A kind of production method of fiber grade polypropylene
A production method, polypropylene technology, applied in chemical instruments and methods, cleaning methods and utensils, single-component polyolefin rayon, etc., can solve the problem of uneven degradation of polypropylene and easy adhesion to the inner wall of the mixing device , the degradation agent and polypropylene powder are not easy to be mixed uniformly, so as to avoid the loss of cleaning ability and ensure the effect of effective cleaning.
Active Publication Date: 2021-11-30
湖北健坤高分子新材料有限公司
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Problems solved by technology
[0004] In order to make up for the deficiencies of the prior art and solve the problem that the mixing of the degradation agent and the polypropylene powder is not easy to be uniform, resulting in uneven degradation of polypropylene and easy adhesion to the inner wall of the mixing device, the invention proposes a production of fiber-grade polypropylene method
Method used
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[0032] As an embodiment of the present invention, the cleaning unit 4 includes a pull cord 41, a bump 42, a lever 43, a cleaning block 44 and a slideway 45; Road 45, slidingly connected with a cleaning block 44 in the slideway 45; the cleaning block 44 is an ox horn shape, and the corner tip of the cleaning block 44 faces the direction of the inner wall of the tank body 8; the end of the cleaning block 44 near the rotating shaft 2 is provided with a spring; The bottom of the cleaning block 44 is provided with an L-shaped driving lever 43, the L-shaped turn of the driving lever 43 is hinged with the second connecting rod 23 and the hinge is provided with a torsion spring, and the corresponding position of the cleaning block 44 and the driving lever 43 A block 46 is provided, and the block 46 is used to block the lever 43; the end of the first connecting rod 22 away from the rotating shaft 2 and the side close to the second connecting rod 23 is provided with a bump 42; the bump 4...
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Abstract
The invention belongs to the technical field of polypropylene resin production, and specifically relates to a production method of fiber-grade polypropylene. The outer tank is covered with a tank body, and the tank body and the outer tank are slidably connected in the horizontal direction. There is a set of springs in between; the bottom of the tank near the middle is provided with a discharge port; the top of the tank is fixedly connected with a motor; the top of the tank around the motor is symmetrically arranged with two feed ports; There is a vertically placed rotating shaft in the rotating connection; the output shaft of the motor extends into the tank and is fixedly connected to the top of the rotating shaft; the middle part of the rotating shaft is provided with a pair of arc bends arranged in reverse and staggered up and down; each arc bend A group of No. 1 connecting rod and No. 2 connecting rod are arranged in sequence on the top; the present invention lifts up No. 1 connecting rod through arc bending through the transmission of slip ring, No. 3 connecting rod, wedge, jack block and screw, and then Push out the cleaning unit to clean the powder remaining on the inner wall of the tank.
Description
technical field [0001] The invention belongs to the technical field of polypropylene resin production, in particular to a production method of fiber grade polypropylene. Background technique [0002] Polypropylene is a thermoplastic resin produced by the polymerization of propylene. Polypropylene is a non-toxic, odorless, tasteless milky white highly crystalline polymer, and it is one of the lightest varieties of all plastics. It is especially stable to water, the water absorption rate in water is only 0.01%, the molecular weight is about 80,000-150,000, the formability is good, and the surface gloss of the product is good. Polypropylene has high crystallinity and regular structure, so it has excellent mechanical properties. [0003] Fiber grade polypropylene is polypropylene suitable for drawing to make fibers. This polypropylene has high fluidity. In order to obtain this polypropylene, there are mainly two conventional methods, one is to reduce the molecular weight by ...
Claims
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IPC IPC(8): B29B9/06B29B7/16B08B9/087B08B9/093D01F6/46D01D5/08
CPCB08B9/087B08B9/093B29B7/16B29B9/06D01D5/08D01F6/46
Inventor 孙勇董军辉房玉山
Owner 湖北健坤高分子新材料有限公司