Halogen-free expansion type fire retardant and flame-proof polypropylene material

An intumescent flame retardant and intumescent technology, which is applied in the field of halogen-free intumescent flame retardants and flame-retardant polypropylene materials, can solve the problems of large amounts of flame retardants and unsatisfactory flame-retardant effects, and reduce human body temperature. Health hazards, effects of reducing physical and mechanical properties, and environmental protection effects

Inactive Publication Date: 2008-09-10
应急管理部四川消防研究所
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AI Technical Summary

Problems solved by technology

[0005] Although the polypropylene treated by the intumescent flame retardant method reported in the above literature can show low smoke, non-toxicity, good flame retardant effect and certain droplet resistance, there are sti...

Method used

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  • Halogen-free expansion type fire retardant and flame-proof polypropylene material

Examples

Experimental program
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Embodiment Construction

[0030] (1) The preparation method of "SCF101" used in each example

[0031] Mix 0.2 mol of pentaerythritol, 0.6 mol of phosphoric acid, and 0.27 g of aluminum chloride uniformly, heat up to 120° C., react for 2 hours, cool to room temperature, then add 0.9 mol of melamine and mix uniformly to obtain a white lumpy solid. The solid is crushed to a fine powder that can pass through a 120-mesh sieve, and then transferred to the reactor, reacted for 1.5 hours at a reaction temperature of 230°C, and cooled to room temperature; the product was washed with water and ethanol in sequence until the filtrate was neutral, and filtered , SCF101 intumescent flame retardant after drying and crushing.

[0032] (2) The compositions of flame retardant examples 1 to 11 are shown in Table 1.

[0033] (3) The preparation method of flame-retardant polypropylene material of each example

[0034] Using Examples 1-11 as flame retardants respectively, the corresponding flame-retardant polypropylene ma...

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Abstract

The invention relates to halogen-free expansion-type fire retardant and fire-retarding polypropylene material. The fire retardant is a composite expansion-type fire retardant consisting of melamine salt of bis (melabis) expansion-type fire retardant component, poly ammonium phosphate, triethylolisocyanurate, melamine cyanurate and melamine polyphosphate. Halogen-free expansion-type fire-retarding polypropylene material is made from polypropylene component, antioxidant, char-forming catalyst, phosphate ester coupling agent and the halogen-free expansion-type fire retardant through common milling. The halogen-free expansion-type fire retardant adopts MC or THEIC as one of the gas sources of the fire retardant, and is matched with melabis to substantially increase fire-retarding performance; moreover, the dosage of the halogen-free expansion-type fire retardant is less while ensuring fire-retarding performance, thereby furthest reducing the influence on the physical and mechanical properties of body materials such as polypropylene.

Description

technical field [0001] The invention relates to a halogen-free expansion flame retardant and a halogen-free expansion flame-retardant polypropylene material. Background technique [0002] Polypropylene (PP) is currently one of the resin materials widely used in many industries such as packaging, textiles, building materials, automobiles, electronics, office supplies and daily necessities. Its main disadvantage is that it is flammable, the oxygen index (LOI) is only 17.4-18.5, and a large number of molten droplets are generated during combustion, which is easy to spread the flame, which limits its partial application, so it is extremely important to solve the flame retardant problem of PP. [0003] In the research process of flame-retardant polypropylene materials in the past, halogen-containing flame retardants have been valued and occupied a dominant position because of their low addition amount, obvious flame-retardant effect and moderate price. But in its combustion proc...

Claims

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Application Information

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IPC IPC(8): C08K5/521C08K3/32C08K5/3492C08L23/12C08K13/02
Inventor 张翔唐勇李风兰彬张帆
Owner 应急管理部四川消防研究所
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