Breathable sealant, preparation method thereof, support and camera module
A sealant and curing agent technology, applied in adhesives, image communications, electrical components, etc., can solve problems such as camera module malfunction and filter damage, and achieve the effect of avoiding malfunction and balancing internal and external pressure differences
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0044] Based on the above-mentioned embodiments of the sealant, in other optional embodiments, a method for preparing the sealant is also provided, including:
[0045] Provide fluorine-containing particle compounds, curing agents and silicone resins;
[0046] The silicone resin, the fluorine-containing particle compound and the curing agent are mixed to obtain the sealant.
[0047] If the sealant is also added with additives, the corresponding method is:
[0048] Provide fluorine-containing particle compounds, curing agents, silicone resins and additives;
[0049] The silicone resin, the fluorine-containing particle compound and the curing agent are mixed to obtain the sealant.
[0050] When preparing the sealant, prepare the above-mentioned components in corresponding parts by mass according to actual needs, and mix them uniformly to obtain the required sealant. The sealant can be stored in a rubber hose or other storage container. At this time, the sealant is not in conta...
Embodiment 1
[0053] Take 80 parts by mass of polymethyl silicone resin, 10 parts by mass of polytetrafluoroethylene, 5 parts by mass of organotin curing agent and 5 parts by mass of silane coupling agent, stir evenly to obtain a sealant, and put the sealant into In the vent hole of the camera module for testing, and then cured at room temperature.
[0054] After the curing is completed, take the test camera module to conduct the shear strength test to characterize the adhesive strength of the sealant, the red ink penetration test to characterize the waterproof performance of the glue, and the pressure balance test to characterize the air permeability of the glue; the test results are shown in Table 1 shown.
[0055] Among them, the red ink penetration test is to infiltrate a certain concentration of red ink above the escape hole that has been blocked by the sealant. After a specified period of time, it is detected whether there is red ink penetration in the components under the glue. If th...
Embodiment 2
[0058] Get 10 parts by mass of polymethyl silicone resin, 80 parts by mass of polychlorotrifluoroethylene, 5 parts by mass of organotin curing agent and 5 parts by mass of silane coupling agent, stir evenly to obtain a sealant, and apply the sealant into the air vent of the camera module for testing, and then cured at room temperature.
[0059] After the curing is completed, take the test camera module to conduct the shear strength test to characterize the adhesive strength of the sealant, the red ink penetration test to characterize the waterproof performance of the glue, and the pressure balance test to characterize the air permeability of the glue; all test parameters and The parameter environment is consistent with the first embodiment. The test results are shown in Table 1.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More