A high-heat wire ignition polyphenylene ether composition and its preparation method and application
A technology of polyphenylene ether and composition, which is applied in the field of high-heat filament ignition polyphenylene ether composition and its preparation, can solve the problems of reduced HWI performance, reduced thermal stability, rarely reaching 0-level HWI, etc., and achieves HWI performance Improve and enhance the effect of carbon layer quality
Active Publication Date: 2022-05-06
KINGFA SCI & TECH CO LTD
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Problems solved by technology
However, although PPE has excellent insulating properties and flame retardant properties, it is difficult for the HWI level of PPE to reach the 0 level specified by UL.
Currently, the flame retardant of PPE materials with 0-level HWI on the market is mainly reinforced and filled materials; because of the introduction of PS to regulate the fluidity of flame-retardant PPE materials, the thermal stability is reduced, the HWI performance is greatly reduced, and rarely can reach 0 level HWI, related patents have no related reports
Method used
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Comparison scheme
Effect test
Embodiment 5
[0053] Comparing Example 1 with Example 5, it can be seen that Example 5 is the same as Example 1 except that the selection of the toughening agent is different, and the toughening agent in Example 1 is styrene-ethylene / butylene-styrene Block copolymer, its flame retardant property, HWI are all better than embodiment 5;
[0054] Comparing Example 1 with Examples 6 to 8, it can be seen that only one of zinc oxide and manganese oxide is contained in Examples 6 to 7, and zinc oxide and manganese oxide are contained in Example 1; the flame retardant in Example 1 The performance and HWI are better than those of Examples 6-7; the metal oxide in Example 8 is magnesium oxide, and the HWIs of Examples 1 and 6-7 are better than those of Example 8.
[0055] Comparing Example 9 with Comparative Examples 1, 2, and 3, it can be seen that Comparative Example 1 does not contain metal oxide and polyoxymethylene, only Metal oxide is contained in Comparative Example 2, and only Polyoxymethylene ...
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Abstract
The invention discloses a high-heat wire ignition polyphenylene ether composition, which comprises the following ingredients in parts by weight: 40-90 parts of polyphenylene ether, 2-40 parts of styrene resin, 1-10 parts of toughening agent, and flame retardant 5-18 parts, polyoxymethylene resin 0.1-3 parts and metal oxide 0.1-1 parts. In the polyphenylene ether material ignited by the heat-resistant wire of the present invention, the quality of the carbon layer is greatly enhanced through the catalytic carbonization of metal oxides and POM in the early stage of ignition, so that the HWI performance of the material is significantly improved, and it has better flame retardancy. Good results, through this method can be prepared with 0 grade HWI flame retardant PPE material.
Description
technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a high-heat wire ignition polyphenylene ether composition and a preparation method and application thereof. Background technique [0002] The hot wire ignition evaluates the difficulty of the material being ignited by the heating wire in the case of electrical short circuit, etc. If the material is easily ignited by the hot wire, it will be ignited quickly and cause a fire when the electrical short circuit occurs. Based on safety considerations, Underwriters Laboratories (UL) even mandates that plastic materials used to insulate live parts (or live parts with insulation thickness less than 0.71mm) must submit hot wire ignition (HWI) test results. [0003] Polyphenylene ether material (referred to as PPE) has been widely used in the field of electrical appliances due to its excellent insulation performance, flame retardancy and heat resistance. However, although PPE ...
Claims
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IPC IPC(8): C08L71/12C08L51/04C08L53/02C08L59/00C08L25/12C08K3/22C08K5/134C08K5/526C08K13/02
CPCC08L71/12C08K2003/2296C08K2003/2262C08L2201/02C08L2205/035C08L51/04C08L53/025C08L59/00C08L25/12C08K3/22C08K5/1345C08K5/526C08K13/02
Inventor 何志帅黄险波叶南飚禹权
Owner KINGFA SCI & TECH CO LTD