This standard specifies the naming method for polybutylene terephthalate (PBT) thermoplastic materials. This nomenclature is based on the use or processing method, characteristic properties, additives, filler types and contents, product serial number or other properties that need to be indicated. This standard is applicable to commonly used polybutylene terephthalate (PBT) with or without colorants, additives and fillers. HG 2361-1992 Nomenclature of polybutylene terephthalate (PBT) thermoplastic materials HG2361-1992 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Polybutylene terephthalate (PBT)
Nomenclature of thermoplastic materials
HG 2361--92
This standard refers to the international standard ISO7792/1-85 "Plastics-Polyalkylene terephthalate-Part 1: Nomenclature". 1 Subject content and scope of application
This standard specifies the nomenclature of polybutylene terephthalate (PBT) thermoplastic materials. This nomenclature is named according to the purpose or processing method, characteristic properties, additives, type and content of fillers, and product series number or other properties that need to be indicated of polybutylene terephthalate (PBT) thermoplastic materials.
This standard is applicable to commonly used polybutylene terephthalate (PBT) with or without colorants, additives and fillers. 2 Naming method
The naming method of polybutylene terephthalate (PBT) thermoplastic material consists of abbreviation code and model. 2.1 Abbreviation code
The abbreviation code of polybutylene terephthalate is specified as "PBT" 2.2 Model
The model of polybutylene terephthalate is composed of the following parts: 000-00m
Purpose or processing method
Characteristic performance
Additive
Filling type-
Filling content
Product series number or other performance
2.2.1 Purpose or processing method
The purpose or processing method of polybutylene terephthalate (PBT) thermoplastic material is expressed in English letters, see Table 1. Approved by the Ministry of Chemical Industry of the People's Republic of China on October 7, 1992 404
Implementation on May 1, 1993
Disc processing
HG 2361—92
Table 1 Application or processing method code
Application or processing method
Extruded pipes, profiles, sheets
Extruded films
General application
Characteristic properties or additives
Application or processing method
Wire and cable coating
Monofilament extrusion
Powder coating or sintering
Characteristic properties and additives of polybutylene terephthalate (PBT), expressed in English letters, are shown in Table 2. Table 2 Characteristic performance or additive code
Processing stability
Anti-adhesion
Characteristic performance or additive
Powder, dry blend
Foamable
Heat aging stability
2.2.3 Filler type
Characteristic performance or additive
Light and weather aging stability
Good fluidity
Improved impact performance
Mold release agent
Lubricant
High strength
Anti-warping
Antistatic agent
The filler types of polybutylene terephthalate (PBT) thermoplastic materials are represented by English letters, see Table 3. Table 3
Filler type code
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Filler type
Note: 1) This type of filler can be identified by chemical symbols or other agreed codes. 2) Metal fillers can be identified by the chemical symbol of the metal element. 2.2.4
Filler content
Filler type
Mineral\, metal? )
Organic synthetic material 1)
Talc
The filler content of polybutylene terephthalate (PBT) thermoplastic material is expressed by two Arabic numerals. The content code and range are shown in 4.
HG 2361—92
Table 4 Filler content code and range
Content range
>7. 5~～12. 5
>12. 5 ～17. 5
>17. 5~～22. 5
>22. 5～27. 5
>27.5～32. 5
>32. 5~37. 5
>37. 5~42. 5
>42.5~47.5
%(m/m)
Content range
>47.552.5
>52. 5~57. 5
>57.5~62.5
>62. 5~~67. 5
>67. 5~72. 5
>72. 5~~77. 5
>77.5~82.5
>82, 5~ 87. 5
For mixed fillers of different types, the relevant codes can be combined in parentheses with a plus sign "+". For example, 25% (m/m) glass fiber and 10% (m/m) mineral filler can be identified with (G+M) (25+10). 2.2.5 Product serial number or other properties
Product serial number or other properties shall be identified by the manufacturer with agreed symbols or codes and may be omitted when not required. 3 Naming examples
3.1 A certain polybutylene terephthalate (PBT) thermoplastic material, for injection molding (M), flame retardant (F), without colorant (natural color, N), with glass fiber as filler (G), filler content 33% (m/m) (35), is named: PBTMFN-G35. 3.2 A certain polybutylene terephthalate (PBT) thermoplastic material, for extrusion molding (F), anti-warping (W), with colorant (C), with talcum powder as filler (T), filler content 15% (m/m) (15), is named: PBTEWC-T15. Additional notes:
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is technically coordinated by the Plastic Resin Products Branch of the National Plastic Standardization Technical Committee (SC4). This standard was drafted by the Chengdu Silicone Research Center of the Ministry of Chemical Industry. The main drafters of this standard are Zheng Daode and Lu Qingyun. 406
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