Internal explosion-proof membrane material and its preparation process
A technology of explosion-proof film and methyl styrene, which is applied in the field of internal explosion-proof film materials and its preparation technology, can solve the problems of easy aging of PET film, reduction of explosion-proof effect, embrittlement of PET film, etc.
Active Publication Date: 2022-04-22
SHENZHEN XINFUYI INDAL
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Problems solved by technology
However, the heat radiation generated during the use of electronic equipment can be transmitted from the screen to the PET film, making the PET film prone to aging and causing the PET film to become brittle, thereby reducing the explosion-proof effect
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1-6
[0036] Take by weighing the PET resin, glycidyl methacrylate, tributyl phosphate, sodium carbonate, 1-3-dimethylaminopropyl-3-ethylcarbodiimide hydrochloride of corresponding weight parts according to the proportioning of table 2 Put the salt, filler and anti-aging composition into a banbury mixer (model ZG-0.05L-35L), and banbury at 265°C for 20 minutes to make a mixture, cool and crush it, and put it into an extruder to extrude out, cooling and cutting to obtain the masterbatch.
Embodiment 7
[0038] The difference from Example 1 is that the added filler is transparent powder.
Embodiment 8
[0040] The difference from Example 1 is that the added filler is selected from methyl styrene oligomers.
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Abstract
The application relates to the technical field of optical protective films, and specifically discloses an internal explosion-proof film material and a preparation process thereof. The inner explosion-proof membrane material includes the following raw materials by weight: 45-60 parts of polyethylene terephthalate, 15-30 parts of glycidyl methacrylate, 1-3 parts of tributyl phosphate, 0.2-0.4 parts of Nucleating agent, 5-8 parts of filler, 0.2-0.4 part of activator and 4-9 parts of anti-aging composition, anti-aging composition is a combination of glass fiber and linoleic acid, and the weight ratio of glass fiber and linoleic acid is (1‑2): (5‑8), the activator is EDC.HCL; the preparation method is: Weigh the corresponding weight parts of the raw materials for banbury blending at 240‑255 ° C, and extrude from the extruder After cooling, cut the material to obtain the masterbatch. The inner explosion-proof membrane of the present application has the advantage of being relatively less prone to aging.
Description
technical field [0001] This application relates to the technical field of optical protection film, more specifically, it relates to an inner explosion-proof film material and its preparation process. Background technique [0002] The screen of an electronic device is often the most vulnerable part of the entire fuselage. Therefore, it is necessary to protect the screen of the electronic device. The screen protection is usually pasted with a glass protective film. A single glass protective film is easily broken and damaged after being hit. Splash, easy to cause damage to the user. Therefore, the related technology uses a PET film on the inner side of the glass protective film as an explosion-proof film, and through the adhesiveness of the adhesive layer and the cushioning performance of the explosion-proof film, even if the glass protective film is broken, there will be no fragments splashing. . However, the heat radiation generated during the use of electronic equipment ca...
Claims
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IPC IPC(8): C08L67/02C08K7/14C08K5/09C08K5/1515C08J5/18
CPCC08J5/18C08J2367/02C08K7/14C08K5/09C08K5/1515
Inventor 蔡瑾
Owner SHENZHEN XINFUYI INDAL
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