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PVC compound stabilizer and preparation method

A composite stabilizer and main stabilizer technology, which is applied in the field of PVC composite stabilizer and its preparation, can solve the problems of poor material stability, low coloring performance, lead-containing poisonous environment, etc., and achieve good internal and external lubricity and high synergy effect, the effect of improving thermal stability

Active Publication Date: 2016-05-25
SHENZHEN AIMSEA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems existing in the prior art that the PVC stabilizer contains lead and poisons the environment, the stability of the material is not good, and the coloring performance is low, the invention provides a PVC composite stabilizer, and also discloses the PVC composite stabilizer. Preparation

Method used

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  • PVC compound stabilizer and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] This embodiment discloses a PVC composite stabilizer, which is composed of a primary stabilizer with a mass fraction of 85-95% and an auxiliary stabilizer with a mass fraction of 5-15%. In this embodiment, the mass fraction can be selected as 60% of the main stabilizer and 40% of the auxiliary stabilizer, of course, can also be a combination of any range, for example, 70% of the main stabilizer and 30% of the auxiliary stabilizer, The main stabilizer with a mass fraction of 75% and the auxiliary stabilizer with a mass fraction of 25%; the main stabilizer is composed of polyvinylpyrrolidone ((C6H9NO)n), zinc pyrrolidone carboxylate (PCA-Na), and disodium edetate Calcium (C 10 H 12 CaN 2 Na 2 O 8 ), tetraisopropyl titanate (C 12 H 28 O 4 Ti), the auxiliary stabilizer is composed of vinyl bisstearamide (C 38 H 76 N 2 O 2 ), pentaerythritol stearate (C 77 H 148 O 8 ), epoxy linseed oil, mannitol (C 6 H 14 O 6 )composition. Among them, polyvinylpyrrolidone ((C6H9NO)n), zinc p...

Embodiment 2

[0032] The formulation components are the same as in Example 1. The difference from Example 1 is that in the PVC composite stabilizer, polyvinylpyrrolidone ((C6H9NO)n), zinc pyrrolidone carboxylate (PCA-Na), calcium disodium ethylenediaminetetraacetate (C10H12CaN2Na2O8), four The mass fractions of isopropyl titanate (C12H28O4Ti) in the composite stabilizer are: 15%, 25%, 45%, and 10%; vinyl bis-stearamide (C38H76N2O2), pentaerythritol stearate (C77H148O8), ring Oxygen linseed oil and mannitol (C6H14O6) accounted for 1%, 2%, 1%, and 1% of the mass fraction of the composite stabilizer, respectively.

[0033] As a further preference, the PVC composite stabilizer is added with a rare earth stabilizer, and the rare earth stabilizer accounts for 6% of the weight of the PVC composite stabilizer, wherein the rare earth stabilizer is yttrium stearate or yttrium maleamic acid or yttrium isooctanoate. The additional rare earth stabilizer is either yttrium stearate, yttrium maleamic acid or...

Embodiment 3

[0037] The formulation components are the same as in Example 1. The difference from Example 1 is that in the PVC composite stabilizer,

[0038] Polyvinylpyrrolidone ((C6H9NO)n), zinc pyrrolidone carboxylate (PCA-Na), calcium disodium edetate (C10H12CaN2Na2O8), and tetraisopropyl titanate (C12H28O4Ti) accounted for the mass fractions of the composite stabilizer, respectively : 15%, 25%, 35%, 15%; vinyl bis-stearamide (C38H76N2O2), pentaerythritol stearate (C77H148O8), epoxy linseed oil, mannitol (C6H14O6) accounted for the mass fraction of composite stabilizer Respectively: 2%, 3%, 2%, 3%.

[0039] The PVC composite stabilizer is also added with rare earth stabilizer and modifier indium acetate: the rare earth stabilizer is a mixture of yttrium stearate, yttrium maleamic acid, and yttrium isooctanoate. The rare earth stabilizer accounts for 4.2 of the quality of the PVC composite stabilizer. %, its composition and component ratio are the same as in Example 2. The added modifier i...

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Abstract

The invention provides a PVC compound stabilizer. The PVC compound stabilizer is characterized by being composed of, by mass, 85-90% of a main stabilizing agent and 5-15% of a subsidiary stabilizing agent; the main stabilizing agent is composed of polyvinylpyrrolidone, bis(5-oxo-L-prolinato-N1,O2) zinc, calcium disodium ethylenediamine tetraacetate and titanium tetraisopropanolate, and the subsidiary stabilizing agent is composed of N,N-ethylene bis-stearamide, pentaerythrityl tetrastearate, epoxidized linseed oil and mannitol. The invention further discloses a preparation method of the PVC compound stabilizer. The PVC compound stabilizer has the advantages of being free of toxin, environmentally friendly, good in lubricity and the like, is high in thermal stability, high in transparency, high in impact resistance and high in profile welded corner strength, can reduce damage to PVC molecules caused by ultraviolet light, improve outdoor aging performance of a product and further has good internal and external lubricating properties, and processing can be conducted stably.

Description

Technical field [0001] The invention relates to a PVC composite stabilizer and a preparation method thereof, and belongs to the technical field of composite material preparation. Background technique [0002] Polyvinyl chloride (PVC) is one of the most widely used synthetic resins in the world. Its products are widely used in various fields of production and life due to its many excellent properties. However, PVC is a high molecular weight polymer containing many chlorine atoms in the molecular chain. Due to the obvious uneven distribution of chlorine atoms and the electron cloud in the entire molecular chain, the molecular chain has serious defects. This results in the removal of HCl from PVC above 110°C, and thermal degradation reaction occurs. Since PVC has fluidity only above 140°C, heat stabilizers must be added to ensure smooth processing of PVC. Currently commonly used lead salts and organotin heat stabilizers have certain toxicity and pollute the environment. As people’s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L39/06C08K5/00C08K5/3415C08K5/17C08K5/10C08K5/20C08K5/103C08K5/1515C08K5/053C08K5/098
CPCC08L27/06C08L2201/08C08L39/06C08K5/00C08K5/3415C08K5/17C08K5/10C08K5/20C08K5/103C08K5/1515C08K5/053C08K5/098
Inventor 严一丰严晴
Owner SHENZHEN AIMSEA IND
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