PP plastic, polypropylene, commonly known as "baijiao",Scientific name: polypropylene.
Description:
PP Plastic is a kind of semi crystalline material. It is more hard than PE and has a higher melting point. Due to the high crystallinity, the surface of the material stiffness and resistance to scratch characteristics very well. PP Plastic don't have the problem of environmental stress cracking.Polypropylene (PP Plastic) is a semi-crystalline thermoplastic.PP Plastichas high impact resistance, strong mechanical properties, resistance to many organic solvents and acid and alkali corrosion.
PP Plastic is widely used in industry and is one of the most common polymer materials.
Australian COINS are also made of polypropylene.
Polypropylene bonding:
K-720 is suitable for polypropylene PP plastic adhesion, suitable for large area plate lamination, high transparency, suitable for PP adhesion PP, PP adhesive PC, PP adhesive ABS,PP adhesive PVC, PP adhesive acrylic, PP sticky metal, PP stick wood.
K-7007 adhesion performance is roughly the same as k-720, light yellow and more economical.
K-620 is adhesive small area polypropylene PP glue, must be used with the k-650 treatment agent, the instant positioning, the strength is high.
Advantages:
1. Low density;
2. Heat resistance ;
3. Non deformation;
4. High stiffness;
5. High surface strength;
6. Good chemical stability;
7. Nontoxic and safe.
Disadvantage:
The main disadvantage of the fault polypropylene is that the high temperature rigidity is not enough, and the low temperature is brittle.
Poor environmental tolerance, outdoor use, easy to turn yellow and brittle.
Tensile strength of anisotropy, the products are easy to deform, continuous use of low temperature, high creep performance, and long - term load.
Poor printing performance.
Application:
1,Valve part, drinking water and sewage water pipe,
2,Sealing element, spraying carrier,
3,Corrosion-resistant trough and barrel, industrial applications that have acid and alkali-resistant requirement; wastewater and gas discharge equipment for industrial purpose,
4,Scrubbing tower, clean room, semiconductor plant and other related industrial equipment and machinery, food machinery and chopping board,
5,Electroplating process, toy part
Combustion characteristics: PP Plastic easy to burn, polypropylene from continue to burn after the fire, with the top of the flame is yellow, the bottom made in blue, with a small amount of smoke generated, burning melt dripping, and oil.
Specification: the thickness of PP sheet material can be produced from 0.3mm to 2mm, and the PP sheet material is of rolling material and width of 500-1000mm.
The thickness of the plate can be produced from 2mm to 200mm. The specification is 600*1200mm 1000*1000mm 1000* 2000mm. Other specifications can be customized as needed,and The diameter of the PP rod can be produced from 2mm to 250mm, the length is 1 meter, PP rod can be ordered to be more than 3 meters in length.
Color: white and black, other colors can be customized
Modified varieties: PP sheet have various enhancers and other auxiliaries can be added to make modified varieties, depending on the requirements
Storage methods:
Keep in tight, cool and dry place to ensure good ventilation
Product certification: most environmental certification reports and safety reports for raw materials, such as SGS report, CTI report, UL report, MSDS safety information, etc.
PP Plastic Sheet,Polypropylene Plastic Sheet,High Hardness PP Sheet,Non Deformation PP Sheet Dongguan Noegem Plastic Products Co.,Ltd , http://www.noegempLastic.com
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Reparation and replacement of smoothing agent Smoothing agent replacement and replacement
a. The smooth grease compensates for the interval because of the mechanical effect; the addition of aging and pollution; the smooth base filled in the bearing equipment will gradually lose its smooth function. Therefore, the smooth rank needs to be continuously compensated and updated. The composition, scale and speed of the bearing are different; the approximate interval of the smooth grease is compensated according to the demand of the working time. Others; when the bearing temperature exceeds 70 °C; the bearing temperature rises by 15 °C; Make up half of the interval. The double-sided closed bearing is now loaded with grease; “HRB†uses the standard smooth grease in these products; the total working temperature scale and other functions are suitable for the regular occasion; The amount also corresponds to the size of the bearing; the life of the grease can usually exceed the bearing life; except for special occasions; no need to make up for smooth grease. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
b. Smooth oil replacement cycle The replacement cycle of smooth oil is different depending on the application conditions and oil quantity; usually; when the working temperature is below 50 °C; when it is used in a good environment with less dust; once a year; when the oil temperature reaches At 100 ° C; replace it once every 3 months or less.
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Smoothing agent replacement and replacement
Source: China Bearing Network Time: 2017-09-28