Glass fiber-added polypropylene plastic and preparation method thereof
A polypropylene plastic and glass fiber technology, applied in the field of polypropylene plastics, can solve the problems of poor plasticity of polypropylene plastics, poor plasticization efficiency of polyester plasticizers, poor durability of monomer plasticizers, etc. , Reduce the possibility of containing impurities, the effect of stable plasticizing properties
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preparation example 1
[0035] Preparation example 1: a kind of ether ester compound, in this preparation example, this ether ester compound is set as cardanol butyl ether propyl ester, and cardanol butyl ether propyl ester consists of raw materials comprising parts by weight as shown in Table 1 production.
[0036] The preparation method of cardanol butyl ether propyl ester comprises the following steps: adding epoxy cardanol butyl ether and propionic acid into a reaction kettle, stirring continuously to form a mixed solution during the adding process, heating the mixed solution, adding propionic acid to the mixed solution 2-keto-D-gluconic acid with an acid weight of 2%, reacted at 150°C for 2.5 hours, filtered out the 2-keto-D-gluconic acid to obtain a filtrate, added cyclohexene to the filtrate, mixed evenly and statically Put the filtrate for 1 hour, observe the solution through a sight glass, and when the solution has obvious stratification, take out the lower layer solution, and the preparatio...
preparation example 2-8
[0037] Preparation example 2-8: a kind of cardanol butyl ether propyl ester, which is different from Example 1 in that it is made of raw materials containing the parts by weight shown in Table 1.
[0038] Raw materials and their weight in Table 1 Preparation Example 1-8
[0039]
[0040]
[0041] The parts by weight of the product in Table 2 Preparation Example 1-8
[0042] Cardanol Butyl Ether Propyl Ester (kg) Preparation Example 1 0.85 Preparation example 2 0.64 Preparation example 3 0.84 Preparation Example 4 0.41 Preparation Example 5 0.82 Preparation example 6 0.72 Preparation Example 7 0.83 Preparation example 8 0.53
[0043] Test result and analysis: as can be seen in conjunction with preparation example 1-5 and table 2, when the amount of epoxy cardanol butyl ether is less than propionic acid, the output of propyl ester is the lowest, along with the epoxy cardanol butyl ether content The increase of...
Embodiment 1
[0048] A polypropylene plastic with glass fiber added, the polypropylene plastic with glass fiber added is made of raw materials containing the parts by weight shown in Table 3. Among them, the adsorbent is activated carbon, and the filler is calcium silicate.
[0049] The preparation method of the polypropylene plastic that adds glass fiber comprises the following steps:
[0050] (1) cardanol butyl ether propyl ester and adipic acid polyester are added to the mixer;
[0051] (2) Add the rest of the raw materials into the mixer, stir at a speed of 400 rpm for 3 minutes and mix evenly to obtain a mixture;
[0052] (3) Put the mixture into the twin-screw extruder, the screw speed is 400 rpm, the temperature of the C1 section at the main feeding place is 180°C, the temperature of the C2 section is 220°C, and the temperature of the C3 section is 220°C, The temperature of the C4 section is 220°C; the temperature of the C5 section at the natural exhaust is 160°C; the temperature o...
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