2016年5月5日星期四

Vertical Flammability Test Resolution on Automotive Interior Materials

Vertical Flammability Test





















Vertical Flammability Test Resolution on Automotive Interior Materials
Date: 2016-5-5 Author: QINSUN
With the improvement of people's living standards, people pay more and more attention to security issues, the fire was one of the most common security risks, but also focus on scientific and technological research direction where paper focuses on automotive interior materials burning test vertical resolution, automotive interior materials are flame-retardant refers to a substance having or treated material has significantly delayed flame propagation properties. Currently flame retardancy was evaluated in many ways, such as horizontal or vertical combustion test, oxygen index and smoke density, etc.
  
According to reports, an ordinary family car interior decoration materials consumption is about 20-40kg, these decorations are mainly due to combustible textile fibers lined plate, polyurethane foam material, leather, materials such as hot melt adhesive composition, and mainly distributed in more than forty sites about car interior roof, door linings, carpets, seats, seat belts, insulation blankets, luggage compartment liner, sealed filter felt. Car during transport due to electrical short circuit, engine failure, traffic accidents and other reasons are easily cause a fire, causing property damage, personal injury or death. The flammability of automotive interior trim in an accident tends to increase the degree of fire. Therefore, the flame retardancy of automotive interior materials have greater control of realistic significance in here briefly interior common flame retardant levels of testing methods
Automotive interior materials usually refers to a single material used in automotive interior parts or laminated composite materials, such as a seat cushion, a seat back, seat covers, seat belts, headrests, armrests, movable folding roof, all decorative after the liner (including door fender, side panels envelope after envelope panels, car roof lining), dashboard, glove compartment, interior shelves plate or sill plate, curtains, floor covering, sun visor, wheel cover, hood cover, and any other indoor organic material, filler material to absorb impact energy, gear, etc. when including crash. Common horizontal or vertical combustion test method is a specimen holder in the U-shaped bracket, the combustion chamber at a predetermined height with the flame ignited the free end of the specimen after a certain time, to determine whether the specimen flame extinguished, or when off, and the sample combustion and combustion of the distance from the elapsed time, and then the burning rate can be calculated, in such a way to characterize the flame resistance. The entire test is done in a standard combustion chamber.

Oxygen index (OI) refers to the specified conditions, material minimum oxygen concentration required for combustion flame in a mixed gas stream of oxygen and nitrogen, oxygen volume occupied by the numerical percent expressed evaluate plastics and other a representation method of polymer material combustion relativity, in order to determine the degree of difficulty of the material in contact with the flame burning in the air. The evaluation method is very effective, and therefore subject to the world's attention. The principle is that a sample is fixed vertically upward gas mixture of oxygen and nitrogen in the combustion tube in a transparent, light top specimens, observe the combustion characteristics of the sample, the sample or specimen continuous combustion time and length of combustion given criterion compared by different oxygen concentrations in a series of experiments to estimate the minimum concentration of oxygen
  
Smoke density representation is material decomposition or combustion smoke has clouded the degree of light and vision under the given conditions. Smoke is dispersed solid particles visible, but does not emit air suspension formed, and this is a solid particulate material produced by burning or sublimation. Smoke is a risk factor for the most serious fire, because visibility allows people evacuated from the fire building to help firefighters find the site of the fire and put out, and greatly reduce the visibility of smoke and suffocating. Raw materials and smoldering smoke of burning out is different. The shorter the time to fire evacuees and smoke density and smoke the greater the density of the material, the faster growth can provide.
In fact, the most commonly used method to improve the flame retardancy of the flame retardant is added by processing raw materials to achieve. Common flame retardants include brominated flame retardants, phosphorus-containing flame retardants, nitrogen containing flame retardants and inorganic metal hydroxides and oxides. Flame retardants currently used in our country, the proportion of halogen high (estimated at more than 50%), and where the bulk of long-term human-based product and controversial PBB & PBDE. The amount of inorganic flame retardants rarely, estimated at 15% or less (not including antimony), while the proportion of the United States, Western Europe and Japan, the three major markets of the inorganic flame retardant products are 50% -55%, 40% -45 % and about 30%. China's current production of the larger flame retardants are low-end products can not meet some of the needs required for the high-tech industry, flame retardant engineering plastics. EU RoHS Directive from the environmental point of view clearly defines the limits of the use of brominated flame retardants, and thus our need to develop a non-halogen, low smoke, low toxicity, high efficiency characteristics of the new flame retardant technology
 

More about Vertical Flammability Test


VTEC Vertical Flammability Test Testing Standards: ASTM D6413-99, DOC-FF 3/71, CALIF TB-117, GB/T 5455, CPAI-84
Vertical Flammability Test Applications:
Vertical Flammability Chamber for measuring the vertical flame spread for children’s’ sleepwear, fabrics, other textile materials or resilient filling materials used in upholstered furniture. Comprises a draft free stainless steel cabinet with observation window and back wall painted black for easy test viewing. The different specimen holders and associated hard wares are dependent on the test standards. Automatic Gas Control System could easily control the combustion process.
 Vertical Flammability Test Product Information:
A. Designed with a sealing stainless steel combustion cabinet with observation window;
B. Fitted with standard combustion chronograph, for accurate detection of flame spread rate;
C. Different specimen holders and associated hardware for various test standards;
D. Automatic Gas Control System including solenoid control gas valve and automatic ignition timer and controls.
Configuration and consumables of Vertical Flammability Test:
AUTOMATIC GAS CONTROL, 230V Automatic Gas Control System
Accessories for ASTM D6413-99 TEST PKG(VFC,REQ)FTMS 191-5903(Fabrics)
Include: 
- 1 x Burner
 - 5 x Specimen Holders
 - 1 x Weights
 Optional
 1. CHILD.SLEEPWEAR TEST PKG (VFC, NA)
 Accessories for DOC-FF3/71 (Children’s’ Sleepwear)
 Include:
 - 1 x Burner
 - 5 x Specimen Holders
 2. CALIF.TB-117 TEST PKG
 Accessories for CALIF TB-117 (Resilient Filling Materials Vertical)
 Include: 
- 1 x Burner 
- 5 x Specimen Holder 
- 1 x Weights 
3. CPAI-84 TEST PKG 
Accessories for CPAI-84(Tent) 
Include: Burner, Specimen Holder, Weights
You can follow as below, Qinsun Instruments Co., LTD, Address: No. 258 Banting Road, Shanghai, Zip Code: 201199Phone: +86-21-6420 0566 Fax: +86-21-6420 0566-810 E-mailinfo@qinsun-lab.com    website: www.qinsun-lab.com.

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