Liquid compound stabilizer for PVC

1. Liquid barium cadmium and liquid barium cadmium zinc compound approved agent

This type of compound stabilizer is mainly used in the processing of soft PVC products, the basic components include.

(1) barium salt – can be alkylphenol barium, barium 2-ethylhexanoate, barium laurate, barium benzoate and substituted benzoate, barium neodecanoate, etc.. Barium salt in the complex of 6-7%, that is, the ratio with the cadmium salt is about 2: 1-32 (noted by metal, weight percent, the same below).

(2) Cadmium salt – can be 2-ethylhexanoic acid cadmium, cadmium laurate, cadmium oleate, phenyl acid and substituted cadmium benzoate, cadmium naphthenate, cadmium neodecanoate, etc. Cadmium salts account for about 3-4% in the complex.

(3) Zinc salt – can be zinc 2-ethylhexanoate, zinc laurate, zinc naphthenate, zinc neodecanoate, benzoic acid and substituted benzoic acid, etc. Zinc salts make up 0.5-1% of the complex.

(4) Phosphite – it can be triphenyl phosphite, diphenyl mono-octyl phosphite, diphenyl monodecyl phosphite, tris(nonyl phenyl) phosphite, etc. Phosphite ester in the complex of about 15-20% (by weight), as a chelating agent used.

(5) Other – including a small amount of 2,6-ditertiary butyl p-cresol, bisphenol A, nonylphenol and other phenolic antioxidants and ultraviolet absorbers, as well as liquid paraffin, white oil, diesel oil, ingot oil and other mineral oils as solvents, in addition to a small amount of senior alcohol and other defoamers.

Liquid barium cadmium zinc compound stabilizer due to different composition, the nature also varies. But generally is light yellow to yellow clear liquid, specific gravity 0.95-1.02 at room temperature, viscosity less than 100 centipoise, freezing point in -15 ℃ or so. Liquid barium-cadmium and liquid barium-cadmium-zinc are similar in that they have excellent thermal and optical stability, small initial coloring, good transparency and color stability. Their stabilizing effect is stronger than the solid compound soap, so the dosage can be reduced, generally 2-3 parts, no dust poisoning, and in general plasticizer completely dissolved, have good dispersion, precipitation tendency is small. The initial coloring of liquid barium-cadmium-zinc is smaller than liquid barium-cadmium.

2. Liquid barium-zinc complexes

It is generally light yellow to yellow-brown oily liquid, with specific gravity of 1.0-1.1 at room temperature, good heat resistance, not polluted by sulfide, and can be used with epoxy plasticizer to improve the stabilization effect, and it has activation effect on foaming agent.

3、Liquid calcium-zinc compound

The main components of non-toxic liquid calcium and zinc stabilizers are calcium stearate, calcium ricinoleate, zinc stearate, zinc ricinoleate, and epoxidized soybean oil, UV absorbers, etc. Liquid calcium and zinc stabilizers are generally used in organic solvents more easily soluble in the number of carbon less lipid fat calcium and zinc salts.

It is a non-toxic stabilizer for PVC, mainly used as a stabilizer for food packaging film, utensils and foam artificial leather.

It is a non-toxic stabilizer of PVC, mainly used as a stabilizer for food packaging film, utensils and foam artificial leather.