Fireproof and flame-resistant composite material used for locomotive bellows, and preparation method thereof

A composite material, fire-resistant and flame-retardant technology, applied in the field of fire-resistant and flame-retardant composite materials and their preparation, and thermoplastic polyamide composite materials, can solve problems such as difficult extrusion processing, poor compatibility of nylon, and reduced physical and processing properties of materials , to achieve excellent mechanical properties and good surface gloss

CN106700514AInactive Publication Date: 2017-05-24上海博怀化工有限公司
5 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-05-24
Estimated Expiration
Not applicable · inactive patent

Smart Images

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

Abstract

The invention discloses a fireproof and flame-resistant composite material used for locomotive bellows, and a preparation method thereof. The fireproof and flame-resistant composite material is a nylon66 modified phosphorus-free flame-resistant nylon6 composite material, and comprises, by weight, 35-70 parts of nylon6, 10-35 parts of a thermoplastic polymer B, 8-23 parts of a nitrogen series flame retardant, 0-3 parts of a synergistic flame retardant, 2-5 parts of a flexibilizer, and 0.1-2.5 parts of an antioxidant, a lubricant, a mold lubricant and a stabilizer. The nylon66 modified phosphorus-free flame-resistant nylon6 composite material prepared through the method reaches UL-94V0 grade flame retardation, and finished bellows pass DIN5510-2 destroy length test, and have excellent mechanical performances.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a fire-resistant and flame-retardant corrugated pipe material applied to rail locomotives and high-speed railway rolling stock, in particular to a fire-resistant and flame-retardant composite material used for locomotive bellows and its preparation method. The material is a thermoplastic polyamide composite material. Background technique

[0002] Corrugated tubes, also known as wire harness bellows, are generally used on wiring harnesses such as construction machinery and automobiles to protect the wire sheath from damage, and at the same time reduce the adverse effects of sunlight, chemicals and other environments on the wire. Common bellows materials are metal and plastic, among which plastics include PVC, nylon, PE and other materials. Metal bellows have high strength, but poor flexibility, poor insulation, no resistance to chemical corrosion, and high cost; plastic bellows are cheap, easy to process, chemical-resistant, an...

Examples

Embodiment Construction

[0026] The invention relates to a fire-resistant and flame-retardant composite material for locomotive bellows, which is a halogen-free, phosphorus-free, flame-retardant nylon 6 composite material modified by nylon 66, which includes:

[0027] 1) Nylon 6: 35-70 parts by weight,

[0028] 2) thermoplastic polymer B: 10-35 parts by weight,

[0029] 3) nitrogen-based flame retardant: 8-23 parts by weight,

[0030] 4) synergistic flame retardant: 0-3 parts by weight,

[0031] 5) Toughening agent: 2-5 parts by weight,

[0032] 6) Antioxidant, lubricant, release agent, stabilizer and other processing aids: 0.1-2.5 parts by weight;

[0033] Wherein, nylon 6 is preferably a high-viscosity nylon 6 resin, preferably in an amount of 62-70 parts by weight; thermoplastic polymer B can be one or more of nylon 6 and nylon 66, preferably nylon 66, with a relative viscosity of 2.4-3.0, More preferably nylon 66 with a relative viscosity of 2.5-2.8 and an amino-terminal content of 30-45mmol / K...