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Cold-resistant plastic barrel and preparation method thereof

A plastic barrel and cold-resistant technology, applied in the field of plastic packaging containers, can solve the problems of narrow molecular weight distribution, poor impact strength and elongation at break, etc., and achieve the effects of good compatibility, enhanced tensile strength, and good mildew resistance.

Active Publication Date: 2020-12-01
青岛邦德化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

HDPE is non-toxic, tasteless and odorless white particles with a melting point of about 130°C and a relative density of 0.941-0.960g / cm 3 , it has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength; but due to its low molecular weight and narrow molecular weight distribution, its impact strength and elongation at break slightly worse

Method used

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  • Cold-resistant plastic barrel and preparation method thereof
  • Cold-resistant plastic barrel and preparation method thereof
  • Cold-resistant plastic barrel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1: A kind of cold-resistant plastic barrel is prepared by the following method:

[0046] (1) Premix: 70kg density is 0.936g / cm 3 , high-density polyethylene with a melt index of 1.4g / 10min, and a density of 0.916g / cm in 20kg 3 , linear low density polyethylene with a melt index of 1.0g / 10min, 15kg of maleic anhydride grafted high density polyethylene with a graft rate of 0.8%-1.2%, 6kg of high degree of polymerization polyvinyl chloride and 7kg of ethylene-vinyl acetate The copolymer is placed in a high-speed mixer, stirred at a temperature of 110°C for 30 minutes, and mixed evenly;

[0047] (2) Mixed material: add 0.8kg ultraviolet absorber UV-531, 0.36kg antioxidant 264, 0.84kg antioxidant DLTP, 0.5kg dioctyl phthalate, 0.5kg epoxy four to the premixed material Dioctyl hydrophthalate, 1.5kg epoxy butyl oleate and 6kg silicon micropowder with a particle size of 0.2-0.3μm were stirred at a temperature of 150°C for 35 minutes and mixed uniformly;

[0048] (...

Embodiment 2

[0051] Embodiment 2: A kind of cold-resistant plastic barrel is prepared by the following method:

[0052] (1) Premix: 60kg density is 0.936g / cm 3 , high-density polyethylene with a melt index of 1.4g / 10min, and a density of 0.916g / cm in 15kg 3 , linear low-density polyethylene with a melt index of 1.0g / 10min, 10kg of maleic anhydride grafted high-density polyethylene with a graft rate of 0.8%-1.2%, 5kg of high-polymerization polyvinyl chloride and 6kg of ethylene-vinyl acetate The copolymer is placed in a high-speed mixer, stirred at a temperature of 100°C for 40 minutes, and mixed evenly;

[0053] (2) Mixed material: add 0.5kg ultraviolet absorber UV-531, 0.3kg antioxidant 264, 0.7kg antioxidant DLTP, 0.4kg dioctyl phthalate, 0.4kg epoxy four to the premixed material Dioctyl hydrophthalate, 1.2kg epoxy butyl oleate, and 5kg silicon micropowder with a particle size of 0.2-0.3 μm were stirred at a temperature of 140°C for 40 minutes, and mixed uniformly;

[0054] (3) Extrus...

Embodiment 3

[0057] Embodiment 3: A kind of cold-resistant plastic barrel is prepared by the following method:

[0058] (1) Premix: 80kg density is 0.936g / cm 3 , high-density polyethylene with a melt index of 1.4g / 10min, and a density of 0.916g / cm in 25kg 3 , linear low-density polyethylene with a melt index of 1.0g / 10min, 20kg of maleic anhydride grafted high-density polyethylene with a graft rate of 0.8%-1.2%, 7kg of high-polymerization polyvinyl chloride and 8kg of ethylene-vinyl acetate The copolymer is placed in a high-speed mixer, stirred at a temperature of 120°C for 20 minutes, and mixed evenly;

[0059] (2) Mixed material: add 1.0kg ultraviolet absorber UV-531, 0.45kg antioxidant 264, 1.05kg antioxidant DLTP, 0.6kg dioctyl phthalate, 0.6kg epoxy four to the premixed material Dioctyl hydrophthalate, 1.8kg epoxy butyl oleate and 7kg silicon micropowder with a particle size of 0.2-0.3μm were stirred at a temperature of 160°C for 30 minutes and mixed uniformly;

[0060] (3) Extrusi...

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Abstract

The invention discloses a cold-resistant plastic bucket and a preparation method thereof, and belongs to the technical field of a plastic packaging container. The cold-resistant plastic bucket is characterized in that the cold-resistant plastic bucket is prepared from the components in parts by weight: 60 to 80 parts of high-density polyethylene, 15 to 25 parts of linear low-density polyethylene,10 to 20 parts of maleic anhydride grafted high-density polyethylene, 5 to 7 parts of high-polymerization-degree polyvinyl chloride, 6 to 8 parts of ethylene-vinyl acetate copolymer, 0.5 to 1.0 part of ultraviolet absorption agent, 1 to 1.5 parts of antioxidant, 2 to 3 parts of plasticizer and 5 to 7 parts of silica power; the high-density polyethylene has a density of 0.936 g / cm<3> and a melt index of 1.4 g / 10 min; the linear low-density polyethylene has a density of 0.920 g / cm<3> and a melt index of 1.0 g / 10 min. The invention reaches the technical effect of enabling the polyethylene plasticbucket to also have excellent printing performance when having cold resistance.

Description

technical field [0001] The invention relates to the technical field of plastic packaging containers, more specifically, it relates to a cold-resistant plastic bucket and a preparation method thereof. Background technique [0002] Hollow blow molding containers are also called plastic containers, which are processed by hollow molding methods. There are open plastic barrels, cans and closed plastic barrels, cans and open plastic barrels. The materials used to prepare plastic barrels are mostly polyethylene (PE), Polypropylene (PP) and other thermoplastics are usually made by blow molding and injection molding, and are mostly used to hold liquid and solid items in industries such as chemicals, pesticides, medicine, food, hardware and electronics, and electromechanical industries. [0003] For plastic products, the toughness of plastics decreases and brittleness increases in deep severe cold, and the application is limited; plastics work in the glass state, and the lower limit t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08L51/06C08L27/06C08K13/02C08K3/36C08K5/132C08K5/372C08K5/13C08K5/12
CPCC08K2201/003C08L23/06C08L2201/02C08L2201/08C08L2205/035C08L2207/062C08L23/0815C08L51/06C08L27/06C08L23/0853C08K13/02C08K3/36C08K5/132C08K5/372C08K5/13C08K5/12
Inventor 国基
Owner 青岛邦德化工有限公司
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