Calcium carbonate filled modified polyethylene (PE) is not effective? There are many ways!
聚乙烯（PE）是工业生产中受关注度最高的塑料之一，具有耐低温优良、耐大多数酸碱侵蚀、化学稳定性好、成型快和可操作性强等优点，广泛应用于包装、建材、汽车、生物等领域。但因其存在耐热性差、力学性能相对较低等缺陷，限制了其进一步应用。
Polyethylene (PE) is one of the plastics with the highest attention in industrial production. It has excellent low-temperature resistance, resistance to most acids and alkalis, good chemical stability, rapid molding, and strong operability. It is widely used in packaging, building materials, automotive, biological, and other fields. However, due to its poor heat resistance and relatively low mechanical properties, its further application is limited.
超细碳酸钙（CaCO3）粒径小、分散性好，具有减少塑料中的气孔和空隙及使塑料的收缩更均匀的优点，将其填充在聚乙烯、聚苯乙烯、聚氯乙烯、聚丙烯等塑料中，可提高塑料制品的硬度、尺寸稳定性和刚性。
Ultrafine calcium carbonate (CaCO3) has a small particle size and good dispersibility, which has the advantages of reducing pores and voids in plastics and making the shrinkage of plastics more uniform. Filling it in plastics such as polyethylene, polystyrene, polyvinyl chloride, and polypropylene can improve the hardness, dimensional stability, and rigidity of plastic products.
但大量研究已经表明，只采用碳酸钙或其他一种填料填充改性聚合物或改性其他材料，往往达不到最理想的效果，性能提升比较单一。多种非金属矿物粉体复配改性，效果往往更好，可以提升材料综合性能，现在研究应用也越来越多。杨长友等研究表明，纳米CaCO3可提高聚乙烯复合材料的相容性和热稳定性，甘蔗渣纤维（BF）可提高复合材料的结晶度和韧性，二者能有效提高复合材料的机械性能和力学性能。
However, a large number of studies have shown that only using calcium carbonate or another filler to fill modified polymers or modify other materials often does not achieve the optimal effect, and the performance improvement is relatively simple. The composite modification of various non-metallic mineral powders often has better effects and can improve the comprehensive performance of materials. Currently, research and application are also increasing. Studies by Yang Changyou and others have shown that nano-CaCO3 can improve the compatibility and thermal stability of polyethylene composites, and bagasse fiber (BF) can improve the crystallinity and toughness of the composites, both of which can effectively improve the mechanical and mechanical properties of the composites.
