QB/T 2670-2004 Definition, classification, marking and degradation performance requirements of degradable plastic sheets
Some standard content:
[C5 83.140
Classification number: G33
Registration number: 15136-2005
Light Industry Standard of the People's Republic of China
QB/T 2670—2004
Define, classify, marking and degradability requirementof degradableplastic sheet
sheet
2004-12-14 Issued
National Development and Reform Commission of the People's Republic of China 2005-06-01 Implementation
This standard was proposed by China Light Industry Federation, Foreword
This standard was proposed by China Plastics Standardization Center. QB/T2670-2004
This standard was proposed by Light Industry Application Research Institute, and the company, Fufan Asia Technology Development Co., Ltd., Wuhan Huali Environmental Technology Co., Ltd., and Weixin Materials (Shenzhen Co., Ltd., Ningbo Tianan Biomaterials Co., Ltd., Nei Zhang Gu Rong Xi High-tech Group Co., Ltd., Ren Jin Dan Hai Shi Jia Co., Ltd., Shenzhen Weishanyi Environmental Protection Technology Co., Ltd., the Plastic Quality Supervision and Inspection Center (Beijing), and Sichuan University participated in the drafting. The main drafters of the technical standard are: Ju Yunyi, Kong Li, Wang Shihe, Chen Xuenian, Zhang Xianbing, Mao Guoyu, Basa, Ding Shaochu, Tuo Weichen, Ye Xinzhu, Liu Caice, Hou Yu, Gong Kzhong, Yang Zhongdi, Li Yi, Fang Han, and Chen Mingxing. This standard is released for the first time.
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QB/T 26702004
This standard is applicable to biodegradable plastic sheets made of biodegradable materials or/and non-biodegradable materials as main raw materials, with or without biodegradable pre-agents. The biodegradable plastic materials in this standard include biodegradable plastic sheets, non-biodegradable plastic sheets and compostable sheets: In order to distinguish between biodegradable plastic sheets, compostable sheets and non-biodegradable materials, when citing the standard, the non-biodegradable plastic sheets shall refer to the following standards: biodegradable plastic sheets shall refer to QB/T2671 definition, marking and compostability performance requirements for biodegradable sheets, and compostable plastic sheets shall refer to QB/T2672 definition, marking and compostability performance requirements for non-biodegradable sheets. 1 Scope
Definition, classification, marking and compostability of biodegradable plastic sheets Performance requirements QH/T2670-2004
Technical standard defines the technical and definition, classification and identification, degradation performance requirements, test methods, inspection rules and marking, packaging, transportation and labeling of biodegradable plastic sheets.
This standard is applicable to biodegradable plastic sheets (hereinafter referred to as sheets) that are made of biodegradable materials or/and non-biodegradable resins as the main raw materials and are formed without adding degradation agents. 2 Regulatory references
The clauses in the following documents are the clauses of this standard through reference to official standards. For the dated reference documents, all subsequent amendments (excluding the contents in the text) or subcontracting documents shall not apply to the technical standard. However, all research results that have reached an agreement based on this standard shall use the latest version of this document. For any document not indicating the third phase, the new version of this standard shall apply. G140-1992 Test methods for properties of materials GB/T1844.3-1995 Plastics and resins Part 2: Filling and reinforcing materials (NG1SO1043-2:198?) GBT1944.3-1995 Plastics and resins Part 3: Plastics (NEGIS010433:1987) (B/4-1992 Plastics hot air drop test method (G1SK7212-197) GB/T 13022091 Test method for the performance of plastics (ISO 1184:1983) GBT 16422.2-1999 Test method for plastics - Part 2: Standard lamp (ISO 1184:1983) GB/T 16422.2-1999 Test method for plastics - Part 2: Standard lamp (ISO 1184:1983) GB/T 16422.2-1999 Test method for plastics - Part 2: Standard lamp (ISO 1184:1994) GB/T 17603-1998 Photodegradable materials - Evaluation of the decomposition ability of materials under the action of specific substances (ISO 1184:1994) GB/T 17603-1998 Photodegradable materials - Evaluation of the decomposition ability of materials under the action of specific substances (ISO 1184:1994) 846:1997, NEQ)
GB/T19276.1·2003 The final aerobic biodegradability of materials in aqueous culture medium is determined by the method of measuring the aerobic requirement (ISO14851:1999TT) The final aerobic biodegradability of materials in aqueous culture medium is determined by the method of measuring the carbon dioxide (ISO14852:1999, 1DT) GB/T19277-2003 The final aerobic biodegradability of materials under indirect heap conditions is determined by the method of measuring the carbon dioxide (ISO14852:1999, 1DT) GB/T19277-2003 Determination of the ultimate oxygen biodegradability of plastics in water by measuring the gaseous products of the final oxygen biodegradation in a water system
1S016920:2002 Determination of the degree of decomposition of materials in a pilot scale test under the definition of composting strips 150 17556:2003P/500010X2/PP((J1M11511S4.3 Product material identification method
Sheet material position three-way mark design: Connect 4.2 Station mark this product or exterior. 4.3.1 Single component sheet
The material has been integrated into a single component: Speed 2 to mark 1:, expressed as PLA
