The hottest epoxy resin has become a new favorite

Epoxy resin has become a new favorite of beer preservation

epoxy resin, as an environmental friendly and outstanding material, has long been used in food packaging. For example, in the 1980s, Bluestar new material Wuxi resin factory developed an epoxy resin coating on the inner wall of food cans. However, it is the first time that it has been applied to beer packaging, which is the two-component epoxy amine inner wall coating technology of PET beer bottles successfully developed abroad

ordinary PET beer bottles appeared in Japan in the 1980s. At that time, they were mainly used for small banquets, with a specification of 1 ~ 3 liters. However, due to the problem of oxygen isolation, they have been regularly cleaned and eliminated within four to five years after listing. In the late 1990s, a variety of new materials and processes for barrier and improving heat resistance, including pet multilayer composite technology with barrier layer and pet surface coating, drove the company's revenue in the first quarter to a new high since the third quarter of 2015. The coating technology, pet co blend Metallization Technology and the development of high barrier pen materials have made considerable progress. Physical and chemical properties such as high temperature pasteurization can only produce degraded products. Bacteria testing, oxygen resistance, sealing performance, vertical pressure and filling pressure basically meet the needs of beer packaging

the barrier technology of PET beer bottles can be divided into many categories, many of which are made of epoxy resin. According to experts from China epoxy resin industry association, its main contents include: first, the ice beer PET bottle with epoxy amine sprayed on the surface developed in Australia has a beer shelf life of 100 ~ 120 days under non refrigerated conditions; The PET beer bottle with three-layer structure with epoxy material as the shielding layer developed by schmalbach lubeca company in the United States meets the environmental protection requirements and can be recycled; The PET bottle gas barrier coating technology developed by PPG company of the United States can be removed when the waste bottle is recycled. The coating is composed of two-component epoxy amine. The process layer of the thermosetting pneumatic pipe joint tension tester has toughness and moisture resistance. The thickness of the 0.5-liter PET bottle coating is 4-19 microns, and the oxygen barrier can be improved by 2-12 times, The use of the coating not only does not affect the transparency of the bottle, but also improves the gloss of the PET bottle

reprinted from: Chinese sugar and wine