Preparation method of luminescence composite heat stabilizer

A technology of composite thermal stabilizer and auxiliary stabilizer, which is applied in the field of preparation of PVC composite thermal stabilizer, can solve the problems of unsatisfactory thermal stabilization effect, high cost restricting wide application, insufficient thermal stability, etc., and achieve thermal stability Improved effect, extended zinc burn time, and high thermal stability

Inactive Publication Date: 2013-02-27
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lead salts such as tribasic lead sulfate and dibasic lead phosphite are the earliest and most widely used heat stabilizers. They have excellent thermal stability and low price, but they are toxic, not environmentally friendly, and non-lubricating. properties, and its dosage is gradually shrinking; organotin heat stabilizers have good thermal stability, weather resistance and transparency, but their high cost restricts the wide application of organotin heat stabilizers in the PVC field; metal soaps There are mainly barium / cadmium and calcium / zinc systems. The barium / cadmium system has good thermal stability, but is toxic. The calcium / zinc system is non-toxic, meets environmental protection requirements, and has lubricity, but the thermal stability effect is not ideal, especially in In hard products; rare earth heat stabilizers are non-toxic, environmentally friendly, and have the function of brightening, weather resistance, excellent insulation, coupling, toughening, and capacity expansion, but their thermal stability is insufficient, and they are often used to stabilize with other metals. Composite heat stabilizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Mix 33 mL0.5 mol / L europium nitrate solution with 33 mL0.5 mol / L lanthanum nitrate solution to obtain a mixed rare earth nitrate containing europium / lanthanum rare earth ions with a molar ratio of 1:1.

[0041] According to the ratio of rare earth ion: carboxylic acid molar ratio of 1:3, weigh 12.2 g of benzoic acid, dissolve it in 80 mL of 85% ethanol aqueous solution at 65 °C, start stirring, and slowly add 2 mol / L NaOH solution, Adjust the pH to 8.0, and continue saponification with stirring at 65 °C for 0.5 h. Then add 66 mL of mixed rare earth nitrates and react for 2 hours. The product is suction filtered, washed 3 to 4 times, and dried at 90 °C to obtain europium / lanthanum benzoate.

[0042] Add 10 grams of dibasic lead phosphite, 20 grams of tribasic lead sulfate, 18 grams of epoxy calcium oleate, 10 grams of epoxy zinc oleate, 20 grams of europium / lanthanum benzoate, 10 gram of auxiliary stabilizer stearyl benzoylmethane, 5 grams of antioxidant 1010, 12 grams ...

Embodiment 2

[0049] Mix 33 mL of 0.5 mol / L terbium sulfate solution with 33 mL of 0.5 mol / L gadolinium sulfate solution to obtain mixed rare earth sulfate containing terbium / gadolinium rare earth ions with a molar ratio of 1:1. According to the rare earth ion: carboxylic acid molar ratio of 1:3, weigh 17.8 g of p-tert-butylbenzoic acid, dissolve it in 80 mL of 80% ethanol aqueous solution at a temperature of 70 °C, start stirring, and slowly add 1 mol / L NaOH solution, adjust the pH to 8.0, and continue to saponify at 70 °C for 1 h. Add 66 mL of mixed rare earth sulfate and react for 2 h. The product is suction filtered, washed 3 to 4 times, and dried at 80 °C to obtain terbium / gadolinium p-tert-butylbenzoate.

[0050] Add 25 grams of lead dibasic phosphite, 10 grams of tribasic lead sulfate, 10 grams of epoxy calcium oleate, 22 grams of epoxy zinc oleate, and 15 grams of terbium p-tert-butylbenzoate into the kneader in a certain proportion Auxiliary stabilizer mixed with gadolinium, 1...

Embodiment 3

[0057] Mix 22 mL of 0.5 mol / L europium chloride solution with 44 mL of 0.5 mol / L gadolinium chloride solution to obtain a mixed rare earth chloride containing europium / gadolinium rare earth ions with a molar ratio of 1:2.

[0058] According to the ratio of rare earth ion: carboxylic acid molar ratio of 1:3, weigh 17.8 g of p-tert-butylbenzoic acid, dissolve it in 80 mL of 80% ethanol aqueous solution at 60 °C, start stirring, and slowly add 1.5 mol / L NaOH solution, adjust the pH to 8.0, and continue to saponify at 70 °C for 0.5 h. Then 66 mL of mixed rare earth chlorides were added and reacted for 1.5 h. The product was suction filtered, washed 3 to 4 times, and dried at 70 °C to obtain europium / gadolinium p-tert-butylbenzoate.

[0059] Add 20 grams of lead dibasic phosphite, 30 grams of tribasic lead sulfate, 18 grams of epoxy calcium soybean oleate, 10 grams of epoxy zinc oleate, and 25 grams of p-tert-butylbenzoic acid into the kneader in a certain proportion Europium / gado...

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PUM

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Abstract

The present invention discloses a preparation method of a PVC composite heat stabilizer having luminescent property and stability. The luminescence composite heat stabilizer is prepared by taking dibasic lead phosphite, tribasic lead sulfate, epoxy calcium soap, and epoxy zinc soap as main stabilizers, taking aromatic carboxylic acid rare earth as an auxiliary stabilizer and a luminescent component, then adding an appropriate amount of auxiliary stabilizers, antioxidants, and lubricants, and optimistically complexing through the pre-preparation of aromatic carboxylic rare earth and the preparation of luminescence composite heat stabilizer according to the synergistic effect. The luminescence composite heat stabilizer of the present invention has excellent heat stability, and also a good luminescent property, and can be used for preparing various hard and soft PVC photoluminescence materials.

Description

Technical field [0001] The present invention involves a preparation method with PVC composite thermal stabilizers with luminous performance and stability. [0002] Background technique [0003] As one of the five major plastic plastics (PVC), with its good flame retardant, anti -chemical corrosion, abrasion resistance, electrical insulation, low price, etc., it has gradually developed into one of the main chemical building materials in the 21st century.The global PVC market demand has grown rapidly, and the variety of PVC thermal stabilizers has also emerged.At present, the commonly used thermal stabilizers in PVC include lead salt, metal soap, organic tin and rare earth hot stabilizers.Lead salt, such as three -salt -based lead sulfate, two -salt -based sub -phosphate, is the earliest and most widely used thermal stabilizer. It has excellent thermal stability and low prices, but it is poisonous and not environmentally friendly.Sex, its dosage is gradually narrowing; organic tin ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/02C08K3/32C08K3/30C08K5/098C08K5/1515C08L27/06
Inventor 凌启淡林美娟
Owner FUJIAN NORMAL UNIV
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