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An intumescent halogen-free flame-retardant high isotactic polybutene-1 material and its preparation method

A high isotactic polybutene, expansion type technology, applied in the field of isotactic polybutene-1 material and its preparation, halogen-free flame retardant materials, can solve the problems of life and property hazards, hinder firefighters' rescue work, etc., and achieve broad application The effect of small range, small mechanical properties and good mechanical properties

Active Publication Date: 2016-01-06
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This gas is very dangerous in a fire, because it spreads extremely fast, which seriously hinders the firefighters' rescue work in a fire, and causes great harm to people's lives and properties.

Method used

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  • An intumescent halogen-free flame-retardant high isotactic polybutene-1 material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This example provides an intumescent halogen-free flame-retardant high-isotactic polybutene-1 material, which is composed of the following raw materials in terms of weight percentage: polybutene-1 with an isotacticity of 93% is 89.8%, and the anti-oxidation Agent 225 is 0.2%, flame retardant FP-2100J is 10%. The used twin-screw extruder has a diameter of 25 cm, an aspect ratio of 1:32, and a processing temperature of 170°C to 185°C.

[0047] The intumescent halogen-free flame-retardant high isotactic polybutene-1 material of this example was prepared according to the above preparation method and molded for performance testing. The test results are shown in Table 1.

Embodiment 2

[0049] This example provides an intumescent halogen-free flame-retardant high isotactic polybutene-1 material, which is composed of the following raw materials in terms of weight percentage: polybutene-1 with an isotacticity of 93% is 79.8%, and the anti-oxidation Agent 225 is 0.2%, flame retardant FP-2100J is 20%. The used twin-screw extruder has a diameter of 25 cm, an aspect ratio of 1:32, and a processing temperature of 170°C to 185°C.

[0050] The intumescent halogen-free flame-retardant high isotactic polybutene-1 material of this example was prepared according to the above preparation method and molded for performance testing. The test results are shown in Table 1.

Embodiment 3

[0052] This example provides an intumescent halogen-free flame-retardant high-isotactic polybutene-1 material, which is composed of the following raw materials in terms of weight percentage: polybutene-1 with an isotacticity of 93% is 74.8%, and the anti-oxidation Agent 225 is 0.2%, flame retardant FP-2100J is 25%. The used twin-screw extruder has a diameter of 25 cm, an aspect ratio of 1:32, and a processing temperature of 170°C to 185°C.

[0053] The intumescent halogen-free flame-retardant high isotactic polybutene-1 material of this example was prepared according to the above preparation method and molded for performance testing. The test results are shown in Table 1.

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Abstract

The invention belongs to the field of modified plastics and provides an intumescent halogen-free flame retardant high isotactic polybutene-1 material and a preparation method thereof. The intumescent halogen-free flame retardant high isotactic polybutene-1 material is composed of the following raw materials in percentage by weight: 65-90% of high isotactic polybutene-1, 0.2% of antioxidant, 10-30% of intumescent halogen-free flame retardant, 0-5% of high-temperature-resistant lubricant and 0-10% of mineral fillers, wherein the total dosage of the raw materials is 100%. The modified plastics are prepared by mixing and pelleting through a twin-screw extruder. The intumescent halogen-free flame retardant high isotactic polybutene-1 material provides by the invention has excellent mechanical properties after reaching to high oxygen index and flame retardant level. The halogen-free flame retardant is friendly to the environment and generates no harmful gas in a fire to affect the life safety of people; and the prepared intumescent halogen-free flame retardant high isotactic polybutene-1 material is in good flame retardant effect, excellent in mechanical properties and wide in application range.

Description

technical field [0001] The invention belongs to the field of modified plastics, and relates to a halogen-free flame-retardant material, in particular to an intumescent halogen-free flame-retardant high isotactic polybutene-1 material and a preparation method thereof. Background technique [0002] Polybutene-1 has good physical and mechanical properties, outstanding creep resistance, low temperature resistance, environmental stress cracking resistance and high filler filling. It not only has good dielectric and chemical resistance, but also has good mechanical strength and high toughness. Its yield value, tensile strength and impact strength are 2 times, 6-10 times and 3-4 times that of LDPE respectively. Compared with other polyolefins, polybutene-1 has the best stress crack resistance. The creep resistance is higher than that of polyethylene and polypropylene, and the outstanding creep resistance remains unchanged up to 80°C under the action of stress not exceeding the yi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/20C08K3/30B29C47/92B29C48/92
CPCB29B9/06B29C48/022B29C48/04B29C48/40B29C48/911B29C48/92B29C2948/9259B29C2948/92704B29K2105/0026
Inventor 乔辉杨金兴史翎徐慧
Owner BEIJING UNIV OF CHEM TECH
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