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產(chǎn)品詳請
| 品牌 | Qnity |
| 貨號 | |
| 用途 | 航空航天 |
| 牌號 | PI Kapton 150MT PLS |
| 型號 | Kapton 150MT PLS |
| 品名 | PI |
| 包裝規(guī)格 | 卷 |
| 外形尺寸 | 薄膜 |
| 廠家 | Qnity(Dupont 杜邦) |
| 是否進口 |
極高的多功能性和熱性能帶來了無限的潛力
從航天任務(wù)相機中的電路到下一代光伏電池,Kapton®聚酰亞胺薄膜正在推動非凡的新設(shè)計可能性真正實現(xiàn)。
對于 熱量和振動的應(yīng)用,設(shè)計師依賴Kapton®,因為它能夠在最惡劣的條件下保持獨特的機械性能組合。
Kapton®聚酰亞胺薄膜在45年來一直保持行業(yè)標準,在高性能、可靠性和耐用性方面保持著標準,具有獨特的電氣、熱能、化學(xué)和機械性能組合,能夠承受 溫度、振動及其他嚴苛環(huán)境。
Kapton is a polyimide film used in flexible printed circuits (flexible electronics) and space blankets, which are used on spacecraft, satellites, and various space instruments. Invented by the DuPont Corporation in the 1960s, Kapton remains stable across a wide range of temperatures, from 4 to 673 K (?269 to +400 °C). Kapton is used in electronics manufacturing and space applications, with x-ray equipment, and in 3D printing applications. Its favorable thermal properties and outgassing characteristics result in its regular use in cryogenic applications and in high vacuum environments.
History
Kapton was invented by DuPont in the 1960s. As of November 2025, Kapton is manufactured by Qnity Electronics, a spinoff of DuPont.
The name Kapton is a registered trademark of E. I. du Pont de Nemours and Company.
Chemistry and variants
Kapton synthesis is an example of the use of a dianhydride in step polymerization. The intermediate polymer, known as a poly(amic acid), is soluble because of strong hydrogen bonds to the polar solvents usually employed in the reaction. The ring closure is carried out at high temperatures of 470–570 K (200–300 °C).
The chemical name for Kapton K and HN is poly (4,4'-oxydiphenylene-pyromellitimide). It is produced from the condensation of pyromellitic dianhydride (PMDA) and 4,4'-oxydiphenylamine (ODA).
Kapton E is a mix of two dianhydrides, PMDA and biphenyltetracarboxylic acid dianhydride (BPDA), and two diamines, ODA and p-phenylenediamine (PPD). The BPDA component adds greater dimensional stability and flatness in flexible circuitry applications. Kapton E offers reduced coefficient of thermal expansion (CTE), reduced moisture absorption, and reduced coefficient of hygroscopic expansion (CHE) compared to Kapton H.
Characteristics
In isolation, Kapton remains stable across a wide range of temperatures, from 4 to 673 K (?269 to +400 °C).[5][6]
The thermal conductivity of Kapton at temperatures from 0.5 to 5 Kelvin is rather high for such low temperatures, κ = 4.638×10?3 T0.5678 W·m?1·K?1.
Kapton insulation ages poorly: an FAA study shows degradation in hot, humid environments[8] or in the presence of seawater. It was found to have very poor resistance to mechanical wear, mainly abrasion within cable harnesses due to aircraft movement. Many aircraft models have had to undergo extensive rewiring modifications—sometimes completely replacing all the Kapton-insulated wiring—because of short circuits caused by the faulty insulation. Kapton-wire degradation and chafing due to vibration and heat has been implicated in multiple crashes of both fixed wing and rotary wing aircraft, with loss of life. The New York Times, citing a NASA OIG document, reported in 2005 that Kapton-insulated cables on the Space Shuttle "tended to break down over time, causing short circuits and, potentially, fires." The STS-93 mission saw electrical shorts on Kapton insulation disable two engine controllers and nearly cause catastrophe.
Usage
Kapton tapes, three rolls of different widths
Electronics manufacturing
Kapton tape (yellow) used to insulate the leads of a battery cell in a bluetooth headset
Due to its large range of temperature stability and its electrical isolation ability, Kapton tape is usually used in electronic manufacturing as an insulation and protection layer on electrostatic-sensitive and fragile components. As it can sustain the temperature needed for a reflow soldering operation, its protection is available throughout the whole production process, and Kapton is often still present in the final consumer product.
Spacecraft
Aluminized Kapton thermal cover was used on the Ultra Heavy Cosmic Ray Experiment.
The descent stage of the Apollo Lunar Module, and the bottom of the ascent stage surrounding the ascent engine, were covered in blankets of aluminized Kapton foil to provide thermal insulation. During the return journey from the Moon, Apollo 11 astronaut Neil Armstrong commented that during the launch of the Lunar Module Eagle ascent stage, he could see "Kapton and other parts of the LM staging scattering all around the area for great distances."
