High heat-resistant and wear-resistant PETG composite wire for 3D printing and preparation method thereof

By modifying PETG filaments through POSS polycondensation and copolymerization, the problems of heat resistance, abrasion resistance and moisture absorption of PETG filaments were solved, resulting in highly heat-resistant and abrasion-resistant PETG filaments suitable for industrial-grade FDM 3D printing.

CN122356740APending Publication Date: 2026-07-10GUANGDONG SANLV TECH CO LTD
3 Cites 0 Cited by

Patent Information

Application Number
CN202610624140.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-08
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing PETG wires suffer from insufficient heat resistance, easy aging, poor abrasion resistance, and high moisture absorption in industrial applications, which limits their use in outdoor equipment and automotive parts.

Method used

High heat-resistant and wear-resistant modified PETG was prepared by POSS polycondensation, acrylate end-capping and free radical copolymerization. By introducing acrylate-end-capped POSS polycondensation PETG, methyl methacrylate, unsaturated polydimethylsiloxane and active ultraviolet absorber, a chemically bonded physical cross-linking network was formed, which improved interfacial compatibility and wear resistance. The organosiloxane was fixed by polymerization to prevent migration and volatilization.

Benefits of technology

It significantly improves the heat distortion temperature, abrasion resistance and aging resistance of PETG filaments, while reducing water absorption and maintaining good printing flow and mechanical properties, making it suitable for demanding industrial-grade FDM 3D printing.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention provides a high heat-resistant and wear-resistant PETG composite wire for 3D printing and a preparation method thereof. The composite wire is composed of PETG resin, modified PETG with high heat resistance and wear resistance, a compatilizer, a lubricant, an antioxidant and a coloring agent. Wherein the high-heat-resistant and wear-resistant modified PETG is prepared through POSS polycondensation, acrylate end capping and free radical copolymerization processes, and the comprehensive performance of the wire is remarkably improved through the synergistic effect of multiple components. Specifically, the POSS nano group and the high-temperature-resistant acrylate act together, so that the thermal deformation temperature of the wire is greatly improved; through synergistic cooperation with unsaturated polydimethylsiloxane, the material is endowed with wear-resistant, lubricating and hydrophobic characteristics; in addition, the ultraviolet light absorber monomer is fixed in a copolymerization manner, so that the long-acting ultraviolet aging resistance is realized. The prepared wire has excellent high heat resistance, wear resistance, aging resistance and low moisture absorption performance, and is suitable for industrial 3D printing application of automobile parts, tool clamps, outdoor equipment and the like.
Need to check novelty before this filing date? Find Prior Art