T/GXDSL 062-2025 Active Group standards

T/GXDSL 062-2025 4D Printing Material Performance Evaluation Standard

T/GXDSL 062-2025

Publish Date: 2025-07-04 Implement Date: 2025-09-03 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GXDSL 062-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: The manufacturing molding process

Publish Date: 2025-07-04

Implement Date: 2025-09-03

Scope

Main technical content: This standard comprehensively stipulates the technical requirements and test methods for the performance evaluation of 4D printing materials, and is applicable to the entire process of R&D, production, and application of smart materials with external stimulus response characteristics. In terms of material types, this standard covers mainstream 4D printing materials such as shape memory polymers (shape recovery rate ≥90%), stimulus-responsive hydrogels (swelling rate 50-1000%), and liquid crystal elastomers (drive strain ≥50%), requiring materials to possess basic characteristics such as printability (viscosity range 100-10000 Pa·s) and intelligent responsiveness (response threshold ≤50 J/cm3). In terms of performance dimensions, this standard establishes a four-dimensional evaluation system including basic physical properties (tensile strength ≥10 MPa), stimulus response (temperature sensitivity ≥0.5%/℃), shape change (deformation accuracy ±100 μm), and environmental adaptability (stabilized operation at -20℃~80℃). The test system needs to integrate multi-field coupling devices (temperature control accuracy ±0.5℃), high-precision detection (strain measurement ±0.1%), and dynamic analysis (sampling frequency ≥10 Hz) to support the performance characterization of materials in complex environments. In terms of application fields, this standard is applicable to material evaluation in aerospace (shape memory cycle ≥100 times), biomedicine (degradation rate 0.1-10 mg/day), and flexible electronics (conductivity ≥10 S/m). For special-purpose 4D printing materials, such as biocompatible materials (cell survival rate ≥90%) or extreme environment materials (temperature resistance range -100℃~300℃), additional specialized test requirements can be added on the basis of this standard. This standard is not applicable to the evaluation of traditional non-responsive 3D printing materials.