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A kind of mixed anionic zinc monomer and its composition and application

An anion and composition technology, applied in the direction of zinc organic compounds, etc., can solve the problems of less research on calcium and zinc stabilizers, and achieve good anti-oxidation, improved thermal stability, and good compatibility.

Active Publication Date: 2021-07-13
ZHEJIANG TRANSFAR WHYYON CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are still few relevant studies on calcium zinc stabilizers for transparent PVC

Method used

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  • A kind of mixed anionic zinc monomer and its composition and application
  • A kind of mixed anionic zinc monomer and its composition and application
  • A kind of mixed anionic zinc monomer and its composition and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Put 106g of mercaptopropionic acid, 186g of lauryl alcohol, and 2g of sodium bisulfate into the reactor, stir, heat up to 112°C, and continue to react for 3 hours at a vacuum of -0.06MPa, remove the generated water, and then wash to remove sodium bisulfate. Dehydration to obtain 274g of lauryl mercaptopropionate; mix the above reaction product with 284g of stearic acid for 30 minutes, put in 40g of zinc oxide and keep it warm at 105°C for 2.5 hours, dehydrate and dry to obtain 1# zinc monomer. After determination, the zinc content is 5.1 %.

Embodiment 2

[0031] Put 106g of mercaptopropionic acid, 214g of palmitic alcohol, and 2g of sodium bisulfate into the reactor, stir, heat up to 115°C, and continue to react for 3 hours at a vacuum of -0.06MPa, remove the generated water, and then wash to remove sodium bisulfate. Dehydration to obtain 302g of lauryl mercaptopropionate; mix the above reaction product with 284g of stearic acid for 30 minutes, put in 40g of zinc oxide and keep it warm at 105°C for 2.5 hours, dehydrate and dry to obtain 2# zinc monomer. After determination, the zinc content is 4.9 %.

[0032] 2. Preparation of compositions containing mixed anionic zinc monomers

Embodiment 3

[0034] A composition containing mixed anion zinc monomer, said composition is processed by the following components: 1# zinc monomer 15g, trioctadecyl phosphite 20g, antioxidant tetrakis[methyl - 5 g of β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 2 g of dibenzoylmethane, and 40 g of magnesium aluminum hydrotalcite.

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Abstract

The invention discloses a mixed anionic zinc monomer, its composition and application. The present invention utilizes the esterification reaction to connect the carboxyl group in the mercaptopropionic acid molecule with the hydroxyl group in the fatty alcohol to form a fatty alcohol mercaptopropionate, then melt and mix the fatty alcohol mercaptopropionate with stearic acid, and react with zinc oxide to obtain Zinc with mixed anionic structure. The zinc monomer compound of the present invention introduces a mercaptan structure, which can effectively decompose peroxides and has a good antioxidant effect; the composition comprising the mixed anion zinc monomer can be significantly improved by adding it to PVC. Thermal stability, self-lubrication and transparency of PVC.

Description

technical field [0001] The invention relates to a stabilizer for transparent PVC, in particular to a mixed anionic zinc monomer for transparent PVC, its composition and application. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose plastics, and its global output is second only to polyethylene IV, ranking second. Compared with other general-purpose resins, its inherent thermal stability is poor, and its products are prone to darkening and performance degradation during processing and molding, which limits its own application and development. Therefore, appropriate stabilizers should be added during processing . At present, widely used PVC heat stabilizers include lead salts, organotins, metal soaps and rare earths. In the face of increasingly stringent environmental regulations, research and development of new environmentally friendly PVC heat stabilizers has become an inevitable trend. [0003] The earliest heat stabilizer used in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/37C08K13/02C08L27/06C07F3/06
CPCC07F3/06C08K5/37C08K13/02C08L27/06
Inventor 瞿英俊童敏伟丁礼源胡奋奋谭莉莉
Owner ZHEJIANG TRANSFAR WHYYON CHEM
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