Molten resin defoaming method and spinning forming method

A technology of molten resin and forming method, which is applied in the direction of melt spinning, filament forming treatment, spinning solution filtration, etc., which can solve the problems of sticking and agglomeration of molten resin on scrapers or umbrella pages, so as to reduce air bubbles and avoid Effect of degradation reaction and stable performance
CN112391685AActive Publication Date: 2021-02-23INST OF CHEM CHINESE ACAD OF SCI
6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF CHEM CHINESE ACAD OF SCI
Publication Date
2021-02-23

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a molten resin defoaming method and a spinning forming method. The defoaming method comprises the following steps: S1, feeding; S2, in a vacuum environment, carrying out spinning treatment on molten resin; and S3, in the vacuum environment, carrying out defoaming treatment on the resin subjected to spinning. According to the molten resin defoaming method provided by the invention, the molten resin is jetted into filaments by a spinning process, the specific surface area of the resin filaments is increased, bubbles are extremely easy to escape from the surfaces or the interiors of the resin filaments, and the defoaming effect is remarkable. The invention further provides a spinning forming method, the defoamed resin is spun, the bubbles in resin yarn are remarkably reduced, and the quality of the resin yarn is remarkably improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of resin spinning, and in particular relates to a method for defoaming molten resin and a spinning forming method. Background technique

[0002] Resins can be classified into thermoplastic resins and thermosetting resins. In the process of producing resin fibers, one of the most fundamental factors determining the quality of raw resin filaments depends on the defoaming effect of the spinning solution. The quality of the defoaming effect directly determines whether the later spinning process can be carried out smoothly. There will be bubbles in the spinning solution during polymerization or transportation. Larger bubbles will cause interruption, deformation, and end breakage of the spinning solution through the spinneret hole, while smaller bubbles will remain in the fiber through the spinneret hole, causing The fiber has holes, and it is easy to break to form wool and broken filaments during drafting. When the defo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More