Efficient composite heat stabilizer for pentaerythritol cerium-based PVC and preparation method of heat stabilizer

A technology of compounding heat stabilizer and pentaerythritol, applied in the chemical industry, can solve the problems of restricting the popularization and application of non-toxic and environmentally friendly heat stabilizers, high cost, unsatisfactory heat stabilization effect of heat stabilizers, etc. Precipitation, good stabilization effect

Active Publication Date: 2014-03-12
慧科高新科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] There are many preparation methods of non-toxic heat stabilizers, but the prepared heat stabilizers either have unsatisfactory initial heat stability effects, or have not com

Method used

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  • Efficient composite heat stabilizer for pentaerythritol cerium-based PVC and preparation method of heat stabilizer
  • Efficient composite heat stabilizer for pentaerythritol cerium-based PVC and preparation method of heat stabilizer
  • Efficient composite heat stabilizer for pentaerythritol cerium-based PVC and preparation method of heat stabilizer

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Preparation of pentaerythritol cerium: Weigh 25kg of pentaerythritol and 28kg of cerium carbonate, pulverize and mix them fully with a pulverizer, add to the reaction kettle, then add 0.1kg of acetic acid and stir evenly, heat the oil bath to 190°C, stir while heating, and react 5 Hours later, the material was taken out to cool down, and after crushing, cerium pentaerythritol was obtained.

[0022] Preparation of high-efficiency composite heat stabilizer for pentaerythritol cerium-based PVC: First, add 42kg of pentaerythritol cerium, 12kg of barium stearate and 20kg of calcium stearate into the reaction kettle and mix them thoroughly, then take the mixed materials, add them to a kneader and knead at 100°C After 25 minutes, 25kg of paraffin wax, 4kg of stearyl benzoylmethane, 3kg of triphenyl phosphite and 3kg of bisphenol A were successively added to the kneader, kneaded and stirred for 30 minutes, discharged, sieved and packaged to obtain the final product.

Embodiment 2

[0024] Preparation of pentaerythritol cerium: Weigh 20kg of pentaerythritol and 21kg of cerium carbonate, pulverize and mix them fully with a pulverizer, add to the reaction kettle, then add 0.2kg of acetic acid and stir evenly, heat the oil bath to 190°C, stir while heating, and react 4 Hours later, the material was taken out to cool down, and after crushing, cerium pentaerythritol was obtained.

[0025] Preparation of environment-friendly and high-efficiency composite heat stabilizer for pentaerythritol cerium-based PVC: First, add 30kg of pentaerythritol cerium, 10kg of barium stearate and 30kg of calcium stearate into the reaction kettle and mix them thoroughly. Knead for 30 minutes, then sequentially add 30kg of paraffin wax, 4kg of stearyl benzoylmethane, 3kg of triphenyl phosphite and 3kg of bisphenol A into the kneader, knead and stir for 35 minutes, discharge, sieve and pack to obtain the final product.

Embodiment 3

[0027] Preparation of cerium pentaerythritol: Weigh 35kg pentaerythritol and 38kg cerium carbonate, pulverize and mix them fully with a pulverizer, add to the reaction kettle, then add 0.4kg acetic acid and stir evenly, heat the oil bath to 170°C, stir while heating, reaction 4.5 Hours later, the material was taken out to cool down, and after crushing, cerium pentaerythritol was obtained.

[0028] Preparation of environment-friendly and high-efficiency composite heat stabilizer for pentaerythritol cerium-based PVC: First, add 40kg of pentaerythritol cerium, 15kg of barium stearate and 25kg of calcium stearate into the reaction kettle and mix them thoroughly. Knead for 20 minutes, then sequentially add 20kg of paraffin wax, 6kg of stearyl benzoylmethane, 3kg of triphenyl phosphite and 3kg of bisphenol A into the kneader, knead and stir for 40 minutes, discharge, sieve and pack to obtain the final product.

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Abstract

The invention belongs to the technical field of chemical engineering, and particularly relates to an efficient composite heat stabilizer for pentaerythritol cerium-based PVC and a preparation method of the heat stabilizer. The efficient composite heat stabilizer is prepared from the following raw materials in weight part: 30-50 parts of pentaerythritol cerium, 10-15 parts of barium stearate, 20-30 parts of calcium stearate, 20-30 parts of a lubricant and 10-15 parts of an auxiliary heat stabilizer. The preparation method comprises the following steps: firstly the pentaerythritol cerium, barium stearate and calcium stearate are added into a reaction kettle for fully mixing, the well mixed material is added into a kneading machine and kneaded for 20-30 minutes at the temperature of 100-120 DEG C, then the lubricant and the auxiliary heat stabilizer are added into the kneading machine, and kneaded and mixed for 30-40 minutes, the material is discharged, and the tabletting, sieving and packing are performed, so that the efficient composite heat stabilizer is obtained. The efficient composite heat stabilizer prepared through the preparation method has the characteristics that the heat stabilizer is difficult to separate out, excellent in stability, low in cost, non-toxic and environmentally friendly, and the raw material is easy to obtain. The preparation method provided by the invention causes no pollution, is low in energy consumption, is scientific, reasonable and simple, and is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a high-efficiency composite heat stabilizer for pentaerythritol cerium-based PVC and a preparation method thereof. Background technique [0002] PVC (polyvinyl chloride) is an extremely widely used material. After its practical breakthrough in 1933, with the pace of industrialization, its application has become wider and wider, and its annual output has increased. Although PVC has a wide range of uses, its service life is very short, causing a lot of waste. Scientists have been trying various methods to prolong the service life of PVC, among which adding heat stabilizers is a cost-effective method. Heat stabilizer is a chemical additive that can inhibit the degradation and discoloration of PVC caused by heat and light during processing and use. Commonly used heat stabilizers include lead salt stabilizers, metal soaps, organotin compounds, organic stabilize...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K5/00C08K5/057C08K5/098C08K5/01C08K5/526C08K5/13C08K5/07C07C31/28C07C29/70
Inventor 李德刚唐守余
Owner 慧科高新科技股份有限公司
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