of the bamboo charcoal due to excessive viscosity. In this embodiment, starch water is used as the binder, specifically 15 parts of starch water. The mixing ratio of starch to water is 1:10. The 35 parts of bamboo charcoal and 15 parts of starch water are poured into a granulation device. The operating temperature of the granulation device is set to 50℃-60℃, and the granulation device is started to produce abrasive particles with a particle size of 100-400μm.

[0048] Step 2: Mix the prepared adsorbent abrasive particles with the weighting material to combine the weighting material and the adsorbent abrasive particles to form weighted abrasive particles.

[0049] The weighting material is a dense powder. In this example, copper powder is used as the weighting material. Take 25 parts of copper powder and put the adsorbent abrasive particles prepared in step one and 25 parts of copper powder into the mixing equipment at the same time. Set the speed of the mixing equipment to 50-90 revolutions per minute. Start the mixing equipment and rotate for 1-1.5 hours to allow the copper powder to come into full contact with the adsorbent abrasive particles and complete the adsorption, thus producing the weighted abrasive particles.

[0050] Step 3: Add the heavy abrasive particles, defoamer, binder, polishing powder, and tensile fiber into the mixing equipment for mixing.

[0051] Take 50 parts of binder, which is a bio-based resin binder. Take 50 parts of bio-based resin binder and put the 50 parts of bio-based resin binder and the weighted abrasive particles prepared in step two into the mixing equipment. Set the speed of the mixing equipment to 90-120 rpm, start the mixing equipment and rotate for 10-20 minutes. Then put 40 parts of tensile fiber into the mixing equipment. The tensile fiber includes 25 parts of plant fiber strips and 15 parts of asbestos fiber strips. Continue to rotate for 20-40 minutes. Finally, put 2 parts of defoamer and 10 parts of polishing powder into the mixing equipment in sequence and continue to rotate for 20-40 minutes.

[0052] Step 4: Place the mixed materials into a mold and heat-press to solidify, forming a bio-based mold.

[0053] During the hot pressing process, the pressure is 300-600 kg / cm2, the hot pressing temperature is set at 100-200℃ depending on the curing agent, and the hot pressing time is set at 45-120 min depending on the mold.

[0054] Example 4

[0055] Please refer to Figures 1-4 This invention provides a method for preparing bio-based abrasives, comprising:

[0056] Step 1: Prepare adsorbent abrasive particles using adsorbent abrasive: Weigh 25 parts of adsorbent abrasive and 10 parts of binder by weight.

[0057] The abrasive material used is raw, irregular abrasive. In this embodiment, charcoal is used, specifically 25 parts of charcoal. A low-viscosity binder is used to avoid affecting the adsorption properties of the charcoal due to excessive viscosity. In this embodiment, starch water is used as the binder, specifically 10 parts of starch water. The mixing ratio of starch and water is 1:10. 25 parts of charcoal and 10 parts of starch water are poured into a granulation device. The operating temperature of the granulation device is set to 50℃-60℃, and the granulation device is started to produce abrasive particles with a particle size of 100-400μm.

[0058] Step 2: Mix the prepared adsorbent abrasive particles with the weighting material to combine the weighting material and the adsorbent abrasive particles to form weighted abrasive particles.

[0059] The weighting material is a dense powder. In this example, copper powder is used as the weighting material. Take 10 parts of copper powder and put the adsorbent abrasive particles prepared in step one and 10 parts of copper powder into the mixing equipment at the same time. Set the speed of the mixing equipment to 50-90 revolutions, start the mixing equipment, and rotate for 1-1.5 hours to allow the copper powder to come into full contact with the adsorbent abrasive particles, complete the adsorption, and produce the weighted abrasive particles.

[0060] Step 3: Add the heavy abrasive particles, defoamer, binder, polishing powder, and tensile fiber into the mixing equipment for mixing.

[0061] Take 20 parts of binder, which is a bio-based resin binder. Take 20 parts of bio-based resin binder and put the 20 parts of bio-based resin binder and the weighted abrasive particles prepared in step two into the mixing equipment. Set the speed of the mixing equipment to 90-120 revolutions, start the mixing equipment and rotate for 10-20 minutes. Then put 25 parts of tensile fiber into the mixing equipment. The tensile fiber includes 15 parts of plant fiber strips and 10 parts of asbestos fiber strips. Continue to rotate for 20-40 minutes. Finally, put 2 parts of defoamer and 10 parts of polishing powder into the mixing equipment in sequence and continue to rotate for 20-40 minutes.

