Plastic fillers are upgrading opportunities

In 2005, domestic production of nano calcium carbonate up to 250,000 tons. In view of many in the construction of the proposed project is expected by the year 2010, the National nano calcium carbonate production capacity will reach 1,900,000 tons, the production will be more than 1,300,000 tons, while domestic demand is expected to then only 750,000 tons, the oversupply in the market Inevitably, most likely resulting price drop. Some experts said the plastics processing industry, this will be a filler will be an excellent time to upgrade.

Calcium is the most commonly used, the maximum amount of plastic filler. The nano calcium carbonate as a result of ultra-fine particles to make it crystal structure and surface electronic structure changes with calcium carbonate general do not have special properties, which can be filled in the high proportion of plastic products, to ensure that even in raising the quality of products at the same time To substantially reduce the cost of production, plastics processing is a good filler. But for a long time, up to 4000 yuan / ton or so of price, restricted the nano calcium carbonate in the plastic products in a wide range of applications.

Nano calcium carbonate domestic industry started relatively late, the small size of the device, has been in short supply, especially following the 60nm high-end products, more than 70% dependent on imports of motor vehicles and chassis paint with high-end nano calcium carbonate prices as high as 8,000 to 10,000 yuan / ton . The price is too high to make it very difficult in the field of plastics processing widely used. However, with domestic production of nano calcium carbonate rapid expansion, and also to open up the field of application of weak supply and demand changes are taking place in the most conservative estimates, by 2010 the country nano calcium carbonate surplus will be more than 60 million tons. Overproduction, is bound to lead to price drop, once the price dropped to 3,000 yuan / ton less cost-effective advantage of nano calcium carbonate will be highlighted to make it in the plastic processing in a wide range of possible applications.

Compared with the common calcium carbonate, the excellent performance of nano calcium carbonate, can be greatly reduced cost of production of plastic processing enterprises. As the common calcium carbonate particles large size, it is difficult to add to the high proportion of plastic products, or products will tensile strength, impact strength and tear strength properties, such as dropped, so common in the calcium carbonate in the plastic packaging products to add The amount of not more than 12% in the plastic pipe and accessories in the amount can not exceed 30%. The use of nano calcium carbonate as filler is not. Since the Nano's ultra-fine powder, to enable them to better compatibility with the resin, in the realization of products in the high proportion of filler. Japan has passed on the nano calcium carbonate powder on the surface of activated to deal with, succeeded in calcium carbonate in the plastic pipe in the filling capacity by 30% to 60% of plastic packaging materials will be added to fill in the ratio of calcium carbonate by less than 12% To more than 30%; Britain, the United States, Germany and other countries have also launched a high-performance nano calcium carbonate to fill more than 50% of the plastic pipe and profile, so that these countries the cost of plastic products dropped significantly.

Indeed, the use of nano calcium carbonate, could significantly decrease the cost of plastic products. HDPE pipe in order to, for example, the current HDPE price has exceeded 13,000 yuan / ton, while filling in the plastics of nano calcium carbonate powder price to 3,000 yuan / tons, if the processing of plastic pipe in the process of adding 10%, we can make Integrated products reduce the cost of more than 700 yuan / ton (with the cost of raw materials accounted for 70% of the cost of integrated products that include). If we can be as developed as filling volume increased 30%, then tons of integrated products that can decrease the cost of 2,100 yuan.

In addition, the use of nano calcium carbonate can also improve the rheological and plastic molding, and products to enhance the resilience, gloss, bending strength and gap-free and notched impact strength. Test shows that the internal seals in the automotive PVC plasticized melt glue to add the calcium carbonate 70nm, the mother of the plastic molding and rheology of significant improvement. And the toughening of nano calcium carbonate masterbatch for the production of PVC doors and windows profile, high-filling ratio, obtained by PVC doors and windows Profile of the performance of all testing is superior to all the "door window frame with a hard PVC National Institute of Standards Profile "(GB8814-1998).

Although the domestic plastic processing industry of nano calcium carbonate is only the third largest user, the use of nano calcium carbonate accounts for only 15% of the total consumption, but it is the most successful use of nano calcium carbonate, the most promising areas. China is the world of nano calcium carbonate production capacity and output of the fastest-growing countries, the rapid expansion of production capacity need to rapidly develop new nano calcium carbonate broader applications, and the plastics processing industry is undoubtedly the most potential to open up one of the area. If the plastics business and nano calcium carbonate enterprises to strengthen cooperation, enhance the level of plastic products, reduce production costs, to digest the excessive growth of nano calcium carbonate production capacity, are very useful.