2:: C
Small month: (two/two matching/two matching? Head material, I PBS A4: /,
indicates 5: light cyclohexanone, expressed as PPDO, the heart is deeper than dibutyl ether, expressed as PIBS, expressed as 7, the second, expressed as GA
small: a or chemical family exploration, Yuan Er is PPE: B:
six supply 10: will -3- war: stock sink, winter expressed as PF six, etc., 11, cellulose acid, expressed as CA, etc. 12: just the car, is N
4.3. 2 Multi-component sheets
For polymer composites or alloys, the size of each major component shall be classified by the amount of each component: the name of the polymer shall be abbreviated, separated by a plus sign "1", and arranged in descending order, and marked according to the provisions of 4.2, indicating: the polymer with polyol and polyol as the main components, starch is separated by a separator, and is indicated as PCE-St
4.3.3 Sheets containing additives (optional)
4.3.9.1 Sheets containing stimulants or reinforcing agents, fillers or additives, and resistant materials or reinforcing agents shall be marked with the same name, followed by the polymer abbreviation, and then issued as HIY KAoNY. QB/T2670—2004 GB/1844.2-1995 specifies that the additives should be written with equal signs and marked according to the specification of Example 4.3. Example 1: Addition of 30% by weight of the new toughening agent to the internal formulation, expressed as PCI-MD30, containing a variety of materials containing both the old and old reinforcing agents, should be installed in Example 3, the actual material absorption enhancer should be recorded, and the symptoms should be summarized with the report, Example 2: Although the amount of the effective material is 15, the effective material and the effective material are 25, the effective material is expressed as PIAF2+M5HIA(IF+MD)4G, containing 20% of the material M) and 5% of the effective material 0F, expressed as PLA MD20+GFIS or PLA (MI)-GE:3433.2 Sheets containing additives
containing plasticizers, the symbol ", the symbol ", the abbreviation of the inhibitor specified in GB 1R44.3-15. The inhibitors are all PCL with butyl dicarboxylate, which is not ICL P(DBP)
4.3.3.3 Sheets containing degradants
Sheets containing degradants, the symbol "DPA" is added after the abbreviation. Containing 15% of the extender and 25% of the mouse, and 5% of the photosensitive agent A is added, which is indicated as HI.A-(F25+MD 15) DPAS, PT.A (GFMD) 40DPA54.4 Making of logo
The making of logo can adopt mold, printing, embossing, other washing and non-pulling marking methods. 5 Degradation performance requirements
5.1 Biodegradable plastic sheet
Technical requirements and test methods of biodegradable plastic sheet, etc. See Q/T267l20M45.2 Compostable plastic sheet
Technical test methods of compostable sheet, etc. (Efficient 72-20045.3 Photodegradable plastic sheet
The photodegradation performance of photodegradable plastic sheet shall comply with the provisions of Table 1. The test method is shown in Table 61. Table 1 Photodegradation performance requirements of photodegradable plastic sheet: tt||Aging particle size
(stroke/handle)%
5.4 Potential for photodegradation of plastic sheets
Total weight after degradation for five years
1(H)%
The thermal oxidation degradation performance of plastic sheets shall comply with the requirements of Table 2. The test method is shown in 6.2. Test method
Pre-crack length ratio
Double/stroke/%
Table 2 Requirements for photodegradation performance of thermal oxidation degradation padding sheets Calculation of changes in sheet properties
After degradation The average relative mass reduction rate of the molecules in the same column/%
5.5 Starch-filled degradable plastic sheet
219000 molecular mass fraction efficiency%
Bacteria invasion test 4 grams or above, test method 6.4: or biodegradation test biodegradation percentage. Not less than 20%, the total test decomposition degree is not less than 60% within 5 years, test method see 3.B Degradability test method
6.1 Photodegradation test
QB/T2670-2004
Test method| 6.1.1 Photodegradation conditions The degradation test method of the sheet can be natural or artificial aging chamber. The specific test conditions should comply with the requirements of Table 3. Table 3 Photodegradation test method and characteristics Distance Test Method Distance between lines 1 sphere irradiation energy (31010) MF: m 16800/m tt According to the actual situation GB/T17603-17603 GB/T [6422.2-
Black temperature, (65±5
Sweep the yard: (65±51%
First suction time (=D.5mim
Degree to calculate the weekly energy::
102=mm between the two water changes
6.1.2 Tensile elongation half retention rate
When the sample thickness is less than 1mm: According to B/T13022-1991, use type 1 sample, take 5 samples, and the test station calculates the arithmetic mean of the test results For materials with a certain number of transverse directions, the test results are shown in the form of the arithmetic mean of the test results in the longitudinal and transverse directions. For materials with a certain number of transverse directions, 5 samples are taken from each side. The test results are shown in the form of the arithmetic mean of the test results in the longitudinal and transverse directions. For materials with a certain number of transverse directions, 5 samples are taken from each side. The test results are shown in the form of the arithmetic mean of the test results in the longitudinal and transverse directions. For materials with a certain number of transverse directions, the ...
