Teflon insulating self-adhesive tape and application method thereof
A technology of polytetrafluoroethylene and self-adhesive tape, applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problems of performance degradation, aging of rubber and adhesives, loss of insulation effect, etc., and achieve good aging resistance, Reliable bonding, superior comprehensive performance and stable effect
Inactive Publication Date: 2013-09-04
肇庆市大旺台旺门窗厂
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- Description
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Problems solved by technology
During the use of these self-adhesive tapes, due to the combined effects of internal and external factors (such as heat, oxygen, ozone, metal ions, ionizing radiation, light, mechanical force, etc.), the rubber and adhesive will age and their performance will gradually decline, so that Loss of insulating effect
Method used
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[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments!
[0025] A method for making a polytetrafluoroethylene insulating self-adhesive tape, which is made by comprising the following steps:
[0026] 1. Production of color masterbatch of polytetrafluoroethylene dispersed resin
[0027] 1. Mix the pigment and absolute ethanol in a weight ratio of 1:0.8-1.2, then grind continuously for 20-24 hours, take out, dry at 100-150°C and sieve, the sieve is 300-500 mesh. Wherein the preferred weight ratio of pigment to absolute ethanol is 1:1. The mixed grinding can be placed in a corundum ball mill, and the mixed material should not exceed one-third of the volume of the container, otherwise the grinding effect will be affected. Among them, the index requirements of the pigment: (1) High heat resistance, stable performance of the color body at 400°C, bright color and no fading;
[0028] (2) It requires high...
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Abstract
The invention discloses a teflon insulating self-adhesive tape and a application method thereof. The preparation method of the teflon insulating self-adhesive tape comprises the following steps: preparing teflon dispersion resin color masterbatch, and proportionally mixing the teflon dispersion resin color masterbatch and teflon dispersion resin. The teflon insulating self-adhesive tape has the beneficial effects that the self-adhesive tape does not contain any adhesive, and has excellent and stable comprehensive properties; the limited oxygen index of the self-adhesive tape is more than 95, and thus the self-adhesive tape has incombustibility; the volume resistance is greater than or equal to 1*1017 ohm.cm, and thus the self-adhesive tape has favorable insulating property; the water absorptivity is less than 0.01%, and thus the self-adhesive tape has favorable humidity resistance; the self-adhesive tape can be used at -65-250 DEG C for a long time; and the self-adhesive tape has favorable pressure resistance, strong acid and strong base resistance, oxidation resistance and ageing resistance, is applicable to outdoor extreme environment, and is an ideal insulating material. When the self-adhesive tape is stretched for definite multiples at ordinary temperature, the tape can have self-adhesive and adhesive force, and the adhesion at the interlayer and the port is reliable.
Description
technical field [0001] The invention relates to a self-adhesive tape used as an electrical material, in particular to a polytetrafluoroethylene insulating self-adhesive tape and a use method thereof. Background technique [0002] At present, the self-adhesive tapes sold on the market are mainly made of rubber as a base, dip-coated with an adhesive with self-adhesive properties or processed by adding an adhesive to the formula. During the use of these self-adhesive tapes, due to the combined effects of internal and external factors (such as heat, oxygen, ozone, metal ions, ionizing radiation, light, mechanical force, etc.), the rubber and adhesive will age and their performance will gradually decline, so that Finally, the insulating effect is lost. Contents of the invention [0003] The purpose of the present invention is to address the above-mentioned deficiencies in the existing self-adhesive tapes, give full play to the characteristics of polytetrafluoroethylene, provid...
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IPC IPC(8): C09J7/00C09J127/18C09J9/00
Inventor 曾燕飞
Owner 肇庆市大旺台旺门窗厂