Nontoxic environment-friendly tinplate tank lid sealant and preparation method thereof

Abstract

The invention discloses a nontoxic environment-friendly tinplate tank lid sealant and a preparation method thereof. The sealant comprises the following components in part by weight: 70 to 110 parts of acetyl tributyl citrate, 3 to 7 parts of calcium-zinc stabilizer, 1 to 5 parts of simethicone, 1 to 5 parts of titanium pigment, 4 to 8 parts of oleamide, 0.5 to 4.5 parts of erucyl amide and 90 to 130 parts of polyvinyl chloride paste resin. The method for preparing the sealant comprises the following steps of: adding the titanium pigment and the calcium-zinc stabilizer into the acetyl tributyl citrate and a plasticizer with stirring, adding the polyvinyl chloride paste resin, oleamide and simethicone into the mixture with stirring, and finally filtering the mixture by using a 120-mesh screen to prepare the nontoxic environment-friendly tinplate tank lid sealant. As the nontoxic environment-friendly tinplate tank lid sealant contains no phthalate plasticizer, the sealant is nontoxic, can meet the requirement of food safety, is friendly to food and environment, and has the advantages of high temperature resistance, low cost, good sealing effect and the like.

Description

technical field [0001] The invention relates to a sealant, in particular to a non-toxic and environment-friendly tinplate can lid sealant and a preparation method thereof. Background technique [0002] Tinplate can lid sealant is indispensable in the sealing of food can products, but its production process and method are kept secret by the production enterprise, so the development of this industry is limited. With the continuous development of science and technology, people have higher and higher requirements for sealants, not only requiring good sealing performance, but also requiring no pollution to food and the environment. However, traditional can lids use phthalates as plasticizers, and have been proven to have a certain degree of damage to the human liver, so their use has been limited. Therefore, seeking materials to replace phthalates has become the main research direction at present. In patent ZL93102095.6, tris(2-ethylhexyl) trimellitate (TOTM) and citric acid es...

AI Technical Summary

Problems solved by technology

In Chinese patent 200710021637.9, cyclohexane-1,2-diisononyl dicarboxylate (DINCH) is used in conjunction with LGFLEX EBN plasticizer from LG Chem Co., Ltd. of South Korea to prepare a liquid sealant. The high price of plastics leads to high production costs of liquid sealants