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A kind of equipment for producing glass fiber reinforced nylon material

A technology of glass fiber and nylon, which is applied in the field of equipment for producing glass fiber reinforced nylon materials. It can solve the problems of immature glass fiber reinforced nylon equipment and production technology, inability to disperse glass fibers uniformly, and inability to obtain high-performance materials. Tensile resistance, good resilience, outstanding effect of heat deformation resistance

Active Publication Date: 2018-04-06
上海日晶工程塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] At present, the amount of glass fiber can be added within a wide range of 50wt%; usually the content is between 15-45wt%, often 30wt%, while in the existing technology for producing glass fiber reinforced nylon materials, the amount of glass fiber The upper limit is generally 60wt%, which can only be achieved by a few foreign companies such as Swiss EMS. If the amount of glass fiber exceeds 60%, it cannot be extruded
[0012] Even, the formula, equipment and production process of most manufacturers even 50wt% glass fiber reinforced nylon are still immature, and the material discoloration in the extruded material is serious, and the surface of the material is rough (fibrous degree is serious), and, because the glass fiber cannot be uniformly dispersed , cannot obtain high-performance materials

Method used

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  • A kind of equipment for producing glass fiber reinforced nylon material
  • A kind of equipment for producing glass fiber reinforced nylon material
  • A kind of equipment for producing glass fiber reinforced nylon material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062]

[0063] Step 1, mix nylon 6 with silane coupling agent KH550.

[0064] Step 2, then add lubricating dispersant and heat-resistant stabilizer, mix and send into twin-screw extruder for kneading. Step 3, after the mixing is completed, the glass fiber is fed into the extruder through the side feeding of the extruder; extruding.

[0065] Among them, the operating temperature of the extruder is from the feed inlet to the extrusion hole, and the temperatures in each area are 230°C, 245°C, 245°C, 240°C, 235°C, 230°C, 225°C, 230°C, and 240°C. The speed is 220-260 rpm.

[0066] In the extruder, the delivery section of the screw, as shown in Figure 1 and Figure 2, in the existing extruder used to produce nylon, the spiral groove of the screw is a trapezoidal spiral groove ( Figure 1A and Figure 2A ), the screw groove and thread are all of this structure. The applicant found that under the condition of high glass fiber content, the trapezoidal spiral groove is easy to caus...

Embodiment 2-3

[0070] According to the method described in Example 1, glass fiber reinforced nylon 6 with a glass fiber content of 50 wt% and 60 wt% was prepared.

[0071] Table 1 shows the physical properties of glass fiber reinforced nylon materials under several glass fiber content conditions.

[0072] Table 1, the physical properties of embodiment 1-3 glass fiber reinforced nylon material

[0073]

[0074] It can be seen that in the case of 70wt% glass fiber content, the flexural strength and flexural modulus are the largest, and exceed those of non-ferrous metals and pure ferrous metals.

Embodiment 4

[0076]

[0077] The angle between the wall of the proximal end of the zigzag spiral groove of the screw in the conveying section and the vertical line is 3°, and the angle between the opposite wall and the vertical line is 30°.

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Abstract

The invention discloses equipment for producing a glass fiber reinforced nylon material. The equipment comprises an extruder, wherein the extruder comprises a screw rod, a machine barrel and power equipment; the machine barrel is provided with a glass fiber feed port in the middle section of the extruder; and a sawtooth-shaped spiral groove is formed in a conveying section of the screw rod. The equipment can conveniently extrude out the glass fiber reinforced nylon with high glass fiber content (even reaching 70 wt%); the material has the advantages of good color, smooth surface, prominent thermal deformation resistance, excellent tensile resistance and impact resistance, in particular, higher bending strength and modulus, which exceed that of nonferrous metals; and the lower material cost is obtained.

Description

[0001] The present invention is a divisional application of the Chinese invention patent application 201410345784.1 filed on July 18, 2014. technical field [0002] The invention relates to a production method of reinforced nylon composite material, in particular to a glass fiber reinforced nylon material, as well as the composition, method and equipment for producing the glass fiber reinforced nylon material. Background technique [0003] Non-ferrous metals are non-renewable resources. With the increasingly wide application of special materials, non-ferrous metals have become increasingly scarce resources, and metal processing requires high energy consumption, high processing costs, and poor quality control stability. Therefore, the development of new materials that can replace non-ferrous metals has long been a research and development hotspot in material science. [0004] Nylon (polyamide) material has low density, good processing performance, good wear resistance and sel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/00B29C47/60B29C47/12B29C48/30
CPCB29C48/023B29C48/30B29C48/59C08K5/544C08K7/14C08K13/04C08L77/02
Inventor 徐奔徐文权
Owner 上海日晶工程塑料科技有限公司
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