Easily-degradable anti-shrinkage polypropylene master batch and preparation method thereof

A polypropylene, anti-shrinkage technology, applied in the field of polypropylene masterbatch

Inactive Publication Date: 2017-05-17
NINGXIA YANCHI WEST CHANGXIANG AGRI BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem solved by the present invention is to overcome the defects of the existing polypropylene masterbatch and its preparation method, use polypropylene as the base material, optimize the type and formula of the masterbatch raw material, improve the production process, and scientifically compound the compound containing biological antioxidant Antioxidant; modified nano-carbon that can significantly improve the high temperature resistance and shrinkage resistance of polypropylene masterbatch, relative tensile load, strength, toughness and elastic modulus; can

Method used

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  • Easily-degradable anti-shrinkage polypropylene master batch and preparation method thereof
  • Easily-degradable anti-shrinkage polypropylene master batch and preparation method thereof
  • Easily-degradable anti-shrinkage polypropylene master batch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049] Example 1 Preparation of raw materials

[0050] 1. Preparation of calcium fruit fiber:

[0051] 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 7:4:1.5, and place them in an ultrasonic cleaning machine at 200W, 30KHz for 4 minutes, and drain Dry, crush, add water of 1 times the mass of the crushed material, and ultrasonically extract for 12 minutes under the conditions of 300W and 40KHz at room temperature, and then conduct high-voltage pulse electric field treatment for 12 minutes under the conditions of electric field strength of 30kV / cm, pulse time of 500μs, and pulse frequency of 300Hz; adjust the pH value 8. Add 0.2% bio-enzyme of the mixture mass, enzymolyze at 55°C for 12min; concentrate the enzymatic hydrolysate under reduced pressure to a solid content of 50%, put it in a microwave dryer at 2000W, 140°C for intermittent drying to m...

Example Embodiment

[0072] Example 2

[0073] An easily degradable, shrink-resistant polypropylene masterbatch, mainly prepared from the following parts by weight of raw materials:

[0074] 40 parts of polypropylene, 18 parts of calcium fruit fiber, 9 parts of polyethylene / winter rye peptide complex, 9 parts of modified nano carbon, 2 parts of ultraviolet absorber, 2 parts of ethylene-methyl acrylate copolymer, 1 part of anti-aging agent Parts, 1 part of tributyl citrate, 1 part of coupling agent, 0.8 part of bitter almond oil, 0.4 part of compound antioxidant;

[0075] The composite antioxidant is antioxidant 1010, antioxidant 168, and biological antioxidants evenly mixed in a mass ratio of 1.5:2:3;

[0076] The ultraviolet absorber is UV-531;

[0077] The ethylene-methyl acrylate copolymer used American DuPont EMA1125AC.

[0078] 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...

Example Embodiment

[0079] Example 3

[0080] An easily degradable, shrink-resistant polypropylene masterbatch, mainly prepared from the following parts by weight of raw materials:

[0081] 30 parts of polypropylene, 17 parts of calcium fruit fiber, 8 parts of polyethylene / winter rye peptide compound, 8 parts of modified nano carbon, 1 part of ultraviolet absorber, 1.5 parts of ethylene-methyl acrylate copolymer, 0.8 parts of anti-aging agent Parts, 0.8 parts of tributyl citrate, 0.8 parts of coupling agent, 0.6 parts of bitter almond oil, 0.3 parts of compound antioxidant;

[0082] The composite antioxidant is antioxidant 1010, antioxidant 168, and biological antioxidants evenly mixed in a mass ratio of 1:1:2;

[0083] The ultraviolet absorber is UV-531;

[0084] The ethylene-methyl acrylate copolymer preferably uses DuPont EMA1125AC.

[0085] The preparation method includes the following steps: First, accurately weigh the raw materials according to the formula, and according to the principle of equal inc...

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Abstract

The invention discloses an easily-degradable anti-shrinkage polypropylene master batch, wherein polypropylene serves as a base material, the types and the formula of the master batch are optimized, and a production process is improved. A complex antioxidant which contains a biologic antioxidant, modified nanocarbon which can obviously improve high temperature resistance, shrinkage resistance, relative tensile load, strength and toughness and elasticity modulus of the polypropylene master batch, calcium fruit fibers which can obviously improve shock resistance of the polypropylene master batch, are easily biodegradable and lower production cost, polyethylene/winter rye peptide complexes which can greatly improve low temperature resistance of the polypropylene master batch and bitter almond oil which can effectively improve lubricating property and oxidation resistance of the polypropylene master batch are scientifically compounded; the obtained compound has a synergistic effect with other processing aids; finally, the environment-friendly easily-degradable anti-shrinkage polypropylene master batch with good physical property is obtained.

Description

technical field [0001] The invention relates to a polypropylene masterbatch, in particular to an easily degradable and shrink-resistant polypropylene masterbatch and a preparation method thereof. Background technique [0002] Polypropylene is a general-purpose plastic with good comprehensive properties, and its total output has surpassed polyvinyl chloride to become the second largest general-purpose plastic after polyethylene. Main features: non-toxic, odorless, low density, strength, stiffness, hardness and heat resistance are superior to low-pressure polyethylene, high bending fatigue resistance, can be used at about 100 degrees. It has good electrical properties and high frequency Insulation is not affected by humidity, but becomes brittle at low temperature, not wear-resistant, and easy to age. Because of its notch sensitivity, low heat distortion temperature, large molding shrinkage, poor hardness and wear resistance, its application in product packaging, automobiles,...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L97/02C08L23/06C08L23/08C08L91/00C08K13/06C08K9/02C08K7/06C08K7/24C08K5/11C08K5/134C08K5/526C08H8/00C12N1/16C12P21/06C07K5/02C12R1/865
CPCC08L23/12C07K5/0215C08H8/00C08L2201/06C08L2201/08C08L2205/02C08L2205/035C12N1/16C12P21/06
Inventor 李建树
Owner NINGXIA YANCHI WEST CHANGXIANG AGRI BIOTECH
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