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塑钢窗后，极景如何持续看好UPVC

来源：家居百科时间：2026年07月14日 15:43

Understanding UPVC: The Evolution of Plastic Windows Understanding UPVC: The Evolution of Plastic Windows

For a long time, UPVC windows were the standard in Chinese residential buildings. However, they have quickly faded from the high-end home improvement market in many cities. Yellowing, flaking, and becoming brittle have become common memories for many consumers of this type of window.

Thus, a simple conclusion has spread: UPVC is a material that has become outdated. This judgment seems logical, but it overlooks the process of material production. Why has the market reputation of UPVC windows deteriorated? Is it because the material itself is not good, or is it because long-term low-price competition has changed the formula, additives, and manufacturing standards?

Extreme View has chosen to start with the latter question.

The Material Weighed Down by Low-Price Manufacturing

The full name of UPVC is unplasticized polyvinyl chloride. It has a low thermal conductivity, making it suitable for insulation materials; its multi-chambered structure can further isolate heat and sound. In Europe, North America, and Japan, UPVC is still one of the important materials for building exterior windows.

But the same material can be made into completely different products.

According to the materials provided by Extreme View, some plastic window companies in the past would increase the proportion of fillers such as calcium carbonate to reduce costs. While this reduces material costs, it may affect the toughness, low-temperature performance, and welding strength of the profile. Another often overlooked aspect is titanium dioxide. Outdoor materials require a more weather-resistant rutile-type titanium dioxide, along with ultraviolet absorbers and light stabilizers; reducing the amount or using materials not suitable for long-term outdoor exposure may not show problems in the short term, but may lead to discoloration, flaking, and脆ification in a few years.

In other words, the "material aging" that consumers see at the end is often a prelude that was laid down when the formula was determined.