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Plastic additive with anti-ultraviolet ageing and moisturizing property and preparation method and application thereof

A technology of plastic additives and moisture retention, which is applied in the fields of plastic additives and anti-ultraviolet aging, can solve the problems of easy migration, uneven dispersion of inorganic nanoparticles, etc., and achieve simple process, cost reduction, industrialization promotion, and simple preparation process Effect

Active Publication Date: 2018-06-29
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of easy migration, volatilization and uneven dispersion of inorganic nanoparticles in current organic ultraviolet absorbers, and provide a preparation method and application of an efficient, multifunctional and environmentally friendly plastic additive

Method used

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  • Plastic additive with anti-ultraviolet ageing and moisturizing property and preparation method and application thereof
  • Plastic additive with anti-ultraviolet ageing and moisturizing property and preparation method and application thereof
  • Plastic additive with anti-ultraviolet ageing and moisturizing property and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1g of white carbon black (SiO 2 ) and 1g 2-hydroxyl-4-octyloxybenzophenone (UV-531) were mixed in a 100ml three-necked flask, and the organotin catalyst (dibutyltin dilaurate) diluted with 1ml ethanol was added dropwise. The amount of catalyst used is 7.5% of the mass of white carbon black, stirred and reacted at a speed of 400rpm under the condition of 160°C for 9h, the prepared reaction product is put into a vacuum oven, and baked to constant weight under the condition of 60°C to obtain Plastic additive SiO 2 -531.

[0038] The infrared spectrogram (FTIR) of the plastic additive prepared in this embodiment after solvent extraction is as follows: figure 1 As shown, comparing unmodified silica and plastic additives (SiO 2 -531) infrared spectrum, SiO 2 The spectrum of -531 is at 1540cm -1 and 1515cm -1 The skeleton vibration peak of the benzene ring appeared at 1645cm -1 and 1740cm -1 The stretching vibration peak of the carbonyl group appears. The above result...

Embodiment 2

[0046] 1g of white carbon black (SiO 2 ) and 1g 2-hydroxyl-4-octyloxybenzophenone (UV-531) were mixed in a 100ml three-necked flask, and the organotin catalyst (dibutyltin dilaurate) diluted with 1ml ethanol was added dropwise. The amount of catalyst used is 7.5% of the mass of white carbon black, stirred and reacted at a speed of 400rpm under the condition of 140°C for 9h, the prepared reaction product is put into a vacuum oven, and baked to constant weight under the condition of 60°C to obtain Plastic additive SiO 2 -531.

[0047] Infrared spectrum showed that the product prepared in this example was the target product. Thermogravimetric analysis showed that the SiO prepared in this example 2 The mass fraction of ultraviolet absorber in -531 is 0.35%. Its dispersibility, moisture retention and anti-ultraviolet aging properties and compound system (PBAT / SiO 2 / 531), there is no significant improvement.

Embodiment 3

[0049] 1g of white carbon black (SiO 2 ) and 1g 2-hydroxyl-4-octyloxybenzophenone (UV-531) were mixed in a 100ml three-necked flask, and the organotin catalyst (dibutyltin dilaurate) diluted with 1ml ethanol was added dropwise. The amount of catalyst used is 7.5% of the mass of white carbon black, stirred and reacted at a speed of 400rpm under the condition of 170°C for 9h, the prepared reaction product is put into a vacuum oven, and baked to constant weight under the condition of 60°C to obtain Plastic additive SiO 2 -531.

[0050] Infrared spectrum showed that the product prepared in this example was the target product. Thermogravimetric analysis showed that the SiO prepared in this example 2 The mass fraction of ultraviolet absorber in -531 is 3.33%, and its dispersibility, moisture retention and anti-ultraviolet aging performance are compared with the compound system (PBAT / SiO 2 / 531) has been improved. After aging for 48h, the PBAT / SiO prepared from this product 2 T...

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Abstract

The invention discloses a plastic additive with anti-ultraviolet ageing and moisturizing property and a preparation method and application thereof, and belongs to the fields of plastic additives and anti-ultraviolet ageing. A solid phase method is adopted for preparing a novel ultraviolet absorbent and specifically comprises the following steps: mixing an ultraviolet absorbent and inorganic nano particles according to a mass ratio of (0.1-1):1, performing stirring reaction for 7-11 hours at 140-170 DEG C under the catalytic action of an organic tin catalyst, and performing vacuum drying to obtain the plastic additive with anti-ultraviolet ageing and moisturizing property. The plastic additive has an obvious anti-ultraviolet ageing effect on plastics, especially can reduce migration and volatilization of additives in plastic products in a using process, and simultaneously improves the dispersion condition of the inorganic nano particles in plastic substrates; and the preparation methodis simple in operation and is environmentally friendly. The plastic additive is a high-efficiency, multifunctional and environment-friendly plastic additive and has important application prospects inthe plastic industry.

Description

technical field [0001] The invention belongs to the field of plastic additives and anti-ultraviolet aging, and specifically relates to a preparation method and application of a plastic additive with anti-ultraviolet aging and moisturizing properties. Background technique [0002] Slowing down the degradation of polymers is usually by adding additives to polymers, such as antioxidants, UV absorbers, UV screeners, etc. Traditional UV absorbers have two main disadvantages: (1) they are prone to degradation or volatilization during polymer processing; (2) due to their low molecular weight, migration occurs during long-term use of polymers, while UV shielding agents , such as carbon black, etc. will seriously affect the color and transparency of the product. [0003] At present, researchers at home and abroad mainly use two methods to overcome these shortcomings, (1) use a variety of additives to achieve the synergistic effect of complementing each other, among which the compoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K9/04C08K3/36C08J5/18
CPCC08J5/18C08J2367/02C08K3/36C08K9/04C08K2201/011C08L2201/08C08L67/02
Inventor 贾志欣唐钰晗谢东贾德民罗远芳陈明周
Owner SOUTH CHINA UNIV OF TECH