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A kind of polyphenylene sulfide with high glow wire flame retardant performance and preparation method thereof
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A technology of polyphenylene sulfide and flame retardancy, which is applied in the field of plastic flame retardancy, can solve the problems that cannot meet the requirements of glow wire flame retardancy, and cannot completely block the contact between flammable gas and oxygen, so as to facilitate large-scale promotion, use and production The effect of low cost and convenient and accurate batching
Inactive Publication Date: 2018-08-17
中山市纳普工程塑料有限公司
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[0003] At present, polyphenylene sulfide flame retardant materials have been widely used in electronic and electrical products and household appliances. Although conventional polyphenylene sulfide flame retardant materials can achieve good vertical combustion levels, such as 1.6mm, V-0, However, because it cannot completely block the contact between the flammable gas and oxygen produced by the material when the high-temperature glow wire is applied, and thus burns, it can no longer meet the increasing flame retardant requirements of the electronic and electrical products and household appliances industry, such as glow wire 850 degrees does not ignite
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no. 1 example
[0023] The high-glow wire flame-retardant polyphenylene sulfide comprises the following raw materials in parts by weight: 100 parts of polyphenylene sulfide, 45-65 parts of compound flame retardant and 60-80 parts of chopped glass fiber; The flame retardant is composed of the following raw materials in parts by weight: 100 parts of brominated polystyrene, 40-60 parts of melamine cyanurate, 100 parts of antimony phosphate and 20-40 parts of glow wire synergist.
[0024] The compound flame retardant is composed of the following raw materials in parts by weight: 100 parts of brominated polystyrene, 45-55 parts of melamine cyanurate, 100 parts of antimony phosphate and 25-35 parts of glow wire synergist.
[0025] A preparation method of polyphenylene sulfide with high glow-wire flame-retardant performance, comprising the following steps:
[0026] Step 1, weigh polyphenylene sulfide, brominated polystyrene, melamine cyanurate, antimony phosphate and glow wire synergist according to...
no. 2 example
[0034] In this embodiment, the parts by weight of each raw material are as follows: polyphenylene sulfide 100Kg, brominated polystyrene 16Kg, melamine cyanurate 8.4Kg, antimony phosphate 16Kg, glow wire synergist 4.6Kg, chopped Glass fiber 80Kg; weighed by weight.
[0035] At this time, the rotating speed of the high-speed mixer is 680 rpm, the maximum stirring linear velocity of the high-speed mixer is 20 m / s, and the mixing time is 4 minutes. Finally a second sample was made.
[0036] Refer to the first embodiment for the rest of the undescribed parts, and will not repeat them here.
no. 3 example
[0038] In this embodiment, the parts by weight of each raw material are as follows: polyphenylene sulfide 100Kg, brominated polystyrene 17.8Kg, melamine cyanurate 8Kg, antimony phosphate 17.8Kg, glow wire synergist 6.4Kg, short Cutglass fiber 75Kg; weigh by weight.
[0039] At this time, the rotating speed of the high-speed mixer is 650 rpm, the maximum stirring linear velocity of the high-speed mixer is 20 m / s, and the mixing time is 5 minutes. Finally a third sample was prepared.
[0040] Refer to the first embodiment for the rest of the undescribed parts, and will not repeat them here.
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Abstract
High glow-wire flame-retardancy polyphenylene sulfide and a preparation method thereof are provided; the high glow-wire flame-retardancy polyphenylene sulfide comprises the following raw materials in parts by weight: 100 parts of polyphenylene sulfide, 45-65 parts of a compound flame retardant, and 60-80 parts of a short cutglass fiber. The compound flame retardant comprises the following raw materials in parts by weight: 100 parts of brominated polystyrene, 40-60 parts of melamine cyanurate, 100 parts of antimonyphosphate and 20-40 parts of a glow-wire synergistic agent. The compound flame retardant comprises the following raw materials in parts by weight: 100 parts of brominated polystyrene, 45-55 parts of melamine cyanurate, 100 parts of antimonyphosphate, and 25-35 parts of a glow-wire synergistic agent. During the preparation, the polyphenylene sulfide, brominated polystyrene, melamine cyanurate, antimonyphosphate and the glow-wire synergistic agent are weighed according to the raw material composition and are evenly mixed to obtain the mixture. The high glow-wire flame-retardancy polyphenylene sulfide has the advantages of low production cost and good flame retardant effect.
Description
technical field [0001] The invention relates to the field of flame retardant plastics, in particular to polyphenylene sulfide with high glow wire flame retardant performance and a preparation method thereof. Background technique [0002] The glow wire flame retardant test as a material is mainly used to simulate the thermal stress caused by a heat source such as a glowing element or an overload resistance or an ignition source in a short period of time, and to evaluate the risk of fire with simulation technology, which is suitable for electronic and electrical products and household appliances. plastic or non-metallic insulating material parts. [0003] At present, polyphenylene sulfide flame retardant materials have been widely used in electronic and electrical products and household appliances. Although conventional polyphenylene sulfide flame retardant materials can achieve good vertical combustion levels, such as 1.6mm, V-0, However, because it cannot completely block t...
Claims
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