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Chemical Industry Standard of the People's Republic of China
HG2232-91
Modified Polyphenylene Ether Engineering Plastics
Published on December 27, 1991
Implemented on July 1, 1992
Ministry of Chemical Industry of the People's Republic of China
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Modified Polyphenylene Ether Engineering Plastics
1 Subject Content and Scope of Application
HG2232-91
This standard specifies the product model, technical requirements, test methods, inspection rules, and requirements for marking, packaging, transportation, and storage of modified polyphenylene ether engineering plastics.
This standard applies to products with polyphenylene aldehyde resin as the base material, with a certain amount of additives, flame retardants or M-106, M-109-G20 flame retardant or flame retardant reinforced polyphenylene ether engineering plastics made of glass fiber granulation, 2 Reference standards
GB1033
GB1034
GB1040
GB1042
GB1043
GB1408
GB1409
Test method for number
GB1410
GB1634
GB2918
GB4609
GB6678
GB6679
HG2001
3 Product model
Test method for plastic density and relative density
Test method for water absorption of plastic| |tt||Tensile test method for plastics
Bending test method for plastics
Simply supported beam impact test method for plastics
Test method for power frequency electrical strength of solid insulating materialsRelative dielectric constant and dielectric loss of solid insulating materials at power frequency, audio frequency and high frequency (including meter wavelength)Test method for volume resistivity and surface resistivity of solid insulating materialsTest method for heat deformation temperature (abbreviated as heat deformation temperature) of plastic bending loadStandard environment for condition adjustment and testing of plastic specimensTest method for combustion performance of plasticsVertical combustion methodGeneral rules for sampling of chemical products
General rules for sampling of solid chemical products
301-G30 Flame retardant reinforced polybutylene terephthalate (PBT) engineering plasticsThis standard includes two models:
PPOM-106 (unreinforced)|| tt||PPO: M-109-G20 (reinforced)
The meanings of the codes in the model are as follows:
PPQM-109-G20
Glass fiber nominal value 20%
Product series number
Modification code
Abbreviation code of polyphenylene ether resin
Approved by the Ministry of Chemical Industry of the People's Republic of China on December 27, 1991. Standards implemented on July 1, 1992
4 Technical requirements
4.1 Appearance
HG223291
The appearance is cylindrical, with a diameter of 2~4mm and a length of 2~7mm. 4.2 Physical and chemical properties
The physical and chemical properties should comply with the requirements of Table 1.
Table 1 Physical and chemical properties
Density g/cm
Water absorption (23℃, 24h), %
Molding shrinkage, %
Tensile strength, MPa
Flexural strength, MPa
Impact strength (simple supported beam, notched), /mVolume resistivity, n·m
Relative dielectric constant, (1MHz)
Dielectric loss factor (1MHz), ×10-
Dielectric strength, MV/m
Heat deformation temperature, (1.82MPa) C
Flammability
Superior product
First-class product
Qualified product||t t||1.0×10l3
Note: When the user needs the horizontal and vertical shrinkage rate, the supply and demand parties shall negotiate. 5 Test method
5.1 Sample preparation
5.1.1 Pretreatment of pellets
Superior products
M-109-G20
First-class products
Qualified products
1.0×1014
1.0×1013
Before molding the sample, the pellets shall be preheated and dried, and dried continuously at 110～120℃ until the moisture content is less than or equal to 0.05%.
The pellets after drying shall be kept warm at 90～110℃ to prevent moisture absorption. 5.1.2 Sample preparation conditions
The sample shall be molded by a screw injection machine, and the process conditions shall be as specified in Table 2. Standard heat exchange network: om.ba8080/cm Various standard industry data charging models
Specimen type
Barrel temperature, ℃
Mold temperature, ℃
Injection pressure, MPa
Injection time (total cycle), 8
5:2Appearance inspection
Inspect by visual method or measuring tool.