[0062] Step 4: Place the mixed materials into a mold and heat-press to solidify, forming a bio-based mold.

[0063] During the hot pressing process, the pressure is 300-600 kg / cm2, the hot pressing temperature is set at 100-200℃ depending on the curing agent, and the hot pressing time is set at 45-120 min depending on the mold.

[0064] Example 5

[0065] Please refer to Figures 1-4 This invention provides a method for preparing bio-based abrasives, comprising:

[0066] Step 1: Prepare adsorbent abrasive particles using adsorbent abrasive: Weigh 30 parts of adsorbent abrasive and 13 parts of binder by weight.

[0067] The abrasive material used is raw, irregular abrasive. In this embodiment, charcoal is used, specifically 25 parts of charcoal. A low-viscosity binder is used to avoid affecting the adsorption properties of the charcoal due to excessive viscosity. In this embodiment, starch water is used as the binder, specifically 13 parts of starch water. The mixing ratio of starch and water is 1-5:10-20. 25 parts of charcoal and 13 parts of starch water are poured into a granulation device. The operating temperature of the granulation device is set to 50℃-60℃, and the granulation device is started to produce abrasive particles with a particle size of 100-400μm.

[0068] Step 2: Mix the prepared adsorbent abrasive particles with the weighting material to combine the weighting material and the adsorbent abrasive particles to form weighted abrasive particles.

[0069] The weighting material is a dense powder. In this example, copper powder is used as the weighting material. Take 18 parts of copper powder and put the adsorbent abrasive particles prepared in step one and 18 parts of copper powder into the mixing equipment at the same time. Set the speed of the mixing equipment to 50-90 revolutions, start the mixing equipment, and rotate for 1-1.5 hours to allow the copper powder to come into full contact with the adsorbent abrasive particles, complete the adsorption, and produce the weighted abrasive particles.

[0070] Step 3: Add the heavy abrasive particles, defoamer, binder, polishing powder, and tensile fiber into the mixing equipment for mixing.

[0071] Take 30 parts of binder, which is a bio-based resin binder. Take 30 parts of bio-based resin binder and put the 30 parts of bio-based resin binder and the weighted abrasive particles prepared in step two into the mixing equipment. Set the speed of the mixing equipment to 90-120 revolutions and start the mixing equipment. Rotate for 10-20 minutes. Then put 33 parts of tensile fiber into the mixing equipment. The tensile fiber includes 18 parts of plant fiber strips and 15 parts of asbestos fiber strips. Continue to rotate for 20-40 minutes. Finally, put 2 parts of defoamer and 10 parts of polishing powder into the mixing equipment in sequence and continue to rotate for 20-40 minutes.

[0072] Step 4: Place the mixed materials into a mold and heat-press to solidify, forming a bio-based mold.

[0073] During the hot pressing process, the pressure is 300-600 kg / cm2, the hot pressing temperature is set at 100-200℃ depending on the curing agent, and the hot pressing time is set at 45-120 min depending on the mold.

[0074] Example 6

[0075] Please refer to Figures 1-4 This invention provides a method for preparing bio-based abrasives, comprising:

[0076] Step 1: Prepare adsorbent abrasive particles using adsorbent abrasive: Weigh 35 parts of adsorbent abrasive and 15 parts of binder by weight.

[0077] The abrasive material used is raw, irregular abrasive. In this embodiment, charcoal is used, specifically 35 parts of charcoal. A low-viscosity binder is used to avoid affecting the adsorption properties of the charcoal due to excessive viscosity. In this embodiment, starch water is used as the binder, specifically 15 parts of starch water. The mixing ratio of starch and water is 1:10. 35 parts of charcoal and 15 parts of starch water are poured into a granulation device. The operating temperature of the granulation device is set to 50℃-60℃, and the granulation device is started to produce abrasive particles with a particle size of 100-400μm.

[0078] Step 2: Mix the prepared adsorbent abrasive particles with the weighting material to combine the weighting material and the adsorbent abrasive particles to form weighted abrasive particles.

[0079] The weighting material is a dense powder. In this example, copper powder is used as the weighting material. Take 25 parts of copper powder and put the adsorbent abrasive particles prepared in step one and 25 parts of copper powder into the mixing equipment at the same time. Set the speed of the mixing equipment to 50-90 revolutions per minute. Start the mixing equipment and rotate for 1-1.5 hours to allow the copper powder to come into full contact with the adsorbent abrasive particles and complete the adsorption, thus producing the weighted abrasive particles.

