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A kind of environment-friendly compound organotin heat stabilizer and preparation method thereof

A heat stabilizer and organotin technology, which is applied in the field of environment-friendly compound organotin heat stabilizer and its preparation, can solve problems such as not being able to be used alone, limited application, poor thermal stability, etc.

Active Publication Date: 2019-07-05
GUANGZHOU LANDNOK CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lead salt heat stabilizers are the earliest heat stabilizers developed. They have good long-term heat stability and are cheap, but lead is a toxic substance, which is not conducive to environmental protection; organotin heat stabilizers can be used for transparent products, but the processing process It has a pungent taste, is expensive, and lacks competitiveness; among metal soap heat stabilizers, lead soap and cadmium soap have good stability, but are toxic; calcium soap and barium soap have poor initial thermal stability, and zinc soap has relatively low initial thermal stability. Good, but the durability is poor, and the phenomenon of "zinc burning" is prone to occur in the later stage, and none of them can be used alone; rare earth heat stabilizers have been widely used in recent years due to their better comprehensive performance, but some of them are also toxic and are subject to Affected by the shortage of rare earth resources, its price is constantly rising, and its application is also limited

Method used

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  • A kind of environment-friendly compound organotin heat stabilizer and preparation method thereof
  • A kind of environment-friendly compound organotin heat stabilizer and preparation method thereof
  • A kind of environment-friendly compound organotin heat stabilizer and preparation method thereof

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preparation example Construction

[0044] In a preferred embodiment, the preparation method of the hyperbranched unsaturated resin graft modified halloysite nanotubes at least comprises the following steps:

[0045] (1) Weigh 5g of halloysite nanotubes, and ultrasonically disperse and dissolve them in 300mL of toluene; add 1g of 3-aminopropyltriethoxysilane after it is completely dissolved, and react at 100°C for 20h; The obtained product is repeatedly washed with acetone, and completely dried under vacuum to obtain a halloysite nanotube modified with a silane coupling agent;

[0046] (2) Thoroughly mix the silane coupling agent-modified halloysite nanotubes obtained in step (1), 1 g of hyperbranched unsaturated resin, and 50 ml of toluene, and ultrasonicate for 60 minutes to fully dissolve and disperse them. After purging oxygen with nitrogen for 30 minutes, the reaction was carried out at 150° C. under strong magnetic stirring for 6 hours. After the reaction, the obtained product was vacuum-filtered and wash...

Embodiment 1

[0060] Embodiment 1 of the present invention provides an environment-friendly composite organotin thermal stabilizer, which at least includes the following components in parts by weight:

[0061]

[0062] The organotin compound is dibutyltin dilaurate;

[0063] The zinc-based stabilizer is zinc stearate;

[0064] The phosphite compound is triisooctyl phosphite;

[0065] Described hydrotalcite is purchased from Nantong Advan Chemical Co., Ltd.;

[0066] Described lubricant is butyl stearate;

[0067] The preparation method of the environment-friendly compound organotin heat stabilizer at least comprises the following steps:

[0068] (1) take each weight part raw material;

[0069] (2) dropping the organotin compound and the zinc-based stabilizer into the reactor to stir;

[0070] (3) When the temperature of the material is raised to 70°C, add a phosphite compound and a lubricant, and continue stirring to make the material uniform;

[0071] (4) When the temperature of t...

Embodiment 2

[0074] Embodiment 2 of the present invention provides an environment-friendly composite organotin thermal stabilizer, which at least includes the following components in parts by weight:

[0075]

[0076] The organotin compound is dibutyltin dilaurate;

[0077] The zinc-based stabilizer is zinc stearate;

[0078] The phosphite compound is triisooctyl phosphite;

[0079] Described hydrotalcite is purchased from Nantong Advan Chemical Co., Ltd.;

[0080] Described lubricant is butyl stearate;

[0081] The preparation method of the environment-friendly compound organotin heat stabilizer at least comprises the following steps:

[0082] (1) take each weight part raw material;

[0083] (2) dropping the organotin compound and the zinc-based stabilizer into the reactor to stir;

[0084] (3) When the temperature of the material is raised to 70°C, add a phosphite compound and a lubricant, and continue stirring to make the material uniform;

[0085] (4) When the temperature of t...

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Abstract

The invention relates to a PVC (polyvinyl chloride) heat stabilizer and a preparation method thereof, in particular relates to an environmental-friendly composite organic tin heat stabilizer and a preparation method thereof. The environmental-friendly composite organic tin heat stabilizer is prepared from at least the following components in parts by weight: 20-80 parts of an organic tin compound,10-50 parts of a zinc-based stabilizer, 1-10 parts of a phosphite compound, 1-10 parts of hydrotalcite and 1-10 parts of a lubricant.

Description

technical field [0001] The invention relates to a PVC heat stabilizer and a preparation method thereof, in particular to an environment-friendly composite organic tin heat stabilizer and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose plastics in the world, with a huge output and a wide range of applications. Polyvinyl chloride (PVC) plastic has the advantages of self-extinguishing, flame retardant, wear-resistant, high strength, good electrical insulation and chemical stability, etc., and it is cheap and widely used. Heat stabilizers must be added to prevent PVC from discoloring and degrading. Correspondingly, the development of PVC heat stabilizers is closely related to the development of polyvinyl chloride products. [0003] However, PVC can generally be processed and formed above 160°C, and it begins to decompose at 120-130°C, releasing HCl gas. If the generation of HCl is not suppressed, the decom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K13/06C08K13/04C08K9/06C08K9/04C08K7/26C08K5/57C08K5/098C08K5/524C08K7/00C08K5/101C08L27/06
CPCC08K5/098C08K5/101C08K5/524C08K5/57C08K7/00C08K7/26C08K9/06C08K9/08C08K13/04C08K13/06C08L2201/08C08L27/06
Inventor 林亨耀
Owner GUANGZHOU LANDNOK CHEM TECH