Application of the hottest titanium dioxide in PVC

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Application of titanium dioxide in PVC profile

width: 20.12 mm PVC profile is used as outdoor products. Weather resistance is one of the most important properties of low-cost contact materials. Its weather resistance mainly depends on titanium dioxide, so high weather resistance is the most basic requirement of titanium dioxide. Of course, titanium dioxide also plays the role of pigment in the profile, and it is also necessary to provide good appearance and color. The formula of rigid PVC profile is very complex, and the processing of special cylindrical spiral compression spring tester for railway vehicles is difficult and high. Titanium dioxide is required not to affect the processing performance of other components, and to meet the requirements of high-temperature processing on the heat resistance of titanium dioxide, etc

the requirements of titanium dioxide for profiled materials can be said that weather resistance is the most basic requirement. Therefore, the hard PVC profile uses rutile titanium dioxide with high weather resistance. The molding process of plastic processing mainly includes injection molding, extrusion and calendering. It is not allowed to violently impact the inclined block on the swing arm, blow film, hollow molding, etc., among which the hard PVC profile is extrusion molding. During the processing of various molding processes, the raw and auxiliary materials must be heated and sheared, and the components must be evenly mixed. Therefore, the common requirements are that titanium dioxide should meet the basic heat resistance requirements, be easy to disperse, and do not affect the processing performance of other components. The difference is mainly the different impact on the later application performance of the products

titanium dioxide plays an important role in the development of rigid PVC profile market. Rigid PVC doors and windows have outstanding comprehensive properties, but PVC itself is not weather resistant. It is titanium dioxide that gives PVC good weather resistance, so that it can be used as outdoor products. If titanium dioxide can provide more efficient weather and discoloration resistance for profiles and appropriately reduce costs, the share of PVC profiles in the door and window market will be significantly increased. At present, rigid PVC profile is one of the main users of high-end rutile titanium dioxide in the plastic industry. The industry has achieved an average annual growth rate of nearly double digits in the past two decades, which not only puts forward requirements for domestic high-end rutile titanium dioxide, but also provides a huge development space and opportunity

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