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Plastic bottle cap and production technique thereof

A production process and plastic technology, which is applied in the field of plastic bottle caps and its production process, can solve the problems of affecting the sealing performance of bottle caps, poor high temperature resistance, high product defect rate, etc., and achieve the effect of reducing product defect rate and high temperature resistance Good, low production cost effect

Active Publication Date: 2017-03-15
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

[0042] A 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:

[0043] 90 parts plastic

[0044] Tetrabutyl stannate 25 parts

[0045] 6 parts water

[0046] 8 parts of silane coupling agent

[0047] Catalyst 1 part

[0048] Dispersant 5 parts.

[0049] In this embodiment, the plastic is PP plastic.

[0050] In this embodiment, the silane coupling agent is γ-(2,3-glycidoxy)propyltrimethoxysilane.

[0051] In this embodiment, the catalyst is sodium hydroxide solution.

[0052] In this embodiment, the molar concentration of the sodium hydroxide solution is 2 mol / L.

[0053] In this embodiment, the dispersant is polyethylene wax.

[0054] The production process of above-mentioned a kind of plastic bottle cap, it comprises the following steps:

[0055] The first step, the preparation of mixed plastic particles, includes the following steps:

[0056] Step ...

Embodiment 2

[0062] A 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:

[0063] Plastic 80 parts

[0064] Tetrabutyl stannate 30 parts

[0065] 8 parts water

[0066] 10 parts of silane coupling agent

[0067] Catalyst 2 parts

[0068] 3 parts of dispersant.

[0069] In this embodiment, the plastic is HDPE plastic.

[0070] In this embodiment, the silane coupling agent is γ-aminopropyltriethoxysilane.

[0071] In this embodiment, the catalyst is sodium hydroxide solution.

[0072] In this embodiment, the molar concentration of the sodium hydroxide solution is 1 mol / L.

[0073] In this embodiment, the dispersant is stearylamide.

[0074] The production process of above-mentioned a kind of plastic bottle cap, it comprises the following steps:

[0075] The first step, the preparation of mixed plastic particles, includes the following steps:

[0076] Step 1, thoroug...

Embodiment 3

[0082] A 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:

[0083] Plastic 100 parts

[0084] Tetrabutyl stannate 20 parts

[0085] 5 parts water

[0086] Silane coupling agent 5 parts

[0087] Catalyst 1.5 parts

[0088] Dispersant 7 parts.

[0089] In this embodiment, the plastic is PET plastic.

[0090] In this embodiment, the silane coupling agent is γ-(2,3-glycidoxy)propyltrimethoxysilane.

[0091] In this embodiment, the catalyst is sodium hydroxide solution.

[0092] In this embodiment, the molar concentration of the sodium hydroxide solution is 3 mol / L.

[0093] In this embodiment, the dispersant is polyethylene wax.

[0094] The production process of above-mentioned a kind of plastic bottle cap, it comprises the following steps:

[0095] The first step, the preparation of mixed plastic particles, includes the following steps:

[0096] Ste...

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Abstract

The invention relates to the technical field of bottle caps, particularly a plastic bottle cap and a production technique thereof. The plastic bottle cap is prepared by carrying out injection molding on mixed plastic granules. The mixed plastic granules are prepared from plastics, tetrabutyl stannate, water, a silane coupling agent, a catalyst and a dispersing agent. The plastic bottle cap can resist the temperature of 200 DEG C, and thus, is suitable for filling food and carrying out high-temperature sterilization. The plastic bottle cap has the advantage of favorable high-temperature-resistant effect, and can not easily deform in the high-temperature sterilization procedure, thereby ensuring the sealing property of the plastic bottle cap, and greatly lowering the fraction defective of the product. The production technique has the characteristics of simple process and low production cost, and is suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of bottle caps, in particular to a plastic bottle cap and a production process 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 food filled in bottles, 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 high temper...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L67/02C08L69/00C08L55/02C08K5/10C08K5/5435C08K5/544
CPCC08K5/10C08K5/20C08K5/544C08L23/12C08L67/02C08L69/00C08L2201/08C08L2203/10C08L2207/062C08L23/06C08K5/5435C08L55/02
Inventor 陈金培
Owner 湖南金富包装有限公司
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