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Method for modifying thermoplastic engineering plastics by using glass fibre and its equipment

A glass fiber and engineering plastic technology, applied in the field of glass fiber modified thermoplastic engineering plastics, can solve the problems of inability to add lengths, glass fiber waste glass fibers can not be used, uneven fibers, etc., to save costs and be beneficial to environmental protection Effect

Inactive Publication Date: 2007-03-21
朱胤儒
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantages of the above method are: the added glass fiber must be continuous and uniform in thickness or relatively uniform in length not greater than 5mm, so that the added glass fiber is limited, so that the glass fiber, especially the waste glass fiber, cannot be used.
The feeding section of this composite screw is suitable for adding powder materials, but fibers with uneven lengths cannot be added. If glass fibers are added with uneven lengths, they cannot enter the screw.

Method used

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  • Method for modifying thermoplastic engineering plastics by using glass fibre and its equipment
  • Method for modifying thermoplastic engineering plastics by using glass fibre and its equipment
  • Method for modifying thermoplastic engineering plastics by using glass fibre and its equipment

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Embodiment Construction

[0014] A method for glass fiber modified thermoplastic engineering plastics. It adds glass fibers in the molten state of thermoplastic engineering plastics, and extrudes modified engineering plastics after stirring. The added glass fibers are glass fibers with uneven lengths, and their lengths are not more than 8 cm. The addition of the glass fiber can be added in a vibration state, which is that the vibration frequency is 50 Hz, and of course it can be at any value in the range of 20-200 Hz. The aforementioned thermoplastic engineering plastic is nylon 66, and of course the method of the present invention is also suitable for nylon 6 syndiotactic polystyrene or polymethylene terephthalate or polybutylene terephthalate or polystyrene.

[0015] The above-mentioned equipment for glass fiber modified thermoplastic engineering plastics. Its production equipment comprises twin-screw extruder as shown in Figure 1, Figure 2, Figure 3, and described twin-screw extruder comprises two ...

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Abstract

The present invention discloses a method for modifying thermoplastic engineering plastics by utilizing glass fibres with different sizes and its equipment. Its glass fibres can be added into the molten engineering plastics under the condition of vibration, then they are stirred and extruded so as to obtain the invented glass fibre modified engineering plastics. Its equipment includes twin screw extruder, it inctudes screw rod, machine cylinder, heating device, modifying material charging hole and feeding channel, etc. Said invention can use waste glass fiber as raw material, not only can save cost, but also is favorable for environment protection.

Description

technical field [0001] The invention relates to a method for modifying thermoplastic engineering plastics with glass fibers and production equipment thereof. Background technique [0002] Engineering plastics represented by polyamide (PA), polycarbonate (PC), polyoxymethylene (POM), polybutylene terephthalate (PBT), and polytetrafluoroethylene (PTEE) have developed rapidly. , Gradually replace metals and are widely used in machinery, electronics, automobiles, construction, furniture and other industries. It has the advantages of wear resistance, corrosion resistance, light weight, and good plasticity. In recent years, people have made in-depth research on adding reinforcement materials to engineering plastics. Usually, the mechanical properties of engineering plastics are improved by adding silica powder, carbon powder, talcum powder, mica, calcium carbonate and various short fibers. This is achieved by blending alloys. The 442-443 page of " performance and application man...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K7/14B29C47/36B29C48/63B29C48/40
CPCB29C47/6093B29C48/63B29C48/40
Inventor 朱胤儒
Owner 朱胤儒
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