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Magnesium-aluminum-zinc modified non-toxic compound stabilizing agent for PVC (Polyvinyl Chloride) pipe fitting injection molding

A composite stabilizer, magnesium-aluminum-zinc technology, applied in the field of stabilizers, can solve the problems of poor injection molding process, excessively high PVC material, affecting plasticizing performance, etc., to improve compatibility, improve environmental performance, and plasticizing performance Good results

Active Publication Date: 2013-03-27
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] In the injection molding production process of PVC pipe fittings, because PVC is a heat-sensitive material, its injection molding process is poor. The reason is that the high melt temperature or long heating time can easily decompose the PVC material and affect its plasticization. performance

Method used

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  • Magnesium-aluminum-zinc modified non-toxic compound stabilizing agent for PVC (Polyvinyl Chloride) pipe fitting injection molding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 The following raw materials and steps are used to prepare the magnesium-aluminum-zinc modified non-toxic composite stabilizer for PVC pipe fittings injection molding according to the present invention:

[0021] 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;

[0022] 2. Preparation of polymeric ester-based calcium: premix 182Kg of adipic acid and 218Kg of pentaerythritol and put them into the reactor evenly. When the reaction temperature reaches 140℃, add 0.9 Kg of SO 4 2- / SnO 2 -SiO 2 Solid super ...

Embodiment 2

[0026] Example 2 The following raw materials and steps are used to prepare the magnesium-aluminum-zinc modified non-toxic composite stabilizer for PVC pipe fittings injection molding according to the present invention:

[0027] 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;

[0028] 2, the preparation of polymer: adopt the polymer ester-based calcium prepared in Example 1;

[0029] 3. Preparation of stabilizer:

[0030] (1) Weigh the following raw materials according to the formula: fatty acid calcium zinc composition 2...

Embodiment 3

[0032] Example 3 Adopt the following raw materials and steps to prepare the magnesium-aluminum-zinc modified non-toxic composite stabilizer for PVC pipe fittings injection molding according to the present invention: 1, 1000Kg of stearic acid and 500Kg of 12-hydroxystearic acid are put into the reactor, and heated; When the temperature reaches 120°C, add 85Kg of adipic acid into the reaction kettle, and start to slowly add 25Kg of calcium oxide into the reaction kettle, and then slowly add 210Kg of zinc oxide to complete the feeding; after completing the feeding, keep the reaction at 170°C for 1.5 hours After the reaction is completed, add 80Kg of 16-18 alcohol to the reactor, stir well, then discharge, cool and grind to obtain the fatty acid calcium-zinc composition;

[0033] 2. Preparation of high molecular weight calcium ester: adopt Example 1 to prepare high molecular weight calcium calcium;

[0034] 3. Preparation of stabilizer:

[0035](1) Weigh the following raw mate...

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Abstract

The invention relates to a magnesium-aluminum-zinc modified non-toxic compound stabilizing agent for PVC (Polyvinyl Chloride) pipe fitting injection molding. The stabilizing agent disclosed by the invention is formed by the following raw materials in a weight ratio: a fatty acid calcium zinc composition, calcium stearate, an antioxidant 1076, acetylacetone calcium or acetylacetone magnesium, hydrotalcite, dehydroacetic acid or sodium dehydroacetate, stearoylbenzoylmethane, macromolecular ester-group calcium, calcium carbonate or talcum powder. The stabilizing agent disclosed by the invention is used for injection molding of a pipe fitting, has good whiteness, excellent stabilizing effect, smooth machining and good plastifying performance, and can realize continuous machining; inner and outer surfaces of the machined pipe fitting are smooth and the mechanical property meets various international requirements; the stabilizing agent is non-toxic and environment-friendly; and the fatty acid calcium zinc composition and the macromolecular ester-group calcium are added into a formula to improve the product compatibility, the machining stability, long-period stability and the like, so that the product has the good comprehensive performance.

Description

technical field [0001] The invention relates to a stabilizer, in particular to a magnesium-aluminum-zinc modified non-toxic composite stabilizer used for injection molding of PVC pipe fittings. 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 prope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/02C08K5/098C08K3/26C08K5/1545C08K3/34C08L27/06C08L67/00C08G63/12
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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