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Phenolic foam plastics and preparation method thereof and preparation method of foam carbon

A technology of phenolic foamed plastics and foamed carbon, which is applied in the field of foamed carbon materials, can solve the problems of large shrinkage rate and low yield rate, and achieve the effects of increased yield rate, convenient operation, and improved dimensional stability

Active Publication Date: 2013-04-24
SHAANXI COAL & CHEM TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The third object of the present invention is to solve the problem of large shrinkage and low yield of phenolic foam in the carbonization process of preparing foamed carbon materials. Modified fly ash is used to fill phenolic foam as a rigid skeleton to improve the performance of phenolic foam. Dimensional stability in the carbonization process, the preparation of lightweight and heat-insulating foam carbon materials, and the effective comprehensive utilization of fly ash

Method used

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  • Phenolic foam plastics and preparation method thereof and preparation method of foam carbon

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Embodiment 1

[0061] Preparation process of modified fly ash

[0062] Titanate coupling agent: dioctyl phosphate acyloxy titanate (NDZ-101), aluminate coupling agent: distearyloxy isopropyl aluminate (SG-Al821), isopropyl The alcohols were mixed according to the mass ratio of 20:20:60, and stirred for 20 minutes to prepare a composite coupling agent solution. Sieve the fly ash to select components below 200 mesh, put them in a drying oven, and dry them at 100°C for 4 hours; then put the dried fly ash into a high-speed mixer, and spray the composite coupling agent solution into the In a high-speed rotation system of 1100r / min, activate for 20min, and finally bake in an oven at 110°C for 1.5h to remove the solvent, and the modified fly ash microbeads can be obtained.

[0063] In the above-mentioned process of preparing modified fly ash, the fly ash and the composite coupling agent solution are prepared according to the following mass ratio:

[0064] 100 parts of fly ash;

[0065] Composite...

Embodiment 2

[0072] Preparation process of modified fly ash

[0073] Titanate coupling agent: dioctyl phosphate acyloxy titanate (NDZ-101), silane coupling agent: г-(methacryloyloxy)propyl trimethoxysilane (KH-570), Isopropanol was mixed according to the mass ratio of 10:20:70, and stirred for 15 minutes to prepare a composite coupling agent solution. Sieve the fly ash to select components below 200 mesh, put them in a drying oven, and dry them at 110°C for 2 hours; then put the dried fly ash into a high-speed mixer, and spray the composite coupling agent solution into the In a high-speed rotation system of 1500r / min, activate for 10min, and finally bake in an oven at 120°C for 1h to remove the solvent, and the modified fly ash microbeads can be obtained.

[0074] In the above-mentioned process of preparing modified fly ash, the fly ash and the composite coupling agent solution are prepared according to the following mass ratio:

[0075] 100 parts of fly ash;

[0076] 13 parts of compos...

Embodiment 3

[0083] Preparation of modified fly ash process:

[0084] Mix borate coupling agent: PRA-101, silane coupling agent: г-aminopropyltriethoxysilane (KH-550), and isopropanol according to the mass ratio of 25:25:50, and stir for 10 minutes , to prepare a composite coupling agent solution. Sieve the fly ash to select components below 200 mesh, put them in a drying oven, and dry them at 120°C for 2 hours; then put the dried fly ash into a high-speed mixer, and spray the composite coupling agent solution into the In a high-speed rotation system of 1000r / min, activate for 15min, and finally bake in an oven at 100°C for 1h to remove the solvent, and the modified fly ash microbeads can be obtained.

[0085] In the above-mentioned process of preparing modified fly ash, the fly ash and the composite coupling agent solution are prepared according to the following mass ratio:

[0086] 100 parts of fly ash;

[0087] 11 parts of composite coupling agent solution;

[0088] Modified fly ash...

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Abstract

The invention discloses phenolic foam plastics and a preparation method thereof and a preparation method of foam carbon. The preparation method for phenolic foam plastics comprises the following steps of 1) fully stirring phenolic resin and modified fly ash microspheres and dispersing uniformly; 2) adding a curing agent, a foaming agent and a foam stabilizer into a mixture; and 3) pouring the mixture into a preheated die, drying and demoulding so as to obtain modified fly ash padded phenolic foam plastics. The preparation method for foam carbon comprises the following steps of putting the modified fly ash padded phenolic foam plastics into a carbonization furnace, carbonizing under the protection of N2 / Ar, and then cooling down in the carbonization furnace so as to obtain a foam carbon material. The invention also relates to a preparation method for the modified fly ash microspheres and a preparation method for a raw material composite coupling reagent. The phenolic foam plastics padded by the modified ash fly is taken as a rigid skeleton, so that the size stability of the phenolic foam in carbonization process is improved, the light heat-insulated foam carbon material is prepared, and the fly ash is utilized effectively and comprehensively.

Description

technical field [0001] The invention relates to the surface modification of fly ash microbeads, which mainly uses chemical coupling agent for surface treatment, improves the chemical activity of fly ash microbeads, increases the compatibility with high polymer resin matrix, and utilizes modified Fly ash microbeads reinforced phenolic foam plastics. Modified fly ash is used to fill the phenolic foam plastics as a rigid skeleton to prepare a lightweight thermal insulation foam carbon material. Background technique [0002] Phenolic foam is a kind of foam material obtained by chemical foaming or physical foaming under the action of foamable phenolic resin under the action of surfactant, foaming agent, curing agent, etc. It is the fastest growing foam insulation material at present. varieties. Phenolic foam makes full use of the structural characteristics of organic materials and solves the most prominent combustion problem of organic materials. It has good fire resistance wit...

Claims

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Application Information

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IPC IPC(8): C08L61/10C08L61/12C08L61/08C08K9/06C08K9/04C08K3/00C08J9/14C09C1/40C09C3/08C09C3/12C01B31/02C01B32/05
Inventor 付东升杨阳张云唐应吉郑化安
Owner SHAANXI COAL & CHEM TECH INST