Mechanistic Insights Into Hydrotalcite Based PVC Thermal Stabilizers From Laboratory To Industrial

Mechanistic Insights into Hydrotalcite Based PVC Thermal Stabilizers From Laboratory to Industrial Application

Product Name: Hydrotalcite adsorbent

CAS No.: 12304-65-3

Molecular Formula: [M_(1-X)²⁺M_x³⁺y(OH)]^x+(A^n-)_x/n·mH₂O

Product Introduction:

        Discover hydrotalcite - based PVC thermal stabilizers. These are designed with in - depth mechanistic insights from comprehensive laboratory research, ensuring smooth translation to industrial application. They effectively capture harmful HCl during PVC processing, inhibit radical - induced degradation, and form a protective layer on PVC surfaces. With high efficiency and environmental friendliness, they enhance PVC's heat resistance, extend product lifespan, and meet the demands of large - scale PVC production.

Specification:

The mechanism of industrial grade Hydrotalcite in the thermal stability of PVC:

1. Capture of hydrogen chloride:

When PVC is heated, it releases hydrogen chloride (HCl), and HCl can accelerate the degradation of PVC. Industrial - grade magnesium aluminum carbonate is alkaline. Its carbonate ions (CO₃^2-)and hydroxide ions (OH^-) can react with HCl through a neutralization reaction to produce water and corresponding chlorides. This inhibits the catalytic effect of HCl on PVC degradation and slows down the thermal degradation rate of PVC. 

2. Radical scavenging:

During the thermal degradation of PVC, some free radicals such as chlorine radicals (Cl^-) are generated. These free radicals can initiate reactions such as the chain - scission and cross - linking of PVC molecular chains, leading to a decline in PVC performance. Some metal ions in industrial - grade magnesium aluminum carbonate, such as magnesium ions (Mg²⁺) and aluminum ions (Al3⁺), can scavenge these free radicals through processes such as electron transfer, terminating the free - radical chain reaction and thus stabilizing PVC. 

Package:

Net 20kg per bag. Coated paper on the outside, kraft composite paper lining and soft plastic bag.

Customized package available.