Messages : 10
Sujets : 10
Inscription : Nov 2022
Réputation :
0
Polyimide film, also called polyimide film, is a kind of thin-film insulating material. It is mainly made of pyromellitic dianhydride (PMDA) and diaminodiphenyl ether (DDE) in a strong polar solvent through polycondensation and casting to form a film and then imidization. Polyimide film generally appears yellow, but now it can be made into various colors, such as amber polyimide film, black polyimide film, red polyimide film, green polyimide film and transparent polyimide film.
Polyimide film functions
Polyimide film has good functions, such as high temperature resistance, electrical insulation, adhesion, corrosion resistance, medium resistance and many other functions, so it is widely used. It can be used in space technology, motor insulation, aerospace, aviation, mobile phones, computers, smelting, and other industries.
The general Polyimide film will appear yellow. The measured optical density value measured with a densitometer is 1.39-1.45. Since the Polyimide film is widely used in various industries, different industries will have different requirements for the optical density values as well as the light transmittance.
Factors affect Polyimide film performance
The visible light transmittance and optical density value of the Polyimide film used on the mobile phone display screen will be directly affected by the heat resistance. The light transmittance and optical density will also directly affect the effect of the display screen. Compared with the general aromatic Polyimide film PI-A, the heat resistance and mechanical functions of the fluorine-containing film are slightly lower. But the light transmittance at 450 nm is increased by 65% and the solubility and dielectric functions are also greatly improved. The thermal function and dielectric function of the film PI-C prepared by the chemical effect dehydration cyclization are slightly lower than that of the film PI-T prepared by the thermal effect. However, it has better light transmittance, solubility and mechanical functions.
How to measure visible light transmittance of Polyimide films?
Measuring the light transmittance and optical density values of Polyimide films is necessary. It is recommended to use Linshang LS117 densitometer for the measurement of Polyimide film light transmittance. LS117 densitometer use diffuse transmission principle, which is very suitable for measuring frosted materials, opalescent and translucent materials. The instrument conforms to the CIE photopic function standard.
Polyimide materials are lightweight, flexible, resistant to heat and chemicals. Therefore, they are used in the electronics industry for flexible cables and as an insulating film on magnet wire. For example, in a laptop computer, the cable that connects the main logic board to the display (which must flex every time the laptop is opened or closed) is often a polyimide base with copper conductors. Examples of polyimide films include Apical, Kapton, UPILEX, VTEC PI, Norton TH and Kaptrex.
An additional use of polyimide resin is as an insulating and passivation layer in the manufacture of Integrated circuits and MEMS chips. The polyimide layers have good mechanical elongation and tensile strength, which also helps the adhesion between the polyimide layers or between polyimide layer and deposited metal layer. The minimum interaction between the gold film and the polyimide film, coupled with high temperature stability of the polyimide film, results in a system that provides reliable insulation when subjected to various types of environmental stresses. Polyimide is also used as a substrate for cellphone antennas.
However, Polyimide Film has many other different types like biaxial oriented polyimide film, polyimide F46 film, polyimide tape, PTFE film, etc.
Messages : 10
Sujets : 10
Inscription : Nov 2022
Réputation :
0
Polyimide film, also called polyimide film, is a kind of thin-film insulating material. It is mainly made of pyromellitic dianhydride (PMDA) and diaminodiphenyl ether (DDE) in a strong polar solvent through polycondensation and casting to form a film and then imidization. Polyimide film generally appears yellow, but now it can be made into various colors, such as amber polyimide film, black polyimide film, red polyimide film, green polyimide film and transparent polyimide film.
Polyimide film functions
Polyimide film has good functions, such as high temperature resistance, electrical insulation, adhesion, corrosion resistance, medium resistance and many other functions, so it is widely used. It can be used in space technology, motor insulation, aerospace, aviation, mobile phones, computers, smelting, and other industries.
The general Polyimide film will appear yellow. The measured optical density value measured with a densitometer is 1.39-1.45. Since the Polyimide film is widely used in various industries, different industries will have different requirements for the optical density values as well as the light transmittance.
Factors affect Polyimide film performance
The visible light transmittance and optical density value of the Polyimide film used on the mobile phone display screen will be directly affected by the heat resistance. The light transmittance and optical density will also directly affect the effect of the display screen. Compared with the general aromatic Polyimide film PI-A, the heat resistance and mechanical functions of the fluorine-containing film are slightly lower. But the light transmittance at 450 nm is increased by 65% and the solubility and dielectric functions are also greatly improved. The thermal function and dielectric function of the film PI-C prepared by the chemical effect dehydration cyclization are slightly lower than that of the film PI-T prepared by the thermal effect. However, it has better light transmittance, solubility and mechanical functions.
How to measure visible light transmittance of Polyimide films?
Measuring the light transmittance and optical density values of Polyimide films is necessary. It is recommended to use Linshang LS117 densitometer for the measurement of Polyimide film light transmittance. LS117 densitometer use diffuse transmission principle, which is very suitable for measuring frosted materials, opalescent and translucent materials. The instrument conforms to the CIE photopic function standard.
