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Special antioxidant material for plastic tray and preparation method thereof

A technology of anti-oxidation plastics and special materials, applied in the field of plastic pallets, can solve the problems of carbon nanotubes with large aspect ratio and specific surface area, unable to show excellent performance, difficult to disperse evenly, etc., to achieve good dimensional stability and oxidation induction. The effect of prolonging time and improving high temperature resistance

Inactive Publication Date: 2017-06-06
BEIJING KEHUITONG WISDOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, there are very few active groups on the surface of carbon fibers and carbon nanotubes, and the interaction with polymer material groups is very weak, and the aspect ratio and specific surface area of ​​carbon nanotubes are large, so it is difficult to polymerize them when they are used to prepare polymer composites. Evenly dispersed in the material, easy to agglomerate, unable to reflect its excellent performance

Method used

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  • Special antioxidant material for plastic tray and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 Preparation of raw materials

[0038] 1. Preparation of calcium fruit fiber:

[0039] The preparation method of the calcium fruit fiber includes the following steps: uniformly mixing fresh calcium fruit stems, calcium fruit leaves and waste wood chips at a mass ratio of 9:9:4, crushing, adding water of 1 times the mass of the crushed material, room temperature 300W, Ultrasonic extraction at 40KHz for 12min, then high-voltage pulsed electric field treatment for 12min under the conditions of electric field strength 30kV / cm, pulse time 500μs, and pulse frequency 300Hz; adjust the pH to 8, add 0.2% biological enzymes of the mixture mass, and enzymatically digest at 55℃ 12min; the enzymatic hydrolysate is concentrated under reduced pressure to 50% solid content, put into a microwave dryer at 2000W, 140℃ for intermittent drying, so that the moisture reaches 9%, and then pulverize to a particle size of 0.5mm, add the mass of pulverized material Mix 0.3% sodium bicarbonat...

Embodiment 2

[0051] A special material for anti-oxidation plastic pallets, mainly prepared from the following parts by weight: 130 parts of high-density polyethylene, 10 parts of calcium fruit fiber, 5 parts of modified nano-carbon, 3 parts of anti-aging agent, 2 parts of ultraviolet absorber , 1 part of coupling agent, 0.8 part of nucleating agent, 0.8 part of lubricant, 0.7 part of compound antioxidant.

[0052] The composite antioxidant is antioxidant 1010, antioxidant 168, and biological antioxidants evenly mixed in a mass ratio of 0.2:0.4:3;

[0053] The preparation method includes the following steps: First, accurately weigh the raw materials according to the formula, and according to the principle of equal increment method, the power of the mixture per kilogram is 0.30kW while mixing. After the mixing is uniform, the thickness of the mixture layer is controlled to 8cm. Then, it was dried at 110°C for 30 minutes, and then loaded into a twin-screw extruder, extruded, pelletized, and dried ...

Embodiment 3

[0055] A special material for anti-oxidation plastic trays, mainly prepared from the following parts by weight: 10 parts by weight of high-density polyethylene, 8 parts of calcium fruit fiber, 4 parts of modified nano-carbon, 2 parts of anti-aging agent, 1 part of ultraviolet absorber , 0.8 part of coupling agent, 0.6 part of nucleating agent, 0.6 part of lubricant, 0.6 part of compound antioxidant.

[0056] The composite antioxidant is antioxidant 1010, antioxidant 168, and biological antioxidants evenly mixed in a mass ratio of 0.1:0.3:2;

[0057] The preparation method includes the following steps: First, accurately weigh the raw materials according to the formula, and according to the principle of equal increment method, mix the materials with the power of 0.25kW per kilogram of the mixture. After the mixing is uniform, the thickness of the mixture layer is controlled to 5cm. Then, it was dried at 100°C for 20 minutes, and then put into a twin-screw extruder, extruded, pelletiz...

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Abstract

The invention discloses a special antioxidant material for a plastic tray and a preparation method thereof and belongs to the technical field of manufacture of trays. By taking high density polyethylene as a main raw material, types and formula of the raw material are optimized, and the environmental-friendly special antioxidant material for the plastic tray which is good in service performance can be finally prepared by scientifically compounding calcium-fruit fibers, modified nanocarbon and a compound antioxidant which have a synergistic effect with other processing aids, wherein the calcium-fruit fibers can obviously improve the impact resistance of the special material for the plastic tray, is easily biodegradable and reduces the production cost; the modified nanocarbon can obviously improve the high-temperature-resisting, antistatic and anti-shrinkage properties of the special material for the plastic tray as well as relative tension load, strength, toughness and elastic modulus; and the compound antioxidant can effectively improve the oxidization resistance of the special material for the plastic tray. The special material is quite suitable for producing and processing the tray, thereby exploring a novel path for production and processing of the tray.

Description

Technical field [0001] The invention relates to a plastic tray, in particular to a special material for an anti-oxidation plastic tray and a preparation method thereof. Background technique [0002] A pallet is a medium that transforms static goods into dynamic goods, a loading platform, and a movable platform, or a movable ground. Even if the goods that lose their flexibility on the ground, they immediately gain mobility as soon as they are loaded on the pallet, and become flexible mobile goods, because the goods on the pallet are in a ready state for movement at any time. This dynamic loading and unloading method consisting of pallets as basic tools is called pallet work. Pallet operation can not only significantly improve the loading and unloading effect, but its implementation has changed the form of warehouse buildings, the structure of ships, the loading and unloading facilities of railways and other modes of transportation, and the management organization. In terms of pa...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L97/02C08L1/02C08K13/02C08K7/24C08K7/06C08K5/134C08K5/526
CPCC08L23/06C08K2201/011C08K2201/014C08L2201/04C08L2201/06C08L2201/08C08L2205/025C08L2205/035C08L2205/16C08L2205/24C08L2207/062
Inventor 邵素英
Owner BEIJING KEHUITONG WISDOM SCI & TECH CO LTD
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