Reinforced nylon plastic particle and manufacturing method thereof

Abstract

The invention discloses a reinforced nylon plastic particle and a manufacturing method thereof. The reinforced nylon plastic particle is characterized by comprising the following components in percentage by weight: 45-50% of nylon 6, 48-53% of silicon dioxide, 0.5-1% of a flowable agent, 0.1-0.5% of an antioxidant and 0.1-0.5% of a nucleating agent. The reinforced nylon plastic particle has the effects of high impact resistance, high modulus and high hardness.

Description

Technical Field

[0001] The invention relates to a plastic particle, and more particularly to a reinforced nylon plastic particle and a preparation method thereof. Background Art

[0002] Plastic particles refer to granular plastics, which are generally divided into more than 200 types and subdivided into thousands of types. Common plastic particles include general-purpose plastics, engineering plastics, and special plastics. Currently, most plastic particles are made of polyethylene or polypropylene as raw materials, resulting in poor performance of plastic particles. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a reinforced nylon plastic particle and a method for making the same to solve the problems in the background technology.

[0004] To achieve the above object, the present invention provides a reinforced nylon plastic particle, characterized in that it is composed of the following components in weight percentage: nylon 6: 45-50%, silicon dioxide: 48-53%, flow agent 0.5-1%, antioxidant 0.1-0.5%, and nucleating agent 0.1-0.5%.

[0005] The present invention is further provided as follows: a method for preparing reinforced nylon plastic particles, characterized in that it comprises the following steps: Step 1: Take nylon 6, and then take a flow agent, an antioxidant, and a nucleating agent, add them into a mixer, the mixer speed is 800-1200 rpm, and stir for 1-3 minutes to fully mix the raw materials; Step 2: Heat the twin-screw high-torque extruder to make the temperatures: zone 1 220°C-230°C, zone 2 220°C-230°C, zone 3 220°C-230°C, zone 4 200°C-210°C, zone 5 200°C-210°C, zone 6 190°C-200°C, die head 230°C-240°C, pour the mixed material into the feeding bin of the twin-screw high-torque extruder; Step 3: Add silica fiber from the fiberglass port, turn on the vacuum pump to evacuate, and make a preliminary judgment on whether it is qualified by checking the current, the condition of the pulling rods, and the quality of the particles according to different machines; Step 4: Adjust the extruder speed to 800-1200 rpm and the feed speed to 190-230 rpm for stranding and pelletizing; Step 5: During the drawing process, the ash content of the particles is regularly tested to control the silicon dioxide error within 0.5%; Step 6: Pump the plastic particles into a homogenization barrel at a homogenization temperature of 70°C-85°C for 10-20 minutes.

[0006] The present invention is further configured as follows: the flow agent is calcium stearate; the antioxidant is antioxidant 1010, antioxidant 168, and antioxidant 626; and the nucleating agent is 2,2,-methylenebis(4.6-di-tert-butylphenyl) sodium phosphate.

[0007] The present invention is further configured as follows: the timing in step 4 is set at intervals of 30 minutes.

[0008] The present invention is further configured as follows: the ash detection process in step 5 is: use a scale with an accuracy of 0.01, weigh 20g of the product on a small iron plate, put it into a muffle furnace, set the temperature to 800°C, burn it for 10 minutes after reaching the set temperature, use pliers to take it out and cool it, then measure the mass and divide it by 20g to calculate the ash content. DETAILED DESCRIPTION

[0009] The invention discloses a reinforced nylon plastic particle and a preparation method thereof, which has the effects of strong impact resistance, high modulus and high hardness. Embodiment 1

[0010] A reinforced nylon plastic particle consists of the following components in percentage by weight: 45% nylon 6, 53% silicon dioxide, 1% flow agent, 0.5% antioxidant and 0.5% nucleating agent.