6.1.3 Weight average relative molecular mass reduction rate
Use high temperature gel chromatograph to test the weight average relative molecular mass (weight) of the sheet before and after photodegradation. The relative molecular mass of the material to be tested is KAoNY Ka=
QB/T2670.·2004
The lower limit separation range of the weight average relative molecular mass should include the relative molecular mass below 5000. The weight average relative molecular mass reduction rate is expressed in %, and is calculated by formula (2): fug
Where:
w.·-The total weight average relative molecular mass reduction rate after photodegradation. %M!-The weight average relative molecular mass before photodegradation: -The average molecular mass after photodegradation:
6. 1. 4 The relative molecular mass is less than 10000 The mass fraction of molecules X
is calculated by the negative state of the molecular mass fraction of the product less than 10000, and the numerical value is not expressed. bZxz.net
6.2 Thermal Oxidation Performance
The filter is tested by ASTMD5510, and the test is carried out by GB/T7141-1992. The test is expressed by the reduction rate for the sheet material with natural gas: The test results are shown in the following table: 6.2.1 Conditions
According to the test rod, the temperature of the test specimen is not less than 0.25mm, and the exposure method is A (convection temperature reduction), according to ASTM D5510: when the test specimen is less than 0.25mm, the layer or method B (standard expansion) is adopted, according to GB/T7t41-1992, the test temperature is 60℃, and the core time is d.6.2.2 Retention rate of elongation at break
Details: When the elongation at break is less than -1mm, follow the method specified in (B/T13022-1:1, use 1 type test, collect 5 test scans, and express them with the arithmetic half mean of the test results; for longitudinal sheets, there are only 5 tests in the core and mold directions, and the test results are expressed with the arithmetic half mean of the weaving, test or pasting results, respectively. The tensile speed is (50+5)mm/mil. When the elongation at break is not less than 1mm, follow the method specified in (B/T1040-12:1, use 1 type test: collect 5 test scans, and the test results are expressed with the arithmetic half mean of the test results. Show: For the horizontal slices, 5 samples are taken in the vertical and horizontal directions respectively. The test results are as follows: the average length (50+5) mm/mim: the breaking length rate is shown in the table below: -zr
,——the breaking length rate after degradation, %; L
The breaking length before degradation, %:
The breaking length after degradation, %:
6.2.3 Average relative molecular weight reduction rate
The relative molecular weight of the sheet before and after oxygen degradation is measured by gel chromatography at room temperature The mass of the particles, for the relative molecular mass of the test materials, the lower limit of the test should include only the relative molecular mass below 50%. The value of the reduction rate of the return tank is expressed in terms of road, and the formula (4) is used to calculate: Mw.ok
The relative molecular mass of the average molecular mass before degradation can be reduced by heat treatment
8.3 The decomposition of the decomposition material can be tested according to the provisions of [S016929:2[02]. The test results are expressed in terms of the process. 6.4 Sennan corrosion
The whole G R/T19275-2003 soil rot test, the test data is expressed as the growth rate of each component 6.5 soil decomposition performance
QB/T2670-204
soil decomposition test GB/T19277-2003/or GB/T176.12003 and/or GB10276.2200 and: or according to TSO1755:203 () or TS0FD1514H52; 2003 (billion), the test fiber is expressed as the maximum biodegradability percentage, packaging, transportation, storage
7. 1. Marking
The sheet must be marked with product markings on the packaging, including: product name, product logo, trademark, manufacturer name, address, production date, etc. The sheet packaging should be accompanied by a product certificate. 7.2 Packaging
The sheet must be light-proof and moisture-proof.
7.3 Transportation
During transportation and transport, it is prohibited to hold, damage, or damage by mechanical vibration. Avoid alcohol, vomiting, etc. 7. 4 Storage
The sheet should be stored in a clean, absorbent, and clean room. It should be kept neat and tidy, and heat-resistant for at least ten minutes. The storage period is no more than one year from the date of production:
HIY KAoNY Ka-
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