Phenolic foam thermal-insulation material and preparation method thereof

A technology of thermal insulation material and phenolic foam, applied in the field of phenolic foam thermal insulation material and its preparation, can solve the problems of non-extensible water absorption, slightly poor thermal insulation performance, backward production technology, etc. low cost effect

Inactive Publication Date: 2018-02-09
NANNING KEYU ENERGY TECH CO LTD
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The phenolic board produced abroad has good thermal insulation performance, but the current domestic promotion efforts are small, and the production technology is relatively backward, and its thermal insulation performance is slightly worse than that of foreign products.
Domestically produced phenolic boards have weaknesses such as easy pulverization, low mechanical strength, brittleness, no extensibility and high water absorption.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A phenolic foam insulation material, comprising the following raw materials by weight: 80 parts of phenolic resin; 10 parts of glass fiber; 3 parts of expandable graphite; 10 parts of silane coupling agent; 12 parts of foaming agent; and 9 parts of curing agent.

[0023] The glass fiber is a chopped glass fiber with a diameter of 10-20 microns and a length of 3-6 mm, which is made of glass balls or waste glass as raw materials through high temperature melting, wire drawing, winding, weaving and other processes.

[0024] The preparation method of the expandable graphite is as follows: using 50-mesh high-carbon flake graphite, concentrated sulfuric acid, potassium dichromate and hydrogen peroxide as raw materials, stirring continuously for 40 min under the condition of 40 DEG C, and washing with water until neutral after the reaction is completed, It was obtained by vacuum drying after centrifugation.

[0025] The silane coupling agent is vinyl silane; the foaming agent i...

Embodiment 2

[0028] A phenolic foam insulation material comprises the following raw materials by weight: 90 parts of phenolic resin; 15 parts of glass fiber; 4 parts of expandable graphite; 10 parts of silane coupling agent; 12 parts of foaming agent; and 10 parts of curing agent.

[0029] The glass fiber is a chopped glass fiber with a diameter of 10-20 microns and a length of 3-6 mm, which is made of glass balls or waste glass as raw materials through high temperature melting, wire drawing, winding, weaving and other processes.

[0030] The preparation method of the expandable graphite is as follows: using 50-mesh high-carbon flake graphite, concentrated sulfuric acid, potassium dichromate and hydrogen peroxide as raw materials, stirring continuously for 40 min under the condition of 40 DEG C, and washing with water until neutral after the reaction is completed, It was obtained by vacuum drying after centrifugation.

[0031] The silane coupling agent is methacryloxysilane; the foaming ag...

Embodiment 3

[0034] A phenolic foam insulation material comprises the following raw materials by weight: 85 parts of phenolic resin; 15 parts of glass fiber; 4 parts of expandable graphite; 10 parts of silane coupling agent; 10 parts of foaming agent; and 12 parts of curing agent.

[0035] The glass fiber is a chopped glass fiber with a diameter of 10-20 microns and a length of 3-6 mm, which is made of glass balls or waste glass as raw materials through high temperature melting, wire drawing, winding, weaving and other processes.

[0036] The preparation method of the expandable graphite is as follows: using 50-mesh high-carbon flake graphite, concentrated sulfuric acid, potassium dichromate and hydrogen peroxide as raw materials, stirring continuously for 40 min under the condition of 40 DEG C, and washing with water until neutral after the reaction is completed, It was obtained by vacuum drying after centrifugation.

[0037] The silane coupling agent is methacryloyloxysilane; the foaming...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
lengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a phenolic foam thermal-insulation material and a preparation method thereof. The material is prepared from raw materials in parts by weight as follows: 80-90 parts of phenolicresin, 10-15 parts of glass fiber, 2-4 parts of expansible graphite, 7-12 parts of a silane coupling agent, 10-15 parts of a foaming agent and 8-12 parts of a curing agent. The phenolic foam thermal-insulation material is mainly applied to thermal insulation materials of flat-plate solar collectors and has good heat resistance, insulativity, corrosion resistance, wide work temperature range and lower production cost; the brittleness of phenolic foam is improved and the compressive strength and mechanical performance of the phenolic foam are improved to a certain extent by the aid of the addedglass fiber and expansible graphite, the service life of the flat-plate solar collectors can be prolonged, and the quality stability of the flat-plate solar collectors can be improved.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a phenolic foam thermal insulation material and a preparation method thereof. Background technique [0002] With the increasing shortage of energy and the increasing pressure on environmental protection, all countries in the world have begun to promote the development of renewable energy. Among them, solar energy is the most widely used and developed renewable energy with the best development prospects, and has been widely used in all walks of life. , the solar water heater industry is one of them. my country is rich in solar energy resources and has broad prospects for solar energy utilization. At present, it is the first country in the world for the use and production of solar water heaters. [0003] Insulation materials are generally materials with a thermal coefficient of less than or equal to 0.12. The traditional thermal insulation materials are mainly based on...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08K13/04C08K7/14C08K7/24C08K5/5425C08J9/14
CPCC08J9/141C08J2203/14C08J2203/202C08K5/5425C08K7/14C08K7/24C08K13/04C08L61/06
Inventor 谢彤卓民权黄克准金秋生马付杰刘朝用
Owner NANNING KEYU ENERGY TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap