Compared with the domestic level of mold manufacturing, the multinational mold group not only possesses abundant capital, advanced technology, high-quality equipment and successful mold experience accumulated over many years, but also has the advantage of employing relatively cheap labor resources in China at the domestic mold market. The competition is ahead of many domestic mold companies. However, due to the limitations of private enterprises, mold price wars are common in the mid-to-low-end mold market competition. Many mold companies are willing to process molds at prices below cost in order to receive orders, and low prices bring low quality. It has aggravated the disorderly competition in the mold market and the mold material market, and has seriously affected the survival of some mold companies. This point deserves our attention in the industry.
According to the different production methods of calcium carbonate, calcium carbonate can be divided into Heavy Calcium Carbonate, light calcium carbonate, colloidal calcium carbonate and crystalline calcium carbonate. White solid, tasteless and odorless. There are two forms of amorphous and crystalline. The crystal type can be divided into orthorhombic crystal system and hexagonal crystal system, which are columnar or diamond-shaped.
Calcium carbonate is widely used in filling polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), acrylonitrile butadiene-styrene copolymer (ABS) and other resins. The addition of calcium carbonate has a certain effect on improving certain properties of plastic products and expanding their application range. In plastic processing, they can reduce resin shrinkage, improve rheology, and control viscosity. It can also play the following roles:
(1) Improve the dimensional stability of plastic products;
(2) Improve the hardness and rigidity of plastic products;
(3) Improve plastic processing performance;
(4) Improve the heat resistance of plastic products;
(5) Improve the astigmatism of plastics;
(6) It can make the product have some special properties;
(7) Reduce the cost of plastic products.
Calcium Carbonate,Calcium Carbonate, Light Calcium Carbonate
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