A flexible translucent waterproof and heat-insulating film and its preparation method

A translucent, waterproof technology, applied in surgery, diagnosis, medical science and other directions, can solve problems such as injury, achieve low cost, easy production and good protection effect.

Active Publication Date: 2020-05-12
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In surgery, the popularity of electrosurgical scalpel and ultrasonic scalpel has also brought some problems. The ultrasonic scalpel has a high temperature during operation, and there will be water vapor during the operation of the ultrasonic scalpel, which will condense and form high-temperature water droplets, causing damage to important nerves and other tissues. , which requires effective thermal insulation protection materials

Method used

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  • A flexible translucent waterproof and heat-insulating film and its preparation method
  • A flexible translucent waterproof and heat-insulating film and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Stir and mix 75 parts of polyether polyol 330, 25 parts of grafted polyether polyol 2045, 1.1 parts of silicone oil and 3.2 parts of water at high speed, then add 46 parts of TDI, stir evenly at high speed, and coat the mixture into a 0.35mm thick The film was naturally cured at room temperature for one day, and then cured in an oven at 100°C for one day to obtain a flexible and translucent film. Spread the film in the air and make it slightly concave in the middle. Drop 0.5mL of boiling water on the film. Tested by an infrared thermal imager, the highest temperature on the other side of the film is 46°C. The heat insulation film is used to protect the recurrent laryngeal nerve during the operation, and the temperature on the back of the heat insulation film is below 43°C when the ultrasonic knife or electric knife is used for routine operation at a distance of 2-3mm from the nerve.

Embodiment 2

[0026] Mix 75 parts of polyether polyol 330, 25 parts of grafted polyether polyol 2045, 0.03 parts of stannous octoate, 10 parts of silicone oil and 2.4 parts of water at high speed and mix well, then add 38.3 parts of TDI, stir evenly at high speed, and mix the mixture It is coated into a film with a thickness of 0.35mm, cured naturally at room temperature for one day, and then cured in an oven at 100°C for one day to obtain a flexible and translucent film. Spread the film in the air and make it slightly concave in the middle, drop 0.5mL of boiling water on the film, and test with an infrared thermal imager, the highest temperature on the other side of the film is 43°C. The heat insulation film is used to protect the recurrent laryngeal nerve during the operation, and the temperature on the back of the heat insulation film is below 40°C when the ultrasonic knife or electric knife is used for routine operation at a distance of 2-3mm from the nerve. By changing the amount of si...

Embodiment 3

[0028] Mix 75 parts of polyether polyol 330, 25 parts of grafted polyether polyol 2045, 0.03 parts of stannous octoate, 10 parts of silicone oil, 1 part of 3-fluoropropanol and 2.4 parts of water at high speed, and then add 39.4 parts of TDI, Stir evenly at high speed, coat the mixture into a film with a thickness of 0.35mm, let it cure naturally at room temperature for one day, and then cure it in an oven at 100°C for one day to obtain a flexible and translucent film. Spread the film in the air, and make the middle slightly concave, drop 0.5mL of boiling water on the film, and test with an infrared thermal imager, the highest temperature on the other side of the film is 41°C. The heat insulation film is used to protect the recurrent laryngeal nerve during the operation, and the temperature on the back of the heat insulation film is below 40°C when the ultrasonic knife or electric knife is used for routine operation at a distance of 2-3mm from the nerve. By adding a hydrophobi...

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Abstract

The invention discloses a flexible semitransparent waterproof heat insulating film and a preparation method thereof. The flexible semitransparent waterproof heat insulating film is prepared from, by weight, 100 parts of polyhydric alcohols, 0-50 parts of polyethylene glycol, 0-1 part of a tin catalyst, 0-1 part of an amine catalyst, 0.01-20 parts of a foaming agent, 0.1-40 parts of silicon oil, 0-10 parts of a cross linking agent, 0-10 parts of a water repellent agent, 0-50 parts of a phase change agent and 5-100 parts of isocyanate. The flexible semitransparent waterproof heat insulating filmcan be used for thermal protection in the medical operation process, such as recurrent laryngeal nerve is protected under the heat insulating film with the thickness being 0.35 mm, when an ultrasoundknife or an electric knife is adopted 2-3 mm away from the film for operation, the temperature of the back face of the heat insulating film can be lowered to the temperature of 40 DEG C or below. Thefilm is good in heat insulating effect and has the advantages of being safe, free of toxin, low in weight, capable of being observed, low in cost and easy to manufacture and produce.

Description

technical field [0001] The invention belongs to the field of heat insulation materials, and in particular relates to a flexible translucent waterproof and heat insulation film and a preparation method thereof. Background technique [0002] In the medical field, heat insulation materials are widely used. For example, some live bacteria need to be stored at low temperature, some medicines cannot be heated, and skin burns need to be prevented during warm acupuncture and moxibustion. In surgery, the popularization of electric knife and ultrasonic scalpel has also brought some problems. The ultrasonic scalpel has a high temperature during operation, and there will be water vapor during the operation of the ultrasonic scalpel, which will condense and form high-temperature water droplets, causing damage to important nerves and other tissues. , which requires effective thermal insulation protection materials. In view of the fact that the doctor needs to observe the patient's positi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/63C08G18/48C08G18/28C08K5/098C08J5/18A61B90/00C08G101/00
CPCA61B90/04A61B2090/0427C08G18/2885C08G18/4072C08G18/48C08G18/4804C08G18/4833C08G18/632C08J5/18C08K5/098C08G2110/0083
Inventor 马超马小鹏吴德林宋磊胡源
Owner UNIV OF SCI & TECH OF CHINA
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