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A kind of polyurethane combined polyether, blade for wind power generation, production method and application

A technology of combining polyether and production method, applied in the field of polyurethane combined polyether, can solve the problems of heavy blades for wind power generation, unsuitable for long-term use, short service life, etc. low cost effect

Active Publication Date: 2018-07-13
SHANGHAI DONGDA POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a combination of polyurethane polyether, Blade for wind power generation, production method and application

Method used

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  • A kind of polyurethane combined polyether, blade for wind power generation, production method and application
  • A kind of polyurethane combined polyether, blade for wind power generation, production method and application
  • A kind of polyurethane combined polyether, blade for wind power generation, production method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Prepare polyurethane combination polyether according to the composition in table 1, described polyurethane combination polyether comprises following raw material component by weight:

[0031] Table 1 Polyurethane combination polyether raw material component table

[0032]

[0033] Pour the polyurethane combination polyether described in Table 1 into the container according to the specified ratio, and use an electric stirrer to mix evenly to make component I;

[0034] Then pour component I and diphenylmethane diisocyanate PM200 into the container according to the weight ratio of 1:1.1, and then use an electric stirrer to stir at 25°C for 8 seconds at a stirring speed of 3000 rpm. Pour the liquid into the cavity of the prefabricated hollow fiberglass blade with a temperature of 35°C, close the injection port, and place it for 15 minutes to obtain the blade for wind power generation.

Embodiment 2

[0036] Prepare polyurethane combination polyether according to the composition in table 2, described polyurethane combination polyether comprises following raw material component by weight:

[0037] Table 2 Polyurethane combination polyether raw material component table

[0038]

[0039]

[0040] Pour the polyurethane combination polyether described in Table 2 into the container according to the specified ratio, and use an electric stirrer to mix evenly to make component I;

[0041] Then pour component I and diphenylmethane diisocyanate PM200 into the container according to the ratio of 1:1 by weight, and then use an electric stirrer to stir at 25°C for 8 seconds at a stirring speed of 4000 rpm to mix evenly Pour the liquid into the cavity of the prefabricated hollow aluminum alloy blade at a temperature of 30°C, close the injection port, and leave it for 15 minutes to obtain the blade for wind power generation.

Embodiment 3

[0043] Prepare polyurethane combination polyether according to the composition in table 3, described polyurethane combination polyether comprises following raw material component by weight:

[0044] Table 3 Polyurethane combination polyether raw material component list

[0045]

[0046]

[0047] Pour the polyurethane combination polyether described in Table 3 into the container according to the specified ratio, and use an electric stirrer to mix evenly to make component I;

[0048] Then pour component I and diphenylmethane diisocyanate PM200 into the container according to the ratio of 1:1 by weight, and then use an electric stirrer to stir at 25°C for 8 seconds at a stirring speed of 3500 rpm to mix well Pour the liquid into the cavity of the prefabricated hollow aluminum alloy blade at a temperature of 40°C, close the injection port, and leave it for 15 minutes to obtain the blade for wind power generation.

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Abstract

The invention discloses a polyether polyurethane combination, a paddle for wind power generation, a production method and application. The polyether polyurethane combination comprises raw materials with parts by weight: 40-60 parts of polyether polyol A, 35-55 parts of polyether polyol B, 5-15 parts of polyether polyol C, 1.0-3.0 parts of surface active agents, 0.1-0.3 part of catalyst A, 0.7-1.2 parts of catalyst B, 0.3-0.5 part of catalyst C, 0.8-1.5 parts of deionized water and 15-25 parts of foaming agents. The paddle for wind power generation has the characteristics of light quality and low cost and the like, particularly uses polyether polyurethane as internal fillers, the service life of the polyether polyurethane is above 20 years, is longer than the service life of glass fiber reinforced plastics and aluminum alloy of a shell and the like, the polyether polyurethane is high in strength, small in change rate of used size, reduces the possibility that the paddle is knocked by other objects and the paddle deforms when being used for long time, and is suitable to be used for long time.

Description

technical field [0001] The invention relates to the technical field of polyurethane foaming technology and the field of blade production for wind power generation, in particular to a polyurethane combined polyether, blade for wind power generation, production method and application. Background technique [0002] At present, the world's energy applications are dominated by fossil energy, but fossil energy faces two major problems. One is that fossil energy is non-renewable and will always be exhausted. With the continuous development of the world economy, the demand for energy is increasing; Second, the use of fossil energy has brought about global environmental problems, including the greenhouse effect, acid rain, and the destruction of the ozone layer, which have had a great impact on the living environment of human beings. [0003] After realizing the disadvantages of fossil energy, people are constantly looking for other new energy sources, such as solar energy, wind ener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/48C08G18/18C08G18/20C08J9/14
CPCC08G18/16C08G18/1808C08G18/2036C08G18/4804C08J9/144C08J2375/08
Inventor 贾雪芹于楠任丽冯文君
Owner SHANGHAI DONGDA POLYURETHANE