Test unit of the James Webb Space Telescope sunshield, made of aluminized Kapton
The NASA Jet Propulsion Laboratory has considered Kapton as a good plastic support for solar sails because of its durability in the space environment.
NASA's New Horizons spacecraft used Kapton in an innovative "Thermos bottle" insulation design to keep the craft operating between 283 and 303 K (10 and 30 °C) throughout its more than nine-year, 5-terametre (33-astronomical-unit) journey to rendezvous with the dwarf planet Pluto on 14 July 2015. The main body is covered in lightweight, gold-colored, multilayered thermal insulation which holds in heat from operating electronics to keep the spacecraft warm. The thermal blanketing of 18 layers of Dacron mesh cloth sandwiched between aluminized Mylar and Kapton film also helped to protect the craft from micrometeorites.
The James Webb Space Telescope sunshield is made of five Kapton E sheets coated with aluminum and doped silicon to reflect heat away from the spacecraft body.
The crew aboard the International Space Station used Kapton tape to temporarily repair a slow leak in a Soyuz spacecraft attached to the Russian segment of the orbital complex in August 2018.[16] It was used again in October 2020 to temporarily seal a leak in the transfer chamber of the Zvezda Service Module of the ISS.
X-rays
Kapton is also commonly used as a material for windows used with all kinds of X-ray sources (synchrotron beam-lines and X-ray tubes) and X-ray detectors. Its high mechanical and thermal stability as well as high transmittance of X-rays make it the preferred material. It is also relatively insensitive to radiation damage.
3D printing
Kapton and ABS adhere to each other very well, which has led to widespread use of Kapton as a build surface for 3D printers. Kapton is laid down on a flat surface and the ABS is extruded onto the Kapton surface. The ABS part being printed will not detach from the build platform as it cools and shrinks, a common cause of print failure by warping of the part.A more durable alternative is to use a polyetherimide surface.
Researchers have devised a method to 3D-print polyimide material including Kapton. The polyamic acid precursor to Kapton is mixed with an acrylate cross linker and photoinitiator that can form a gel when exposed to ultraviolet light during 3D printing. Subsequent heating of the 3D printed part up to 400 °C removes the sacrificial crosslinks and imidizes the part forming Kapton with a 4D printed geometry.
Others
Kapton's relatively high thermal conductivity at very low temperatures, together with its good dielectric qualities and its availability as thin sheets, have made it a favorite material in cryogenics, as it provides electrical insulation at low thermal gradients.
Kapton is regularly used as an insulator in ultra-high-vacuum environments due to its low outgassing rate.
Kapton-insulated electrical wiring has been widely used in civil and military aircraft because it is lighter than other insulators and has good insulating and temperature characteristics.
從航天任務(wù)相機中的電路到下一代光伏電池,Kapton®聚酰亞胺薄膜正在推動非凡的新設(shè)計可能性真正實現(xiàn)。
對于 熱量和振動的應(yīng)用,設(shè)計師依賴Kapton®,因為它能夠在最惡劣的條件下保持獨特的機械性能組合。
Kapton®聚酰亞胺薄膜在45年來一直保持行業(yè)標準,在高性能、可靠性和耐用性方面保持著標準,具有獨特的電氣、熱能、化學(xué)和機械性能組合,能夠承受 溫度、振動及其他嚴苛環(huán)境。
使用杜邦™ Kapton® 進行成型
