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A calcium-zinc composite heat stabilizer, a preparation method thereof and applications thereof

A composite heat stabilizer and reaction technology, which is applied in the direction of organic chemistry, can solve the problems of poor stability of calcium-zinc composite stabilizers, achieve good thermal stability effects, high-efficiency stable functions, and reduce costs

Inactive Publication Date: 2014-06-04
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the shortcomings of poor stability of existing calcium-zinc composite stabilizers, the present invention provides a novel calcium-zinc composite heat stabilizer for use in the field of PVC processing

Method used

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  • A calcium-zinc composite heat stabilizer, a preparation method thereof and applications thereof
  • A calcium-zinc composite heat stabilizer, a preparation method thereof and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0026] Put 21.9g of zinc acetate dihydrate, 48.2g of bis(epoxypropyl)isocyanurate, and 150g of water into a reaction kettle, stir evenly, and reflux for 2 hours. During the reaction, a sodium hydroxide solution with a mass concentration of 10% was added dropwise to adjust the pH of the reaction mixture so that the pH was maintained at 7. After the reaction, cool to room temperature, filter, wash the filter cake with distilled water (200mL×3), put it in a blast oven, and dry it at 100°C to obtain the product zinc di(epoxypropyl)isocyanurate. Feed the prepared zinc bis(epoxypropyl)isocyanurate, calcium stearate, and various auxiliary stabilizers according to the formula ratio, and stir and mix in a high-speed mixer, stir and heat up to 100°C , stirring speed 60r / min, after stirring for 10min, the composite calcium-zinc heat stabilizer of the present invention was obtained, and the feed intake of each raw material is shown in Table 1.

[0027] Table 1 The raw material feeding am...

Embodiment 5～8

[0033]Put 143.5g of zinc sulfate heptahydrate, 38.7g of cyanuric acid, and 150g of water into the reaction kettle, stir evenly, and reflux for 2 hours. During the reaction, sodium hydroxide solution with a mass concentration of 10% was added dropwise to adjust the pH of the reaction mixture so that the pH was maintained at 9. After the reaction, cool to room temperature, filter, wash the filter cake with distilled water (300mL×3), put it in a blast oven, and dry it at 120°C for 2 hours to obtain the product basic zinc cyanurate. Feed the prepared basic zinc cyanurate, calcium stearate, and various auxiliary stabilizers according to the formula ratio, and stir and mix in a high-speed mixer, stir and heat up to 100°C, stir at a speed of 60r / min, and stir for 10min. The composite calcium-zinc heat stabilizer involved in the present invention is obtained, and the specific feeding amount of each raw material is shown in Table 3.

[0034] Table 3 The raw material feeding amount of ...

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Abstract

The invention discloses a calcium-zinc composite heat stabilizer designed on the basis of a novel zinc salt of an organic acid. The calcium-zinc composite heat stabilizer comprises following raw materials by weight: 30-65 parts of the zinc salt of the organic acid, 25-70 parts of calcium stearate, 5-10 parts of an epoxy compound, 6-12 parts of a urea derivative, 3-9 parts of a phosphite ester compound, 5-12 parts of a polyol monoester compound, 4-8 parts of beta-diketone and 5-10 parts of C12-C18 long-chain fatty acid. The calcium-zinc composite heat stabilizer is simple in preparation process and excellent in heat stabilizing performance, and can be widely used in the field of PVC processing.

Description

(1) Technical field [0001] The invention belongs to the field of polymer material processing, and specifically relates to a calcium-zinc heat stabilizer with excellent heat stability designed on the basis of novel organic acid zinc, its preparation method and its application in the field of polyvinyl chloride processing. (2) Background technology [0002] Polyvinyl chloride (PVC) is the most widely used thermoplastic resin and the second largest general-purpose resin in the world, its output is second only to polyethylene. PVC has excellent mechanical properties, corrosion resistance and chemical resistance, and also has the advantages of good insulation, flame retardancy and high transparency, and can be widely used in industrial construction, agriculture, packaging, electronics, textiles, daily necessities, aviation, Machinery, transportation and public utilities and other fields. However, PVC has poor thermal stability, and heat stabilizers must be added to prevent its d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D405/14C07D251/32C08L27/06C08K5/00C08K5/3492C08K5/1515C08K5/3462C08K5/21C08K5/526C08K5/103C08K5/09
CPCC07D405/14C07D251/32C08K5/00C08K5/34928C08L27/06
Inventor 陈思王旭徐晓鹏
Owner ZHEJIANG UNIV OF TECH
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