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A kind of fluorine rubber type oil-resistant metal bottle cap sealant and preparation method thereof

A technology of fluorine rubber and oil resistance, which is applied in the field of fluorine rubber oil-resistant metal bottle cap sealant and its preparation. It can solve the problems of not meeting food hygiene requirements, migration of sealant components, and damage to human health, so as to improve hydrophobicity As well as the effects of flexibility, improved stability, and improved heat and oxidation resistance

Active Publication Date: 2021-01-15
JIANGSU JINHOU NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Bottle cap sealant is indispensable in the sealing of various bottled products. With the development of science and technology, the requirements for bottle cap sealant are getting higher and higher all over the world. Not only good sealing performance is required, but also food and The environment is non-polluting. Because the bottle cap sealant will inevitably come into contact with food, there will be sealant components migrating into the food, which will affect the quality of the food and damage human health.
[0003] CN1091443A discloses the use of trimellitic acid tris (2-ethylhexyl) ester (TOTM) and citrate as a plasticizer, and CN1696189A discloses the use of phthalate bis (2-ethylhexyl) ester, partial Tris(2-ethylhexyl) trimellitate (TOTM) and acetyl tributyl citrate (ATBC) cooperate to use as plasticizer, CN101338171A discloses adopting dioctyl terephthalate (DOTP), acetyl citrate Tributyl ester (ATBC) is used together as a plasticizer, but after the plasticizer involved in the above patent is made into a sealant, the amount of migration is very large when it comes into contact with oily food, which cannot meet the food hygiene requirements of European and American countries

Method used

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  • A kind of fluorine rubber type oil-resistant metal bottle cap sealant and preparation method thereof
  • A kind of fluorine rubber type oil-resistant metal bottle cap sealant and preparation method thereof
  • A kind of fluorine rubber type oil-resistant metal bottle cap sealant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] In this example, the raw materials for the preparation of the provided fluororubber oil-resistant metal cap sealant include the following components in parts by weight:

[0049]

[0050] Wherein said hyperbranched polysiloxane structure is as follows:

[0051] where R is -CH 2 CH 2 -, n is 4.

[0052] The polyalkoxysilane coupling agent is a hexaalkoxysilane coupling agent, and the antioxidant is antioxidant 1010.

[0053] The preparation method of the fluorine rubber type oil-resistant metal bottle cap sealant specifically comprises the following steps:

[0054] (1) Mix a part (30 parts by weight) of fluorine rubber with fluorinated modified acrylic resin, maleimide modified phenolic resin, dimethyl silicone oil and a part (3 parts by weight) of polyalkoxysilane coupling agent well mixed;

[0055] (2) Mix the remaining polyalkoxysilane coupling agent with calcium carbonate, nano-silicon dioxide, nano-silver and an antioxidant, and stir for 1 hour under vacuum...

Embodiment 2

[0059] In this example, the raw materials for the preparation of the provided fluororubber oil-resistant metal cap sealant include the following components in parts by weight:

[0060]

[0061] Wherein said hyperbranched polysiloxane structure is as follows:

[0062] where R is -CH 2 CH 2 CH 2 -, n is 3.

[0063] The polyalkoxysilane coupling agent is a hexaalkoxysilane coupling agent, and the antioxidant is antioxidant 1010.

[0064] The preparation method of the fluorine rubber type oil-resistant metal bottle cap sealant specifically comprises the following steps:

[0065] (1) Mix a part (30 parts by weight) of fluorine rubber with fluorinated modified acrylic resin, maleimide modified phenolic resin, dimethyl silicone oil and a part (3 parts by weight) of polyalkoxysilane coupling agent well mixed;

[0066] (2) Mix the remaining polyalkoxysilane coupling agent with calcium carbonate, nano-silicon dioxide, nano-silver and an antioxidant, and stir for 2.5 hours und...

Embodiment 3

[0070] In this example, the raw materials for the preparation of the provided fluororubber oil-resistant metal cap sealant include the following components in parts by weight:

[0071]

[0072] Wherein said hyperbranched polysiloxane structure is as follows:

[0073] where R is -CH 2 CH 2 -, n is 6.

[0074] The polyalkoxysilane coupling agent is a hexaalkoxysilane coupling agent, and the antioxidant is antioxidant 1010.

[0075] The preparation method of the fluorine rubber type oil-resistant metal bottle cap sealant specifically comprises the following steps:

[0076] (1) Mix a part (30 parts by weight) of fluorine rubber with fluorinated modified acrylic resin, maleimide modified phenolic resin, dimethyl silicone oil and a part (5 parts by weight) of polyalkoxysilane coupling agent well mixed;

[0077] (2) Mix the remaining polyalkoxysilane coupling agent with calcium carbonate, nano-silicon dioxide, nano-silver and an antioxidant, and stir for 3 hours under vacuu...

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Abstract

The invention provides a fluorubber oil-resistant metal bottle cap sealant and a preparation method thereof. The fluorubber oil-resistant metal bottle cap sealant comprises the following raw materialsin parts by weight: 50-70 parts of fluorubber, 10-20 parts of fluorinated modified acrylic resin, 10-20 parts of maleimide modified phenolic resin, 5-10 parts of hyper-branched polysiloxane, 5-10 parts of a polyalkoxy silane coupling agent, 3-5 parts of dimethicone, 1-5 parts of calcium carbonate, 1-3 parts of nano silica, 3-5 parts of nano silver, and 1-3 parts of an anti-oxidant. The fluorubberoil-resistant metal bottle cap sealant has the advantages of good temperature toleration, oil stain resistance, hydrolysis resistance, and good stability, and has low mobility while contacting with food, which can satisfy the food hygiene requirements by European and American countries.

Description

technical field [0001] The invention relates to the technical field of sealing materials for packaging, and relates to a fluororubber oil-resistant metal bottle cap sealant and a preparation method thereof. Background technique [0002] Bottle cap sealant is indispensable in the sealing of various bottled products. With the development of science and technology, the requirements for bottle cap sealant are getting higher and higher all over the world. Not only good sealing performance is required, but also food and The environment is non-polluting. Since the bottle cap sealant will inevitably come into contact with food, there will be sealant components migrating into the food, which will affect the quality of the food and damage human health. [0003] CN1091443A discloses the use of trimellitic acid tris (2-ethylhexyl) ester (TOTM) and citrate as a plasticizer, and CN1696189A discloses the use of phthalate bis (2-ethylhexyl) ester, partial Tris(2-ethylhexyl) trimellitate (T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J127/12C09J133/04C09J161/14C09J183/04C09J11/04C09J11/06
CPCC08K2003/0806C08K2003/265C08K2201/011C08L2201/08C08L2205/035C09J11/04C09J11/06C09J127/12C08L33/04C08L61/14C08L83/04C08K13/02C08K3/26C08K3/36C08K3/08C08K5/5415
Inventor 王衍萍魏朝升朱琳王家玟蔡丽雪王晖
Owner JIANGSU JINHOU NEW MATERIAL TECH CO LTD
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