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A kind of gas barrier degradable plastic masterbatch

A technology for degrading plastics and gas barriers, which is applied in the field of injection molding production and processing lines and conical twin-screw extruders. Strength and toughness, the effect of simple preparation steps

Active Publication Date: 2021-08-03
浙江科翎新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the structure of the injection mold B lateral parting machine is complex
According to different product specifications, it cannot be flexibly adapted, and the production accuracy needs to be improved
[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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  • A kind of gas barrier degradable plastic masterbatch
  • A kind of gas barrier degradable plastic masterbatch
  • A kind of gas barrier degradable plastic masterbatch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Prepare gas-barrier biodegradable plastic masterbatches according to the following steps:

[0061] 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.

[0062]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 cyanoacryla...

Embodiment 2

[0064] Prepare gas-barrier biodegradable plastic masterbatches according to the following steps:

[0065] 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.

[0066] 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 o...

Embodiment 3

[0068] Prepare gas-barrier biodegradable plastic masterbatches according to the following steps:

[0069] 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.

[0070] 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 of ...

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Abstract

Degradable plastic masterbatch, conical twin-screw extruder, injection molding production and processing line, gas barrier degradable plastic masterbatch, composed of the following raw materials by weight: 50‑55 parts of polyhydroxyalkanoate PHA, 15‑20 Part polylactic acid PLA, 2‑3 part feather meal, 0.2‑0.5 part epoxidized soybean oil, 0.2‑0.5 part dioctyl adipate, 0.5‑0.8 part glycidyl methacrylate (GMA), 0.5‑0.8 part Alpha-Alkyl cyanoacrylate, 1.0-1.3 parts zinc oxide, 1.0-1.5 parts graphene. An injection molding production and processing line for injection molding products of degradable plastic masterbatches using gas barrier properties, including an injection molding machine Z, and an injection mold B is arranged at the rear of the injection molding machine Z; the plastic products processed by the injection mold are processed by product claws C is grasped and placed on the product conveying line D; the product claw C is installed on the 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 Patents(China)
IPC IPC(8): B29C45/03B29C45/33B29C45/40B29C45/42B29C45/17B29C45/73B29C45/72B29B9/06B29C48/92C08L67/04C08L89/00C08L91/00C08L97/02C08K5/11C08K3/22C08K3/04C08J3/22
Inventor 林素治林燕张国辉李晓君刘长华
Owner 浙江科翎新材料科技有限公司
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