GB/T 33061.6-2023 English PDF

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GB/T 33061.6-2023: Plastics - Determination of dynamic mechanical properties - Part 6: Non-resonance method under shear vibration
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33061.6-2023	349	Add to Cart	4 days	Plastics - Determination of dynamic mechanical properties - Part 6: Non-resonance method under shear vibration	Valid

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GB/T 31402   GB/T 34691.1   GB/T 35173   GB/T 33061.5   GB/T 33061.7   GB/T 33061.4   

Basic data

Standard ID: GB/T 33061.6-2023 (GB/T33061.6-2023)
Description (Translated English): Plastics - Determination of dynamic mechanical properties - Part 6: Non-resonance method under shear vibration
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G31
Classification of International Standard: 83.080.01
Word Count Estimation: 18,138
Date of Issue: 2023-08-06
Date of Implementation: 2024-03-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 33061.6-2023: Plastics - Determination of dynamic mechanical properties - Part 6: Non-resonance method under shear vibration

---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.
ICS 83.080.01 CCSG31 National Standards of People's Republic of China Determination of dynamic mechanical properties of plastics Part 6.Non-resonant shear vibration method Part 6.Shearvibration-Non-resonancemethod,MOD) Published on 2023-08-06 2024-03-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is Part 6 of GB/T 33061 "Determination of Dynamic Mechanical Properties of Plastics". GB/T 33061 has issued the following part. ---Part 1.General principles; ---Part 4.Non-resonant tensile vibration method; ---Part 5.Non-resonant bending vibration method; ---Part 6.Non-resonant shear vibration method; ---Part 7.Non-resonant torsional vibration method; ---Part 10.Determination of complex shear viscosity using a parallel plate oscillating rheometer; ---Part 11.Glass transition temperature. This document is modified to adopt ISO 6721-6.2019 "Determination of dynamic mechanical properties of plastics - Part 6.Shear vibration non-resonant method". Compared with ISO 6721-6.2019, this document has many structural adjustments. Comparison list of structure number changes between two files See Appendix A for the table. Compared with ISO 6721-6.2019, there are many technical differences between this document and the clauses involved in the outer margin of the page. Single lines (|) are marked. A list of these technical differences and their causes is shown in Appendix B. The following editorial changes have been made to this document. ---In order to coordinate with the existing standards, the name of the standard is changed to "Determination of dynamic mechanical properties of plastics - Part 6.Non-resonant shear vibration" "Movement Method"; ---Replaced ISO 6721-7 with the informative reference GB/T 33061.7, and GB/T 33061.1 replaced ISO 6721-1 (see Chapter 1); --- Explanation of the symbol kჵ "The cross-sectional size of the steel specimen is the maximum size that the clamp can accommodate. The specimen is stiffer than the plastic to be tested The material height is at least 100 times (see Note 2)" is changed to Note 1 (see 3.2); ---Add Appendix A (informative) "List of comparison between this document and ISO 6721-6.2019 structure numbers"; ---Add Appendix B (informative) "List of technical differences between this document and ISO 6721-6.2019 and their reasons". Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents. This document is proposed by China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Plastics Standardization Technical Committee (SAC/TC15). This document was drafted by. Foshan Nanjia Packaging Technology Co., Ltd., SAIC-GM-Wuling Automobile Co., Ltd., Watersco Technology (Shanghai) Co., Ltd., Zhonglan Chenguang Chemical Research and Design Institute Co., Ltd., Xiamen David Technology Co., Ltd., Zhejiang Xiangguang Biotechnology Co., Ltd. Co., Ltd., Sinopec (Beijing) Chemical Industry Research Institute Co., Ltd., NETZSCH Scientific Instruments Trading (Shanghai) Co., Ltd., Dongguan Weisideke Technology Development Co., Ltd., Qingdao Hairong Commercial Cold Chain Co., Ltd., Jilin Provincial Product Quality Supervision and Inspection Institute, Mettler Toledo Technology (China China) Co., Ltd., Liaocheng University, Qingdao Dagang Customs of the People's Republic of China. The main drafters of this document. Cao Jinpeng, Lan Xian, Guo Yanshuang, Luo Songbo, Feng Ruzhi, Fang Yong, Liu Xuanbo, Wang Rong, Zhang Wenfu, Xiang Xiuhua, Hua Lei, Li Shangyu, Yuan Ningxiao, Teng Mouyong, Gao Jianguo.

