High temperature-resistant nylon/polyethylenenaphthalate (PEN) /polyethylene glycol terephthalate (PBT) copolymer, and preparation method and application thereof
A high temperature resistant, copolymer technology, applied in the field of modified plastics, to achieve the effect of good barrier properties
Inactive Publication Date: 2012-09-12
KINGFA SCI & TECH CO LTD +2
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Problems solved by technology
[0014] At present, there is no report on improving the barrier properties, heat resistance, impact resistance, flowability and electrical properties of materials by preparing high temperature resistant nylon / PEN / PBT copolymers
Method used
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Embodiment 1-5
[0047] A preparation method of high temperature resistant nylon / PEN / PBT copolymer, comprising the following steps
[0048] Add PEN, PBT, 1,10-decanediamine, and diphenylsulfone into a 20L autoclave equipped with magnetic coupling stirring, condenser, gas phase port, and feeding port, and heat up after purging with nitrogen. Raise the temperature to 230° C. under stirring, react for 12 hours, cool down and discharge to obtain a high-temperature-resistant nylon / PEN / PBT copolymer. The resulting properties are shown in Table 1.
[0049] Table 1
[0050]
[0051] It can be seen from Table 1 that compared with the corresponding homopolymer, the copolymer of the present invention has higher barrier properties, heat resistance, impact resistance, flowability and electrical properties.
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Abstract
The invention discloses a high temperature-resistant nylon / polyethylenenaphthalate (PEN) / polyethylene glycol terephthalate (PBT) copolymer, and a preparation method and application thereof. The copolymer consists of 70 to 99 percent of high-temperature nylon, 0.5 to 15 percent of PEN and 0.5 to 15 percent of PBT, wherein the high-temperature nylon is a high-temperature nylon unit generated by reacting the PEN, the PBT and diamine; and the diamine is straight-chain aliphatic diamine, branched-chain aliphatic diamine or alicyclic diamine. Compared with the corresponding benzene ring homopolymers, the copolymer has the advantages of high obstruction performance, heat-resistant performance, impact resistance, flowing performance and electrical performance.
Description
technical field [0001] The invention belongs to the field of modified plastics, and in particular relates to a high-temperature resistant nylon / polyethylene naphthalate (PEN) / polyethylene terephthalate (PBT) copolymer and its preparation method and application. Background technique [0002] Aliphatic polyamides, such as PA6 and PA66, have excellent mechanical strength, heat resistance, chemical resistance, wear resistance and self-lubricating properties, and low coefficient of friction. Their applications include electronic appliances, automotive parts, furniture , building materials and fibers, has become one of the most important engineering plastics. [0003] In recent years, with the development of the situation, the miniaturization and high performance of electronics, electrical appliances, and information-related equipment are required, and the requirements for materials are further increased. Especially with the development of Surface Mount Technology (SMT), various ...
Claims
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IPC IPC(8): C08G69/44C08L77/12
Inventor 罗湘安叶南飚曹民蔡彤旻曾祥斌饶先花代惊奇吴博
Owner KINGFA SCI & TECH CO LTD