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A kind of anti-ultraviolet light aging high-density polyethylene IBC liner material and preparation method

A high-density polyethylene, anti-ultraviolet technology, applied in the field of blow molding materials, can solve the problems of difficult to meet market demand, poor anti-aging performance of products, and achieve outstanding anti-oxidation ability, anti-environmental stress cracking performance and light stability. Excellent, stable production process effect

Active Publication Date: 2018-06-05
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic enterprises have not formed a scale in the special material for IBC barrels, and the prepared products have poor anti-aging performance and various other quality reasons, which cannot meet the production needs of manufacturers.
Therefore, the special materials used in the manufacture of IBC barrels in China are mainly imported materials, which is difficult to meet market demand.

Method used

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  • A kind of anti-ultraviolet light aging high-density polyethylene IBC liner material and preparation method
  • A kind of anti-ultraviolet light aging high-density polyethylene IBC liner material and preparation method
  • A kind of anti-ultraviolet light aging high-density polyethylene IBC liner material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The preparation method of ethylene-hexene copolymerized polyethylene resin:

[0040] The diluent isobutane is always in a circulating state, inject ethylene and hexene into the loop reactor respectively, strictly control the feed ratio of ethylene and hexene, and add a pre-activated catalyst to control the reaction temperature in the reactor to 92.0±2.0 ℃, ethylene feed rate 37.5 t / h, hexene-1 / ethylene ratio 17.6 kg / t, catalyst 963T feed rate 193 kg / h, so that the melt flow rate is 5.95g / 10min and the density is 0.9448kg / m 3 , a weight average molecular weight of 280,000, a molecular weight distribution of 16.4, and an ethylene-hexene copolymerized polyethylene resin with a hexene monomer content of 0.34%.

[0041] Raw materials (parts by weight) of IBC liner material:

[0042] Ethylene Hexene Copolymerized Polyethylene Resin 100

[0043] Antioxidant 0.09

[0044] Secondary antioxidant 0.07

[0045] Light stabilizer 0.18

[0046] Among them, the antioxidant is tetr...

Embodiment 2

[0050] The preparation method of ethylene-hexene copolymerized polyethylene resin:

[0051] The diluent isobutane is always in a circulating state, inject ethylene and hexene into the loop reactor respectively, strictly control the feed ratio of ethylene and hexene, and add a pre-activated catalyst to control the reaction temperature in the reactor to 92.0±2.0 ℃, ethylene feed rate 36.3t / h, hexene-1 / ethylene ratio 18.4 kg / t, catalyst 963T feed rate 185 kg / h, so that the melt flow rate is 5.84g / 10min and the density is 0.9452kg / m 3 , a weight average molecular weight of 286,000, a molecular weight distribution of 17.7, and an ethylene-hexene copolymerized polyethylene resin with a hexene monomer content of 0.41%.

[0052] Raw materials (parts by weight) of IBC liner material:

[0053] Ethylene Hexene Copolymerized Polyethylene Resin 100

[0054] Antioxidant 0.09

[0055] Secondary antioxidant 0.07

[0056] Light stabilizer 0.18

[0057] Among them, the antioxidant is tetra...

Embodiment 3

[0061] The preparation method of ethylene-hexene copolymerized polyethylene resin:

[0062] The diluent isobutane is always in a circulating state, inject ethylene and hexene into the loop reactor respectively, strictly control the feed ratio of ethylene and hexene, and add a pre-activated catalyst to control the reaction temperature in the reactor to 92.0±2.0 ℃, ethylene feed rate 38.1t / h, hexene-1 / ethylene ratio 18.8 kg / t, catalyst 963T feed rate 204 kg / h, so that the melt flow rate is 6.10g / 10min and the density is 0.9455kg / m 3 , a weight average molecular weight of 272,000, a molecular weight distribution of 15.3, and an ethylene-hexene copolymerized polyethylene resin with a hexene monomer content of 0.42%.

[0063] Raw materials (parts by weight) of IBC liner material:

[0064] Ethylene Hexene Copolymerized Polyethylene Resin 100

[0065] Antioxidant 0.09

[0066] Secondary antioxidant 0.07

[0067] Light stabilizer 0.18

[0068] Among them, the antioxidant is tetra...

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Abstract

The invention discloses an ultraviolet-light-ageing-resistant high-intensity polyethylene IBC inner container material and a preparation method. The ultraviolet-light-ageing-resistant high-intensity polyethylene IBC inner container material is mainly prepared from, by mass, 100 parts of ethylene hexylene copolymer polyethylene resin, 0.05-0.1 part of antioxidant, 0.05-0.1 part of antioxidant aid and 0.15-0.20 part of composite light stabilizer. The invention further discloses a preparation method of the material. An IBC bucket inner container manufactured through the material is good in formability, excellent in environmental stress cracking resistance and light stability, and all mechanical properties are stable.

Description

technical field [0001] The invention relates to a blow molding material, in particular to an anti-ultraviolet light aging high-density polyethylene IBC liner material. Meanwhile, the invention also relates to a preparation method of the material. Background technique [0002] IBC (Intermediate BulkContainer) refers to a composite bulk container with a rigid plastic inner container for shipping liquids. It is mainly composed of high-density polyethylene plastic liner, plastic corner accessories, high-precision ball valve, steel tray base and guardrail Composed of steel frame and other parts, it is a new type of packaging container that can fill Class II and III dangerous goods liquids. The global IBC container has formed a series of products ranging from 1000 to 2000L and has become an indispensable product in the packaging field. As the scope of IBC applications becomes wider and wider, the demand is growing rapidly at an annual growth rate of more than 10%. After my coun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08K5/134C08K5/526C08K5/357C08F210/16C08F210/14
CPCC08F210/16C08F2800/20C08K5/1345C08K5/357C08K5/526C08L2201/08C08L2207/062C08F210/14C08F2500/04C08F2500/07C08L23/0815
Inventor 张玮钟向宏林国易志勤骆新平李伟陈仕兵
Owner CHINA PETROLEUM & CHEM CORP
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