Introduction

Dynamic mechanical analysis (DMA) measures the response of a material under alternating stress or strain under programmed temperature control. The measurement results reflect the material's response to alternating stress or strain. The viscoelasticity of the material. This paper uses the DMA method to determine the storage modulus, loss modulus and loss factor of plastics in non-resonant shear modes as a function of temperature. Variety. Based on these data, the relaxation behavior of plastics at all levels in shear mode can be characterized and important information related to the use properties of plastics can be obtained. parameter. GB/T 33061 specifies various methods for determining the dynamic mechanical properties of rigid plastics within the range of linear viscoelastic behavior. It is planned to consist of twelve Part composition. ---Part 1.General principles. The purpose is to establish common definitions and various aspects of test methods for the determination of dynamic mechanical properties. ---Part 2.Twist method. The purpose is to establish an operable, traceable and verifiable method for the measurement of energy storage and loss components of torsional modulus. Real program. ---Part 3.Resonant bending vibration curve method. The purpose is to obtain the bending composite modulus Ef* of the homogeneous plastic and the layer used for sound insulation. Determine the damping characteristics of compressed plastics and establish operable, traceable and verifiable procedures. ---Part 4.Non-resonant tensile vibration method. The purpose is to determine the forced non-resonance method of the tensile complex modulus E* of plastics. Establish operable, traceable and verifiable procedures. ---Part 5.Non-resonant bending vibration method. The purpose is to determine the forced non-resonance method of the plastic bending complex modulus Ef*. Establish operable, traceable and verifiable procedures. ---Part 6.Non-resonant shear vibration method. The purpose is to determine the forced non-resonant method of plastic shear complex modulus G*, Establish operable, traceable and verifiable procedures. ---Part 7.Non-resonant torsional vibration method. The purpose is to calculate the torsion of the shear complex modulus G* of a strip or rod-shaped solid polymer. Convert the measurement to non-resonant methods and establish operable, traceable and verifiable procedures. ---Part 8.Longitudinal shear vibration wave propagation method. The purpose is to calculate the longitudinal complex modulus L* and shear complex modulus of the polymer For the determination of the energy storage component of G*, establish an operable, traceable and verifiable procedure. ---Part 9.Tensile vibration sonic pulse propagation method; the purpose is to measure the storage component of the polymer composite tensile modulus E* Determine and establish operable, traceable and verifiable procedures. ---Part 10.Determination of complex shear viscosity using a parallel plate oscillating rheometer. The purpose is to provide dynamic rheological properties of polymer melts. Determination of test methods and establishment of operable, traceable and verifiable procedures. ---Part 11.Glass transition temperature. The purpose is to determine the glass transition temperature (Tg) for dynamic mechanical properties. Establish operable, traceable and verifiable procedures. ---Part 12.Non-resonant compression vibration method. The purpose is to establish an operable and practical method for the determination of the compression composite modulus E* of polymers. Traceable and verifiable procedures. Determination of dynamic mechanical properties of plastics Part 6.Non-resonant shear vibration method

1 Scope

This document describes a forced non-resonant method for determining the shear complex modulus G* of plastics in the frequency range 0.01 Hz to 100 Hz. Note. Higher frequencies may lead to larger errors in the measured dynamic performance (see 9.5.1 and 10.1.2). This document is suitable for the determination of dynamic storage modulus between 0.1MPa and 50MPa. This document can study materials with a modulus greater than 50MPa. However, the torsional vibration method can be used to more accurately measure its dynamic shear mechanical properties (see ISO 6721-2 and GB/T 33061.7). This document is particularly suitable for the determination of loss factors greater than 0.02, in order to facilitate the study of the dynamics of most glassy-rubbery relaxation zones. Can change with temperature and frequency (see GB/T 33061.1).

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document. GB/T 33061.1 Determination of dynamic mechanical properties of plastics Part 1.General principles (GB/T 33061.1-2016, ISO 6721-1. 2011,MOD) 3 Terms, definitions and symbols 3.1 Terms and definitions The terms and definitions defined in GB/T 33061.1 apply to this document. 3.2 Symbols The following symbols apply to this document. A. The contact area of the sample, in square meters (m2). f. Measurement frequency, unit is Hertz (Hz). fF. Resonant frequency of the force sensor, unit is Hertz (Hz). fS. Resonant frequency of the sample, unit is Hertz (Hz). G'a, G'. apparent value and correction value of component shear storage modulus, unit is Pascal (Pa). G″. Shear loss modulus, unit is Pascal (Pa). h. The average height of the specimen in the direction of applied load, in meters (m). ka,k. the measured value and correction value of the specimen's complex stiffness, in Newtons per meter (N/m). kF. Stiffness value of the force sensor, unit is Newton per meter (N/m). kჵ. Stiffness value of steel specimen, unit is Newton per meter (N/m). L. The average distance between the contact surfaces of each polymer sample, in meters (m). mF. The mass of the loaded component between the force sensor and the specimen, in kilograms (kg). sA. dynamic displacement amplitude measurement value, unit is meter (m). ......

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