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Flame-retardant EPDM foaming thermal insulation material and preparation method thereof

A technology of thermal insulation material and flame retardancy, applied in the field of EPDM foam thermal insulation material and its preparation, can solve the problems of reducing the mechanical properties of elastomers, high toxicity and environmental pollution, poor processing stability, etc., and achieves improved mechanical strength, flame retardant The effect of good smoke suppression performance and comprehensive performance improvement

Active Publication Date: 2021-08-20
TAIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the flame retardant and smoke suppressant of EPDM mainly include halogenated antimony flame retardant-smoke suppressant compound system, hydroxide inorganic flame retardant and smoke suppressant and intumescent flame retardant, but they all have different disadvantages For example, although the halide-antimony flame retardant-smoke suppressant compound system has excellent smoke suppression and flame retardant effect, it has great toxicity and environmental pollution; although the hydroxide-based inorganic flame retardant and smoke suppressant has low toxicity and good stability, but the addition of Intumescent flame retardants have problems such as poor processing stability and low flame retardant efficiency.

Method used

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  • Flame-retardant EPDM foaming thermal insulation material and preparation method thereof
  • Flame-retardant EPDM foaming thermal insulation material and preparation method thereof
  • Flame-retardant EPDM foaming thermal insulation material and preparation method thereof

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preparation example Construction

[0028] The invention provides a flame-retardant EPDM foam insulation material and a preparation method thereof, which have good flame-retardant performance and high mechanical strength.

[0029] The scanning electron microscope picture of the section of this kind of flame-retardant EPDM foam insulation material is as follows figure 1 As shown, it includes 100 parts by mass of EPDM, 10-40 parts of naphthenic oil, 5-25 parts of carbon black, 5-25 parts of intumescent flame retardant microparticles, 5-30 parts of modified hydrotalcite, 5 parts ~15 parts of nano-silica, 2.0-6.5 parts of vulcanizing agent Luperox F40P-SP210, 0.5-3 parts of super-speed vulcanization accelerator SE-2, 1-4.5 parts of nano-zinc oxide, 1-3 parts of zinc stearate, 1-3 parts 2 parts of stearic acid, 1.5-4.5 parts of foaming agent H, 0.5-1.5 parts of antioxidant BHT. As a preference, in this embodiment, the intumescent flame retardant microparticles are composed of lignin, ammonium polyphosphate, melamine...

Embodiment 1

[0032]S1, 100 parts of EPDM, 40 parts of naphthenic oil, 25 parts of carbon black, 25 parts of intumescent flame retardant microparticles, 30 parts of modified hydrotalcite, 15 parts of nano silicon dioxide, 1 part of nano zinc oxide, 1 part Zinc stearate, 1 part of stearic acid, 1.5 parts of blowing agent H, 0.5 part of antioxidant BHT were added to the internal mixer and mixed for 12 minutes; as a preference, in this embodiment, the specific preparation of modified hydrotalcite The method is as follows: uniformly disperse the hydrotalcite in the water phase, add a certain amount of sodium dodecylsulfonate and ammonium molybdate, stir and react at 65-95 DEG C for 6-18 hours, and separate to obtain the modified hydrotalcite. And the hydrotalcite, sodium dodecylsulfonate and ammonium molybdate are 100 parts by mass of hydrotalcite, 5-20 parts of sodium dodecylsulfonate and: 1-8 parts of ammonium molybdate, expansion type The specific preparation method of flame retardant microp...

Embodiment 2

[0037] S1, 100 parts of EPDM, 10 parts of naphthenic oil, 5 parts of carbon black, 5 parts of intumescent flame retardant particles, 5 parts of modified hydrotalcite, 5 parts of nano silicon dioxide, 4.5 parts of nano zinc oxide, 3 parts Zinc stearate, 2 parts of stearic acid, 4.5 parts of blowing agent H, 1.5 parts of antioxidant BHT were added to the internal mixer and mixed for 12 minutes; as a preference, in the present embodiment, the specific The preparation method is as follows: uniformly disperse the hydrotalcite in the water phase, add a certain amount of sodium dodecylsulfonate and ammonium molybdate, stir and react at 65-95°C for 6-18 hours, and separate to obtain the modified hydrotalcite. And the hydrotalcite, sodium dodecylsulfonate and ammonium molybdate are 100 parts by mass of hydrotalcite, 5-20 parts of sodium dodecylsulfonate and: 1-8 parts of ammonium molybdate, expansion type The specific preparation method of flame retardant microparticles is: put lignin,...

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Abstract

The invention discloses a flame-retardant EPDM foaming thermal insulation material and a preparation method thereof. The method comprises the following steps of adding EPDM, naphthenic oil, carbon black, intumescent flame retardant microparticles, modified hydrotalcite, 5-15 parts of nano silicon dioxide, a vulcanizing agent Luperox F40P-SP210, an overspeed vulcanization accelerator SE-2, nano zinc oxide, zinc stearate, stearic acid, a foaming agent H and an antioxidant BHT into an internal mixer for mixing for 8-12 minutes, adding a vulcanizing agent Luperox F40P-SP210 and an overspeed vulcanization accelerator SE-2 into an internal mixer, mixing for 3-5 minutes, discharging to obtain EPDM mixed rubber, and vulcanizing and foaming the obtained EPDM mixed rubber in a press vulcanizer to obtain the flame-retardant EPDM foaming thermal insulation material. The flame-retardant EPDM foaming thermal insulation material and the preparation method thereof have the advantages that the flame-retardant performance is good, and the mechanical strength is high.

Description

technical field [0001] The invention relates to the technical field of flame-retardant thermal insulation materials, in particular to a flame-retardant EPDM foam thermal insulation material and a preparation method thereof. Background technique [0002] Thermal insulation materials and technologies developed rapidly after the worldwide energy crisis in the 1970s. With the shortage of energy and the enhancement of people's awareness of environmental protection, the status of energy saving in the national economy will become higher and higher. It is conducive to the promotion and application of new thermal insulation materials and technologies. my country's carbon dioxide emissions strive to reach the peak before 2030, and strive to achieve carbon neutrality before 2060. Energy saving is the most important way for my country to achieve the goal of peaking carbon emissions. Only by keeping primary energy consumption as low as possible can the peak of carbon dioxide emissions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L97/00C08K13/06C08K9/04C08K9/02C08K3/26C08K3/32C08K5/3492C08J9/10
CPCC08J9/0061C08J9/107C08J9/009C08J9/0066C08J9/0028C08J2323/16C08J2497/00
Inventor 蔡沁伶秦子豪任佳豪夏璟马明宇黄国波常玲
Owner TAIZHOU UNIV
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