[0080] Step 3: Add the heavy abrasive particles, defoamer, binder, polishing powder, and tensile fiber into the mixing equipment for mixing.

[0081] Take 50 parts of binder, which is a bio-based resin binder. Take 50 parts of bio-based resin binder and put the 50 parts of bio-based resin binder and the weighted abrasive particles prepared in step two into the mixing equipment. Set the speed of the mixing equipment to 90-120 rpm, start the mixing equipment and rotate for 10-20 minutes. Then put 40 parts of tensile fiber into the mixing equipment. The tensile fiber includes 25 parts of plant fiber strips and 15 parts of asbestos fiber strips. Continue to rotate for 20-40 minutes. Finally, put 2 parts of defoamer and 10 parts of polishing powder into the mixing equipment in sequence and continue to rotate for 20-40 minutes.

[0082] Step 4: Place the mixed materials into a mold and heat-press to solidify, forming a bio-based mold.

[0083] During the hot pressing process, the pressure is 300-600 kg / cm2, the hot pressing temperature is set at 100-200℃ depending on the curing agent, and the hot pressing time is set at 45-120 min depending on the mold.

[0084] Note: Tensile strength is tested using existing tensile testing methods. Wear testing is performed using a grinding process exceeding 30,000 RPM; the damage rate is obtained by calculating the mass difference between the remaining material and the material before testing. Hardness is tested using existing hardness testing methods. Powder settling is obtained by calculating the difference between the wear mass and the settling mass. Figure 4 The brighter areas are copper, while the darker areas contain adsorbed abrasive particles.

[0085] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A bio-based abrasive, characterized in that: Includes the following components calculated by weight of the material: The abrasive material consists of 25-35 parts of irregular bamboo charcoal or wood charcoal particles. Include 10-25 parts of heavy material, which is copper powder or iron powder; 25-40 parts of tensile fiber, including 15-25 parts of plant fiber strips and 10-15 parts of asbestos fiber strips; 10-15 parts of adhesive, which is starch water, with a starch to water mixing ratio of 1-5:10-20; 25-50 parts of binder, which is a bio-based resin binder; 2-5 parts defoamer, 10-20 parts polishing powder; In this process, adsorbent abrasive and binder are poured into a granulation device to produce adsorbent abrasive particles with a particle size of 100-400μm. The adsorbent abrasive particles are then mixed with a weighting material to form weighted abrasive particles.

2. A method for preparing a bio-based abrasive, characterized in that: The process includes: Step 1, using adsorbent abrasive to produce adsorbent abrasive particles; Step 2, mixing the produced adsorbent abrasive particles with a weighting material to combine the weighting material and adsorbent abrasive particles to form weighted abrasive particles; Step 3, adding the weighted abrasive particles, defoamer, binder, polishing powder, and tensile fiber into a mixing device for mixing; and Step 4, placing the mixed material into a mold and hot-pressing it to solidify it, forming a bio-based abrasive. Step one includes: weighing 25-35 parts by weight of the adsorbent abrasive and 10-15 parts by weight of the binder, pouring the adsorbent abrasive and binder into the granulation equipment, and setting the operating temperature of the granulation equipment to 50℃. At 60℃, start the granulation equipment to produce adsorbent abrasive particles. The adsorbent abrasive is irregular bamboo charcoal particles or wood charcoal particles with a particle size of 100-400 μm. Step two includes: taking 10-25 parts of the adsorbent abrasive particles and weighting material prepared in step one and pouring them into a mixing device, setting the rotation speed of the mixing device to 50-90 revolutions per minute and the rotation time to 1-1.5 hours; the weighting material is copper powder or iron powder. Step three includes taking the weighted abrasive particles prepared in step two and binder 20. Add 25 parts to the mixing equipment, set the mixing equipment speed to 90-120 rpm, start the mixing equipment, and rotate for 10-20 minutes. Then add 25-40 parts of tensile fiber to the mixing equipment and continue rotating for 20-40 minutes. Finally, add 2-5 parts of defoamer and 10-20 parts of polishing powder to the mixing equipment in sequence and continue rotating for 20-40 minutes. The binder is a bio-based resin binder. The tensile fiber includes 15-25 parts of plant fiber strips and 10-15 parts of asbestos fiber strips. In step four, the hot-press curing pressure is 300-600 kg / cm², the temperature is 100-200℃, and the curing time is 45-120 min.

3. The method for preparing a bio-based abrasive according to claim 2, characterized in that: The adhesive is starch water, and the mixing ratio of starch and water is 1-5:10-20.

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