Preparation method for modified high-density polyethylene resin used for bottle cap

A high-density polyethylene and modification technology, which is applied in the field of preparation of modified high-density polyethylene resin for bottle caps, can solve the problems of general mechanical strength and easy cracking of plastic bottle caps, and achieve improved bonding effect, smooth cross-section and strengthened Effects of Using Properties

Inactive Publication Date: 2018-11-30
含山县胜发塑料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since Coca-Cola replaced aluminum caps with plastic caps in the mid-1990s, it has driven the large-scale application of plastic cap materials in packaging companies and beverage manufacturers. With the wide application of plastic bottle packaging in beverages, dairy products, daily cosmetics, medicine and other fields, the status of bottle caps has become increasingly important. The demand for HDPE bottle cap materials in my country exceeds 400,000 t / a, and most products need to be imported from Foreign imports. At present, the special materials for HDPE bottle caps sold on the market mainly include 2200JP from Thailand, C910C and C430A from South Korea’s Samsung, MB6561 from Borealis, L5202 from Lanzhou Petrochemical Company, 3000J from Yanshan Petrochemical and 5306J from Yangzi Petrochemical; Plastic bottle caps have average mechanical strength and are easy to crack

Method used

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  • Preparation method for modified high-density polyethylene resin used for bottle cap

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Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing a modified high-density polyethylene resin for bottle caps, comprising the following steps:

[0022] (1) Preparation of organic modifier:

[0023] Dissolve 4-aminopyridine in hydrochloric acid solution, stir at room temperature for 10 minutes, then lower the temperature to -1.5°C, keep it warm for 15 minutes, then raise the temperature to 8°C, keep it warm, and then dissolve sodium nitrite and phenol in a mass fraction of 8% sodium hydroxide solution to obtain a mixed solution, slowly drop the mixed solution into the hydrochloric acid solution of 4-aminopyridine, react at 8°C for 45min, and then adjust the reaction system with a 15% sodium hydroxide solution pH to 6.8, standing for 1 hour, filtering the reaction product, washing the reaction product, and drying in vacuum to obtain p-hydroxyazopyridine;

[0024] (2) Preparation of inorganic modifier:

[0025] Dissolve ammonium metavanadate in deionized water at a temperature of 80°C to prepare an...

Embodiment 2

[0036] A method for preparing a modified high-density polyethylene resin for bottle caps, comprising the following steps:

[0037] (1) Preparation of organic modifier:

[0038] Dissolve 4-aminopyridine in hydrochloric acid solution, stir at room temperature for 15 minutes, then lower the temperature to -1.5°C, keep it warm for 15 minutes, then raise the temperature to 8°C, keep it warm, and then dissolve sodium nitrite and phenol in a mass fraction of 8% sodium hydroxide solution to obtain a mixed solution, slowly drop the mixed solution into the hydrochloric acid solution of 4-aminopyridine, react at 8°C for 45min, and then adjust the reaction system with a 15% sodium hydroxide solution pH to 6.8, standing for 1 hour, filtering the reaction product, washing the reaction product, and drying in vacuum to obtain p-hydroxyazopyridine;

[0039] (2) Preparation of inorganic modifier:

[0040] Use ammonium metavanadate to dissolve in deionized water at a temperature of 80°C to pre...

Embodiment 3

[0051] A method for preparing a modified high-density polyethylene resin for bottle caps, comprising the following steps:

[0052] (1) Preparation of organic modifier:

[0053] Dissolve 4-aminopyridine in hydrochloric acid solution, stir at room temperature for 12 minutes, then lower the temperature to -1.5°C, keep it warm for 15 minutes, then raise the temperature to 8°C, keep it warm, and then dissolve sodium nitrite and phenol in a mass fraction of 8% sodium hydroxide solution to obtain a mixed solution, slowly drop the mixed solution into the hydrochloric acid solution of 4-aminopyridine, react at 8°C for 45min, and then adjust the reaction system with a 15% sodium hydroxide solution pH to 6.8, standing for 1 hour, filtering the reaction product, washing the reaction product, and drying in vacuum to obtain p-hydroxyazopyridine;

[0054] (2) Preparation of inorganic modifier:

[0055] Use ammonium metavanadate to dissolve in deionized water at a temperature of 80°C to pre...

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Abstract

The invention discloses a preparation method for modified high-density polyethylene resin used for a bottle cap, and relates to the technical field of new materials. The preparation method comprises the following steps: (1) preparation of an organic modifier; (2) preparation of an inorganic modifier; and (3) mixing and modification. The bottle cap prepared from the modified high-density polyethylene resin prepared by using the preparation method provided by the invention has better comprehensive mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a preparation method of modified high-density polyethylene resin for bottle caps. Background technique [0002] Since Coca-Cola replaced aluminum caps with plastic caps in the mid-1990s, it has driven the large-scale application of plastic cap materials in packaging companies and beverage manufacturers. With the wide application of plastic bottle packaging in beverages, dairy products, daily cosmetics, medicine and other fields, the status of bottle caps has become increasingly important. The demand for HDPE bottle cap materials in my country exceeds 400,000 t / a, and most products need to be imported from Foreign imports. At present, the special materials for HDPE bottle caps sold on the market mainly include 2200JP from Thailand, C910C and C430A from South Korea’s Samsung, MB6561 from Borealis, L5202 from Lanzhou Petrochemical Company, 3000J from Yanshan Petroc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K5/3432C08K9/02C08K9/04C08K3/04
CPCC08K3/041C08K5/3432C08K9/02C08K9/04C08L2205/24C08L2207/062C08L23/06
Inventor 纪安全
Owner 含山县胜发塑料制品有限公司
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