Transparent phenol-free pasty heat stabilizer and preparing method thereof

A heat stabilizer, phenol paste technology, applied in the field of transparent phenol-free environmentally friendly paste heat stabilizer and its preparation, can solve the problems of limited application, phenol residue, etc., and achieve the effect of enhanced anti-oxidation performance and stability

Active Publication Date: 2016-06-29
DONGGUAN SUNVO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another type of chelating compound, such as distearyl pentaerythritol phosphite (Weston618), has a high content of available phosphorus and a strong ability to decompose hydroperoxides, which effectively inhibits the autoxidation of polymers and delays the aging and degradation of materials. However, because of the use of triphenyl phosphite as a raw material, the product has phenol residues, which limits the application of this type of material in the field of food packaging

Method used

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  • Transparent phenol-free pasty heat stabilizer and preparing method thereof
  • Transparent phenol-free pasty heat stabilizer and preparing method thereof
  • Transparent phenol-free pasty heat stabilizer and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Weigh 4kg distearyl pentaerythritol diphosphite, 8kg diisodecyl pentaerythritol diphosphite, 7kg2,2,4-trimethyl-1,3-pentanediol diisobutyrate, 40kg ring Oxygenated soybean oil is put into the explosion-proof high-speed mixing reactor in turn, the mixing speed is set at 600r / min, and mixed for 7min at 58°C; then 2kg of calcium stearate, 12kg of zinc stearate, and 18kg of magnesium aluminum At the same time, increase the mixing speed to 800r / min, and mix for 15min at 58°C; finally put 5kg of dibenzoylmethane, 4kg of β-(3,5-di-tert-butyl-4-hydroxy Phenyl) n-octadecanyl propionate, mixed at the same speed and temperature for 30 minutes, left to defoam at 58°C for 15 minutes, cooled the material to 35°C, and the transparent phenol-free paste of the present invention can be obtained Paste heat stabilizer.

Embodiment 2

[0051] Weigh 2,2,4-trimethyl-1,3-pentanediol diisobutyric acid of 6kg bis(octadecylaminophosphite) pentaerythritol ester, 8kg diisodecyl pentaerythritol ester of diphosphite, 8kg Ester, 37kg unsaturated fatty acid epoxy ester, put into the explosion-proof high-speed mixing reactor in turn, the mixing speed is set to 600r / min, mix 8min under the condition of 58 ℃; then put 10kg calcium stearate, 12kg zinc laurate in order , 20kg magnesium-aluminum-zinc ternary hydrotalcite, and the mixing speed is increased to 800r / min, and mixed for 20min at 58°C; finally, 4kg stearoylbenzoylmethane and 3kg tetrakis[β-(3 , 5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, mixed at the same speed and temperature for 35 minutes, left to defoam at 58°C for 10 minutes, and cooled to 35°C to obtain The transparent phenol-free paste heat stabilizer of the present invention.

Embodiment 3

[0053] Weigh 5kg di(hexadecanyl alcohol) pentaerythritol diphosphite, 8kg diisodecyl pentaerythritol diphosphite, 11kg diethylene glycol dibenzoate, 32kg epoxy butyl oleate, put into explosion-proof high-speed mixing In the reaction kettle, the mixing speed was set at 600r / min, and mixed for 8min at 58°C; then 4kg calcium stearate, 9kg zinc stearate, 4kg zinc laurate, 20kg magnesium-aluminum binary hydrotalcite were added in order, and at the same time Increase the mixing speed to 800r / min, and mix for 20min at 58°C; finally put 3kg of isovalerylbenzoylmethane, 2kg of stearoylbenzoylmethane, 4kg of β-(3,5-di-tert- Butyl-4-hydroxyphenyl) n-octadecyl propionate, mixed for 30 minutes under the same rotational speed and temperature conditions, left to defoam at 58°C for 10 minutes, and cooled the material to 35°C to obtain the present invention The transparent phenol-free paste heat stabilizer.

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Abstract

The invention relates to the technical field of heat stabilizers, in particular to a transparent phenol-free environment-friendly pasty heat stabilizer and a preparing method thereof. The pasty heat stabilizer is prepared from, by weight, 2-10 parts of calcium salt main stabilizer, 10-25 parts of zinc salt main stabilizer, 12-25 parts of hydrotalcite, 3-12 parts of beta-diketone, 3-10 parts of antioxidant, 8-20 parts of chelation compound, 5-15 parts of viscosity reducer and 32-55 parts of epoxy compound. The pasty heat stabilizer completely meets the phenol-free environment-friendly requirement, transparency and later-stage heat resistance are high, and the prepared product is free of red stain for a long time, high in dispersion mobility and free of lamination; besides, processing range is wide, and the pasty heat stabilizer is suitable for flexible, semi-rigid and high-transparency PVC extrusion and injection molding, and paste resin plastic processing.

Description

technical field [0001] The invention relates to the technical field of heat stabilizers, in particular to a transparent phenol-free, environmentally friendly paste-like heat stabilizer and a preparation method thereof. Background technique [0002] PVC plastic processing is mainly through the processes of stirring and mixing PVC resin base material, plasticizer, heat stabilizer and other materials, high temperature melting, plasticizing and molding, etc., and finally obtains the required products. Among them, the role of heat stabilizers cannot be ignored. [0003] There are many types of heat stabilizers for PVC plastics, including heavy metal lead and cadmium heat stabilizers, calcium-zinc composite heat stabilizers (liquid / powder / paste), organotin heat stabilizers, and organic-based heat stabilizers. Although the performance of lead and cadmium heat stabilizers is good, as the environmental protection requirements at home and abroad become more and more stringent, the ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K3/22C08K5/524C08K5/103C08K5/134C08L91/00C08L91/06
CPCC08K3/22C08K5/103C08K5/1345C08K5/524C08K13/02C08K2003/2227C08K2003/2296C08K2201/014C08L27/06C08L2201/08C08L91/00C08K5/098C08L91/06
Inventor 黄青利陈志峰王万龙黄彦勇
Owner DONGGUAN SUNVO NEW MATERIAL CO LTD
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