BX Calcium Zinc Heat Stabilizer

Introduction – What is PVC Stabilizer?

When PVC is at 100-150°C, ultraviolet light, mechanical force, oxygen, ozone, hydrogen chloride, and some active metal salts and metal oxides will accelerate the decomposition rate on the basis of its own decomposition.

For the processing of PVC, thermal decomposition does not change its properties much, mainly affecting the color of the finished product, and adding heat stabilizers can inhibit the initial colorability of the product. In addition, if there is oxygen in the thermal decomposition process of PVC, there will be colloidal carbon, peroxide, carbonyl and ester-based compounds. In this case, it is necessary to add a heat stabilizer in the process of PVC processing, so that to a certain extent, it can replace the unstable chlorine atoms in PVC, absorb hydrogen chloride, and undergo addition reactions with unsaturated parts. Inhibits the degradation of PVC molecules.

Calcium Zinc Heat Stabilizer

Calcium Zinc Heat Stabilizer is the second largest heat stabilizer after lead salts in dosage, although its thermal stability is not as good as that of lead salts, it also has lubricity. It is non-toxic due it does not contain Cd and Pb. Non-Pollution, so it is widely used in soft PVC, such as non-toxic, transparent and so on. Metal soaps can be metal (lead, barium, cadmium, zinc, calcium, etc.) salts of fatty acids (lauric acid, stearic acid, naphthenic acid, etc.), among which stearate is the most commonly used, and its thermal stability ranking as following: zinc salt > cadmium salt > lead salt > calcium salt/barium salt. Metal soaps are generally not used alone, and are often used between metal soaps, or in combination with lead salts and organic tin.

BX Calcium Zinc Heat Stabilizer

Heat Stabilizer by PVC process

Baoxu offers heat stabilizer by PVC process below

1. Heat Stabilizer for PVC Foaming
2. Heat Stabilizer for RPVC Extrusion
3. Heat stabilizer for Calendered packaging
4. Heat Stabilizer for RPVC Injection
5. Heat Stabilizer for Transparent PVC
6. Heat Stabilizer for opaque PVC

Heat Stabilizer by Applications

Baoxu offer heat stabilizer by applications below

1. Heat Stabilizer for PVC pipe, fittings
2. Heat Stabilizer for PVC foaming
3. Heat Stabilizer for PVC window, profile
4. Heat Stabilizer for PVC wire, cable
5. Heat Stabilizer for PVC plate, sheets
6. Heat Stabilizer for PVC film

BX Heat Stabilizer Product list

Brochure

plastic additive brochure baoxu chemical

Sample and Inquiry

Please contact our online sales or mail at info@additivesforpolymer.com for a sample and general inquiries.