Brush wire for PP (polypropylene) road sweeping brush and preparation method of brush wire

A technology of brushing and sweeping the road, applied in the field of daily necessities, can solve the problems of difficult to control the roundness of PP brushed wire, poor roundness and straightness, etc., to achieve good straightness, good roundness, and improved durability. abrasive effect

CN114293275AActive Publication Date: 2022-04-08JIANGMEN BAOLIDE PLASTIC
9 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-04-08

Smart Images

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

Abstract

The invention is suitable for the technical field of daily necessities, and provides a brush wire for a PP road sweeping brush and a preparation method of the brush wire. The preparation method comprises the following steps: (1) uniformly mixing 80%-98% of PP particles, 0-5% of toner or color master batch and 2%-15% of auxiliaries, melting, extruding, and then solidifying and freezing to obtain original filaments; the original filament is an original filament with a hollow structure; (2) carrying out first traction on the original filaments, then heating, carrying out second traction, carrying out first shaping, finally carrying out third traction, and carrying out second shaping, so as to obtain the brush filaments for the PP road sweeping brush; the brush wire for the PP road sweeping brush is a hollow brush wire. The invention also provides the brush wire for the PP road sweeping brush, which is prepared by the preparation method. The brush wire is of a hollow structure and has good straightness and roundness, the hardness and heat dissipation efficiency of the brush wire can be effectively improved, loss is small, and the service life is long.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of daily necessities, and in particular relates to a brush filament for a PP road sweeping brush and a preparation method thereof. The PP road sweeping brush has high hardness and good wear resistance, and at the same time is straight, with high cross-section roundness and good aesthetic appearance. Background technique

[0002] With the enhancement of people's awareness of environmental protection, the requirements for urban and rural road environment are getting higher and higher. The road sweeping brush is a special brush used to clean the road surface, and is generally placed under the sanitation vehicle. In general, the road sweeping brush installed under the sanitation vehicle is a disc brush or a steel wire disc brush. In addition, road sweeping brushes are also divided into: square road sweeping brushes, tablet roller combination brushes, roller sweeper brushes, round branch road sweeping brushes, ...

Examples

preparation example Construction

[0032] Specifically, on the one hand, an embodiment of the present invention provides a method for preparing a brush filament for a PP road sweeping brush, comprising the following steps:

[0033] (1) Mix 80%-98% PP granules, 0-5% toner or color masterbatch, and 2%-15% additives evenly, melt them, extrude them, and then solidify and freeze them to obtain raw silk; The silk is a raw silk with a hollow structure; the percentage is by weight;

[0034] (2) The raw silk is drawn for the first time, then heated for the second time, then shaped for the first time, finally shaped for the third time, and then shaped for the second time to obtain a PP road sweeping brush Brush filaments: the brush filaments for the PP road sweeping brush are hollow brush filaments.

[0035] In step (1),

[0036] The auxiliary agent is a toughening agent. By adding a toughening agent and controlling the dosage to be 2% to 15%, the toughness of the brush filaments can be well increased, and the breakin...

Embodiment 1

[0050] A preparation method for brush filaments for PP road sweeping brush, comprising the steps of:

[0051] (1) 80% PP particles, 5% color masterbatch, and 15% toughening agent are mixed uniformly and then melted, extruded, and then solidified and frozen to obtain a raw silk; the raw silk is a raw silk with a hollow structure; The percentages mentioned are percentages by weight;

[0052] (2) The raw silk is drawn for the first time, then heated for the second time, then shaped for the first time, finally shaped for the third time, and then shaped for the second time to obtain a PP road sweeping brush Brush filaments: the brush filaments for the PP road sweeping brush are hollow brush filaments. Its cross-sectional structure is as figure 1 As shown, the longitudinal surface structure is as figure 2 shown. From figure 1 It can be seen that the brush filaments for the PP sweeping brush are hollow filaments; figure 2 It can be seen that the brush filaments of the PP road...

Embodiment 2

[0067] A preparation method for brush filaments for PP road sweeping brush, comprising the steps of:

[0068] (1) Mix 98% PP granules and 2% toughening agent evenly, melt, extrude, and then solidify and freeze to obtain the original silk; the original silk is an original silk with a hollow structure; the percentage is by weight ;

[0069] (2) The raw silk is drawn for the first time, then heated for the second time, then shaped for the first time, finally shaped for the third time, and then shaped for the second time to obtain a PP road sweeping brush Brush filaments: the brush filaments for the PP road sweeping brush are hollow brush filaments.

[0070] In step (1),

[0071] The melting and the extrusion were carried out in an extruder at a temperature of 230°C.

[0072] The spinning die of the extruder is a hollow spinning die; the cavity size of the hollow structure is adjusted by the size of the airflow passing into the hollow spinning die.

[0073] The coagulation and...