Low-diffusion modified polypropylene composite material and preparation method thereof
A composite material and polypropylene technology, which is applied in the preparation of the modified polypropylene composite material, the modified polypropylene composite material with low emission, and the low odor field, can solve the complex equipment and process conditions, and is not suitable for blending modification. It can solve problems such as sexual technology and other problems, and achieve the effects of excellent mechanical properties, low odor emission, good impact resistance and strength.
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Embodiment 1
[0039] Prepare according to the following formula:
[0040] (a) 70 parts by mass of polypropylene
[0041] (b) 30 parts by mass of mineral filler (wollastonite)
[0042] (c) 3 parts by mass of odor adsorbent
[0043] (d) 0.1 parts by mass of additives
[0044] Wherein, the odor adsorbent includes: bentonite, porous silica and activated alumina, according to the mass ratio, bentonite: porous silica: activated alumina=1: 1: 1;
[0045]First mix polypropylene and mineral filler at 1200 rpm for 5 minutes, then add odor adsorbent, stir at 1500 rpm for 10 minutes, and finally add additives, at 1200 rpm Stir for 5 minutes at a rotational speed to obtain a premix. The premixed material is fed into a twin-screw extruder, extruded and granulated to obtain a low-emission modified polypropylene composite material, which can be used for automotive interior parts.
[0046] After testing, the properties of the prepared polypropylene composite material are as follows:
[0047] Density 1...
Embodiment 2
[0057] Prepare according to the following formula:
[0058] (a) 80 parts by mass of polypropylene
[0059] (b) 20 parts by mass of mineral filler
[0060] (c) 3 parts by mass of odor adsorbent
[0061] (d) 0.1 parts by mass of additives
[0062] Wherein, mineral filler comprises: wollastonite and calcium carbonate, according to mass ratio, wollastonite: calcium carbonate=1: 1; Odor adsorbent comprises: bentonite, porous silica and activated alumina, according to mass ratio, bentonite: porous Silica: activated alumina = 1:1:1;
[0063] First mix polypropylene and mineral filler at 1200 rpm for 5 minutes, then add odor adsorbent, stir at 1500 rpm for 10 minutes, and finally add additives, at 1200 rpm Stir for 5 minutes at a rotational speed to obtain a premix. The premixed material is fed into a twin-screw extruder, extruded and granulated to obtain a low-emission modified polypropylene composite material, which can be used for automotive interior parts.
[0064] After tes...
Embodiment 3
[0075] Prepare according to the following formula:
[0076] (a) 80 parts by mass of polypropylene
[0077] (b) 20 parts by mass of mineral filler
[0078] (c) 3 parts by mass of odor adsorbent
[0079] (d) 0.1 parts by mass of additives
[0080] Wherein, mineral filler comprises: wollastonite and calcium carbonate, according to mass ratio, wollastonite: calcium carbonate=1: 2; Odor adsorbent comprises: bentonite, porous silica and activated alumina, according to mass ratio, bentonite: porous Silica: activated alumina = 1:1:1;
[0081] First mix polypropylene and mineral filler at 1200 rpm for 5 minutes, then add odor adsorbent, stir at 1500 rpm for 10 minutes, and finally add additives, at 1200 rpm Stir for 5 minutes at a rotational speed to obtain a premix. The premixed material is fed into a twin-screw extruder, extruded and granulated to obtain a low-emission modified polypropylene composite material, which can be used for automotive interior parts.
[0082] After tes...
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