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Nylon corrugated-pipe composite material and preparation method thereof

A composite material and corrugated pipe technology, applied in the field of nylon corrugated pipe composite material and its preparation, can solve the problem of flame resistance, thermal stability, aging resistance and low temperature resistance, unfavorable extrusion molding, nylon 6 raw materials The problem of high melting index can achieve good thermal stability and aging resistance, long service life and good black brightness.

Inactive Publication Date: 2019-03-29
徐州铂蓝新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bellows made of nylon 6 has poor flame resistance, thermal stability, aging resistance and low temperature resistance, and in the extrusion molding process of bellows, the raw material melting index of nylon 6 is high. Not conducive to extrusion

Method used

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  • Nylon corrugated-pipe composite material and preparation method thereof
  • Nylon corrugated-pipe composite material and preparation method thereof
  • Nylon corrugated-pipe composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Prepare the mixture:

[0030] 75 parts of nylon 6, 14 parts of flame retardant, 2 parts of heat stabilizer, 0.5 parts of toughening agent, 8 parts of anti-cold agent, and 1 part of coloring agent are measured, added to the mixer and mixed, mixed 8-10min to get the mixture;

[0031] (2) Preparation of nylon bellows composite material:

[0032] Extrude and granulate the above mixture on a twin-screw extruder. From the feed port to the die head, the temperature in the first zone is 250-240°C, the temperature in the second zone is 240-230°C, the temperature in the third zone is 230-220°C, and the temperature in the fourth zone is 220°C. ~210℃, the temperature of the fifth zone is 210~200℃, the temperature of the sixth zone is 200~190℃, the temperature of the seventh zone is 190~180℃, the temperature of the die head is 240~220℃, the residence time is 0.5~2min, and the speed of the main engine is 300~340r / min, discharging, cooling after extrusion, drying, pelletizing, ...

Embodiment 2-3

[0033] Embodiment 2-3: according to the flow process of embodiment 1, change the weight part of each component in nylon 6, flame retardant, thermal stabilizer, toughening agent, anti-cold agent, coloring agent or pigment respectively, as shown in table 1 Show:

[0034] Each component weight part of table 1 embodiment 2 and embodiment 3

[0035]

[0036] In the above-mentioned Examples 1-3, the flame retardant is decabromodiphenylethane, decabromodiphenyl ether, decabromodiphenylethane, polybrominated styrene, octabromoether, octabromo-S ether, three One of antimony oxide and zinc borate or a mixture of two or more of them; the thermal stabilizers of phenols, amines, phosphites, complexes of acryloyl functional groups and thioesters, calixarene thermal One or more mixtures of stabilizers; the toughening agent is silicone powder or silicone masterbatch; the anti-cold agent is maleic anhydride grafted EPDM rubber or maleic anhydride grafted POE or a mixture of the two, the P...

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PUM

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Abstract

The invention discloses a nylon corrugated-pipe composite material and a preparation method thereof. The composite material provided by the invention is prepared from the following main components byweight: 75 to 85 parts of nylon 6, 14 to 17 parts of a flame retardant, 2 to 3 parts of a heat stabilizer, 0.5 to 1 part of a toughening agent and 8 to 12 parts of a cold-resistant agent. The preparation method comprises the following steps: adding calculated components into a material mixer, carrying out uniform and full mixing so as to obtain a mixed material, and subjecting the mixed material to extruding granulation through an extruding machine so as to obtain the nylon corrugated-pipe composite material. The nylon corrugated-pipe composite material provided by the invention has excellentthermal stability, aging resistance, low-temperature impact resistance and flame-retardant performance, is applicable to an extrusion processing technique at the same time, and has long service life;meanwhile, the production process for the nylon corrugated-pipe composite material is simple, has low cost, is applicable to industrial production and greatly improves the application range of corrugated-pipe products in the automotive industry.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a bellows material and a preparation method thereof, in particular to a nylon bellows composite material and a preparation method thereof. Background technique [0002] The bellows is a cylindrical thin-walled elastic shell with transverse corrugations, which has many functions such as conversion, compensation, connection and energy storage. Compared with pipes made of the same material, corrugated pipes have the advantages of light weight, beautiful appearance, durability, low cost and good elasticity, and are widely used in petrochemical, instrumentation, aerospace, chemical, electric power, cement, metallurgy and other fields. [0003] At present, the materials for preparing bellows mainly include metal and plastic. Commonly used metal materials are stainless steel, brass, beryllium bronze and tin bronze. Commonly used plastic materials are polypropylen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L83/04C08L23/08C08L25/18C08K13/02C08K5/00C08K5/06C08K5/03C08K3/22C08K3/38
CPCC08L77/02C08K2003/387C08L2201/02C08L2201/08C08L2203/18C08L2205/035C08L2207/04C08L2310/00C08L83/04C08L23/0815C08L25/18C08K13/02C08K5/005C08K5/0066C08K5/06C08K5/03C08K3/2279C08K3/38
Inventor 兰雪芬
Owner 徐州铂蓝新材料科技有限公司