Preparation method of high-molecular water-resistant sealant washer in iron bottle cap

A polymer and apron sheet technology, applied in the field of food packaging, can solve problems such as human liver damage and use restrictions, and achieve excellent quality, reduced production costs, and good sealing effects

Inactive Publication Date: 2017-01-04
扬州市大明包装制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of phthalate plasticizers used in traditional polyvinyl chloride PVC bottle cap sealants is limited due to certain damage to the human liver.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Raw materials: dioctyl terephthalate 110, 100 parts of acetyl tributyl citrate, 6 parts of rapeseed oil, 25 parts of talcum powder, 2 parts of rutile titanium dioxide, 1 part of aluminate coupling agent, palmitic acid 4 parts of isooctyl esters, 250 parts of PVC resin powder, 4 parts of viscosity reducer; Dioctyl terephthalate and acetyl tributyl citrate are mixed uniformly to prepare a plasticizer; 205 parts of the prepared plasticizer Put 6 parts of rapeseed oil into the mixer and stir for 8 minutes; then add 25 parts of talcum powder and 2 parts of rutile titanium dioxide and stir for 15 minutes; then add 1 part of aluminate coupling agent and stir for 8 minutes; then put Add 4 parts of isooctyl palmitate and stir for 3 minutes; heat to 54°C, add 250 parts of PVC resin powder and stir for 40 minutes; after waiting at room temperature, add 4 parts of viscosity reducer and stir for 8 minutes; Molecular water-resistant bottle cap glue. Clean the inner side of the tinpl...

Embodiment 2

[0018] Raw materials: 170 parts of dioctyl terephthalate, 60 parts of acetyl tributyl citrate, 8 parts of rapeseed oil, 35 parts of talcum powder, 4 parts of rutile titanium dioxide, 1 part of aluminate coupling agent, palm 7 parts of isooctyl acid, 350 parts of PVC resin powder, 6 parts of viscosity reducer. Dioctyl terephthalate and acetyl tributyl citrate are evenly mixed to prepare a plasticizer. Put 225 parts of the prepared plasticizer and 8 parts of rapeseed oil into the mixer and stir for 12 minutes; then add 35 parts of talc powder and 4 parts of rutile titanium dioxide and stir for 25 minutes; Add 1 part of the agent and stir for 12 minutes; then add 7 parts of isooctyl palmitate and stir for 7 minutes; heat up to 56°C, add 350 parts of PVC resin powder and stir for 60 minutes; wait until room temperature and then add 6 parts of viscosity reducer and stir for 12 minutes , vacuum degassing to prepare polymer water-resistant bottle cap glue. Clean the inner side of t...

Embodiment 3

[0020] Raw materials: 130 parts of dioctyl terephthalate, 90 parts of acetyl tributyl citrate, 7 parts of rapeseed oil, 30 parts of talc powder, 3 parts of rutile titanium dioxide, 1 part of aluminate coupling agent, palm 6 parts of isooctyl acid, 300 parts of PVC resin powder, 5 parts of viscosity reducer. The plasticizer is prepared by uniformly mixing dioctyl terephthalate and acetyl tributyl citrate. Put 220 parts of the prepared plasticizer and 7 parts of rapeseed oil into the mixer and stir for 10 minutes; then add 30 parts of talc powder and 3 parts of rutile titanium dioxide and stir for 20 minutes; Add 1 part of the agent and stir for 10 minutes; add 6 parts of isooctyl palmitate and stir for 5 minutes; heat up to 55°C, add 300 parts of PVC resin powder and stir for 50 minutes; wait until room temperature and then add 5 parts of viscosity reducer and stir for 10 minutes , vacuum degassing to prepare polymer water-resistant bottle cap glue. Clean the inner side of th...

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PUM

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Abstract

A preparation method of a high-molecular water-resistant sealant washer in an iron bottle cap belongs to the technical field of food packaging. The preparation method comprises the following steps: preparation of a sealant body and glue injection moulding. The sealant body is prepared from the following ingredients (by weight): 80-120 parts of PVC paste resin, 30-60 parts of dioctylterephthalate, 15-35 parts of tributyl 2-acetylcitrate, 10-30 parts of heavy calcium carbonate, 1.5-3.5 parts of a calcium-zinc stabilizer, 0.8-1.6 parts of a white foaming agent, 0.5-1.1 parts of titanium dioxide, 0.3-0.9 part of dimethicone and 2-4 parts of rapeseed oil. After the sealant body is prepared, the inner side of a tinplate bottle cap is cleaned, and the prepared sealant body is uniformly injected onto the inner seal ring surface of the tinplate bottle cap; and after thermoforming, the nontoxic environmental-protection polyvinyl chloride sealant washer in the tinplate bottle cap is prepared. The method of the invention is simple and scientific. The prepared nontoxic environmental-protection polyvinyl chloride sealant washer in the tinplate bottle cap has excellent quality and good sealing effect, and is safe and environment friendly.

Description

technical field [0001] The invention relates to the preparation of a bottle cap sealing rubber ring sheet, in particular to a preparation method of a polymer water-resistant sealing rubber ring sheet in an iron bottle cap, belonging to the technical field of food packaging. Background technique [0002] Iron bottle caps are currently widely used bottled sealing caps. Bottle cap sealant is an indispensable and important material in the sealing of bottled products. Especially when used as bottled food sealing caps, the requirements for bottle cap sealant The higher the higher, not only requires good sealing performance, but also requires no pollution to food and the environment. With the continuous development of science and technology, the requirements for PVC bottle cap sealants are getting higher and higher all over the world, not only requiring good sealing performance, but also requiring no pollution to food and the environment. However, the use of phthalate plasticizers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K5/12C08K5/11C08K3/34C08K3/22C08K5/101
Inventor 高瑞明
Owner 扬州市大明包装制品有限公司
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