PVC heat stabilizers neutralize the acidic by-products, slow down the degradation process, and ensure that the PVC material retains its color, flexibility, and strength, even when exposed to high temperatures.
Key Performance Features of PVC Heat Stabilizers
1. Thermal Stability
The primary function of a PVC heat stabilizer is to provide thermal stability. During high-temperature processing methods like extrusion, molding, or calendaring, PVC would degrade quickly without a stabilizer. By slowing the breakdown of the polymer, heat stabilizers ensure that PVC retains its mechanical and aesthetic properties throughout its lifecycle.
2. Long-term Durability
Heat stabilizers not only provide protection during processing but also improve the long-term durability of PVC products. Whether used in construction materials like pipes and window profiles, or consumer products such as vinyl flooring, stabilizers help maintain the structural integrity of the material over years of exposure to varying environmental conditions.
3. Color Retention
One of the visible signs of PVC degradation is discoloration. Heat stabilizers play a critical role in maintaining the product’s color by preventing the oxidation and breakdown of the polymer, which often leads to yellowing or fading of PVC materials.
4. Mechanical Performance
By stabilizing the material at the molecular level, heat stabilizers ensure that PVC products maintain their flexibility, toughness, and impact resistance, even when subjected to prolonged exposure to heat or UV light.
Basic Infomation
Test Item
Test Standards
Test Data
Molecular weight and distribution
GPC
Mw=12~16*104.PDI=2.0~3.0
Glass transition temperaturehttps://www.yangchentech.com℃
DSC
160~210℃(Adjustable)
Initial decomposition temperaturehttps://www.yangchentech.com℃
TGA
395-405℃
Density
ASTM-D792
1.00~1.15ghttps://www.yangchentech.comcm3
Appearance
NG
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