Overview of polybutylene terephthalate B Polybutylene terephthalate, also known as polytetramethyl terephthalate. The proper name is: br, abbreviated as B, B or, hereafter referred to as B. It is the condensation polymer of terephthalic acid and butanediol. It can be produced by the exchange method or the direct esterification method through polycondensation. The future development trend is the direct esterification method. B and B together are called thermoplastic polyester.
The B main chain is composed of a saturated linear molecule in which each repeating unit is a rigid benzene ring and a flexible fatty alcohol. The high geometric regularity and rigidity of the molecule give the polymer high mechanical strength and outstanding Resistance to chemical reagents, heat resistance and excellent electrical properties. There are no side chains in the molecule, and the structure is symmetrical, meeting the requirements of confidential stacking, so that this polymer has a high degree of crystallinity and a high melting point. The structure of the molecule determines B Has good overall performance.
BASF, Germany
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Features b:r>
Usage
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Good fluidity, hydrolysis resistance b:r>
Connectors for automotive applications
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Good fluidity, hydrolysis resistance b:r>
Connectors for automotive applications
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Coating compound, food packaging
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Super tough b:r>
Connector housing
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Good surface finish b:r> < br/>Automotive exterior parts, engineering machinery accessories, hand.
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Thin-walled connector parts for automotive applications
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High rigidity b:r>
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Good dimensional stability, good fluidity. b:r>
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Good dimensional stability, good fluidity. b:r>
Automotive applications, automotive Electronics,.
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Good dimensional stability, good fluidity, good toughness, b:r>
Electrical components Handle, housing knob
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Good dimensional stability properties, good fluidity. b:r>
Applications in automobiles, automotive electronics,.
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Good Dimensional stability, good fluidity. b:r>
Kitchenware handles, engineering machinery accessories, handles, knobs
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Rapid prototyping cycle, high flow, low warpage b:r>
Enclosure industrial application printed circuit board
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Good dimensional stability, good fluidity. b:r>
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Good dimensional stability, good fluidity. b:r>
Automotive applications, automotive electronics,.
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Good dimensional stability, good fluidity. b:r>
Abrasive clean material sound barrier.
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Good dimensional stability, good fluidity. b:r>
Automotive applications, automotive electronics,.
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Good dimensional stability, good fluidity, good toughness, b:r>
Handle shell
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Fast Molding cycle, good dimensional stability. b:r>
Automotive applications, automotive electronics,.
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Good dimensional stability, good fluidity. b:r>
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Good dimensional stability, good flow Good performance. b:r>
Casing, printed circuit board, outer sheath
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Good dimensional stability, good fluidity, good toughness, b:r>
Shell printed circuit board
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Rapid prototyping cycle, good dimensional stability, low warpage b:r>
Casing, printed circuit board, outer sheath
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Good fluidity, hydrolysis resistance b:r>
Connectors for automotive applications
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Good fluidity, hydrolysis resistance b:r>
Application connectors in automobiles
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Laser markable b:r>
Automobile exterior parts
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Rapid prototyping cycle, high fluidity, laser markable, low warpage b:r>
Casing, printed circuit board, outer sheath
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Low warpage b: r>
Construction machinery accessories, housing
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Low warpage b:r>
Shell printed circuit board< br/> rr B b:r>
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Good surface finish, low warpage b:r>
Electrical component housing
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Super tough grade b:r>
Connector engineering machinery accessories shell
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Antimony-free, flame retardant and halogen-free b:r>
Connectors, switches for electrical and electronic applications
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Flame retardant b:r>
Connector housing
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Flame-retardant b:r>
Connectors, housing switches
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Flame-retardant b:r>
Connectors, electronic parts, switches
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Flame retardant b:r>
Connectors, housing switches, lighting fixtures
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Flame retardant b:r>
Connectors, housing switches, lighting fixtures
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Flame retardant b:r>
Connectors, switches
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High impact resistance b:r>
Connectors, switches
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Universal, good dimensional stability, good . b:r>
Video compound connector engineering machinery accessories.
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Good fluidity, good demoulding, Lubrication, medium. b:r>
Commercial equipment for automotive applications.
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Lubrication, medium viscosityb:r>
Home appliance casing
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Good UV resistance, good weather resistance, high viscosity b:r >
Profile Stick
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High Viscosity b:r>
Profile Stick
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High viscosity b:r>
Profile stick
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B b:r> < br/>Good stiffness, good surface finish, low warpage b:r>
Enclosure printed circuit board
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Good surface finish, low warpage b:r>
Electrical component housing
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Rapid prototyping cycle, good chemical resistance resistance, good. b:r>
Electrical enclosure, housing
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Has good chemical resistance, high R ( Stress cracks. b:r>
Electrical enclosures, enclosures
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Have good chemical resistance, high R (stress cracks. b :r>
Electrical enclosure, enclosure
: Good mechanical properties, high mechanical strength, good fatigue resistance and dimensional stability, small creep, these properties rarely change under high temperature conditions .
: The energy consumed in producing B is also the lowest among engineering plastics, which is of great significance in the current world-wide energy shortage.
: Excellent heat aging resistance, the enhanced temperature index reaches ~℃, in addition, the long-term outdoor aging resistance is also very good.
It has good solvent resistance and no stress cracking.
:B is easy to decompose when exposed to water, so be careful when using it in high temperature and high pressure environments.
: Easy to flame retardant, up to grade. Due to the good affinity of flame retardants, it is easy to develop reactive or additive flame retardant grades. Flame retardant products are widely used in the electronic and electrical industry.
: Excellent electrical properties, high volume resistivity and dielectric strength, excellent arc resistance, minimal hygroscopicity, and stable electrical properties in humid and high-temperature environments. It is ideal for manufacturing electronic and electrical parts. Ideal material.
:Easy to molding and secondary processing, easy to use ordinary equipment for injection molding or extrusion. Due to the fast crystallization speed, good fluidity, and lower mold temperature requirements than other engineering plastics, it only takes a few seconds to process thin-walled parts, and it only takes a few seconds for most parts
Ultradur B4300G6HR