A simple way to identify the performance of fire retardant coatings

A simple way to identify the performance of fire retardant coatings

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The appearance of fireproof coatings is very similar to that of ordinary paints. It is difficult to distinguish them from the appearance, and it is difficult to check the quality of fireproof coatings on site. In actual projects, fire control departments at all levels can identify them by the following methods:

Check whether the product has a qualified inspection report issued by a national fire quality inspection center, or you can check it online. At present, fireproof coatings implement the type approval system for fire protection products. The fireproof coatings sold on the market should have the national fire protection product type approval certificate and the type inspection qualification report.

According to national standards, in addition to meeting the fire resistance requirements, the fire performance of fire retardant coatings is divided into first and second grades. Under the specified experimental conditions, the first-class fireproof coating has a flame resistance time of not less than 20 minutes, and the secondary fireproof coating has a heat resistance time of not less than 10 minutes. Users should pay attention to the difference in the choice, to avoid the company shoddy, can not achieve the fire protection effect.

The on-site construction of fire-retardant coatings shall be based on the manufacturer's product packaging instructions. Generally, it is not required to be diluted with water. When painting, it should be divided into two or more times, and the amount of painting should be no less than 500 g/m2. When the fireproof coating is diluted with water or the amount of coating is insufficient, it will have a great impact on its fire performance. The fire department should strengthen the supervision of the construction site to prevent the construction company from cutting corners.

When the qualified fireproof coating is burned by a strong flame such as a blowtorch, it will foam and expand a lot, the surface will gather and bulge, and there will be no burning phenomenon within a few minutes, while the fake and shoddy fireproof coating will not foam at all, and a large amount of scattered will occur. In the case of slag, the wood substrate will also quickly burn and break.

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UPE plastic,full name UHMWPE (ultra high molecular weight polyethylene) is a kind of thermoplastic engineering plastic with excellent properties of linear structure, with a molecular weight of more than 1.5 million.mainly have  ESD UPE SHEET,CONDUCTIVE UPE.

Small density, good wear resistance, self - lubricity, impact resistance, corrosion resistance and so on.

 

Advantages:

1. Average molecular weight about 5,000,000 to 9,000,000;

2.The best abrasive assistance of all plastics , which 4 times higher than that of nylon 66 or teflon and 6 times higher than that of carbon steel;

3.Extremely high impact stength ,which is twice as high as PC ,5 times as high as ABS,it also retaines high toughness at liquid nitrogen temperature (-196'C);

4.Low friction coefficient ,lubricity is equal to that of Teflon ;

5.The best impact energy absorption value of all plastics ,with very good sound reduction effect ;

6.High chemical stability ,capable of resisting various types of corrosion and organic media within certain temperature and concentration range;

7.Strong adhensive resistance which is only second to Teflon;

8.UHMW-PE Plastic is safe , healthful and non-toxic and be can used in contact with food and drugs ;

9.Low density than any other thermoplastic ;

10.Excellent electrical insulation and static resistance ,good resistance to high energy radiation;

11.Moderate mechanical strength,stiffness and creep-resistant property'

12.Outstanding machining property ,very low water absorption .


 

 

Deficiencies:

Compared with other engineering plastics, UHMW-PE Plastic is resistant to heat resistance, stiffness and hardness, but can be improved by means of "filling" and "crosslinking".

From the point ofheat resistance, the melting point of UHMW-PE Plastic is approximately the same (136 ℃) and ordinary polyethylene, but because of its big molecular weight, melt viscosity high, so the processing difficulty is big.

 

Applications:

Papermaking industry : suction box boards ,scrapper,molding plate ,beating ,gear .

Mining industry : charging barrel ,abrasive and adhensive -resistant back lining for warehouses.

Chemical industry : acid pump ,fliter plate , worm gear ,bearing .

Food industry :packing machinery parts ,bottle guide ,screw .wear plate ,slide away ,stud weld ,roller and other transmission parts.

Tenxile industry : buffer board

Food processing industry : chopping block ,refrigerating plant

Wharf:anti-collision board

 

Specification: the thickness of UHMW-PE Plastic sheet material can be produced from 0.3mm to 1.9mm, the normal width is 600mm, the width can exceed 1200mm, and the length is not limited.
The thickness of plate can be produced from 2mm to 180mm, the usual specification of 2-10mm is 600mm* 1200mm, and the commonly used specification of 10-180mm is 1200*3080mm. UHMW-PE Plastic can also be customized according to requirements, and the width cannot exceed 1200mm, and the length is not limited.

Color: Black and white, can also be made another color, and the color order is 500KG.


Modified varieties: UHMW-PE Plastic can be added to the Glass Fiber, copper powder, and molybdenum disulfide enhancement plate according to customer's requirements.
Add antistatic agent to the permanent plate, the volume resistance value of 10 to the 6 to 9 power.
Add flame retardant to the flame retardant board from UL 94v-0 to HB combustion grade, and other modification requirements are required to customize various additional properties according to the actual use of the customer.

Product certification: most environmental certification reports and safety reports forraw materials, such as SGS report, CTI report, UL report, MSDS safety information, etc.

 

UHMW-PE Plastic Sheet

UHMW-PE Plastic Sheet,Color UHMWPE Sheet,Antistatic UHMWPE Plastic Sheet,Esd UHMWPE Plastic Sheet

Dongguan Noegem Plastic Products Co.,Ltd , http://www.noegempLastic.com