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UVC irradiation-resistant polypropylene/polyethylene weather-resistant composite material and preparation method thereof

A composite material and polyethylene technology, which is applied in the field of UVC-resistant polypropylene/polyethylene weather-resistant composite materials and their preparation, can solve problems such as application limitations and no mature solutions, and achieve improved photothermal aging ability, improved weather resistance and The effect of service life and maintaining mechanical strength

Pending Publication Date: 2020-06-16
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no mature solution for the weather resistance of polypropylene / polyethylene composites in the UVC band below 280nm, which limits the application of polypropylene / polyethylene composites

Method used

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  • UVC irradiation-resistant polypropylene/polyethylene weather-resistant composite material and preparation method thereof
  • UVC irradiation-resistant polypropylene/polyethylene weather-resistant composite material and preparation method thereof
  • UVC irradiation-resistant polypropylene/polyethylene weather-resistant composite material and preparation method thereof

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Embodiment Construction

[0027] Below in conjunction with embodiment the present invention will be further described. Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] The models and suppliers of the reagents used in this example are as follows: SV30G from Wuhan Petrochemical was selected for homopolymer PP; K7227H of Wuhan Petrochemical was selected for copolymerized PP; LLDPE was selected for polyethylene, 7042 of Zhenhai Refining & Chemical Co., Ltd.; BASF was selected as the triazine ultraviolet absorber The UV absorber UV1577 of BASF; the UV absorber UV-326 of BASF and the UV absorber LA36 of Aidike are selected as the benzotriazole UV absorber; The light stabilizer LA81; the dispersant is a mixture of calcium stearate and N,N-ethyleneb...

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Abstract

The invention discloses a UVC irradiation-resistant polypropylene / polyethylene weather-resistant composite material and a preparation method thereof. The composite material is prepared from the following raw materials: polypropylene, polyethylene, precipitated barium sulfate, an antioxidant, a dispersing agent, an ultraviolet absorbent, a light stabilizer and toner. According to the invention, a polypropylene / polyethylene composite material is selected, so that the product has high impact resistance and low-temperature toughness while certain strength is ensured. According to the invention, anultraviolet light absorber UV-1577 is used and a hindered amine light stabilizer 2020 with a large molecular weight is compounded at the same time, so that the photo-thermal aging capability of the composite material is greatly improved. Meanwhile, the mixture of an antioxidant 1010 and an antioxidant 168 is used as the antioxidant, so that the basic performance retention rate of the composite material is 80% or above after the composite material is continuously irradiated under short-wave ultraviolet rays, the color is basically unchanged, the weather resistance of the polypropylene / polyethylene composite material under a UVC light source is greatly improved, and the service life of the polypropylene / polyethylene composite material under the UVC light source is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a UVC irradiation-resistant polypropylene / polyethylene weather-resistant composite material and a preparation method thereof. Background technique [0002] Polypropylene is a thermoplastic resin produced by the polymerization of propylene, usually a translucent, colorless solid, odorless and non-toxic. With excellent physical properties and good chemical stability, it is one of the most widely used general-purpose plastics. Polypropylene is widely used in the shell of household appliances because of its good surface gloss and low price; polyethylene is a thermoplastic resin obtained by polymerization of ethylene, which has excellent impact performance and low temperature resistance, chemical stability Good, resistant to most acid and alkali corrosion, widely used in infant amusement equipment, plastic cutting boards, etc. Polypropylene is affected by light and heat in the natu...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L23/06C08K13/02C08K5/00C08K3/30C08K3/22C08K5/098C08K3/04C08K5/3475C08K5/526C08K5/134C08K5/3492
CPCC08L23/12C08L23/14C08L2201/08C08K2201/003C08K2003/3045C08K2003/2241C08L23/06C08K13/02C08K5/005C08K3/30C08K3/22C08K5/098C08K3/04C08K5/3475C08K5/526C08K5/1345C08K5/3492
Inventor 徐元元邢纪普吴摞李荣群
Owner ORINKO NEW MATERIAL CO LTD
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