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Arginine metal complex, compound heat stabilizer and application thereof

A technology of metal complexes and heat stabilizers, which is applied in the field of complex heat stabilizers and arginine metal complexes, and can solve the problem that calcium-zinc heat stabilizers cannot have both excellent initial whiteness and long-term stability and other problems, to achieve excellent thermal stability, improve mechanical properties and apparent quality, good initial whiteness and long-term stability

Active Publication Date: 2019-02-01
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 overcome the problem that the existing calcium-zinc heat stabilizers cannot have both excellent initial whiteness and long-term stability, the present invention provides an arginine metal complexing compound that can have both excellent initial whiteness and long-term stability It is beneficial to improve the performance of PVC calcium zinc heat stabilizer and improve the quality of PVC products

Method used

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  • Arginine metal complex, compound heat stabilizer and application thereof
  • Arginine metal complex, compound heat stabilizer and application thereof
  • Arginine metal complex, compound heat stabilizer and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] (1) Weigh 0.4mol of arginine, add 200mL of water, then add 0.2mol of zinc chloride, mix well, add 100mL of lye containing 0.4mol of sodium hydroxide, react at 90°C for 2h, place in 50 Evaporate water for 48 hours under blast conditions at ℃, wash with hot water, and then dry under blast conditions at 50°C for 48 hours to obtain zinc arginine;

[0043] (2) mix and compound according to the following formula raw materials: 2phr zinc arginine, 0.3phr arginine, 0.6phr epoxy soybean oil, 0.4phr polyethylene wax, 0.4phr antioxidant 1010, make compound type heat stabilizer;

[0044] (3) Preparing PVC products: After weighing 100phr of PVC powder, 2phr of compound heat stabilizer prepared in step (2), and 50phr of plasticizer dibutyl phthalate, mix them evenly, and then use a double-roller mixer at 150°C. Mix for 3 minutes at the roller speed of 9rad / min and 11rad / min in the mill; the obtained PVC mixture is pressed into a PVC sheet with a thickness of 1mm on a press at 160°C....

Embodiment 2

[0046](1) Weigh 0.6mol arginine, add 300mL water, then add 0.3mol calcium chloride, mix well, add 150mL lye containing 0.5mol sodium hydroxide, react at 75°C for 2h, place at 75°C Evaporate water for 24 hours under blast conditions at ℃, wash with hot water, and then dry under blast conditions at 75°C for 24 hours to obtain calcium arginine;

[0047] (2) carry out mixing and compounding according to following formula raw material: 2phr calcium arginine, 0.3phr arginine, 0.6phr epoxy soybean oil, 0.4phr polyethylene wax, 0.4phr antioxidant 1010, make compound type heat stabilizer;

[0048] (3) Preparing PVC products: After weighing 100phr of PVC powder, 2phr of compound heat stabilizer prepared in step (2), and 50phr of plasticizer dibutyl phthalate, mix them evenly, and then use a double-roller mixer at 150°C. Mix for 3 minutes at the roller speed of 9rad / min and 11rad / min in the mill; the obtained PVC mixture is pressed into a PVC sheet with a thickness of 1mm on a press at ...

Embodiment 3

[0050] (1) Weigh 0.8mol of arginine, add 400mL of water, then add 0.8mol of magnesium chloride, mix well, add 200mL of lye containing 0.6mol of sodium hydroxide, react at 90°C for 2h, and place in a drum at 100°C Evaporate water for 12 hours under wind conditions, wash with hot water, and then dry at 100°C for 12 hours under blast conditions to obtain magnesium arginate;

[0051] (2) mix and compound according to the following formula raw materials: 2phr magnesium arginate, 0.3phr arginine, 0.6phr epoxy soybean oil, 0.4phr polyethylene wax, 0.4phr antioxidant 168, make compound type heat stabilizer;

[0052] (3) Preparing PVC products: After weighing 100phr of PVC powder, 2phr of compound heat stabilizer prepared in step (2), and 50phr of plasticizer dibutyl phthalate, mix them evenly, and then use a double-roller mixer at 150°C. Mix for 3 minutes at the roller speed of 9rad / min and 11rad / min in the mill; the obtained PVC mixture is pressed into a PVC sheet with a thickness o...

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Abstract

The invention relates to the technical field of polyvinyl chloride heat stabilizers, in particular to an arginine metal complex, a compound heat stabilizer and an application thereof. The compound heat stabilizer comprises components as follows: 2-6 phr of an arginine metal complex, 0-0.9 phr of arginine, 0.3-0.9 phr of an auxiliary stabilizer, 0.4-1.2 phr of a lubricant and 0.4-1.2 phr of an antioxidant. The arginine metal complex is used as a main stabilizer of the compound heat stabilizer for PVC and has good initial whiteness and long-term stability, and the mechanical performance and apparent quality of a PVC product can be improved. The PVC product using the compound heat stabilizer has good initial whiteness and long-term stability, excellent heat stabilization effect and good industrial prospects.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride heat stabilizers, in particular to an arginine metal complex, a composite heat stabilizer and applications thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose plastics. It has low cost, high cost performance, good mechanical properties, acid and alkali corrosion resistance, and excellent flame retardancy. It has a wide range of applications and can be used in agricultural films, Pipes, profiles, daily necessities and other fields. Due to the unstable chloride ions in PVC's own structure, it is easy to remove HCl during processing, resulting in an unstable conjugated double bond structure, resulting in discoloration, degradation, and deterioration of mechanical properties of the material. To address this shortcoming, heat stabilizers need to be added during PVC processing to inhibit or slow down the degradation of PVC during processing. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/00C08L23/06C08K5/00C08K5/134C08K5/17C08K5/12C08J5/18
CPCC08J5/18C08J2327/06C08J2423/06C08J2491/00C08K5/00C08K5/12C08K5/1345C08K5/175C08K2201/014
Inventor 施燕琴王旭鲁淞彦马彪王亚停陈思马猛
Owner ZHEJIANG UNIV OF TECH
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