[0011] A method for preparing reinforced nylon plastic particles comprises the following steps: Step 1: Take nylon 6, a flow agent, an antioxidant, and a nucleating agent, add them to a mixer, set the mixer speed at 800 rpm, and stir for 3 minutes to fully mix the raw materials; Step 2: Heat the twin-screw high-torque extruder to make the temperatures: zone 1 220°C, zone 2 222°C, zone 3 220°C, zone 4 203°C, zone 5 208°C, zone 6 190, and die head 230°C, and pour the mixed material into the feeding bin of the twin-screw high-torque extruder; Step 3: Add silica fiber from the fiberglass port, turn on the vacuum pump to evacuate, and make a preliminary judgment on whether it is qualified by checking the current, the condition of the pulling rods, and the quality of the particles according to different machines; Step 4: Adjust the extruder speed to 800 rpm and the feed speed to 190 rpm for stranding and pelletizing; Step 5: During the drawing process, the ash content of the particles is regularly tested to control the silicon dioxide error within 0.5%; Step 6: Pump the plastic particles into a homogenization barrel at a homogenization temperature of 75°C for 15 minutes.

[0012] The flow agent is calcium stearate; the antioxidant is antioxidant 168; and the nucleating agent is 2,2-methylenebis(4.6-di-tert-butylphenyl) sodium phosphate.

[0013] The timing described in step 4 is 30 minutes interval.

[0014] The ash detection process described in step 5 is: use a scale with an accuracy of 0.01 to weigh 20g of the product on a small iron plate, put it into a muffle furnace, set the temperature to 800°C, burn it for 10 minutes after reaching the set temperature, use pliers to take it out and cool it, then measure the mass and divide it by 20g to calculate the ash content. Embodiment 2

[0015] A reinforced nylon plastic particle consists of the following components in percentage by weight: 47% nylon 6, 52% silicon dioxide, 0.6% flow agent, 0.2% antioxidant and 0.2% nucleating agent.

[0016] A method for preparing reinforced nylon plastic particles comprises the following steps: Step 1: Take nylon 6, and then take a flow agent, an antioxidant, and a nucleating agent, add them into a mixer, the mixer speed is 900 rpm, and stir for 1.5 minutes to fully mix the raw materials; Step 2: Heat the twin-screw high-torque extruder to make the temperatures: zone 1 221°C, zone 2 220°C, zone 3 220°C, zone 4 200°C, zone 5 205°C, zone 6 195°C, die head 232°C, and pour the mixed material into the feeding bin of the twin-screw high-torque extruder; Step 3: Add silica fiber from the fiberglass port, turn on the vacuum pump to evacuate, and make a preliminary judgment on whether it is qualified by checking the current, the condition of the pulling rods, and the quality of the particles according to different machines; Step 4: Adjust the extruder speed to 900 rpm and the feed speed to 200 rpm for stranding and pelletizing; Step 5: During the drawing process, the ash content of the particles is regularly tested to control the silicon dioxide error within 0.5%; Step 6: Pump the plastic particles into the homogenization barrel at a homogenization temperature of 73°C for 15 minutes.

[0017] The flow agent is calcium stearate; the antioxidant is antioxidant 1010; and the nucleating agent is 2,2-methylenebis(4.6-di-tert-butylphenyl) sodium phosphate.

[0018] The timing described in step 4 is 30 minutes interval.

[0019] The ash detection process described in step 5 is: use a scale with an accuracy of 0.01 to weigh 20g of the product on a small iron plate, put it into a muffle furnace, set the temperature to 800°C, burn it for 10 minutes after reaching the set temperature, use pliers to take it out and cool it, then measure the mass and divide it by 20g to calculate the ash content. Embodiment 3

[0020] A reinforced nylon plastic particle consists of the following components in percentage by weight: 48% nylon 6, 51% silicon dioxide, 0.8% flow agent, 0.1% antioxidant and 0.1% nucleating agent.

