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Preparation method of nano mesoporous functional mineral composite heat insulating and heat preserving core material

A nano-mesoporous, thermal insulation technology, applied in the field of new material preparation, can solve the problems of high thermal conductivity, low mechanical strength of thermal insulation materials, and unsatisfactory flame retardant grades.

Inactive Publication Date: 2021-07-13
吉林吉大蓝创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a method for preparing a nano-mesoporous functional mineral composite thermal insulation core material in order to solve the problems of low mechanical strength, high thermal conductivity, and low flame-retardant grade of existing thermal insulation materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] A nano mesoporous functional mineral composite thermal insulation core material, which is prepared by the following method:

[0068] 1. Preparation of polymer organic materials

[0069] 65~85 parts of EPP primary particles, 5~15 parts of zinc oxide, 5~10 parts of calcium oxide, 5~10 parts of ferric oxide are foamed into EPP foam particles through pre-expanding machine; EPP foam particles can be Reach 30~45 times of primary particles.

[0070] 70~88 parts of EPS primary particles, 5~15 parts of zinc oxide, 2~5 parts of calcium oxide, 5~10 parts of ferric oxide are pre-foamed into EPS foam particles, and EPS foam particles can be Reaching 40~50 times of primary particles.

[0071] 2. Polymer organic material coating

[0072] Take 5-10 parts of phenolic resin, 3-5 parts of nano-zinc oxide, and 1-3 parts of nano-silicon oxide, stir in a mixing device at room temperature, and rotate at a speed of 600-800 rpm, and mix well to form a flame-retardant bond. agent; put 5-10 p...

Embodiment 2

[0082] A composite thermal insulation core material produced from nano mesoporous functional minerals, which is prepared by the following method:

[0083] 1. Preparation of polymer organic materials

[0084] 65~85 parts of EPP primary particles, 5~15 parts of zinc oxide, 5~10 parts of calcium oxide, 5~10 parts of ferric oxide are foamed into EPP foam particles through pre-expanding machine; EPP foam particles can be Reaching 40~45 times of primary particles.

[0085] 65~85 parts of EPS primary particles, 5~15 parts of zinc oxide, 5~10 parts of calcium oxide, 5~10 parts of ferric oxide are pre-foamed into EPS foam particles, and EPS foam particles can be Reach 30~45 times of primary particles.

[0086] 2. Polymer organic material coating

[0087] Take 1-5 parts of phenolic resin, 5-10 parts of nano-zinc oxide, and 3-5 parts of nano-silicon oxide, stir at room temperature in a mixing device, and mix at a speed of 600-800 rpm to form a flame-retardant bond. agent; put 5-10 pa...

Embodiment 3

[0097] A composite thermal insulation core material produced from nano mesoporous functional minerals, which is prepared by the following method:

[0098] 1. Preparation of polymer organic materials

[0099] 96~98 parts of EPS primary particles, 1~2 parts of zinc oxide, 1~2 parts of ferric oxide are foamed into EPS foam particles by pre-expansion machine, and EPS foam particles can reach 30~50 parts of primary particles. times.

[0100] 2. Polymer organic material coating

[0101] Take 1-3 parts of phenolic resin, 5-10 parts of nano-zinc oxide, and 3-5 parts of nano-silicon oxide, stir in a mixing device at room temperature, and rotate at a speed (100-150 rpm), and mix well to form a flame-retardant bond. agent; put 5-10 parts of flame-retardant binder and 30-50 parts of EPS foam particles into the mold box for uniform stirring at a speed of 650-700 rpm, add the flame-retardant binder, and adjust the speed to 550- 600 rpm to make it evenly mixed.

[0102] 3. Preparation of...

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Abstract

The invention discloses a nano mesoporous functional mineral composite heat insulating and heat preserving core material. The core material is prepared by the following method: 1) preparing a polymer organic material; 2) polymer organic material film coating: taking phenolic resin, nano-zinc oxide and nano-silicon oxide, and uniformly mixing them to synthesize a flame-retardant binder; putting EPP foamed particles into a mold box, uniformly stirring, adding the flame-retardant binder, and uniformly mixing; 3) preparing inorganic powder mineral slurry: adding powder minerals into a reaction kettle, fully and uniformly stirring in the reaction kettle and adding water to form the thick inorganic powder mineral slurry; (4) mixing and stirring: mixing the foamed particles coated with the film in the step (2) with the inorganic powder mineral slurry, injecting the mixture into a mixing box, adding nano mesoporous minerals, and stirring; and (5) curing and shaping: pressurizing and curing the mixture obtained in the step (4) at normal temperature, demolding to form blocks, and cooling. The heat value of the prepared heat preserving core material is less than 20, the K value is less than or equal to 0.040 w / m.k, the oxygen index is more than 30, and the hydrophobic rate is more than 99%.

Description

technical field [0001] The invention belongs to the field of preparation of new materials, and in particular relates to a method for preparing a composite thermal insulation core material of nano mesoporous functional minerals. Background technique [0002] In today's increasingly tight resources, energy conservation and environmental protection is our goal. Research on thermal insulation materials helps save resources, and can improve the current severe environmental problems such as smog. [0003] Insulation materials are characterized by low thermal conductivity. In my country, the range of thermal conductivity (λ) is used to define insulation materials. Materials with λ less than 0.12W / (m K) (temperature ≤ 359°C) can be called insulation materials. [0004] At present, more insulation materials should be used in my country, which can be divided into three categories: [0005] 1. Organic insulation materials [0006] Organic insulation materials are the most widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/00B29C67/24B29C67/20C04B28/04B29K105/04
CPCB29C69/007B29C67/242B29C67/20C04B28/04B29K2105/04B29K2105/0026B29K2105/0047C04B14/106C04B14/042C04B14/202C04B14/043
Inventor 姜占国张成钢潘守信李振龙李雯琪
Owner 吉林吉大蓝创科技有限公司