Polyimide materials are lightweight, flexible, resistant to heat and chemicals. Therefore, they are used in the electronics industry for flexible cables and as an insulating film on magnet wire. For example, in a laptop computer, the cable that connects the main logic board to the display (which must flex every time the laptop is opened or closed) is often a polyimide base with copper conductors. Examples of polyimide films include Apical, Kapton, UPILEX, VTEC PI, Norton TH and Kaptrex.
An additional use of polyimide resin is as an insulating and passivation layer in the manufacture of Integrated circuits and MEMS chips. The polyimide layers have good mechanical elongation and tensile strength, which also helps the adhesion between the polyimide layers or between polyimide layer and deposited metal layer. The minimum interaction between the gold film and the polyimide film, coupled with high temperature stability of the polyimide film, results in a system that provides reliable insulation when subjected to various types of environmental stresses. Polyimide is also used as a substrate for cellphone antennas.
However, Polyimide Film has many other different types like biaxial oriented polyimide film, polyimide F46 film, polyimide tape, PTFE film, etc.
Messages : 3,353
Sujets : 0
Inscription : Jan 2023
Réputation :
2
To the man asking about palm jumeirah tourist attractions, movenpick hotel and apartments dubai, buy house dubai palm, silverene tower dubai marina, dream industrial, star metro deira hotel dubai, I highly suggest this full report about buy a property in dubai link or dubai cheap flats for sale, al safa apartments for rent, pearl executive hotel dubai, jumeirah beach to palm jumeirah, buy 3 bedroom apartment in dubai, business bay dubai rent, on top of this description on real estate investment tips on top of the pointe palm jumeirah dubai, yield on cost real estate, cheap hotel apartments in al qusais dubai, 2 seasons dubai, cost of house in palm jumeirah, adagio hotel palm jumeirah, on top of this cool buy villa in dubai link which is also great. Also, have a look at this great palm jumeirah info alongside all global realty capital, 1 bedroom for sale in dubai, hotel studio m arabian plaza dubai, buy cheap property in dubai, sls apartments dubai, properties for sale in dubai hills estate, on top of this made my day on apartment in dubai blog and don't forget villa for sale in dubai land, popular reits, abidos al barsha, radisson dubai palm, marriott executive apartment dubai creek, vnq reit, as well as look at this for real estate investment advice which is also worth a look. I also recommend this check this out for palm jumeirah blog on top of waldorf astoria dubai palm jumeirah tripadvisor, duplex for sale dubai, 1 bed apartment for sale in dubai, home investors near me, fresx, akas inn hotel apartment dubai united arab emirates, not to mention this click this link for apartment in dubai site as well as 2 bhk for rent in al nahda dubai, radisson beach resort palm jumeirah 4, horizon hotel dubai, aayah residence jvc, seven residences palm jumeirah, the view at palm jumeirah, and don't forget excellent real estate investment url on top of al salam grand hotel apartments dubai, the radisson blu residence dubai marina, business bay apartments, dubai housing, house for rent in dubai monthly, owning 100 rental properties, which is also great. Finally, have a look at this read more here about buy villa in dubai site with palm jumeirah house price, dubai house rent per month, 1 bhk flat for rent in al nahda dubai, best penthouses in dubai, hotel sofitel palm jumeirah dubai, beach by five palm jumeirah, for good measure. Check more @ Recommended Real Estate Investment In Dubai Tips 626_756
Messages : 3,353
Sujets : 0
Inscription : Jan 2023
Réputation :
2
To the man asking about palm jumeirah tourist attractions, movenpick hotel and apartments dubai, buy house dubai palm, silverene tower dubai marina, dream industrial, star metro deira hotel dubai, I highly suggest this full report about buy a property in dubai link or dubai cheap flats for sale, al safa apartments for rent, pearl executive hotel dubai, jumeirah beach to palm jumeirah, buy 3 bedroom apartment in dubai, business bay dubai rent, on top of this description on real estate investment tips on top of the pointe palm jumeirah dubai, yield on cost real estate, cheap hotel apartments in al qusais dubai, 2 seasons dubai, cost of house in palm jumeirah, adagio hotel palm jumeirah, on top of this cool buy villa in dubai link which is also great. Also, have a look at this great palm jumeirah info alongside all global realty capital, 1 bedroom for sale in dubai, hotel studio m arabian plaza dubai, buy cheap property in dubai, sls apartments dubai, properties for sale in dubai hills estate, on top of this made my day on apartment in dubai blog and don't forget villa for sale in dubai land, popular reits, abidos al barsha, radisson dubai palm, marriott executive apartment dubai creek, vnq reit, as well as look at this for real estate investment advice which is also worth a look. I also recommend this check this out for palm jumeirah blog on top of waldorf astoria dubai palm jumeirah tripadvisor, duplex for sale dubai, 1 bed apartment for sale in dubai, home investors near me, fresx, akas inn hotel apartment dubai united arab emirates, not to mention this click this link for apartment in dubai site as well as 2 bhk for rent in al nahda dubai, radisson beach resort palm jumeirah 4, horizon hotel dubai, aayah residence jvc, seven residences palm jumeirah, the view at palm jumeirah, and don't forget excellent real estate investment url on top of al salam grand hotel apartments dubai, the radisson blu residence dubai marina, business bay apartments, dubai housing, house for rent in dubai monthly, owning 100 rental properties, which is also great. Finally, have a look at this read more here about buy villa in dubai site with palm jumeirah house price, dubai house rent per month, 1 bhk flat for rent in al nahda dubai, best penthouses in dubai, hotel sofitel palm jumeirah dubai, beach by five palm jumeirah, for good measure. Check more @ Recommended Real Estate Investment In Dubai Tips 626_756
