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Plastic master batch, conical double screw extruding machine, and injection moulding production processing process line

A conical twin-screw and extruder technology, applied in the field of injection molding machines, can solve the problems of inconvenient assembly and disassembly, high cost input, large body size, etc., and achieves reduction of manpower, material resources, time cost, improvement of mechanical strength and toughness, and simple preparation steps. Effect

Inactive Publication Date: 2019-05-03
林素治
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the structural design of the injection molding machine is relatively complicated, and it is inconvenient to use. The extruded plastic is easy to solidify inside the injection molding machine; the extrusion volume cannot be adjusted
[0006] However, the structure design of the product claw is complex, inconvenient to use, and costly
[0007] However, the structural design of the product conveying line is more complicated and inconvenient to use, larger in size, takes up a lot of space, and inconvenient to assemble and disassemble; it cannot be adjusted according to the actual production situation

Method used

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  • Plastic master batch, conical double screw extruding machine, and injection moulding production processing process line
  • Plastic master batch, conical double screw extruding machine, and injection moulding production processing process line
  • Plastic master batch, conical double screw extruding machine, and injection moulding production processing process line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Prepare gas-barrier biodegradable plastic masterbatches according to the following steps:

[0063] Step 1. Bamboo fiber modification: Take the bamboo fiber powder passed through a 100-mesh sieve and add it to the Pingpinga O-20 aqueous solution with a mass fraction of 0.1%, then add a 1% sodium hydroxide aqueous solution, and then heat it at 70°C Ultrasonic treatment (frequency 20KHz) for 50 minutes, placed in a drying oven at 50°C and dried until the water content is less than 2% to obtain modified bamboo fiber, bamboo fiber powder: Pingpingjia O aqueous solution: sodium hydroxide aqueous solution mass ratio It is 1:1:0.01.

[0064] Step 2: Add 4-6 parts of modified bamboo fiber obtained in step 1 to a high-speed mixer, then add 50 parts of polyhydroxyalkanoate PHA, 20 parts of polylactic acid PLA, 2.5 parts of feather powder, and 0.3 part of ring Oxygenated soybean oil, 0.4 part of dioctyl adipate, 0.7 part of glycidyl methacrylate (GMA), 0.8 part of α-alkyl cyanoacr...

Embodiment 2

[0066] Prepare gas-barrier biodegradable plastic masterbatches according to the following steps:

[0067] Step 1. Bamboo fiber modification: Take the bamboo fiber powder passed through a 200-mesh sieve and add it to the Pingpinga O aqueous solution with a mass fraction of 0.15%, then add a 2% sodium hydroxide aqueous solution, and then ultrasonicate at 60°C (Frequency 20KHz) Treat for 60 minutes, place in a drying oven at 60°C and dry until the water content is less than 2% to obtain modified bamboo fiber, bamboo fiber powder: Pingping O aqueous solution: sodium hydroxide aqueous solution mass ratio is 1 :1:0.02.

[0068] Step 2: Add 4-6 parts of modified bamboo fiber obtained in step 1 into a high-speed mixer, and then add 55 parts of polyhydroxyalkanoate PHA, 20 parts of polylactic acid PLA, 2 parts of feather powder, and 0.5 part of ring Oxygenated soybean oil, 0.2 part of dioctyl adipate, 0.5 part of glycidyl methacrylate (GMA), 0.6 part of α-alkyl cyanoacrylate, 1.0 part...

Embodiment 3

[0070] Prepare gas-barrier biodegradable plastic masterbatches according to the following steps:

[0071] Step 1. Bamboo fiber modification: Take the bamboo fiber powder passed through a 200-mesh sieve and add it to 0.1% Pingpinga O aqueous solution, then add 2% sodium hydroxide aqueous solution, and then ultrasonicate at 70°C (Frequency 20KHz) Treat for 80 minutes, place in a drying box and dry at a temperature lower than 60°C until the water content is less than 2% to obtain modified bamboo fiber, bamboo fiber powder: flat plus O aqueous solution: sodium hydroxide aqueous solution mass ratio It is 1:1:0.01.

[0072] Step 2: Add 4-6 parts of modified bamboo fiber obtained in step 1 to a high-speed mixer, and then add 51 parts of polyhydroxyalkanoate PHA, 18 parts of polylactic acid PLA, 3 parts of feather powder, and 0.5 part of ring Oxygenated soybean oil, 0.4 parts of dioctyl adipate, 0.7 parts of glycidyl methacrylate (GMA), 0.7 parts of α-alkyl cyanoacrylate, 1.2 parts o...

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Abstract

The invention discloses a plastic master batch, a conical double screw extruding machine, and an injection moulding production processing process line. The gas-barrier degradable plastic master batchis composed of, by weight, 50 to 55 parts of polyhydroxyalkanoate PHA, 15 to 20 parts of polylactic acid PLA, 2 to 3 parts of feather powder, 0.2 to 0.5 part of epoxy soybean oil, 0.2 to 0.5 part of dioctyl adipate, 0.5 to 0.8 part of glycidyl methacrylate (GMA), 0.5 to 0.8 part of alpha-alkyl cyanoacrylate, 1.0 to 1.3 parts of zinc oxide, and 1.0 to 1.5 parts of graphene. The injection moulding production processing process line using the gas-barrier degradable plastic master batch comprises an injection moulding machine Z; the back part of the injection moulding machine Z is provided with injection moulding moulds including an injection moulding mould A; a plastic product is produced using the injection moulding moulds, and then is placed on a product conveyor belt D using a product clamp C; and the product clamp C is arranged on a three dimensional rotating mechanical arm.

Description

technical field [0001] The invention relates to the technical field of injection molding machines, specifically a gas-barrier degradable plastic master batch, a conical twin-screw extruder for preparing gas-barrier degradable plastic master batches, and injecting gas-barrier degradable plastic master batches Product injection molding production and processing lines. Background technique [0002] Plastics play a huge role in the national economy and bring great convenience to people's lives. However, the raw materials for plastics are still mainly from petrochemical resources, and the characteristics that it is difficult to achieve natural degradation and recycling have also led to it becoming another An environmental killer. From the perspective of sustainable development, it is imperative to study degradable plastics. Degradable plastics refer to the addition of a certain amount of additives (such as starch, modified starch or other cellulose, photosensitizers, biodegrada...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L89/00C08L91/00C08K13/02C08K5/11C08K3/22C08K3/04C08J3/22B29C48/40B29C48/50B29C48/285B29C45/33B29C45/40B29C45/42B29C45/73B29C45/17
Inventor 林素治林燕张国辉李晓君刘长华
Owner 林素治
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