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Plastic bottle cap not prone to deformation and production method thereof

A production method and plastic technology, applied in the field of bottle caps, can solve the problems of affecting the sealing performance of bottle caps, poor high temperature resistance, high product defect rate, etc., to reduce product defect rate, high temperature resistance effect, and low production cost Effect

Active Publication Date: 2017-03-22
湖南金富包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the plastic bottle caps in the prior art are usually not resistant to high temperature, or the effect of high temperature resistance is not good. This type of bottle cap is prone to deformation during the high temperature sterilization process, thereby affecting the sealing performance of the bottle cap and resulting in defective products. high rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A non-deformable plastic bottle cap is formed by injection molding of mixed plastic particles, wherein the mixed plastic particles are made of the following components in parts by weight:

[0041] 90 parts plastic

[0042] Aluminum hydroxide colloid 25 parts

[0043] 8 parts of silane coupling agent

[0044] Catalyst 1 part

[0045] Dispersant 5 parts.

[0046] In this embodiment, the plastic is PP plastic.

[0047] In this embodiment, the silane coupling agent is γ-(2,3-glycidoxy)propyltrimethoxysilane.

[0048] In this embodiment, the catalyst is sodium hydroxide solution.

[0049] In this embodiment, the molar concentration of the sodium hydroxide solution is 2 mol / L.

[0050] In this embodiment, the dispersant is polyethylene wax.

[0051] A kind of production method of above-mentioned non-deformable plastic bottle cap, it comprises the following steps:

[0052] The first step, the preparation of mixed plastic particles, includes the following steps:

[005...

Embodiment 2

[0059] A non-deformable plastic bottle cap is formed by injection molding of mixed plastic particles, wherein the mixed plastic particles are made of the following components in parts by weight:

[0060] Plastic 80 parts

[0061] Aluminum hydroxide colloid 30 parts

[0062] 10 parts of silane coupling agent

[0063] Catalyst 2 parts

[0064] 3 parts of dispersant.

[0065] In this embodiment, the plastic is HDPE plastic.

[0066] In this embodiment, the silane coupling agent is γ-aminopropyltriethoxysilane.

[0067] In this embodiment, the catalyst is sodium hydroxide solution.

[0068] In this embodiment, the molar concentration of the sodium hydroxide solution is 1 mol / L.

[0069] In this embodiment, the dispersant is stearylamide.

[0070] A kind of production method of above-mentioned non-deformable plastic bottle cap, it comprises the following steps:

[0071]The first step, the preparation of mixed plastic particles, includes the following steps:

[0072] Step 1...

Embodiment 3

[0078] A non-deformable plastic bottle cap is formed by injection molding of mixed plastic particles, wherein the mixed plastic particles are made of the following components in parts by weight:

[0079] Plastic 100 parts

[0080] Aluminum hydroxide colloid 20 parts

[0081] Silane coupling agent 5 parts

[0082] Catalyst 1.5 parts

[0083] Dispersant 7 parts.

[0084] In this embodiment, the plastic is PET plastic.

[0085] In this embodiment, the silane coupling agent is γ-(2,3-glycidoxy)propyltrimethoxysilane.

[0086] In this embodiment, the catalyst is sodium hydroxide solution.

[0087] In this embodiment, the molar concentration of the sodium hydroxide solution is 3 mol / L.

[0088] In this embodiment, the dispersant is polyethylene wax.

[0089] A kind of production method of above-mentioned non-deformable plastic bottle cap, it comprises the following steps:

[0090] The first step, the preparation of mixed plastic particles, includes the following steps:

[0...

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PUM

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Abstract

The invention relates to the technical field of bottle caps, in particular to a plastic bottle cap not prone to deformation and a production method thereof. The plastic bottle cap not prone to deformation is formed by mixed plastic particles in an injection molding mode. The mixed plastic particles are prepared from plastic, aluminum hydroxide colloid, a silane coupling agent, a catalyst and dispersant. The plastic bottle cap not prone to deformation formed by the mixed plastic particles in the injection molding mode can resist the temperature of 200 DEG C, thus, the plastic bottle cap not prone to deformation is suitable for filling food for high-temperature sterilization, has the advantage of being good in high temperature resistance, and is not prone to deformation in the high-temperature sterilization procedure, then, the sealing performance of the plastic bottle cap is guaranteed, and the reject ratio of products is greatly reduced. The production method of the plastic bottle cap not prone to deformation has the advantages of being simple in method, low in production cost and suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of bottle caps, in particular to a non-deformable plastic bottle cap and a production method thereof. Background technique [0002] At present, plastic bottle caps are widely used in the food industry. Plastic bottle caps and bottle bodies are used to load food. In the processing and production of filled food, usually after filling the food, it needs to be sterilized at high temperature, so that the food product It can be stored for a long time without deterioration. In the process of high-temperature sterilization of bottle-filled food, the temperature of high-temperature sterilization is usually 121°C, and the time of high-temperature sterilization is usually 15 minutes to 30 minutes. [0003] However, the plastic bottle caps in the prior art are usually not resistant to high temperature, or the effect of high temperature resistance is not good. This type of bottle cap is prone to deformation during the h...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L67/02C08L69/00C08L55/02C08K9/06C08K3/22C08K5/20
Inventor 陈金培
Owner 湖南金富包装有限公司