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A kind of triazole-based composite heat stabilizer for pvc

A technology of composite heat stabilizer and auxiliary heat stabilizer, which is applied in the application field of triazole-based composite heat stabilizer in the field of polyvinyl chloride processing, and achieves the effects of high-efficiency stable function, long-term stability improvement, and high-efficiency expansion of products

Active Publication Date: 2019-04-09
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although triazole-based compounds are widely used, they have never been used in PVC heat stabilizers, and there are few reports on this aspect.

Method used

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  • A kind of triazole-based composite heat stabilizer for pvc
  • A kind of triazole-based composite heat stabilizer for pvc
  • A kind of triazole-based composite heat stabilizer for pvc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0029] 100.00g of PVC powder, 2.00g of 3-amino-1,2,4-triazole / zinc composite heat stabilizer (Example 1, 2), 10.00g of dioctyl phthalate, 3.00g of stearic acid, Calcium carbonate 20.00g. Plasticize into PVC sheets on a double-roller plastic mixer with a roller temperature of 180°C and a roller distance of 1mm.

[0030] 100.00g of PVC powder, 4.00g of 4-amino-1,2,4-triazole / zinc composite heat stabilizer (example 3), 10.00g of dioctyl phthalate, 3.00g of stearic acid, calcium carbonate 20.00g. Plasticize into PVC sheets on a double-roller plastic mixer with a roller temperature of 180°C and a roller distance of 1mm.

[0031] With PVC powder 100.00g, 3,5-diamino-1,2,4-triazole / zinc composite heat stabilizer (example 4) 4.00g, dioctyl phthalate 10.00g, stearic acid 3.00g , calcium carbonate 20.00g. Plasticize into PVC sheets on a double-roller plastic mixer with a roller temperature of 180°C and a roller distance of 1mm.

[0032] The specific formula of the raw material dosa...

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Abstract

The invention discloses a triazolyl / zinc composite thermal stabilizer for PVC (Polyvinyl Chloride). The triazolyl / zinc composite thermal stabilizer for PVC is characterized by consisting of a main stabilizer and an auxiliary thermal stabilizer, wherein the main stabilizer is a triazolyl compound and zinc stearate; the auxiliary thermal stabilizer is one or a mixture of polyhydric alcohols, beta-diketone, epoxy compounds and long-chain fatty acid; the main stabilizer accounts for 40.0-80% by mass; the auxiliary thermal stabilizer accounts for 20-60% by mass; the main stabilizer comprises the following components in parts by mass: 10.0-70.0 parts of the triazolyl compound, and 30.0-90.0 parts of the zinc stearate; the auxiliary thermal stabilizer comprises the following components in parts by mass: 20.0-40.0 parts of the polyhydric alcohols, 20.0-40.0 parts of the beta-diketone, 30.0-50.0 parts of the epoxy compounds and 10.0-20.0 parts of the long-chain fatty acid. The triazolyl / zinc composite thermal stabilizer disclosed by the invention is capable of effectively inhibiting zinc burning, improving the thermal stability of PVC and can be widely applied to the field of PVC processing.

Description

(1) Technical field [0001] The invention belongs to the field of polymer material processing, and in particular relates to the application of a triazole-based composite heat stabilizer with excellent thermal stability 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 degradation during processing. Currently commonly used PVC...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/00C08K5/3472C08K5/098C08K5/053C08K5/09C08L27/06C08K13/02
CPCC08K5/005C08K5/053C08K5/098C08K5/3472C08L27/06C08L2201/08C08L91/00C08K13/02C08K5/09
Inventor 陈思王旭王亚停马猛施燕琴
Owner ZHEJIANG UNIV OF TECH
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