Messages : 3,353
Sujets : 0
Inscription : Jan 2023
Réputation :
2
To the lady asking about madison merino base layer, first lite merino wool base layer, womens smartwool base layer 250, smartwool merino 250 base, women's wool base layer top, best merino wool base layer reddit, I highly recommend this funny post on merino wool base layers tips or smartwool nts mid 250 crew, best merino wool baselayers, merino wool 400 base layer, wool cycling base layer, merino wool base layer womens plus size, ibex wool base layer, and don't forget this more info on merino wool base layers details as well as ultralight merino wool base layer, merino icebreaker base layer, best woolen thermal wear, montbell merino wool base layer, icebreaker merino bodyfit 200 base layer, washing smartwool base layer, and don't forget this great merino wool base layers tips which is also great. Also, have a look at this read full article on merino wool base layers details on top of minus 33 womens base layer, smartwool underlayer, smartwool merino 150 long sleeve, merino wool base layer mens top, buy merino wool base layer, meriwool merino wool, alongside all this watch this video on merino wool base layers link on top of icebreaker mens merino base layer, merino wool base layer snowboarding, eddie bauer merino base layer, smart wool long johns, mens merino thermals, merino icebreaker base layer, alongside all he has a good point for merino wool base layers site which is also worth a look. I also recommend this excellent merino wool base layers blog not to mention intraknit merino 250 thermal bottom, point6 base layer, affordable merino wool base layer, merino wool base layer long sleeve, icebreaker womens thermals, wool layering shirt, alongside all this read what he said on merino wool base layers url as well as smartwool men 250, north face merino wool base layer, best merino wool base layer cycling, reddit merino wool base layer, merino wool mid layer hunting, icebreaker baselayers, and don't forget top rated merino wool base layers url and don't forget best merino wool base layers for hunting, smartwool thermal top, best hunting merino wool base layer, merino wool base layer motorcycle, women's merino 200 oasis long sleeve crewe thermal top, merino turtleneck base layer, which is also great. Finally, have a look at this that guy for merino wool base layers blog with buy merino thermals, icebreaker 260 base layer, merino wool mens thermal underwear, heavy weight merino wool base layer, icebreaker base, merino ski base layer, for good measure. Check more @ Best Buying Villas In Dubai Info ec788cf
Messages : 3,353
Sujets : 0
Inscription : Jan 2023
Réputation :
2
To the lady asking about madison merino base layer, first lite merino wool base layer, womens smartwool base layer 250, smartwool merino 250 base, women's wool base layer top, best merino wool base layer reddit, I highly recommend this funny post on merino wool base layers tips or smartwool nts mid 250 crew, best merino wool baselayers, merino wool 400 base layer, wool cycling base layer, merino wool base layer womens plus size, ibex wool base layer, and don't forget this more info on merino wool base layers details as well as ultralight merino wool base layer, merino icebreaker base layer, best woolen thermal wear, montbell merino wool base layer, icebreaker merino bodyfit 200 base layer, washing smartwool base layer, and don't forget this great merino wool base layers tips which is also great. Also, have a look at this read full article on merino wool base layers details on top of minus 33 womens base layer, smartwool underlayer, smartwool merino 150 long sleeve, merino wool base layer mens top, buy merino wool base layer, meriwool merino wool, alongside all this watch this video on merino wool base layers link on top of icebreaker mens merino base layer, merino wool base layer snowboarding, eddie bauer merino base layer, smart wool long johns, mens merino thermals, merino icebreaker base layer, alongside all he has a good point for merino wool base layers site which is also worth a look. I also recommend this excellent merino wool base layers blog not to mention intraknit merino 250 thermal bottom, point6 base layer, affordable merino wool base layer, merino wool base layer long sleeve, icebreaker womens thermals, wool layering shirt, alongside all this read what he said on merino wool base layers url as well as smartwool men 250, north face merino wool base layer, best merino wool base layer cycling, reddit merino wool base layer, merino wool mid layer hunting, icebreaker baselayers, and don't forget top rated merino wool base layers url and don't forget best merino wool base layers for hunting, smartwool thermal top, best hunting merino wool base layer, merino wool base layer motorcycle, women's merino 200 oasis long sleeve crewe thermal top, merino turtleneck base layer, which is also great. Finally, have a look at this that guy for merino wool base layers blog with buy merino thermals, icebreaker 260 base layer, merino wool mens thermal underwear, heavy weight merino wool base layer, icebreaker base, merino ski base layer, for good measure. Check more @ Best Buying Villas In Dubai Info ec788cf
|
