A kind of modified pp material and its preparation method and application

Abstract

The invention provides a modified PP material and its preparation method and application. The modified PP material is prepared from the following components by weight: PP resin: 5-3-66 parts; talcum powder: 20 parts; PP-based hot melt adhesive: 10-20 parts; metal deactivator: 1-2 parts; antibacterial agent: 1-2 parts; mold inhibitor: 1-2 parts; antioxidant: 0.4 parts; lubricant: 0.6 parts ; Wherein, the PP-based hot melt adhesive comprises the following components prepared in parts by weight: 55-68 parts of PP oligomers: 20-30 parts of hydrogenated petrolatum, 10 parts of Fischer-Tropsch wax, 2 parts of polyethylene wax -5 servings. The modified PP material created by the invention has the advantages of easy bonding to metal, long-term thermal aging resistance, antibacterial and mildew resistance.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a modified PP material and a preparation method and application thereof. Background technique [0002] Traditional door and window edge strips are aluminum alloy, steel, copper and other metals, which are heavy in quality and difficult to process. PP material is used by most door and window manufacturers to manufacture door and window edge strips due to its light weight, easy molding, corrosion resistance, and low price. However, ordinary PP materials have poor polarity, no adhesion, and cannot bond to metals. It is necessary to brush a layer of adhesive on the surface of the PP extruded strip to bond with the metal, resulting in complicated processing technology and strong odor of the adhesive. ,Not environmentally friendly. Some modified PP materials have a certain polarity by adding calcium maleate grafts to make PP have a certain polarity, which can bond metals,...

AI Technical Summary

Problems solved by technology

The modified PP materials used in the door and window edge strip industry on the market are generally not easy to bond with metal, and are prone to embrittlement, pulverization, mildew and affect hygiene after long-term use.

[0003] Chinese patent CN 104292729 A discloses a SEBS / PP alloy fusion-grafted maleic anhydride copolymer. This copolymer has high polarity and is easy to bond to metals, but it is easy to induce aging when it is in contact with metals for a long time, and it does not have antibacterial and antibacterial properties. mildew effect

Chinese patent CN 106621572 A discloses a multi-ion antibacterial PP fiber filter element. This PP material has a certain inhibitory effect on bacteria, but it cannot inhibit the production of mold spores and cannot achieve the anti-mildew effect.

Chinese patent CN 103467849 A discloses an antibacterial and anti-virus PP-PET packaging material. This material has a certain inhibitory effect on bacteria and mold, but this material is easily induced to age when it contacts with metal, and it is not easy to bond metal

[0004] Therefore, there is an urgent need to develop a material that can solve the common problems of polypropylene materials in the door and window edge strip industry that are not easy to adhere to metal, easy to be induced by metal ions, and easy to mildew after long-term use.

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