Rare earth and calcium and zinc stabilizer for polychlorovinyl and its preparation

A technology of polyvinyl chloride and zinc stabilizer, applied in the field of rare earth metal stabilizers, can solve the problems of long process flow, poor weather resistance, fluctuation, etc. Effect

Inactive Publication Date: 2005-02-23
GUANG DONG GUANG YANG HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are three types of stabilizers for PVC processing: (1) heavy metal compound stabilizers, including lead, cadmium, etc., such stabilizers have high stabilization efficiency, but are highly toxic, have serious vulcanization pollution, and have poor weather resistance; 2) Light metal compound stabilizers, including calcium, zinc, magnesium and aluminum compounds, etc. Although these stabilizers are non-toxic, they have poor stabilization performance and poor original colorability of objects. The synthesis process of calcium zinc compounds is based on organic acids or esters , soluble calcium or zinc salt as the main indirect method, that is, the saponification synthesis process, the equipment efficiency of this synthesis process is low, the process flow is long, there are many intermediate links, the product quality is not easy to control, the operating cost is high, and the soluble salt used in the raw material And the impurity elements brought by the alkali in the saponification are easy to remain in the product, directly affecting the quality and stability of the product, and a large amount of waste water is discharged during the production process, polluting the environment; (3) rare earth compounds, light rare earths are non-toxic, tasteless, radioactive, and Small, low price, especially its special atomic structure has great advantages as a stabilizer, but a large number of experiments and applications have proved that although pure rare earth compounds have excellent long-

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 6

[0056] In the stainless steel reactor equipped with stirrer, thermometer and heating jacket, add 148Kg stearic acid and 500Kg water, after heating and melting, start the stirrer, add 0.5Kg glacial acetic acid under stirring state; La 2 o 3 4.3Kg, constant temperature reaction for 1 hour, add 51Kg calcium hydroxide and 12Kg zinc oxide, continue to react for 1 hour, then add kaolin 40Kg, react at 90°C for 0.5 hour to obtain rare earth calcium zinc compound. Add 23Kg surfactant sodium stearate again, react 30 minutes; Then add 5.5Kg polyvinyl chloride antioxidant (1010), 5.5Kg DLTP, 27Kg pentaerythritol ester, 11Kg dibenzoyl dibenzoyl that have been mixed and heated to molten state Methane, 1Kg triphenyl phosphite, 25Kg monoglyceride, 38Kg PE wax were stirred at high speed for 10 minutes, then cooled, filtered and dried, and discharged to obtain the final product polyvinyl chloride rare earth calcium zinc stabilizer.

Embodiment 7

[0058] In the stainless steel reactor equipped with stirrer, thermometer and heating jacket, add 32Kg stearic acid and 130Kg water, after heating and melting, start the stirrer, add 0.2Kg glacial acetic acid under stirring state; Add 5Kg of dilanthanum trioxide to the mixture, add 61Kg of calcium hydroxide and 80Kg of zinc stearate after constant temperature reaction for 1 hour, and continue to react for 0.5 hours; then add 47Kg of silica dry soil, react for 0.5 hours at 80°C, and finally centrifuge, and Dry at 105°C for 3 hours to obtain a rare earth calcium zinc compound.

[0059] First add 100Kg of the prepared rare earth calcium zinc compound into the kneader, heat and stir, then add 6.3Kg of styrene-like modifier, mix at 100°C for 10 minutes at high speed, then add 6Kg of bisphenol, 3Kg of bisphenol into the kneader Antioxidant (1076), 30Kg pentaerythritol adipate, 3Kg dibenzoylmethane, stirred for 10 minutes, and discharged to obtain the final product polyvinyl chloride ...

Embodiment 8

[0061] First, mix 10Kg light rare earth lanthanum trioxide compound, 50Kg calcium stearate, 12Kg zinc hydroxide, 4.0Kg glacial acetic acid solution and 120Kg water to form slurry A; In the stainless steel reactor, add 34Kg of lauric acid, 72Kg of stearic acid and 400Kg of water, heat and melt, start the stirrer, add 6.0L of ammonia water with a concentration of 25% under stirring, and slowly add the paddle to the reactor at 80°C For material A, after continuing to react for 2 hours, add 50Kg of clay and react at 80°C for 0.5 hour; finally centrifuge and dry at 105°C for 3 hours to obtain the rare earth calcium zinc compound.

[0062] First, the prepared 100Kg rare earth calcium-zinc compound is added to a kneader, heated and stirred, then 10Kg of organoboride modifier is added, and mixed at a high speed at 100° C. for 10 minutes, and then polyvinyl chloride antioxidant ( 1076) 5Kg, DLTP 5Kg, pentaerythritol adipate 25Kg, triisocyanurate 25Kg, dibenzoylmethane 5Kg, triphenyl ph...

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PUM

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Abstract

Rare-earth and calcium and zinc stabilizing agent for polyethylene is produced by treating rare-earth and calcium and zinc compounds with surface modifying agent, and optimizing with polyethylene and anti-oxidating agent or/and organic tin compounds or organic phosphonite compounds or/and C8 - C22 metal saponified materials of calcium or zinc or magnesium or aluminum or/and ultraviolet absorber or/and urate or/and polyhydroxy esterified materials or/and polyethylene lubricant to be obtained. It has high quality and no toxicity, is produced with low cost and in a simple process.

Description

technical field [0001] The invention relates to a rare earth metal stabilizer for synthetic resins, in particular to a rare earth metal stabilizer for polyvinyl chloride resins and a preparation method thereof. Background technique [0002] There are three types of stabilizers for PVC processing: (1) heavy metal compound stabilizers, including lead, cadmium, etc., such stabilizers have high stabilization efficiency, but are highly toxic, have serious vulcanization pollution, and have poor weather resistance; 2) Light metal compound stabilizers, including calcium, zinc, magnesium and aluminum compounds, etc. Although these stabilizers are non-toxic, they have poor stabilization performance and poor original colorability of objects. The synthesis process of calcium zinc compounds is based on organic acids or esters , soluble calcium or zinc salt as the main indirect method, that is, the saponification synthesis process, the equipment efficiency of th...

Claims

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Application Information

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IPC IPC(8): C08K9/04C08L27/06
Inventor 陈金鹏凌秋灵
Owner GUANG DONG GUANG YANG HI TECH
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