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A special low-volatility, migration-resistant nano-composite anti-aging masterbatch for polypropylene and its preparation process

A nano-composite, polypropylene technology, applied in the anti-migration nano-composite anti-aging masterbatch and its preparation process, in the field of low volatility for polypropylene, can solve the problem of increased usage of masterbatch, no effective method for inhibiting volatile organic compounds in masterbatch, Increase the customer's formula cost and other issues to achieve the effects of improving weather resistance, long-term UV shielding, improving storage temperature and precipitation resistance

Active Publication Date: 2020-10-02
宿迁联盛科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method will lead to an increase in the use of masterbatch and increase the cost of customer formulations
And high-concentration anti-aging masterbatches need to add a large amount of dispersant to solve the migration problem caused by uneven dispersion, and there is no effective method to suppress the remaining volatile organic compounds in masterbatches
[0005] Inorganic nano-ZnO has a very small particle size, and the nanoparticles have a very high specific surface area and insufficient atomic coordination, so that the nanoparticles have a strong adsorption effect, which can effectively adsorb the low molecular weight in the masterbatch and polypropylene formulation system. Volatile matter, followed by nano-scale zinc oxide particles have a strong shielding effect on UVA and UVB bands of ultraviolet rays. At present, only composite inorganic nanoparticles have been used in polycarbonate sun panels in China, but in polycarbonate There is no specific use method and effect in the field of propylene

Method used

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  • A special low-volatility, migration-resistant nano-composite anti-aging masterbatch for polypropylene and its preparation process
  • A special low-volatility, migration-resistant nano-composite anti-aging masterbatch for polypropylene and its preparation process
  • A special low-volatility, migration-resistant nano-composite anti-aging masterbatch for polypropylene and its preparation process

Examples

Experimental program
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Embodiment

[0031] Example: Step 1: After drying the zinc oxide powder with an average particle size of 20-40nm at a temperature of 90-100°C for 4 hours, mix it with surface treatment agent KH570 at a temperature of 50-60°C at a ratio of 1:1 to Mix at a speed of 800r / min for 30 minutes and then treat with ultrasonic wave for 30 minutes before use.

[0032] Step 2: Mix UV Absorber 2908, Light Stabilizer 2020 and EBS Lubricant as described in Tables 1 and 2 at room temperature for 5 minutes at a high speed at a speed of 800 r / min and set aside for use.

[0033] Formulation Table 1 (special masterbatch for non-filled polypropylene material)

[0034]

[0035] Formulation Table 2 (Special masterbatch for filled polypropylene material)

[0036]

[0037] Step 3: Add the polypropylene resin prepared in steps 1 and 2 into weight loss scales 1, 2, and 3 respectively, add the heated and melted 3853 into the liquid weight loss scale, and use 160 After melting and extruding at a temperature of...

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Abstract

The invention discloses a special low-volatility migration-resistant nano composite anti-aging master batch for polypropylene. The master batch comprises the following components in parts by weight: 35 to 45 parts of carrier resin polypropylene, 35 to 45 parts of light stabilizer a, 0 to 10 parts of light stabilizer b, 20 to 30 parts of ultraviolet light absorber, 1 to 2 parts of nano zinc oxide, 0.5 to 2 parts of dispersed lubricant and 0.5 to 5 parts of surface treating agent. In the master batch disclosed by the invention, a broadband as well as efficient and long-acting ultraviolet screening capacity of the nano zinc oxide are used to take a synergistic effect with the organic light stabilizer, so that weather resistance of a target product is greatly improved; a universal formula is adopted, and by an ultrahigh adsorption effect brought by a high specific surface area of the nano zinc oxide, content of volatile matter in the master batch and a subsequent plastic product is effectively reduced, the low VOC (Volatile Organic Compound) requirement on the product is met, and the master batch accords with the national standard.

Description

technical field [0001] The invention relates to the technical field of polymer material modification formula and processing, in particular to a low-volatility, migration-resistant nano-composite anti-aging masterbatch for polypropylene and a preparation process. Background technique [0002] Polypropylene material is widely used in structural parts such as automobiles and home appliances because of its good rigidity and excellent mechanical properties, heat resistance, chemical corrosion resistance, easy molding processing, good surface gloss, and recyclable utilization. . However, polypropylene (PP) is particularly poor in weather resistance. Because of the tertiary carbon structure on the main chain of polypropylene, polypropylene is very easy to age and degrade due to the combined effects of heat, oxygen, light, and water vapor in the environment during processing, storage, and use, losing luster, physical and chemical properties, and use. value. [0003] Since the ant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L79/02C08K13/02C08K9/00C08K9/06C08K3/22C08K5/134C08K5/3435C08K3/34C08J3/22B29B9/06
CPCB29B9/065C08J3/226C08J2323/12C08J2479/02C08K2003/2296C08K2201/003C08K2201/006C08K2201/011C08L23/12C08L2201/08C08L79/02C08K13/02C08K9/00C08K9/06C08K3/22C08K5/1345C08K5/3435C08K3/34
Inventor 项瞻波张超周峰项瞻峰谢胜利胡新利
Owner 宿迁联盛科技股份有限公司
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