A kind of pasty magnesium-zinc composite heat stabilizer for polyvinyl chloride

A technology of compounding heat stabilizer and polyvinyl chloride, applied in the chemical industry, can solve problems such as poor thermal stability, and achieve the effects of maintaining fluidity, easy operation cost, and excellent thermal stability

CN106496855BActive Publication Date: 2018-09-28台州联成新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-09-28

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Abstract

The invention relates to a polyvinyl chloride paste calcium zinc composite heat stabilizing agent, which includes the raw materials of A group, B group and C group, the A group is the main stabilizing agent, comprising, coupling tert-butylbenzene methane acid zinc: 10% (w / w), Beta-(3, 5-di tert butyl-4-hydroxy phenyl) propionic acid octadecanol ester: 5% (w / w), 6-amino-1, 3-dimethyl uracil: 10% (w / w), magnesium hydroxide: 20% (w / w), the B group is a carrier, comprising, epoxidized soybean oil: 30% (w / w), phosphorous acid 4, 4-di trans bisphenol (12-14) alkyl carbonate: 20% (w / w), the C group is a dispersed suspending agent, comprising, organic montmorillonoid: 1% (w / w), triethanolamine oleate: 4% (w / w). The composite heat stabilizing agent while maintaining fluidity, does not stratify during long period placement, meanwhile the heat stability is excellent, the technology reacts under normal temperature and pressure, is safe and energy saving, is easy to operate and low in cost.
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Description

technical field

[0001] The invention belongs to the technical field of chemical industry, in particular to a paste magnesium-zinc composite heat stabilizer for polyvinyl chloride. Background technique

[0002] Magnesium-zinc composite heat stabilizer for polyvinyl chloride is a non-toxic and environmentally friendly heat stabilizer recognized in the world. It has developed rapidly in recent years, and it is inevitable to replace lead salt heat stabilizers. The current magnesium-zinc composite heat stabilizers are divided into liquid and solid composite heat stabilizers according to their form. PVC paste resin mainly uses liquid heat stabilizers, the main reason is that solid heat stabilizers are difficult to disperse in PVC paste, and paste calcium zinc heat stabilizers are prone to delamination after being placed for a period of time. As we all know, there are fewer raw materials for liquid calcium-zinc heat stabilizers than solid calcium-zinc heat stabilizers. At present,...

Examples

Embodiment

[0023] Weigh 200 kg of zinc p-tert-butylbenzoate, 100 kg of β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, 6-amino-1,3-dimethyl 200 kilograms of base uracil and 400 kilograms of magnesium hydroxide were pulverized to 2-5 microns through a jet mill, and they were called group A for use. In the conical mixer of 3 cubic meters, drop into 600 kilograms of epoxidized soybean oil, 400 kilograms of phosphorous acid 4,4-diisofurylidene bisphenol (12-14) carbon alkyl esters, drop into 20 kilograms of organic montmorillonites under stirring, 80 kg of triethanolamine monooleate was stirred at normal temperature and pressure for 30 minutes. Add the treated Group A, and stir for 60 minutes at normal temperature and pressure. Among them, there are low-speed agitator and high-speed agitator in the cone mixer. Low speed stirring speed: 50 rpm, high speed stirring speed: 500 rpm. Inspection, packing and warehousing.

[0024] test:

[0025] Heat stabilizer samples:

[0026] ...