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A kind of ultrasonic heat-sealing film for preparing aircraft inner wall insulation sealing bag and preparation method thereof

An insulating sealing and thin film technology, which is applied in the field of ultrasonic heat sealing film and its preparation, can solve the problems of not being able to withstand extrusion, pressure, falling, and poor tensile resistance, and achieve stability, high chemical stability, and excellent mechanical properties. Effect

Active Publication Date: 2011-12-07
太仓斯迪克新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Wang Jingchang disclosed a kind of aluminum foil reinforced paper with mesh reinforcement in the Chinese utility model patent with application number 91213303.1, which belongs to a kind of outer packaging paper with strong heat insulation, heat preservation and tensile resistance. As a result, the currently used paper for aluminum packaging bags has poor tensile strength and cannot withstand extrusion, pressure, and falling during long-distance transportation.

Method used

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  • A kind of ultrasonic heat-sealing film for preparing aircraft inner wall insulation sealing bag and preparation method thereof
  • A kind of ultrasonic heat-sealing film for preparing aircraft inner wall insulation sealing bag and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0060] Example 1: An ultrasonic heat-sealing film and its preparation method for preparing insulating and sealing bags on the inner wall of aircraft

[0061] The processing device adopted in the present invention is as attached figure 1 shown. Install the polyimide film on the film substrate unwinding roller 1, the first power traction rail 2 pulls the polyimide film from the film substrate unwinding roller 1 at the speed set by the machine, and passes through the adhesive Coating device 3, the prepared ultrasonic heat-sealing polyurethane adhesive is coated on one surface of the polyimide film. The reinforced fiber web is installed on the reinforced fiber web unwinding roller 4, and the reinforced fiber web falls on the polyimide film with the ultrasonic heat-bonded polyurethane adhesive by its own weight, and is attached to the polyimide film after being wetted by the ultrasonic heat-bonded polyurethane adhesive. imide film. The polyimide film loaded with ultrasonic heat-...

Embodiment 2

[0064] Example 2: An ultrasonic heat-sealing film for preparing insulating and sealing bags on the inner wall of an aircraft and its preparation method

[0065] See attached figure 1 As shown, a polyimide film with a width of one meter and a thickness of 1 micron is installed on the film substrate unwinding roller 1, and the first power traction rail 2 will polyimide film from the film substrate unwinding roller 1 according to Pull out at a speed of 30 m / min. The coating head slit of the cast coater (adhesive coating device 3) was set to 40 microns. The solid content of the prepared ultrasonic heat-sealing polyurethane adhesive is 30%, the viscosity is 500 cps, and it flows into the trough of the coating head of the casting coating machine through the feed pump, and is coated on the polyimide film superior. The reinforced fiber web has a specific gravity of 0.011 ounces / cubic feet and is installed on the reinforced fiber web unwinding roller 4. The reinforced fiber web fall...

Embodiment 3

[0067] Example 3: An ultrasonic heat-sealing film and its preparation method for preparing insulating and sealing bags on the inner wall of aircraft

[0068] See attached figure 1 As shown, a polyimide film with a width of one meter and a thickness of 1 micron is installed on the film substrate unwinding roller 1, and the first power traction rail 2 will polyimide film from the film substrate unwinding roller 1 according to Pull out at a speed of 30 m / min. The mesh track of the texture coating machine (adhesive coating device 3) is 50 mesh, and the solid content of the prepared ultrasonic heat-sealing polyurethane adhesive is 50%, and the viscosity is 1200 cps, which is coated on the polyimide film . The reinforced fiber web has a specific gravity of 0.017 ounces / cubic feet and is installed on the reinforced fiber web unwinding roller 4. The reinforced fiber web falls on the polyimide film with ultrasonic heat-bonded polyurethane adhesive by its own weight, and is ultrasonic...

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Abstract

The invention discloses an ultrasonic sealing film for preparing thermal-isolating, soundproof, fire-retardant, moistureproof, shock-resistant and high-strength insulating sealable bags on the inside walls of aircrafts, and a preparation method thereof. According to the ultrasonic sealing film for preparing insulating sealable bags and the preparation method thereof, the thickness of a substrate of the film is 0.008-0.05 mm, the coating weight of an ultrasonic sealing polyurethane adhesive is 5-35g / m<2>, a reinforcing fiber web is composed of polyamide fibers by way of weaving, and the proportion of the polyamide fibers is 0.006-0.035 ounces / cubic Zhang, the adhesive coating mode refers to one of comma blade coating, bar coating, web coating, extrusion coating and slot coating, the drying temperature is 80-110 DEG C, and the coating speed is 15-55 m / min. The prepared ultrasonic sealing film is subjected to press fit by using an ultrasonic seam-sealed machine. Therefore, the sealable bag (in a shell of an aircraft) prepared by press fit, and can meet the requirements of American FAA (federal aviation administration) after being filled with glass fiber felts; and the peel strength of the press-fitted sealable bags is more than 400g / cm<2>400.

Description

technical field [0001] The invention relates to an ultrasonic heat-sealing film and a preparation method thereof, in particular to an ultrasonic heat-sealing film used for preparing insulating and sealing bags on the inner wall of an aircraft and a preparation method thereof. Background technique [0002] Although the global commercial aircraft industry has been affected by the current economic downturn, the long-term outlook of the global commercial aircraft industry remains positive. For the industry's most important product - narrow-body and wide-body aircraft for passenger and cargo transportation, that is, large commercial aircraft words, especially so. [0003] Forecasts for the next 20 years indicate that fare passenger miles, the driver of the global commercial aircraft industry, will grow by approximately 5% per year, which is twice the expected growth rate for the entire global economy. Orders for commercial aircraft in 2006 and 2007 also reached a new high of 4,0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/34B32B7/12B32B37/06B32B37/12
Inventor 金闯杨晓明
Owner 太仓斯迪克新材料科技有限公司
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