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Intumescent flame retardant polyethylene containing organosilicon compound

A technology of organosilicon compound and flame-retardant polyethylene, which is applied in the field of polyolefin flame-retardant products, can solve the problems of poor drop suppression of flame retardants, poor mechanical properties and physical properties, a large amount of corrosive gases and toxic gases, etc. Oxygen index flame retardancy, improvement of vertical combustion, and reduction of adverse effects

Active Publication Date: 2011-01-19
HANGZHOU GAOXIN RUBBER & PLASTIC MATERIALS CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages: the flame retardant is poor in suppressing dripping, and when it burns, it generates a large amount of smoke, produces a large amount of corrosive gas and toxic gas, and brings great suffering to fire fighting, escape and recovery work
Its disadvantages: their flame retardancy is not very strong and requires a large amount of addition, which makes the mechanical properties and some physical properties of the material worse
Although the polyethylene treated with these flame retardants exhibits low-smoke, non-toxic, good flame-retardant effect and certain droplet resistance, there are still some problems to varying degrees: the flame-retardant effect is not ideal enough, and the droplet resistance is not satisfactory. Sex still needs to be improved

Method used

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  • Intumescent flame retardant polyethylene containing organosilicon compound
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  • Intumescent flame retardant polyethylene containing organosilicon compound

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Embodiment Construction

[0027] The preparation method of the present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention is not limited thereto.

[0028] (1) synthesis of pentaerythritol ester:

[0029] With 3.00g pentaerythritol, 14.03g 1-oxo-1-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2,2,2]octane (PEPA) acid chloride product was added and placed Stir to dissolve 100mL of dioxane in a three-neck flask, and add 0.16mL of pyridine dropwise; heat up to 95-105°C for 6 hours; cool to room temperature, and then wash the product 1 with dioxane and chloroform respectively ~2 times to obtain a white solid product; finally dried in a vacuum oven at 70°C for later use. The specific structure of the infrared spectrum of this pentaerythritol ester product obtained is as follows: 3456cm -1 and 1121cm -1 For O-H; 2924cm -1 It is an aliphatic C-H structure; 1736cm -1 and 1234cm -1 For ester group; 1295cm -1 and 1001cm -1 Phosp...

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Abstract

The invention belongs to the technical field of polyolefin flame retardant products and particularly relates to intumescent flame retardant polyethylene containing an organosilicon compound, which simultaneously contains intumescent compounded flame retardant and the organosilicon compound and has higher flame retardant efficiency. The intumescent flame retardant polyethylene containing the organosilicon compound also contains a metal oxide hydrate containing an organosilicon flame retardant synergist and comprises the following compositions in percentage by weight: 70-80 percent of polyethylene, 17-29.5 percent of compounded intumescent flame retardant and 0.5-3 percent of the metal oxide hydrate containing the organosilicon flame retardant synergist.

Description

technical field [0001] The invention belongs to the technical field of polyolefin flame retardant products. Specifically, the invention relates to an intumescent flame retardant containing an organic silicon compound with higher flame retardant efficiency containing an intumescent compound flame retardant and an organic silicon compound. polyethylene. Background technique [0002] Polyethylene is widely used in many industries such as packaging, building materials, automobiles, electronics / electrics, daily necessities, etc. due to its light weight, low toxicity, excellent insulation and ultimate performance, but its high flammability and melting drop after burning It is easy to cause new disasters and casualties, making it difficult to achieve high flame retardant levels required in the electrical and construction industries, thus greatly affecting its application in these industries. [0003] Flame retardants are a class of additives that prevent polymer materials from bei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/02C08K5/527C08K3/32C08K5/3492C08K3/22C08K5/544C07F9/6574C07F7/18
Inventor 沈治华
Owner HANGZHOU GAOXIN RUBBER & PLASTIC MATERIALS CO LTD
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