A composite material for simulating plants and a method for producing the same

CN122234571APending Publication Date: 2026-06-19GUANGDONG GEWU NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG GEWU NEW MATERIALS CO LTD
Filing Date
2026-03-23
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

PETG material suffers from warping and moisture absorption issues in 3D printing of simulated plants, affecting morphological accuracy and flexibility. Existing improvement methods lead to material hardening or loss of toughness.

Method used

An epoxy siloxane branching modifier is blended with PETG resin, and epoxy groups and cyclosiloxane structures are introduced into the PETG molecular chain through hydrosilylation reaction to form a micro-local cross-linked bundle structure, which enhances the dimensional stability and water resistance of the material.

Benefits of technology

It significantly reduces warping and moisture absorption, maintains material flexibility, and is suitable for high-end simulated plant 3D printing, improving morphological accuracy and fidelity.

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Abstract

This invention relates to a composite material for simulated plants and its preparation method, belonging to the field of polymer materials technology. Addressing the problems of high moisture absorption and easy warping deformation of PETG materials in 3D printing of simulated plants, this invention provides a PETG-based composite material containing an epoxy siloxane branched modifier. The modifier has a cyclotetrasiloxane core, with glycidyl ester branches grafted onto its periphery via a hydrosilylation reaction. This peripheral structure, on the one hand, imparts good compatibility between the cyclosiloxane core and PETG; on the other hand, its epoxy groups undergo a ring-opening reaction with the PETG end groups to form a chemical anchor, creating a local pinning effect in the matrix to inhibit warping. The cyclosiloxane core provides hydrophobic barrier and flexible lubrication, maintaining the material's toughness. This invention achieves a synergistic improvement in anti-warping, moisture resistance, and high toughness. The resulting material exhibits excellent printing performance and is suitable for the 3D printing of high-fidelity simulated plants.
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