[0021] A method for preparing reinforced nylon plastic particles comprises the following steps: Step 1: Take nylon 6, and then take a flow agent, an antioxidant, and a nucleating agent, add them into a mixer, the mixer speed is 1000 rpm, and stir for 1.5 minutes to fully mix the raw materials; Step 2: Heat the twin-screw high-torque extruder to make the temperatures: zone 1 225°C, zone 2 223°C, zone 3 224°C, zone 4 207°C, zone 5 202°C, zone 6 192°C, and die head 230°C, and pour the mixed material into the feeding bin of the twin-screw high-torque extruder; Step 3: Add silica fiber from the fiberglass port, turn on the vacuum pump to evacuate, and make a preliminary judgment on whether it is qualified by checking the current, the condition of the pulling rods, and the quality of the particles according to different machines; Step 4: Adjust the extruder speed to 900 rpm and the feed speed to 200 rpm for stranding and pelletizing; Step 5: During the drawing process, the ash content of the particles is regularly tested to control the silicon dioxide error within 0.5%; Step 6: Pump the plastic particles into a homogenization barrel at a homogenization temperature of 70°C for 20 minutes.

[0022] The flow agent is calcium stearate; the antioxidant is antioxidant 1010; and the nucleating agent is 2,2-methylenebis(4.6-di-tert-butylphenyl) sodium phosphate.

[0023] The timing described in step 4 is 30 minutes interval.

[0024] The ash detection process described in step 5 is: use a scale with an accuracy of 0.01 to weigh 20g of the product on a small iron plate, put it into a muffle furnace, set the temperature to 800°C, burn it for 10 minutes after reaching the set temperature, use pliers to take it out and cool it, then measure the mass and divide it by 20g to calculate the ash content. Embodiment 4

[0025] A reinforced nylon plastic particle consists of the following components in percentage by weight: 48% nylon 6, 50% silicon dioxide, 1% flow agent, 0.5% antioxidant and 0.5% nucleating agent.

[0026] A method for preparing reinforced nylon plastic particles comprises the following steps: Step 1: Take nylon 6, a flow agent, an antioxidant, and a nucleating agent, add them to a mixer, set the mixer speed at 1200 rpm, and stir for 1 minute to fully mix the raw materials; Step 2: Heat the twin-screw high-torque extruder to make the temperatures: zone 1 227°C, zone 2 220°C, zone 3 230°C, zone 4 205°C, zone 5 208°C, zone 6 193°C, and die head 235°C, and pour the mixed material into the feeding bin of the twin-screw high-torque extruder; Step 3: Add silica fiber from the fiberglass port, turn on the vacuum pump to evacuate, and make a preliminary judgment on whether it is qualified by checking the current, the condition of the pulling rods, and the quality of the particles according to different machines; Step 4: Adjust the extruder speed to 1200 rpm and the feed speed to 230 rpm for stranding and pelletizing; Step 5: During the drawing process, the ash content of the particles is regularly tested to control the silicon dioxide error within 0.5%; Step 6: Pump the plastic particles into a homogenization barrel at a homogenization temperature of 80°C for 15 minutes.

[0027] The flow agent is calcium stearate; the antioxidant is antioxidant 1010; and the nucleating agent is 2,2-methylenebis(4.6-di-tert-butylphenyl) sodium phosphate.

[0028] The timing described in step 4 is 30 minutes interval.

[0029] The ash detection process described in step 5 is: use a scale with an accuracy of 0.01 to weigh 20g of the product on a small iron plate, put it into a muffle furnace, set the temperature to 800°C, burn it for 10 minutes after reaching the set temperature, use pliers to take it out and cool it, then measure the mass and divide it by 20g to calculate the ash content. Embodiment 5

[0030] A reinforced nylon plastic particle consists of the following components in percentage by weight: 48% nylon 6, 50% silicon dioxide, 1% flow agent, 0.5% antioxidant and 0.5% nucleating agent.