5.3 Determination of density
Measured by method B in GB1033
5.4 Determination of water absorption
HG223291
Table 2 Process conditions
Strip type
Disc type
250~255
250±2
240~245
230~235
Dumbbell type
Strip type
7.84~8.00
Measured by the method specified in GB1034, the sample should comply with the requirements of 3.1. 5.5 Molding shrinkage
Measured by the method specified in Appendix B of HG2001, 5.6 Determination of tensile strength
M-109-G.20
Disc type
270±2
260±2
250±2bZxz.net
240±2
Bell-eating type
Measured by the method specified in GB1040, the specimen is type I, the tensile speed is 10±5mm/min, and the specimen state adjustment and test standard environment meet the requirements of 2.1 in GB2918. The state adjustment time is not less than 16h, 5.7 Determination of flexural strength
Measured by the method specified in GB1042. The specimen is a large specimen of molding material in the table, and the specimen state adjustment and test standard environment meet the requirements of 2.1 in GB2918. The state adjustment time is not less than 16h. 5.8 Determination of impact strength
The method specified in GB1043 is used for determination. The specimen is a large notched specimen. The specimen state adjustment and the standard environment for the test meet the requirements of 2.1 in GB2918. The state adjustment time is not less than 16h.5.9 Determination of volume resistivity
The method specified in GB1410 is used for determination. The specimen diameter is 100mm and the thickness is 2±0.1mm. The specimen state adjustment and the standard environment for the test meet the requirements of 2.1 in GB2918. The state adjustment time is not less than 24h5.10 The dielectric loss factor and relative dielectric constant are determined by the method specified in GB1409 using a Q meter. The specimen diameter is 100mm and the thickness is 2±0.1mm. The specimen state adjustment and the standard environment for the test meet the requirements of 2.1 in GB2918. The state adjustment time is not less than 24h. 5.11 Determination of dielectric strength
The dielectric strength shall be measured by the method specified in GB1408, with a voltage rise rate of 2.0 kV/s, a sample diameter of 100 mm and a thickness of 2.0±0.1 mm. The standard environment for sample condition adjustment and testing shall meet the requirements of 2.1 in GB2918: the condition adjustment time shall not be less than 24h. 5.12 Determination of heat deformation temperature
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The method specified in GB1634 is used for determination. The sample length is 120±2mm, the height is 15±0.2mm, the width is 10±0.2mm, and the maximum bending normal stress of the sample is 1.82MPa. 5.13 Determination of flammability
The method specified in GB4609 is used for determination. 6 Inspection rules
6.1 Products of the same model produced by the same production line, with the same raw material ratio and the same process conditions, are evenly mixed into a batch, and each batch is not more than 10t.
6.2 The sampling unit is specified in GB6678, and the sampling method is specified in GB6679. Production units can take samples on the production line, and the sampling volume for each batch of products shall not be less than 5kg6.3 Each batch of products must be inspected by the quality inspection department of the production unit, and it is ensured that all products leaving the factory meet the technical requirements specified in this standard.
6.4 The water absorption, tensile strength, bending strength, impact strength (simply supported beam, notch), volume resistivity, relative dielectric constant, dielectric loss factor, dielectric strength, heat deformation temperature, and flammability in this standard table are factory inspection items; density and molding shrinkage are random inspection items, and random inspection is conducted once every 30 batches. Type inspection is carried out in accordance with the provisions of 6.6.1 in GB1.3. 6.5 If the user unit needs to inspect the received products, it should be carried out in accordance with the provisions of this standard. Acceptance inspection should be carried out within three months of receiving the product.
6.6 If a certain inspection result does not meet the requirements of this standard, samples should be taken from twice the amount of packaging in the batch of products, and the unqualified items should be re-inspected, and the grade should be determined based on the re-inspection results. 6.7 When the supplier and the buyer have any disagreement on the product quality, the two parties shall negotiate to resolve it or the statutory quality inspection department shall conduct arbitration. 7 Marking, packaging, transportation, storage
7.1 Marking
Each batch of products shall have a quality inspection report, and each package shall have a clear and firm mark indicating the product name, trademark, model, grade, net weight and production unit.
7.2 Packaging
This product is packaged in a polypropylene film bag, and a polypropylene composite woven bag is placed on the outside. The inner bag mouth is tied with a string, and the outer bag is sealed with a sewing machine (using nylon thread): the net weight of each bag is 25kg. Each package should have a certificate of conformity, indicating the batch number, production date and the number of this standard. 7.3 Transportation
During transportation, the product should be protected from sunlight and rain, and the transportation vehicle should be kept clean. When handling, the packaging should be prevented from being damaged. This product is a non-dangerous product.
7.4 Storage
The product should be stored in a dark, dry and clean room, not near heating or other heat sources, and stored separately according to grade. Additional remarks:
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China, and this standard is under the jurisdiction of the Plastic Resin Products Branch (SC4) of the National Plastic Standardization Technical Committee. This standard was drafted by the Beijing Chemical Industry Research Institute. The main drafters of this standard are Yang Fujiang, Liu Chenglin, Liu Hongzhi, Zhang Minsheng and Li Qiu. 4
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Chemical Industry Standards
Modified mulberry ether engineering plastics
HG2232-91
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(Standardization Research Institute of the Ministry of Chemical Industry)
Postal Code: 100013
Indian Drama Standardization Research Institute of the Ministry of Chemical Industry
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Format 880×12301/16 Printing number 8000 First printing in November 1992
First edition in November 1992
Printing number 1-500
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