6. 成型模具
迄今為止，杜邦的薄膜成型測試均使用單模進行。
然而，經(jīng)驗表明，多級模具效率更高，效果更佳。
使用多級模具，可以顯著改善零件的復(fù)雜性和延伸率。
為獲得 效果，建議使用兩到三個深度遞增、零件輪廓逐漸清晰的模具。
多個模具還有助于控制薄膜的變薄和應(yīng)力。
階段： 個模具用于制作大致形狀；該形狀略大且輪廓模糊。 步是將所需的薄膜拉入工作區(qū)域。
由于零件尺寸較大，因此會拉入足夠的薄膜以緩解大部分材料應(yīng)力和變薄。
在此步驟中，尤其要注意褶皺（使用薄膜時始終存在褶皺的可能性）。如果在成型初期階段出現(xiàn)皺紋，則成品零件中也會存在皺紋。后續(xù)加工步驟無法去除這些皺紋。
階段： 個（也可能是 一個）模具步驟用于將薄膜成形到下一個階段。根據(jù)零件的最終深度和形狀，可能不需要額外的模具。
個和第三個模具應(yīng)將零件的清晰度提高 10% 到 30%。這是通過評估零件的復(fù)雜性和總深度來確定的。
第三階段： 階段的延續(xù)，用于更深、更復(fù)雜的零件。
三階段成型示例
測試表明，Kapton® 薄膜可以很好地復(fù)制模具形狀。杜邦測試中使用的模具是匹配的金屬模具。
下模為陰模且固定。上模為陽模，并連接到?jīng)_頭（間隙為薄膜厚度：±0.0002）。這種方法對淺深度零件非常有效。
對于深拉延零件，可能需要調(diào)整陰陽模的位置，以便進行推進。成形淺深度零件時，陰模位于底部效果很好；但對于深拉延零件，陰模位于頂部可能更合適。如果零件是真正的深拉延零件，則應(yīng)考慮使用陰陽?？缮炜s式模具。
由于模具的公差很小，成型零件的脫模有時會成為一個問題。這個問題與模具打開時產(chǎn)生的真空有關(guān)。真空除了會將零件固定到位外，還會導(dǎo)致起皺。一種解決方法是設(shè)置一個脫?？冢幠Ｉ系囊粋€小孔，允許空氣進入）。
這個孔應(yīng)該足夠小，以免在零件上留下痕跡。其他可能的解決方案包括噴砂處理、使用啞光模具，以及在模具上切割非常小的凹槽。
如果零件包含 90 度彎折，則需要進行半徑切割（最小半徑為 0.03125 英寸）以防止撕裂。成品零件的形狀和拉伸程度將決定該半徑是否足夠。如果需要更大的半徑，則應(yīng)根據(jù)實際情況確定。
注意：在某些情況下，可能需要輔助零件從模具中取出（通常在側(cè)壁為 90 度或拉伸程度較大時）。少量氣流通?？梢蕴峁椭?。
在為模具材料選擇金屬時，請記住成型操作的溫度范圍為從環(huán)境溫度到 750°F (400°C)。
應(yīng)選擇在此溫度范圍內(nèi)尺寸穩(wěn)定的金屬。杜邦的實驗室模具由鋁和工具鋼制成。
成型唇是底模上凸起的部分，用于幫助拉伸薄膜。該凸緣的高度應(yīng)至少為 60 密耳，至多為 75 密耳（適用于 3 密耳和 5 密耳的薄膜）。如果凸緣過短，則無法充分拉伸薄膜以消除皺紋（薄膜松弛會在受壓時產(chǎn)生皺紋）。如果凸緣過高，則薄膜在拉伸時會撕裂。
迄今為止，針對該凸緣直徑的合適尺寸，已進行的測試有限。對于淺拉伸零件，凸緣只需略大于零件本身（10 至 20 密耳）。對于更復(fù)雜的形狀，數(shù)據(jù)表明，直徑應(yīng)基于成品零件的復(fù)雜性和深度。無論如何，凸緣的直徑應(yīng)比壓板開口小 50 至 100 密耳。
上模上的臺階為壓板提供間隙。該臺階的直徑應(yīng)比壓板開口小 0.125 英寸。步長應(yīng)為 0.500 + 0.015652 英寸，高度為 -0 英寸（基于壓力墊厚度）。
Kapton is a polyimide film used in flexible printed circuits (flexible electronics) and space blankets, which are used on spacecraft, satellites, and various space instruments. Invented by the DuPont Corporation in the 1960s, Kapton remains stable across a wide range of temperatures, from 4 to 673 K (?269 to +400 °C). Kapton is used in electronics manufacturing and space applications, with x-ray equipment, and in 3D printing applications. Its favorable thermal properties and outgassing characteristics result in its regular use in cryogenic applications and in high vacuum environments.
History
Kapton was invented by DuPont in the 1960s. As of November 2025, Kapton is manufactured by Qnity Electronics, a spinoff of DuPont.
The name Kapton is a registered trademark of E. I. du Pont de Nemours and Company.
Chemistry and variants
Kapton synthesis is an example of the use of a dianhydride in step polymerization. The intermediate polymer, known as a poly(amic acid), is soluble because of strong hydrogen bonds to the polar solvents usually employed in the reaction. The ring closure is carried out at high temperatures of 470–570 K (200–300 °C).
The chemical name for Kapton K and HN is poly (4,4'-oxydiphenylene-pyromellitimide). It is produced from the condensation of pyromellitic dianhydride (PMDA) and 4,4'-oxydiphenylamine (ODA).
Kapton E is a mix of two dianhydrides, PMDA and biphenyltetracarboxylic acid dianhydride (BPDA), and two diamines, ODA and p-phenylenediamine (PPD). The BPDA component adds greater dimensional stability and flatness in flexible circuitry applications. Kapton E offers reduced coefficient of thermal expansion (CTE), reduced moisture absorption, and reduced coefficient of hygroscopic expansion (CHE) compared to Kapton H.
