Citrate
Citric acid esters as a new green plastic plasticizer , non-toxic , odorless , and can replace traditional phthalate plasticizers, widely used in food and pharmaceutical packaging equipment , cosmetics, daily necessities , toys, military supplies and other areas , but also an important chemical intermediates. Which the acetyl citrate more superior performance , versatile , is not only toxic , odorless green plastic plasticizer , polyvinylidene chloride can be used as stabilizers, film and metal adhesion improver , which binding length time of immersion in water still has a strong adhesion.
The United States , the European Union and other developed countries have successively introduced provisions allowing citric acid esters as children's toys, hygiene products, medical equipment, leather and other products with the body and health are closely related to plastic additives require a higher one . China in the mid-1990s began to study the development of citric acid esters.
Plasticizer for biodegradable plastics
UK government partially funded a project successfully developed a biodegradable plastic plasticizer for film and other flexible packaging polylactic acid (PLA) , you can significantly improve the mechanical properties of PLA . The project by the UK Government Sustainable Development Technology startup program support, which makes conventional hard to improve the flexibility of PLA , its elongation from the original 5% to 320% . Such plasticizers can be biodegradable , they are the product of the amount of additive of 10% to 20%. The PLA based modifier generated between the polyethylene glycol block copolymer. After modified PLA can be in the mixture at 20 days to 25 days away. At present, such aid has achieved industrial-scale production . Promote the healthy development of plasticizers .
Europe and Japan and South Korea and other places respected environmental plasticizers
China's current exports faced with more severe external environment. Special attention is required , the importing country to improve quarantine standards , as a means to increase the detection project , with technical barriers to trade restrictions on Chinese exports to protect domestic industry trends are becoming evident . At present , Europe and Japan and South Korea and other countries have used citric acid esters , epoxy esters and other safety and environmental protection plasticizer for updating alternative products, have been introduced in the food packaging, medical supplies , children's toys and other products for human contact DOA disabled , DOP standards, regulations, and standards in our country , it is also expressly allows the use of DOA, DOP. Although these varieties are carcinogenic plasticizers inconclusive , but because of China's relevant standards lag , which attracted many domestic exports of plastic products , and products containing plasticizers outdated massive immigration and other issues, to solve our plasticized agent standards lag problem is imminent. |
