A kind of high-performance fiber layer composite plate and its preparation method
A composite sheet and fiber composite technology, applied in the direction of chemical instruments and methods, laminated, layered products, etc., can solve problems such as unstable production, high consumption, and failure to meet market demand, and achieve excellent comprehensive mechanical properties, good resistance flammability effect
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Embodiment 1
[0024] Take raw materials according to the following parts by weight: 50 parts of glass fibers, 50 parts of mixtures of PPS fibers and PEI fibers (both weight ratios are 3: 1 in the mixture);
[0025] Mix the mixture of glass fiber, PPS fiber and PEI fiber evenly, put the mixed fiber into the opener for opening treatment; transport the mixed fiber after opening treatment to the carding machine for carding and forming, and send it to the web-laying machine after carding Intermediate cross-lapping; the laid fiber web is transported to the needle loom for needle punching and compaction, and then rolled by a roller press at room temperature, and cut into fiber composite mats of required specifications.
[0026] The fiber composite mat prepared above is plasticized and press-molded at 290-330°C, the molding time is 0.5-2min, and the pressure is 15-30MPa, and then the upper and lower surfaces of the obtained fiber composite board are covered with PTFE film, at 290 Carry out the seco...
Embodiment 2
[0028] Take raw materials according to the following parts by weight: 50 parts of basalt fiber, 50 parts of PPS fiber;
[0029] Evenly mix 50 parts of basalt fiber and 50 parts of PPS fiber, put the mixed fiber into the opener for opening treatment; transport the mixed fiber after opening treatment to the carding machine for carding and forming, and send it to the web-laying machine after carding Cross-lapping: 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 fiber composite mats of required specifications.
[0030] The fiber composite felt prepared above is plasticized and molded at 290-330°C, the molding time is 0.5-2min, the pressure is 15-30MPa, and then the upper and lower surfaces of the obtained fiber composite board are covered with PTFE film, and the temperature is 290-330℃. The second molding composite molding is carried out at ℃, the molding time i...
Embodiment 3
[0032] Take raw materials according to the following parts by weight: 50 parts of aramid fibers, 50 parts of mixtures of PPS fibers and PEI fibers (the weight ratio of the two in the mixture is 1: 1);
[0033] Evenly mix 50 parts of aramid fibers and 50 parts of a mixture of PPS fibers and PEI fibers, and put the mixed fibers into an opener for opening treatment; transport the opened mixed fibers to a carding machine for carding and forming, carding After that, it is sent to the laminating machine for cross-lapping; the laid fiber web is sent to the needle loom for needle punching and compaction, and then rolled by a roller press at room temperature, and cut into fiber composite mats of required specifications.
[0034] The fiber composite felt prepared above is plasticized and molded at 290-330°C, the molding time is 0.5-2min, the pressure is 15-30MPa, and then the upper and lower surfaces of the obtained fiber composite board are covered with PTFE film, and the temperature is...
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