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GB/T 41767-2022 English PDF

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GB/T 41767-2022: Test method for moisture absorption properties and equilibrium conditioning of polymer matrix composite materials
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 41767-2022	English	189	Add to Cart	3 days [Need to translate]	Test method for moisture absorption properties and equilibrium conditioning of polymer matrix composite materials	Valid	GB/T 41767-2022

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Basic data

Standard ID	GB/T 41767-2022 (GB/T41767-2022)
Description (Translated English)	Test method for moisture absorption properties and equilibrium conditioning of polymer matrix composite materials
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	Q23
Classification of International Standard	83.120
Word Count Estimation	10,179
Date of Issue	2022-10-14
Date of Implementation	2023-02-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration

GB/T 41767-2022: Test method for moisture absorption properties and equilibrium conditioning of polymer matrix composite materials

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for moisture absorption properties and equilibrium conditioning of polymer matrix composite materials ICS 83.120 CCSQ23 National Standards of People's Republic of China Hygroscopic properties of polymer matrix composites and Equilibrium state adjustment test method Published on 2022-10-12 2023-02-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Building Materials Federation. This document is under the jurisdiction of the National Standardization Technical Committee of Fiber Reinforced Plastics (SAC/TC39). This document is drafted by. China Aviation Development Beijing Institute of Aeronautical Materials, Beijing FRP Research and Design Institute Co., Ltd., China Aircraft Strength graduate School. The main drafters of this document. Deng Liwei, Chen Xinwen, Wang Haipeng, Ma Liting, Wang Yana, Yang Yang, Zhang Qin, Tian Yaowei, Wang Zhandong, Song VIP. Hygroscopic properties of polymer matrix composites and Equilibrium state adjustment test method

1 Scope

This document specifies the test apparatus, sample, test conditions, test for the determination of the hygroscopic properties and equilibrium state adjustment of polymer matrix composites Procedure, test result calculation and test report. This document is applicable to the adjustment of the moisture absorption equilibrium state, the determination of the equilibrium moisture absorption and the moisture diffusion coefficient before the mechanical test of polymer matrix composites.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 1446 General Principles of Test Methods for the Properties of Fiber Reinforced Plastics GB/T 3961 Terminology of Fiber Reinforced Plastics

3 Terms and Definitions

Terms and definitions defined in GB/T 3961 apply to this document.

4 Principles of the method

The polymer matrix composite laminate sample was soaked in a wet environment, and the change of the moisture absorption of the sample with the soaking time was tracked and measured. When the change of moisture absorption meets the moisture absorption balance criterion, the sample reaches the moisture absorption equilibrium state, and the moisture absorption at this time is the equilibrium moisture absorption of the material. The corresponding time is the equilibrium moisture absorption time. Calculated from the mass and time data recorded in the test, the material along the thickness of the material in this wet environment. to the wet diffusion coefficient.

5 Test device

5.1 General requirements The test device shall meet the test requirements, be calibrated regularly and used within the validity period. 5.2 Electric blast drying oven The temperature of the electric blast drying oven should be adjustable, the temperature range is 40 ℃ ~ 120 ℃, and the temperature deviation should not exceed ± 3 ℃. 5.3 Dryer The dryer is equipped with desiccant with effective drying function, such as silica gel desiccant, active mineral desiccant, etc.

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