Nylon film composite material for outer film of lithium-ion polymer battery
A technology of composite materials and nylon films, which is applied in the field of composite nylon materials, can solve problems such as complex relationships, loss of shape retention, and low impact strength, and achieve the effects of improving water resistance, compatibility, and compatibility
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Embodiment 1
[0038] Under normal temperature and pressure, according to the components specified in Table 1, 50%-80% (wt) of the above-mentioned nylon resin PA polyolefin blend material, 2wt%-20wt% of nylon filler, glass fiber filled coupler 10wt%-29wt% of the joint agent, 8wt%-16wt% of ethylene-vinyl acetate copolymer (EVA) and / or nano-calcium carbonate can be chosen at will, add an appropriate amount of water and stir to obtain a uniform composition solvent. Thereafter, nylon resin raw materials were prepared as described above. There are many factors affecting the reaction of polyolefin-grafted maleic anhydride, mainly including the type and concentration of the initiator, the mass concentration of the monomer, the type and concentration of the additive, the reaction temperature and the reaction time, etc. When the concentration of initiator dicumyl peroxide DCP increases, the grafting rate increases accordingly, but the amount of DCP is too much, accompanied by cross-linking reaction; ...
Embodiment 2- Embodiment 6
[0043] Example 2-Example 6, according to the content of each combination specified in the following Table 1, repeat the experiment Example 1 and describe the method to implement.
[0044] Table 1
[0045] Content of each component (wt%)
Example 2
Example 3
Example 4
Example 5
Example 6
nylon resin
51
57
60
68
77
Nylon filler
18
10
4
7
3
coupling agent
19
23
22
12
11
(EVA) and / or CaCO
12
10
14
13
9
[0046] In the above-mentioned embodiment, the aqueous solution method can be adopted, and the saline solution is directly sent to the nylon production plant for polycondensation. The PA66 process can be used: PA66 resin drying - raw material mixing - extrusion granulation - injection molding proofing - testing and analysis. Process conditions: extrusion temperature 250--280°C, screw speed 300 rpm, injection temperature 230--260°C. There a...
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