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Antimony mercaptide composite heat stabilizer and preparation method thereof

A composite heat stabilizer and antimony thiol technology, which is applied in the antimony thiol composite heat stabilizer and its preparation field, can solve the problems of poor long-term stability and anti-ultraviolet effect, single antimony thiol component, and poor product transparency. , to achieve good anti-oxidation performance, good anti-yellowing effect, and the effect of inhibiting initial coloring

Inactive Publication Date: 2016-11-09
ZHEJIANG HIMPTON NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing antimony mercaptan heat stabilizer can only exert its initial performance and transparency when it is used in a low dosage and compounded with organotin. When used alone, there are still long-term stabilizers and poor anti-ultraviolet effects, and the product has poor transparency and Easy to yellow and other problems
[0003] U.S. patent US2684956, and Chinese patents CN1036921C and CN 102584656B disclose the synthesis process of mercaptan antimony compounds. The synthesized mercaptan antimony compound has a single component, and the defects of the product itself have not been solved.
U.S. Patents US3919168, US4029618 and US4391757 respectively proposed solutions to single problems such as thermal stability, storage stability and UV resistance of compounds, but still did not solve the application of a single antimony mercaptide instead of organotin in PVC transparent products. The industrial application of antimony mercaptide still needs to be used in combination with organic tin
The development of mercaptan antimony compound heat stabilizer has not been reported

Method used

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  • Antimony mercaptide composite heat stabilizer and preparation method thereof
  • Antimony mercaptide composite heat stabilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Take 68g of antimony penta(isooctyl thioglycolate) and 14.3g of antimony tris(isooctyl thioglycolate) into the reaction kettle, control the stirring speed at 100r / min, control the temperature at 120°C, and the reaction time is 1h, then put into the reaction kettle Zinc tert-butylbenzoate 2.5 g, 2-hydroxy-4-n-octyloxybenzophenone and 2-(2H-benzotriazol-2-yl)-6-(dodecyl)-4- 1.8g of a mixture of methylphenol at a mass ratio of 2:1, 4.5g of diphenyl phosphite, 1.6g of tetraisopropyl bis(dioctylphosphite acyloxy) titanate, 4.5g of glycerol partial fatty acid complex ester , 2.8g of dipentaerythritol trioctyl phosphite, stirred and mixed, controlled the stirring speed at 80r / min, controlled the temperature at 65°C, and the reaction time was 1h, then cooled to room temperature, and filtered to obtain 100kg of antimony thiol composite heat stabilizer.

Embodiment 2

[0056]Take 58g of antimony penta(isooctyl thioglycolate) and 23g of antimony tris(isooctyl thioglycolate) into the reaction kettle, control the stirring speed at 110r / min, control the temperature at 110°C, and the reaction time is 1.5h, then put into the reaction kettle 2.9g of zinc tert-butylbenzoate, 2.2g of 2-hydroxy-4-n-octyloxybenzophenone, 3.8g of a mixture of diphenyl phosphite and diisooctyl phosphate in a mass ratio of 1:1, tetravinyl Tris (2-methoxyethoxy) silane 2.0g, isooctyl stearate 5.5g, tetraphenyl dipropylene glycol diphosphite 2.6g, stir and mix, control stirring speed at 90r / min, control temperature at 75°C, the reaction time is 1.5h, then cooled to room temperature, and filtered to obtain 100kg of mercaptan antimony composite heat stabilizer.

Embodiment 3

[0058] Take 51.2g of antimony penta(isooctyl thioglycolate) and 24g of antimony tris(isooctyl thioglycolate) into the reaction kettle, control the stirring speed at 120r / min, control the temperature at 100°C, and the reaction time is 2h, then put into the reaction kettle Zinc tert-butylbenzoate 3.2g, 2-(2H-benzotriazol-2-yl)-6-(dodecyl)-4-methylphenol 2.5g, diisooctyl phosphate 5.8g, tetra 2.2 g of isopropyl bis (dioctyl phosphite acyloxy) titanate and vinyl tris (2-methoxyethoxy) silane in a mass ratio of 1:1, 8.5 g of glycerol partial fatty acid complex ester, 2.6 g of dipentaerythritol trioctyl phosphite was stirred and mixed, the stirring speed was controlled at 100 r / min, the temperature was controlled at 85 ° C, the reaction time was 2 h, then cooled to room temperature, and filtered to obtain 100 kg of mercaptan antimony composite heat stabilizer.

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Abstract

The invention relates to an antimony mercaptide composite heat stabilizer and a preparation method thereof, in particular to an antimony mercaptide composite heat stabilizer for PVC transparent products and a preparation method of the heat stabilizer. The heat stabilizer is prepared from, by weight, 49-68 parts of antimony pent(iso-octyl thioglycollate), 14-24 parts of antimony tri(isooctyl-thioglycalate), 2.3-3.2 parts of PTBBA, 1.6-2.5 parts of ultraviolet absorbent, 3.8-5.9 parts of anti-precipitation agent, 1.5-2.4 parts of surface promoter, 4-9 parts of lubricating agent and 1.5-3.5 parts of antioxidant. The heat stabilizer is the antimony mercaptide composite heat stabilizer, various auxiliaries are added, and performance of a traditional antimony mercaptide heat stabilizer is improved. Heat stabilizer products have excellent primary and long-time heat stability and are good in anti-ultraviolet effect, prepared PVC products are high in transparency, good in anti-yellowing effect and good in anti-oxidation performance and do not precipitate, and the PVC products accord with environment-friendly RoHS instructions.

Description

technical field [0001] The invention relates to a thiol-antimony composite heat stabilizer and a preparation method thereof, in particular to a thiol-antimony composite heat stabilizer for PVC transparent products and a preparation method thereof. Background technique [0002] Mercaptan antimony stabilizer has good initial coloring performance, cheap price, low toxicity, etc. It is a good substitute for expensive organotin heat stabilizers at present. However, the existing antimony mercaptan heat stabilizer can only exert its initial performance and transparency when it is used in a low dosage and compounded with organotin. When used alone, there are still long-term stabilizers and poor anti-ultraviolet effects, and the product has poor transparency and Easy to yellow and other problems. [0003] US patent US2684956, and Chinese patents CN1036921C and CN 102584656B disclose the synthesis process of antimony thiol compounds. The antimony thiol compound synthesized has a sing...

Claims

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Application Information

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IPC IPC(8): C08K5/372C08K5/098C08K5/132C08K5/3475C08K5/526C08K5/521C08K5/5425C08K5/101C08K5/524C08L27/06
CPCC08K5/372C08K5/098C08K5/101C08K5/132C08K5/3475C08K5/521C08K5/524C08K5/526C08K5/5425C08K2201/014C08L27/06C08L2201/08
Inventor 唐伟瞿英俊高尔金陈建军廖永林
Owner ZHEJIANG HIMPTON NEW MATERIAL