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Dedicated Mg-Al-Zn modified non-toxic compound stabilizer for PVC (Poly Vinyl Chloride) pipes

A composite stabilizer and PVC pipe technology, applied in the field of PVC stabilizers, can solve the problems that cannot ignore the production quality requirements, and achieve the effects of improving processing stability and long-term stability, good internal and external lubrication performance, and strengthening initial whiteness

Active Publication Date: 2013-01-16
广东森德利环保新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, while paying attention to the environmental protection performance of stabilizers, we cannot ignore its production quality requirements for different PVC products, such as coloring problems in the initial stage of products, adaptability to product processing, product compatibility, long-term stability, and production cost requirements. The degree of satisfaction or compliance with other requirements, in order to obtain PVC products with good comprehensive performance, high environmental protection performance, high quality and low price

Method used

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  • Dedicated Mg-Al-Zn modified non-toxic compound stabilizer for PVC (Poly Vinyl Chloride) pipes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 The following raw materials and steps are used to prepare the special magnesium-aluminum-zinc modified non-toxic composite stabilizer for PVC pipes of the present invention:

[0019] 1. Preparation of fatty acid calcium zinc composition: put 1500Kg of stearic acid and 230Kg of 12-hydroxystearic acid into the reactor and heat; Slowly add 50Kg of calcium hydroxide to the kettle, then slowly add 275Kg of zinc oxide to complete the feeding; after the completion of feeding, keep the reaction at 170°C for 1.5 hours; after the reaction is completed, add 56Kg of 16-18 alcohol to the reaction kettle, stir Evenly, then discharge, cool and grind to obtain the fatty acid calcium zinc composition;

[0020] 2. Preparation of polymeric ester-based calcium: pre-mix 212 Kg of adipic acid and 232 Kg of pentaerythritol and put them into the reactor evenly. When the reaction temperature reaches 145°C, add 0.8 KgSO 4 2- / TiO 2 -SiO 2 Solid super acid, collect the water relea...

Embodiment 2

[0024] Example 2 The following raw materials and steps are used to prepare the special magnesium-aluminum-zinc modified non-toxic composite stabilizer for PVC pipes of the present invention:

[0025] 1. Preparation of fatty acid calcium zinc composition: put 1700Kg of lauric acid and 400Kg of 12-hydroxystearic acid into the reactor and heat; Slowly add 35Kg of calcium hydroxide, and then slowly add 230Kg of zinc oxide to complete the feeding; after the completion of feeding, keep the reaction at 170°C for 1.5 hours; after the reaction is completed, add 40Kg of 16-18 alcohol into the reaction kettle, and stir , then discharging, cooling and grinding to obtain the fatty acid calcium zinc composition;

[0026] 2. Preparation of polymeric ester-based calcium: the polymeric ester-based calcium prepared in Example 1;

[0027] 3. Preparation of stabilizer:

[0028] (1) Weigh each raw material according to the formula: fatty acid calcium zinc composition 120Kg, calcium stearate 2...

Embodiment 3

[0030] Example 3 The following raw materials and steps are used to prepare the special magnesium-aluminum-zinc modified non-toxic composite stabilizer for PVC pipes of the present invention:

[0031] 1. Preparation of fatty acid calcium zinc composition: put 1000Kg of stearic acid and 500Kg of 12-hydroxystearic acid into the reactor and heat; Slowly add 25Kg of calcium oxide into the kettle, and then slowly add 210Kg of zinc oxide to complete the feeding; after the completion of feeding, keep the reaction at 170°C for 1.5 hours; after the reaction is completed, add 80Kg of 16-18 alcohol into the reaction kettle, and stir , then discharging, cooling and grinding to obtain the fatty acid calcium zinc composition;

[0032] 2. Preparation of polymeric ester-based calcium: the polymeric ester-based calcium prepared in Example 1;

[0033] 3. Preparation of stabilizer:

[0034](1) Weigh the following raw materials according to the formula: fatty acid calcium zinc composition 100...

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Abstract

The invention relates to a dedicated Mg-Al-Zn modified non-toxic compound stabilizer for PVC (Poly Vinyl Chloride) pipes. The stabilizer comprises the following raw materials according to the weight percent: a fatty acid calcium-zinc combination, calcium stearate, an antioxidant 1076, stearoyl benzoyl methane, calcium acetylacetonate or magnesium acetylacetonate, hydrotalcite, dehydroacetic acid or sodium dehydroacetate, high-polymer ester-based calcium g, and calcium carbonate or talcum powder. The stabilizer is suitable for continuous extrusion production of the pipes, small in use amount and low in cost, can be used for extrusion production of hard pipes, and are excellent in stabilizing effect, smooth to process, non-toxic, and high in environmental-friendly performance; the inner surfaces and the outer surfaces of the pipes are smooth, and the mechanical property meets various requirements of the national standard; and PVC products manufactured by the stabilizer are excellent in compatibility, processing stability and long term stability.

Description

technical field [0001] The invention relates to a PVC stabilizer, in particular to a magnesium-aluminum-zinc modified non-toxic composite stabilizer specially used for PVC pipes. Background technique [0002] PVC material has been widely used because of its wide range of uses, good processing performance, low manufacturing cost, corrosion resistance, insulation and other good characteristics. At present, PVC materials and related products can be seen everywhere in people's lives, such as PVC foam materials, PVC stationery, PVC threading pipes, PVC cable insulation, PVC water pipes and other pipes, PVC plastic doors and windows, PVC plastic bags, PVC film, PVC leather etc. In actual use, PVC materials are often added with stabilizers, lubricants, auxiliary processing agents, colorants, impact agents and other additives to make them have excellent stability, toughness, ductility, strength, weather resistance and excellent Excellent physical and chemical properties such as g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L67/00C08K13/02C08K5/098C08K3/26C08K3/34C08G63/12
Inventor 陈肇汉徐军邱丽玲
Owner 广东森德利环保新材料科技有限公司
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