Environment-friendly foaming agent composition

A composition and foaming agent technology, which is applied in the field of foaming agent application, can solve the problems of high energy consumption, high thermal conductivity, and high GWP value of the whole machine, and achieve the effect of reducing thermal conductivity, small thermal conductivity, and low GWP value

Inactive Publication Date: 2014-06-25
ZHEJIANG QUHUA FLUOR CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The foaming agent composition disclosed in the above-mentioned patent has disadvantages such as high GWP value, high thermal conductivity, or high energy consumption of the whole machine during use. Therefore, it is necessary to develop a foaming agent composition with better foaming performance and environmental protection performance

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0033] Mix 600 grams of HFC-245fa and 400 grams of HFO-1233zd in a steel cylinder to obtain an environmentally friendly foaming agent. The mass percentage of HFC-245fa is 60%, and the mass percentage of HFO-1233zd is 40%. Use automatic comparison The boiling point tester can see that there is an azeotrope between HFC-245fa and HFO-1233zd. When HFO-1233zd with a high boiling point is added to the cylinder containing HFC-245fa, the temperature in the cylinder will drop from the equilibrium temperature, which proves that there is An azeotrope is formed with a boiling point of 16.8°C.

Embodiment 2

[0035] Mix 990 grams of HFC-245fa and 10 grams of HFO-1233zd in a steel cylinder to obtain an environmentally friendly foaming agent. The mass percentage of HFC-245fa is 99%, and the mass percentage of HFO-1233zd is 1%. The boiling point is determined with the same Example 1, the boiling point is 15.4°C.

Embodiment 3

[0037] Mix 700 grams of HFC-245fa and 300 grams of HFO-1233zd in a steel cylinder to obtain an environmentally friendly blowing agent, the mass percentage of HFC-245fa is 70%, the mass percentage of HFO-1233zd is 30%, and the boiling point is determined with the same Example 1, the boiling point is 16.4°C.

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Abstract

The invention provides an environment-friendly foaming agent composition which comprises the following components in percentage by mass: 60-99% of 1, 1, 1, 3, 3-pentafluoropropane and 1-40% of 1-chloro-3, 3, 3-trifluoropropene. The GWP value of the environment-friendly foaming agent prepared by the invention is lower than that of a single medium HFC-245fa, the composition has the advantages of low GWP value, small heat conductivity coefficient and low energy consumption, and can reduce the heat conductivity coefficient and the integral energy consumption level, so that the composition is the best choice of high performance hard insulating foam.

Description

technical field [0001] The invention relates to the application field of foaming agents, in particular to an environment-friendly foaming agent composition. Background technique [0002] The blowing agent systems currently used in the home appliance industry (including refrigerators, freezers and water heaters) to replace HCFC-141b mainly include cyclopentane, HFC-245fa, HFC-245fa / cyclopentane, and a small amount of R-134a, 365mfc And the all-water foaming system, each has its own advantages and disadvantages, and the physical properties of different foaming agents will directly affect the performance of the final foam product. HFC-245fa is non-flammable and does not require investment in explosion-proof equipment. Its foam products have lower thermal conductivity, better fluidity, better strength and dimensional stability, but its GWP value is higher, which will become increasingly strict in the future. Under the requirements of environmental protection, it will be gradual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/14
Inventor 雷俊贺辉龙张彦苏刚赵阳周华东
Owner ZHEJIANG QUHUA FLUOR CHEM
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