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Phenolic foam thermal insulation material used for flat-plate solar collector

A flat-panel solar and phenolic foam technology, applied in the field of thermal insulation materials, can solve the problems of non-extensible water absorption, slightly poor thermal insulation performance, backward production technology, etc., to improve thermal aging performance, solve water tank shrinkage, and facilitate construction.

Inactive Publication Date: 2018-03-09
NANNING KEYU ENERGY TECH CO LTD
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  • 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

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A phenolic foam insulation material for flat solar collectors, comprising the following raw materials in parts by weight: 95 parts of phenolic resin; 13 parts of foaming agent; 10 parts of curing agent; 8 parts of flame retardant; 4 parts of emulsifier; Toughening agent 12 parts.

[0020] The foaming agent is a composite physical foaming agent, made of the following raw materials in parts by weight: 8 parts of n-pentane, 5 parts of n-hexane, 4 parts of n-heptane; the curing agent is phosphoric acid; the The flame retardant is a composite inorganic flame retardant, made of the following raw materials in parts by weight: 6 parts of red phosphorus masterbatch, 9 parts of aluminum hydroxide, and 8 parts of magnesium hydroxide; the emulsifier is polyacrylic acid; The toughening agent is made by mixing polyvinyl butyral and carboxylated nitrile rubber at a ratio of 1:1.

[0021] The preparation method of the phenolic foam insulation material for flat solar heat collectors co...

Embodiment 2

[0023] A phenolic foam insulation material for flat solar collectors, comprising the following raw materials in parts by weight: 92 parts of phenolic resin; 11 parts of foaming agent; 9 parts of curing agent; 8 parts of flame retardant; 4 parts of emulsifier; 13 parts of toughening agent.

[0024] The foaming agent is a composite physical foaming agent, made of the following raw materials in parts by weight: 7 parts of n-pentane, 6 parts of n-hexane, and 5 parts of n-heptane; the curing agent is hydrochloric acid and benzenesulfonate The acid is mixed at 1:1.5; the flame retardant is a composite inorganic flame retardant, made of the following raw materials in parts by weight: 7 parts of red phosphorus masterbatch, 10 parts of aluminum hydroxide, 7 parts of magnesium hydroxide parts; the emulsifier is polyacrylic acid; the toughening agent is polyvinyl butyral.

[0025] The preparation method of the phenolic foam insulation material for flat solar heat collectors comprises th...

Embodiment 3

[0027] A phenolic foam insulation material for flat solar collectors, comprising the following raw materials in parts by weight: 100 parts of phenolic resin; 15 parts of foaming agent; 11 parts of curing agent; 19 parts of flame retardant; 4 parts of emulsifier; Toughening agent 12 parts.

[0028] The foaming agent is a composite physical foaming agent made of the following raw materials in parts by weight: 10 parts of n-pentane, 6 parts of n-hexane, and 3 parts of n-heptane; the curing agent is phosphoric acid and hydrochloric acid according to 1:1 mixing; the flame retardant is a composite inorganic flame retardant, made of the following raw materials in parts by weight: 8 parts of red phosphorus masterbatch, 9 parts of aluminum hydroxide, 8 parts of magnesium hydroxide; The emulsifier is polyacrylic acid; the toughening agent is prepared by mixing polyvinyl butyral and polyethylene glycol at a ratio of 1:1.8.

[0029] The preparation method of the phenolic foam insulation ...

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PUM

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Abstract

The invention discloses a phenolic foam thermal insulation material used for a flat-plate solar collector, containing the following materials in parts by weight: 90-100 parts of phenolic foam, 10-15 parts of foaming agent, 8-12 parts of curing agent, 7-9 parts of flame retardant, 3-5 parts of emulsifying agent, and 10-15 parts of flexibilizer, wherein the flame retardant is a compound inorganic flame retardant and is prepared from red phosphorus masterbatch, aluminium hydroxide and magnesium hydroxide. The phenolic foam thermal insulation material has the advantages of being capable of preventing fire and retarding flame, low in heat conductivity coefficient, good in heat insulation performance and good in compression resistant property, can be exposed in sunlight for a long time, is widein working temperature scope and can prolong the service life and improve the quality stability of the flat-plate solar collector.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a phenolic foam thermal insulation material used for flat solar heat collectors. Background technique [0002] With the increasing shortage of energy and the increasing pressure on environmental protection, countries around the world have begun to promote the development of renewable energy, among which solar energy is the most widely used and developed renewable energy with the best development prospects, and has been widely used in various industries , the solar water heater industry is one of them. Our country is rich in solar energy resources and has broad prospects for solar energy utilization. At present, it is the first user and producer of solar water heaters in the world. [0003] Flat-plate solar water heaters are mainly composed of flat-plate collectors, water storage tanks, water pipes, brackets and accessories. The flat plate collector is a key component...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08L29/14C08L33/02C08L13/00C08L71/02C08K3/02C08K3/22C08J9/14
CPCC08J9/0066C08J9/141C08J2203/14C08J2203/202C08J2361/06C08J2429/14
Inventor 谢彤方凤才卓民权黄克准阮冰芯刘朝用
Owner NANNING KEYU ENERGY TECH CO LTD
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