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PET film is a difficult-to-attach material-technical knowledge

by:POLYVA     2022-01-03
PET film is a material that is difficult to attach. Source: protective film factory direct sales. Release time: 2019-04-28 Click: 1998 PET film is a material that is difficult to attach. Look for a coating material that completely adheres to the PET film material. 28-PET hygiene and safety requirements for food contact-The EU stipulates that PET film has excellent physical and chemical properties, such as high strength, good transparency, non-toxicity, good barrier properties, and excellent electrical insulation properties. widely used. However, its monomers, catalysts and other additives, including by-products, are highly toxic substances, and there is a risk of migration. Countries around the world have formulated corresponding standards for the hygiene requirements of PET for food contact. European Union (EU) NO 10/2011 Regarding the plastic materials and products expected to come into contact with food, the regulation on the special migration of monomers and additives in PET, and monomers and additives and by-products in PET is specified in (EU) NO.10/2011. Is restricted. Among them, antimony is a highly toxic metal (acute toxicity: abdominal cavity-rat LD50: 100mg/kg; abdominal cavity-mouse LD50: 80mL/kg). The toxicity of antimony depends on its chemical structure and oxidation state. Trivalent antimony is better than pentavalent antimony. More toxic. The special migration test of antimony in EU regulations uses the following simulation fluids: 3% acetic acid (B), 20% ethanol (C), olive oil (D2). For foods that are hydrophilic and can extract hydrophilic substances, use food simulants A, B and C; use simulants B for foods below pH 4.5; alcoholic foods with an alcohol content of not more than 20% and those that contain certain Foods with a large number of organic components and showing more hydrophilicity adopt simulant C; foods with free fat on the surface adopt simulant D2. Choose the worst conditions for the contact time and temperature of the sample and the simulant. The special migration amount of antimony can be analyzed by ICP-MS, HG-AFS and HPLC-ICP-MS. Foshan Bowei Environmental Protection Material Co., Ltd. is an electronic material supplier with 10 years of experience. It can produce PET film with various functions, such as: sub-(matte) PET film, flame-retardant (fireproof) PET film, inkjet printing film , Antistatic PET film, anti-fog PET film, anti-UV PET film, non-shrinking PET film, PET release film, etc. Interested parties welcome to inquire!
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