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Bottle cap modified plastic lining material and preparation method thereof

An inner padding and plastic technology, applied in the field of bottle caps, can solve the problems of poor sealing, poor stability, and it is difficult to meet the needs of food safety, and achieve the effect of strong sealing, high strength, and meeting the needs of food safety.

Inactive Publication Date: 2019-06-07
JIANGSU GAIZHIBAO PACKAGING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyvinylidene chloride is often used as the inner gasket of the bottle cap in the prior art, and polyvinylidene chloride has the problems of poor oxygen barrier performance, poor sealing performance and poor stability
Moreover, the hardness of polyvinylidene chloride is high, and it is difficult to meet the needs of food safety.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: The bottle cap modified plastic inner gasket of the present embodiment includes the following components in parts by weight: 42 parts of high-density polyethylene; 20 parts of polypropylene; 3 parts of phenol-free phosphite; mineral oil 4 parts; 3 parts of a mixture of dibutyltin dilaurate and dibutyltin maleate, wherein the weight ratio of dibutyltin dilaurate to dibutyltin maleate is 1:1; 4 parts of chlorinated polyethylene.

[0012] The manufacture method of the bottle cap modified plastic inner gasket of the present embodiment comprises 42 parts of high-density polyethylene; 20 parts of polypropylene; 3 parts of phenol-free phosphite; 4 parts of mineral oil; 3 parts of a mixture of dibutyltin toate, wherein the weight ratio of dibutyltin dilaurate to dibutyltin maleate is 1:1; 4 parts of chlorinated polyethylene are mixed; the temperature of the mixture is 140°C, and the melting pressure is Under the environment of 1.2MPa, after passing through the twi...

Embodiment 2

[0014] Embodiment 2: The bottle cap modified plastic inner gasket of the present embodiment includes the following components in parts by weight: 63 parts of high-density polyethylene; 24 parts of polypropylene; 5 parts of low-phenolic phosphite; mineral oil 6 parts; 5 parts of a mixture of dibutyltin dilaurate and dibutyltin maleate, wherein the weight ratio of dibutyltin dilaurate to dibutyltin maleate is 1:2; 10 parts of chlorinated polyethylene.

[0015] The manufacture method of the bottle cap modified plastic inner gasket of the present embodiment comprises 63 parts of high-density polyethylene; 24 parts of polypropylene; 5 parts of low-phenolic phosphite; 6 parts of mineral oil; 5 parts of a mixture of dibutyltin toate, wherein the weight ratio of dibutyltin dilaurate to dibutyltin maleate is 1:2; 10 parts of chlorinated polyethylene are mixed; the mixture is placed at a temperature of 220°C and a melting pressure of Under the environment of 2.6MPa, after passing throug...

Embodiment 3

[0017] Embodiment 3: The bottle cap modified plastic inner gasket of the present embodiment includes the following components in parts by weight: 54 parts of high-density polyethylene; 22 parts of polypropylene; 4 parts of phenolic phosphite; mineral oil 5 parts; 4 parts of a mixture of dibutyltin dilaurate and dibutyltin maleate, wherein the weight ratio of dibutyltin dilaurate to dibutyltin maleate is 1:3; methyl methacrylate-butadiene-benzene 7 parts vinyl.

[0018] The manufacture method of the bottle cap modified plastic inner gasket of the present embodiment comprises 54 parts of high-density polyethylene; 22 parts of polypropylene; 4 parts of phenol-containing phosphite; 5 parts of mineral oil; dibutyltin dilaurate and horse 4 parts of a mixture of dibutyltin toate, wherein the weight ratio of dibutyltin dilaurate to dibutyltin maleate is 1:3; 7 parts of methyl methacrylate-butadiene-styrene are mixed; put the mixture into At a temperature of 180°C and a melting pressu...

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Abstract

The invention discloses a bottle cap modified plastic lining material. The bottle cap modified plastic lining material comprises the following components, in parts by weight: 42-63 parts of high-density polyethylene, 20-24 parts of polypropylene, 3-5 parts of an antioxidant, 4-6 parts of mineral oil, 3-5 parts of a heat stabilizing agent, and 4-10 parts of a toughening material. At the same time,the invention also discloses a preparation method of the bottle cap modified plastic lining material. The bottle cap modified plastic lining material provided by the invention has the advantages of high strength, tensile resistance, effective oxygen barrier performance, strong sealing properties, hardness of 62A or less, and n-hexane evaporation residues of <= 2000 mg / L, and the characteristic ofmeeting food safety requirements.

Description

technical field [0001] The invention relates to the field of bottle caps, in particular to a modified plastic inner gasket for bottle caps and a manufacturing method thereof. Background technique [0002] Polyvinylidene chloride is often used as the inner gasket of the bottle cap in the prior art, and polyvinylidene chloride has the problems of poor oxygen barrier performance, poor sealing performance and poor stability. Moreover, the hardness of polyvinylidene chloride is high, and it is also difficult to meet the needs of food safety. Contents of the invention [0003] Purpose of the invention: Aiming at the deficiencies and defects of the prior art, the present invention provides a high-strength, tensile-resistant, effective oxygen barrier, strong sealing, hardness below 62A, n-hexane evaporation residue ≤ 2000mg / L; to meet food safety needs A bottle cap modified plastic inner padding and a manufacturing method thereof. [0004] Technical solution: The bottle cap modi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L91/00C08L23/28C08L51/04C08K5/524C08K5/57
Inventor 罗平潘霞
Owner JIANGSU GAIZHIBAO PACKAGING TECH CO LTD
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