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Liquid rare earth calcium zinc stabilizer and preparation method thereof

The technology of zinc stabilizer and rare earth calcium is applied in the field of liquid rare earth calcium zinc stabilizer for PVC resin and its preparation field, which can solve the problems of poor initial coloring, affecting product quality stability, easy precipitation when the dosage is large, and achieves lubricating performance. Excellent, combined with antioxidant properties and stable process conditions

Inactive Publication Date: 2008-06-18
高春福
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are still some heavy metals in this rare earth composite stabilizer, which is not an environmentally friendly substance, and it is mentioned in the production process that a simple physical and mechanical mixing method is used, which causes the mixture to affect the quality and stability of the product.
[0005] In addition, a large number of experiments and applications have proved that pure rare earth compounds have excellent long-term stability, but their initial coloring is poor, and they are easy to precipitate when used in large amounts. Moreover, some rare earths make the product appear rose red, so they cannot be used alone as the main stabilizer. It can only be used with synergistic additives

Method used

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  • Liquid rare earth calcium zinc stabilizer and preparation method thereof
  • Liquid rare earth calcium zinc stabilizer and preparation method thereof
  • Liquid rare earth calcium zinc stabilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Add 193kg of isooctanoic acid, 131kg of oleic acid and 86kg of p-tert-butylbenzoic acid into the reaction kettle. Heat up to 80°C to 100°C, add 5kg of mixed catalyst with a mass ratio of acetic acid and phosphorous acid of 2:3 under stirring (stirring speed 85-115 rpm), after the material is completely melted, slowly add light rare earth oxidation Lanthanum 12kg, reacted for 0.5 hours, zinc oxide 69kg, stirred and reacted for 1 hour (stirring speed 85~115 rpm), calcium hydroxide 35kg, continued to react for 0.5 hours, controlled temperature 110°C, then added 220kg of higher alkanes, at 100°C Temperature, 27.66kpa negative pressure, and 0.5 hour of pumping time to remove water and low molecular impurities to obtain a liquid rare earth calcium zinc mixture.

[0036] 2. Add 80kg of epoxidized soybean oil, 160kg of monophenyldioctyl phosphite, 25 parts of bisphenol A and 1010 of antioxidant to the prepared liquid rare earth calcium-zinc mixture, totaling 30kg, twelve to ...

Embodiment 2

[0039] 1. Put 200kg of phthalic anhydride and isooctyl alcohol in a molar ratio of 1:1 into the reactor, heat up to 130-140°C, start stirring (stirring speed 85-115 rpm), carry out esterification reaction, measure The reaction is completed when the acid value is 190-200 mg·KOH / g. Then add 173kg of isooctanoic acid, 122kg of oleic acid, 25kg of lauric acid, 103kg of benzoic acid, 7kg of mixed catalyst with a mass ratio of acetic acid and hydrogen peroxide of 5:2, stir and mix (stirring speed 85~115 rpm), control the reaction temperature 110°C , put 12kg of rare earth cerium oxide and 20kg of lanthanum oxide into the reactor in turn, and react for 0.5 hours; 15kg of zinc oxide, react for 0.5 hours; Kpa negative pressure, 0.5 hours of vacuuming to remove moisture and low molecular impurities, that is, liquid rare earth calcium zinc mixture.

[0040] 2. Add 40kg of effective substances epoxidized soybean oil, 200kg of triphenyl phosphite, 25kg of bisphenol A, 20kg of cetyl alcoho...

Embodiment 3

[0042] Embodiment 3 (comparative example):

[0043] Add 62kg of rare earth compound, 415kg of zinc compound, 330kg of calcium compound, 30kg of epoxy soybean oil, 78kg of phenylenedioctyl phosphite, 20kg of bisphenol A, 25kg of dodecyl alcohol, white 35kg of oil, heated up to 110°C, stirred for 1 hour (stirring speed 85-115 rpm), at 100°C, 27.66kpa negative pressure, vacuumed for 0.5 hours to remove a small amount of water and low-molecular impurities, press filter Packing, the liquid rare earth calcium zinc stabilizer is obtained.

[0044] Product analysis indicators: metal content (%): 6.50, specific gravity (20°C) 0.93, color (Pt-Co): <300

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Abstract

The present invention provides liquid rare-earth calcium-zinc stabilizer and the preparation method. The liquid rare-earth calcium-zinc stabilizer is compound made of rare-earth calcium-zinc compound and effectively cooperative material. The beneficial effects of the liquid rare-earth calcium-zinc stabilizer and the preparation method provided by the present invention is mainly shown in that (1) the liquid rare-earth calcium-zinc stabilizer has the advantages of high product quality, no toxin, environmental protection, no toxic heavy metal component in recipe, strong practicability and wide application range, which is particularly applicable to the transparent packaging material of food, candy and medicine, as well as the advantages of good processing performance, no precipitation, excellent lubricating performance, superior transparency, thermal stability and oxidation resistance; (2) the process condition is stable and easy to control, thus being applicable to industrialized mass production; the process flow has the advantages of simplicity, environment friendliness, easy access to raw materials and less energy consumption, thus greatly decreasing the production cost; in addition, the whole production process has anhydrous operation, safety and convenience, no discharge of three wastes and less environmental pollution.

Description

(1) Technical field [0001] The invention relates to a liquid rare earth calcium-zinc stabilizer and a preparation method thereof, in particular to a liquid rare earth calcium-zinc stabilizer for PVC resin and a preparation method thereof. (2) Background technology [0002] As we all know, PVC is easy to decompose under processing temperature conditions, and a stabilizer must be added to make it process smoothly. The stabilizers widely used in industry today mainly include basic lead salts, metal soaps (Ba, Cd, Pb, Zn), organotin compounds and their composite stabilizer varieties. Because environmental, health and safety issues are getting more and more attention, lead and cadmium compounds are more toxic to human health and cause environmental pollution; calcium and zinc stabilizers have poor stability; organotin compounds are expensive and have bad smell , only a few varieties are non-toxic. [0003] In recent years, due to the increase in the amount of PVC materials, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/02C08L27/06
Inventor 高路垠高春福
Owner 高春福
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