Polar monomer graft-modified amorphous poly-alpha-olefin and preparation method thereof

Abstract

The invention discloses a polar monomer graft-modified amorphous poly-alpha-olefin and a preparation method thereof. The polar monomer graft-modified amorphous poly-alpha-olefin is prepared by carrying out grafting reaction on amorphous poly-alpha-olefin, a peroxide initiator, a polar monomer and an auxiliary grafting agent under molten or dissolved conditions. The polar monomer graft-modified amorphous poly-alpha-olefin is prepared from the following raw materials: 100 parts of amorphous poly-alpha-olefin, peroxide initiator accounting for 0.1-1 wt% of the amorphous poly-alpha-olefin, polar monomer accounting for 0.5-10 wt% of the amorphous poly-alpha-olefin, auxiliary grafting agent accounting for 0.1-5 wt% of the amorphous poly-alpha-olefin, solvent accounting for 0-300 wt% of the amorphous poly-alpha-olefin, and antioxidant accounting for 0.05-2 wt% of the amorphous poly-alpha-olefin. The amorphous poly-alpha-olefin has the characteristics of high grafting ratio, light color, high polarity, favorable flowability, favorable storage capability and no risk in moisture crosslinking.

Description

technical field

[0001] The invention relates to an amorphous poly-alpha-olefin grafted and modified by a polar monomer and a preparation method thereof, which belongs to the technical field of hot-melt adhesive modification and is mainly used in wood, glass, ceramics, plastics, metals, carpets, artificial Adhesive compounding for turf. Background technique

[0002] Amorphous poly-α-olefin (so-called APAO) is a low-molecular-weight amorphous or low-crystallinity plastomer material produced by polymerization of α-olefins such as ethylene, propylene, and 1-butene. Amorphous polyalphaolefin has good fluidity and certain viscosity, so it is widely used in plastic filler masterbatch, tackifier masterbatch, hot melt adhesive, paper laminating agent, sealant, etc. However, amorphous polyα-olefin is a non-polar material, which has extremely poor adhesion to polar materials such as wood, glass, polar plastics, and metals, which severely limits its application.

[0003] Modification ...