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Air pollution in recent years, resulting in many polluting enterprises directly shut down, for the smart card industry, card materials gradually want to environmental protection materials transformation, the majority of cards on the market are currently made of environmentally friendly materials. Environmental protection PVC material section is divided into: general-purpose PVC resin, high polymerization PVC resin, cross-linked PVC resin. General purpose PVC resin is formed by the polymerisation of vinyl chloride monomer (VCM) under the action of initiators; high polymerisation PVC resin is a resin made by adding chain growth agents to the VCM polymerisation system; cross-linked PVC resin is a resin made by adding cross-linking agents containing dienes and polyenes to the VCM polymerisation system.
Smart card environmental material properties.
Stable; not easily corroded by acids and alkalis; relatively resistant to heat
PVC has the advantages of flame retardant (flame retardant value of 40 or more), high chemical resistance (resistant to concentrated hydrochloric acid, concentration of 90% sulfuric acid, concentration of 60% nitric acid and concentration of 20% sodium hydroxide), good mechanical strength and electrical insulation.
Previous：2013 is expected to reduce the magnetic stripe card market by 14
Hospital medical card can use magnetic stripe card, ID card or IC due to the different hospital systems, the medical card used is also different. At present, a hospital in Guangdong uses contact hospi
Many enterprises are in the process of reading and writing ic in the card, will have a large amount of card, the internal code repeat, messy code and other experiences. Today, according to this phenom
Composite cards may not be common to many customers, but composite cards are still widely used in certain fields. Now, with the increasing application of smart cards to avoid replacing the original ol
1. Security Comparison of IC card system and ID card system IC card is much more secure than ID card. Read the card number in the ID card without any permission, easy to imitate
Contactless ic card, also known as smart card, is a common card in smart cards, the more common in l
Update time：2023-04-03 16:08:48 / Views：121 The varieties of common campus cards and the corresponding production methods. When making campus cards, everyone doesnt know
