High performance fiber layer composite board and preparation method thereof
A composite sheet and fiber composite technology, applied in the direction of chemical instruments and methods, lamination, layered products, etc., can solve the problems of large consumption, unstable production, unstable quality of fiber products, etc., and achieve good flame retardancy, comprehensive The effect of excellent mechanical properties
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Embodiment 1
[0024] Weigh the raw materials according to the following parts by weight: 50 parts of glass fiber, 50 parts of a mixture of PPS fiber and PEI fiber (the weight ratio of the two in the mixture is 3:1);
[0025] Mix the glass fiber with the mixture of PPS fiber and PEI fiber evenly, and put the mixed fiber into the opener for opening treatment; transport the opened mixed fiber to the carding machine for carding and forming, and then send it to the netting machine after carding Middle cross-laying; transport the laid fiber web to the needle punching machine for needle punching and compaction, and then pass through the roller press at room temperature to cut into the fiber composite felt of the required specifications.
[0026] The fiber composite felt prepared above is plasticized and molded at 290-330°C, the molding time is 0.5-2 min, and the pressure is 15-30 MPa, and then the upper and lower surfaces of the obtained fiber composite sheet are covered with PTFE film. Perform the sec...
Embodiment 2
[0028] Weigh the raw materials according to the following parts by weight: 50 parts of basalt fiber, 50 parts of PPS fiber;
[0029] Mix 50 parts of basalt fiber and 50 parts of PPS fiber evenly, and put the mixed fiber into the opener for opening treatment; transport the opened mixed fiber to the carding machine for carding and forming, and then send it to the netting machine after carding Cross-laying; the laid fiber web is transported to the needle punching machine for needle punching and compaction, and then rolled by a roller press at room temperature, and cut into the fiber composite felt of the required specifications.
[0030] The fiber composite felt prepared above is plasticized and molded at 290-330°C, the molding time is 0.5-2 min, and the pressure is 15-30 MPa. Then, the upper and lower surfaces of the obtained fiber composite sheet are covered with PTFE film. The second compression molding is performed at ℃, the molding time is 0.5-2min, the pressure is 15-30MPa, and ...
Embodiment 3
[0032] Weigh the raw materials according to the following parts by weight: 50 parts of aramid fiber, 50 parts of a mixture of PPS fiber and PEI fiber (the weight ratio of the two in the mixture is 1:1);
[0033] Mix 50 parts of aramid fiber and 50 parts of the mixture of PPS fiber and PEI fiber uniformly, and put the mixed fiber into the opener for opening treatment; transport the opened mixed fiber to the carding machine for carding and forming. After that, it is sent to the web-laying machine for cross-laying; the laid fiber web is transported to the needle punching machine for needle punching and compaction, and then it is rolled by a roller press at room temperature and cut into a fiber composite felt of required specifications.
[0034] The fiber composite felt prepared above is plasticized and molded at 290-330°C, the molding time is 0.5-2 min, and the pressure is 15-30 MPa. Then, the upper and lower surfaces of the obtained fiber composite sheet are covered with PTFE film. T...
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