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A light stabilizer composition masterbatch and its preparation method and application

A technology of light stabilizer and hindered amine light stabilizer, which is applied in the preparation of light stabilizer composition masterbatch, the application of light stabilizer composition masterbatch in polymer products, the field of light stabilizer composition masterbatch, It can solve the problems of hindered amine light stabilizer failure, difficult to protect plastic materials, and unsuitable application fields, and achieve the effects of good anti-aging performance, low production cost, and excellent anti-aging effect

Active Publication Date: 2020-03-24
天罡新材料(廊坊)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is expensive and not suitable for all applications
On the other hand, some anti-aging systems that are effective for thicker products greater than 1 mm are not ideal for thin films
This is because the lower the thickness, the shorter the effective optical path of the ultraviolet absorber, and the more difficult it is to protect the plastic material by shielding the ultraviolet rays; at the same time, the lower the thickness, the easier it is for various stabilizers to precipitate, and lose the effect on the material. Protection; the lower the thickness, the easier it is for acidic substances to fully penetrate into the film, causing more hindered amine light stabilizers to fail due to salt formation

Method used

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  • A light stabilizer composition masterbatch and its preparation method and application
  • A light stabilizer composition masterbatch and its preparation method and application
  • A light stabilizer composition masterbatch and its preparation method and application

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Experimental program
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Effect test

preparation example Construction

[0064] In a second aspect, the present invention provides a method for preparing the masterbatch of the above light stabilizer composition, the method comprising: mixing the light stabilizer composition and the polymer to obtain a mixture; The above mixture is melt blended, then cooled and shaped.

[0065] In the present invention, the mixing processing equipment may be a twin-screw extruder or mixing processing equipment such as banburying and open milling. The present invention has no special limitation on the operation method of the mixing processing equipment, and those skilled in the art can operate the mixing processing equipment using various methods conventionally used in the field after understanding the technical solution of the present invention.

[0066] The present invention has no special requirements on the temperature of the melt blending, and in the embodiment of the present invention, the melt blending is performed at 130° C. as an example.

[0067] In a thi...

specific Embodiment approach

[0071] According to a preferred embodiment of the present invention, the preparation method of the light stabilizer composition comprises: mixing at least two hindered amine stabilizers with different structures and at least one triazine light stabilizer in the required weight than directly mixing to obtain the aforementioned photostabilizer composition of the present invention.

[0072] According to another preferred embodiment of the present invention, the preparation method of the light stabilizer composition comprises: combining at least two hindered amine stabilizers with different structures and at least one triazine light stabilizer according to the required The weight ratio is fully dissolved in the solvent to achieve a homogeneous phase, and the light stabilizer composition of the present invention is obtained after the solvent is removed by concentration under reduced pressure.

[0073] The present invention will be described in detail below by way of examples. In t...

Embodiment 1

[0088] The hindered amine light stabilizer of 42.5g BW-10LD, 42.5g of hindered amine light stabilizer UV-325 and 15g triazine light stabilizer Mix UV-630, add 2000mL xylene, stir until fully mixed, heat to 130°C, and remove xylene under vacuum to obtain 100g of light stabilizer composition.

[0089] 100g of light stabilizer composition and 1900g of low-density polyethylene resin were mixed, then processed through a twin-screw extruder and cooled and formed to obtain an anti-aging masterbatch (F-1) containing light stabilizer.

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Abstract

The invention relates to the field of high molecular materials and discloses a light stabilizer composition master batch and a preparation method and application thereof. The master batch comprises polymers and a light stabilizer composition. The light stabilizer composition comprises at least one triazine light stabilizer and at least two hindered amine light stabilizers. The triazine light stabilizer is of the structure shown in the formula (I), the hindered amine light stabilizers are selected from a first hindered amine light stabilizer and a second hindered amine light stabilizer, the first hindered amine light stabilizer is of the structure shown in the formula (II), and the second hindered amine light stabilizer has structural units shown in formulas (III-1) and (III-2). Products prepared from the light stabilizer composition master batch have the excellent anti-aging effect when acidic substances exist.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a light stabilizer composition masterbatch, a method for preparing the light stabilizer composition masterbatch and the application of the light stabilizer composition masterbatch in polymer products. Background technique [0002] In the process of processing, storage and use of polymer materials, there are widespread degradation phenomena caused by light and heat aging, which are manifested as mechanical strength decline, yellowing and so on. Among them, light is one of the main reasons for the aging and degradation of polymer materials, so people add a class of compounds that can interfere with the light-induced degradation of polymer materials—light stabilizers, to polymer materials to prevent or delay its aging and prolong its life. service life. Commonly used light stabilizers are mainly divided into two categories: hindered amine light stabilizers and ultraviolet absorbers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K5/17C08K5/3492
CPCC08K5/17C08K5/3492C08L2201/08C08L2203/16C08L2207/066C08L23/06
Inventor 刘罡李玉庆李靖
Owner 天罡新材料(廊坊)股份有限公司