Characteristics
In isolation, Kapton remains stable across a wide range of temperatures, from 4 to 673 K (?269 to +400 °C).[5][6]
The thermal conductivity of Kapton at temperatures from 0.5 to 5 Kelvin is rather high for such low temperatures, κ = 4.638×10?3 T0.5678 W·m?1·K?1.
Kapton insulation ages poorly: an FAA study shows degradation in hot, humid environments[8] or in the presence of seawater. It was found to have very poor resistance to mechanical wear, mainly abrasion within cable harnesses due to aircraft movement. Many aircraft models have had to undergo extensive rewiring modifications—sometimes completely replacing all the Kapton-insulated wiring—because of short circuits caused by the faulty insulation. Kapton-wire degradation and chafing due to vibration and heat has been implicated in multiple crashes of both fixed wing and rotary wing aircraft, with loss of life. The New York Times, citing a NASA OIG document, reported in 2005 that Kapton-insulated cables on the Space Shuttle "tended to break down over time, causing short circuits and, potentially, fires." The STS-93 mission saw electrical shorts on Kapton insulation disable two engine controllers and nearly cause catastrophe.
Usage
Kapton tapes, three rolls of different widths
Electronics manufacturing
Kapton tape (yellow) used to insulate the leads of a battery cell in a bluetooth headset
Due to its large range of temperature stability and its electrical isolation ability, Kapton tape is usually used in electronic manufacturing as an insulation and protection layer on electrostatic-sensitive and fragile components. As it can sustain the temperature needed for a reflow soldering operation, its protection is available throughout the whole production process, and Kapton is often still present in the final consumer product.
Spacecraft
Aluminized Kapton thermal cover was used on the Ultra Heavy Cosmic Ray Experiment.
The descent stage of the Apollo Lunar Module, and the bottom of the ascent stage surrounding the ascent engine, were covered in blankets of aluminized Kapton foil to provide thermal insulation. During the return journey from the Moon, Apollo 11 astronaut Neil Armstrong commented that during the launch of the Lunar Module Eagle ascent stage, he could see "Kapton and other parts of the LM staging scattering all around the area for great distances."
Test unit of the James Webb Space Telescope sunshield, made of aluminized Kapton
The NASA Jet Propulsion Laboratory has considered Kapton as a good plastic support for solar sails because of its durability in the space environment.
NASA's New Horizons spacecraft used Kapton in an innovative "Thermos bottle" insulation design to keep the craft operating between 283 and 303 K (10 and 30 °C) throughout its more than nine-year, 5-terametre (33-astronomical-unit) journey to rendezvous with the dwarf planet Pluto on 14 July 2015. The main body is covered in lightweight, gold-colored, multilayered thermal insulation which holds in heat from operating electronics to keep the spacecraft warm. The thermal blanketing of 18 layers of Dacron mesh cloth sandwiched between aluminized Mylar and Kapton film also helped to protect the craft from micrometeorites.
The James Webb Space Telescope sunshield is made of five Kapton E sheets coated with aluminum and doped silicon to reflect heat away from the spacecraft body.
The crew aboard the International Space Station used Kapton tape to temporarily repair a slow leak in a Soyuz spacecraft attached to the Russian segment of the orbital complex in August 2018.[16] It was used again in October 2020 to temporarily seal a leak in the transfer chamber of the Zvezda Service Module of the ISS.
X-rays
Kapton is also commonly used as a material for windows used with all kinds of X-ray sources (synchrotron beam-lines and X-ray tubes) and X-ray detectors. Its high mechanical and thermal stability as well as high transmittance of X-rays make it the preferred material. It is also relatively insensitive to radiation damage.
3D printing
Kapton and ABS adhere to each other very well, which has led to widespread use of Kapton as a build surface for 3D printers. Kapton is laid down on a flat surface and the ABS is extruded onto the Kapton surface. The ABS part being printed will not detach from the build platform as it cools and shrinks, a common cause of print failure by warping of the part.A more durable alternative is to use a polyetherimide surface.
Researchers have devised a method to 3D-print polyimide material including Kapton. The polyamic acid precursor to Kapton is mixed with an acrylate cross linker and photoinitiator that can form a gel when exposed to ultraviolet light during 3D printing. Subsequent heating of the 3D printed part up to 400 °C removes the sacrificial crosslinks and imidizes the part forming Kapton with a 4D printed geometry.
Others
Kapton's relatively high thermal conductivity at very low temperatures, together with its good dielectric qualities and its availability as thin sheets, have made it a favorite material in cryogenics, as it provides electrical insulation at low thermal gradients.
Kapton is regularly used as an insulator in ultra-high-vacuum environments due to its low outgassing rate.
Kapton-insulated electrical wiring has been widely used in civil and military aircraft because it is lighter than other insulators and has good insulating and temperature characteristics.