[0031] A method for preparing reinforced nylon plastic particles comprises the following steps: Step 1: Take nylon 6, and then take a flow agent, an antioxidant, and a nucleating agent, add them into a mixer, the mixer speed is 1000 rpm, and stir for 1.5 minutes to fully mix the raw materials; Step 2: Heat the twin-screw high-torque extruder to make the temperatures: zone 1 230°C, zone 2 227°C, zone 3 223°C, zone 4 206°C, zone 5 207°C, zone 6 198°C, die head 237°C-, and pour the mixed material into the feeding bin of the twin-screw high-torque extruder; Step 3: Add silica fiber from the fiberglass port, turn on the vacuum pump to evacuate, and make a preliminary judgment on whether it is qualified by checking the current, the condition of the pulling rods, and the quality of the particles according to different machines; Step 4: Adjust the extruder speed to 1000 rpm and the feed speed to 210 rpm for stranding and pelletizing; Step 5: During the drawing process, the ash content of the particles is regularly tested to control the silicon dioxide error within 0.5%; Step 6: Pump the plastic particles into a homogenization barrel at a homogenization temperature of 70°C for 20 minutes.

[0032] The flow agent is calcium stearate; the antioxidant is antioxidant 1010; and the nucleating agent is 2,2-methylenebis(4.6-di-tert-butylphenyl) sodium phosphate.

[0033] The timing described in step 4 is 30 minutes interval.

[0034] The ash detection process described in step 5 is: use a scale with an accuracy of 0.01 to weigh 20g of the product on a small iron plate, put it into a muffle furnace, set the temperature to 800°C, burn it for 10 minutes after reaching the set temperature, use pliers to take it out and cool it, then measure the mass and divide it by 20g to calculate the ash content.

[0035] Performance test table of each embodiment: Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Impact strength KJ / M² 20 18 17 19 19 Tensile strength MPa 240 235 232 230 237 Modulus MPa 15200 15100 15000 15500 15300 The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A reinforced nylon plastic particle, characterized in that: The following weight percentages of components are included: Composition: Nylon 6: 45-50%, silicon dioxide: 48-53%, flow agent 0.5-1%, antioxidant 0.1-0.5%, nucleating agent 0.1-0.5%.

2. A method for preparing reinforced nylon plastic particles, characterized in that: The following steps are involved: Step 1: Take nylon 6, and then take a flow agent, an antioxidant, and a nucleating agent, add them into a mixer, the mixer speed is 800-1200 rpm, and stir for 1-3 minutes to fully mix the raw materials; Step 2: Heat the twin-screw high-torque extruder to make the temperatures: zone 1 220-230 degrees, zone 2 220-230 degrees, zone 3 220-230 degrees, zone 4 200-210 degrees, zone 5 200-210 degrees, zone 6 190-200 degrees, and die head 230-240 degrees, and pour the mixed material into the feeding bin of the twin-screw high-torque extruder; Step 3: Add silica fiber from the fiberglass port, turn on the vacuum pump to evacuate, and make a preliminary judgment on whether it is qualified by checking the current, the condition of the pulling rods, and the quality of the particles according to different machines; Step 4: Adjust the extruder speed to 800-1200 rpm and the feed speed to 190-230 rpm for stranding and pelletizing; Step 5: During the drawing process, the ash content of the particles is regularly tested to control the silicon dioxide error within 0.5%; Step 6: Pump the plastic particles into a homogenization barrel at a homogenization temperature of 70°C-85°C for 10-20 minutes.

3. The method for producing reinforced nylon plastic particles according to claim 2, characterized in that: The flow agent is calcium stearate; the antioxidants are antioxidant 1010, antioxidant 168, and antioxidant 626; and the nucleating agent is 2,2-methylenebis(4.6-di-tert-butylphenyl) sodium phosphate.

4. The method for producing reinforced nylon plastic particles according to claim 3, characterized in that: The timing described in step 4 is 30 minutes interval.

5. The method for producing reinforced nylon plastic particles according to claim 3, characterized in that: The ash detection process described in step 5 is: use a scale with an accuracy of 0.01 to weigh 20g of the product on a small iron plate, put it into a muffle furnace, set the temperature to 800°C, burn it for 10 minutes after reaching the set temperature, use pliers to take it out and cool it, then measure the mass and divide it by 20g to calculate the ash content.