Polyvinyl chloride heat stabilizer and preparation method thereof

A heat stabilizer and polyvinyl chloride technology are applied in the field of polyvinyl chloride heat stabilizer and its preparation, which can solve problems such as environmental pollution, and achieve the effects of simple preparation process and reliable application productivity.

Active Publication Date: 2013-01-30
太原市塑料研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned deficiencies, the purpose of the present invention is to provide a kind of environment-friendly organic polyvinyl chloride heat stabilizer, which avoids the problem that traditional stabilizers all have different degrees of environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1000 parts of PVC (K=64), 50 parts of epoxidized soybean oil, 4 parts of 1,3-dimethyl-6-aminopyrimidine, 3 parts of calcium stearate, 5 parts of zinc stearate , 6 parts of sodium perchlorate, and 2 parts of tris(2,4-di-tert-butylphenyl) phosphite, and the dry mixture was rolled on an open mill at 180°C for 5 minutes. The rolled sheet was processed into a sheet at 180°C for 1 min, and the yellowness index measured according to ASTM D 1925-70 was 18.88.

[0028] Each serving is 1 gram in this embodiment.

Embodiment 2

[0030] 1000 parts of PVC (K=64), 20 parts of epoxidized soybean oil, 2 parts of 1,3-dimethyl-6-aminopyrimidine, 4 parts of calcium stearate, 4 parts of zinc stearate , 6 parts of sodium perchlorate, and 2 parts of tris(2,4-di-tert-butylphenyl) phosphite, and the dry mixture was rolled on an open mill at 180°C for 5 minutes. The rolled sheet was processed into a sheet at 180°C for 1 min, and the yellowness index measured according to ASTM D 1925-70 was 22.53.

[0031] Each serving is 1 gram in this embodiment.

Embodiment 3

[0033] 1000 parts of PVC (K=64), 20 parts of epoxidized soybean oil, 4 parts of 1,3-dimethyl-6-aminopyrimidine, 5 parts of calcium stearate, 3 parts of zinc stearate , 6 parts of sodium perchlorate, and 2 parts of tris(2,4-di-tert-butylphenyl) phosphite, and the dry mixture was rolled on an open mill at 180°C for 5 minutes. The rolled sheet was processed into a sheet at 180°C for 1 min, and the yellowness index measured according to ASTM D 1925-70 was 17.21.

[0034] Each serving is 1 gram in this embodiment.

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Abstract

The invention discloses a novel environment-friendly type PVC heat stabilizer comprising 1,3-dimethyl-6-Aminouracil as a main stabilizing agent. The novel environment-friendly type PVC heat stabilizer comprises the following ingredients: 1-5weight parts of 1,3-dimethyl-6-Aminouracil, 10-100 weight parts of epoxy soybean oil, 3-10 weight parts of calcium stearate, 3-10 weight parts of zine stearate, and 2-15 weight parts of organic auxiliary agent. According to the invention, the heat stabilizer disclosed herein significantly raises the stability of PVC materials in the processing process; and compared with traditional stabilizing agents, the heat stabilizer disclosed herein contains no heavy metal, and is an environment-friendly efficient novel heat stabilizer.

Description

technical field [0001] The invention relates to a polyvinyl chloride heat stabilizer and a preparation method thereof, belonging to the technical field of polyvinyl chloride (PVC) heat stabilizers. Background technique [0002] At present, the heat stabilizers used in PVC mainly include the following categories: lead salts, metal soaps, organic tin, organic antimony, rare earth, etc. Since the 1980s, countries around the world have successively put forward the requirement to ban the use of lead salt and cadmium salt heat stabilizers. On January 27, 2003, the European Union promulgated the "Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment" (RoHS Directive). In 2004, the announcement of the Ministry of Construction clearly pointed out that the PVC-U water supply pipes used nationwide must be non-lead salt heat stabilizers; the new standard of GB / T 10002.1, which began to be implemented on August 1, 2006, indicated that drinking wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K5/3477C08K5/1515C08K5/098C08K3/24C08K5/526
Inventor 武六旺杨云翠徐华朱晓军亢小丽
Owner 太原市塑料研究所
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