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The application of titanium dioxide in PVC profile

The application of titanium dioxide in PVC profile

  • Categories:Applications
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  • Time of issue:2023-08-26
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(Summary description)

The application of titanium dioxide in PVC profile

(Summary description)

  • Categories:Applications
  • Author:
  • Origin:
  • Time of issue:2023-08-26
  • Views:0
Information

PVC profile is used as an outdoor product, and weather resistance is one of the most important properties. Its weather resistance mainly depends on titanium dioxide, so high weather resistance is the most basic requirement for titanium dioxide. Of course, titanium dioxide also plays a role as a pigment in profile, and it is also necessary to provide good appearance and color. The formula of rigid PVC profile is very complex, the processing difficulty is high, the titanium dioxide is required to not affect the processing performance of other components, and meet the requirements of high temperature processing for the heat resistance of titanium dioxide.

      The requirements of profiles for titanium dioxide can be said to be the most basic weather resistance. Therefore, the rigid PVC profile uses high weathering rutile titanium dioxide. The molding process of plastic processing mainly includes injection molding, extrusion, calendering, blown film, hollow molding, etc., among which rigid PVC profile is extrusion molding. Various molding processes must heat and shear raw and auxiliary materials during processing, and the components are evenly mixed, so the common requirements are: titanium dioxide should meet the basic heat resistance requirements, should be easy to disperse, do not affect the processing performance of other components, etc., the difference is mainly the different effects on the later application performance of the product.

      Titanium dioxide plays a very important role in the development of the hard PVC profile market. Hard PVC doors and windows have outstanding comprehensive performance, 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 discoloration resistance for profiles, and appropriately reduce costs, then the share of PVC profiles in the door and window market will be more obvious. At present, in the plastic industry, rigid PVC profiles are one of the main users of high-end rutile titanium dioxide, and the industry has reached 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 huge development space and opportunities.

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