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Product Name: Copolymer type PP materials have lower heat distortion temperature (100°C), low transparency, low gloss, low rigidity, but have greater impact strength.The strength of PP increases with increasing ethylene content.The Vicat softening temperature of PP is 150°C. The Vicat softening temperature of PP is 150°C. The Vicat softening temperature of PP is 150°C. The Vicat softening temperature of PP is 150°C. The Vicat softening temperature of PP is 150°C. Due to the high degree of crystallinity, this material has good surface stiffness and scratch resistance properties.PP does not suffer from environmental stress cracking. Typically, PP is modified by adding glass fibers, metal additives, or thermoplastic rubber.The flow rate MFR of PP ranges from 1 to 40.PP materials with low MFR have better impact characteristics but lower ductile strength. For the same MFR, the copolymer type is stronger than the homopolymer type. Due to crystallization, the shrinkage of PP is quite high, generally 1.8 to 2.5%. And the directional uniformity of shrinkage is much better than materials such as PE-HD. Adding 30% glass additive can reduce the shrinkage to 0.7%. Both homopolymer-type and copolymer-type PP materials have excellent resistance to moisture absorption, acid and alkali corrosion, and solubility. However, it has no resistance to aromatic hydrocarbon (e.g., benzene) solvents, chlorinated hydrocarbon (carbon tetrachloride) solvents, etc. PP also does not have oxidation resistance at high temperatures like PE.

Plate Classification

• Pure PP sheet

Small density, easy to weld and process, with superior chemical resistance, heat resistance and impact resistance, non-toxic, tasteless is the most environmentally friendly requirements of one of the engineering plastics. The main colors are white, microcomputer color, other colors can also be customized according to customer requirements. Applications: Acid and alkali resistant equipment.

• Polypropylene (PP) Extrusion Sheet

It is a plastic sheet made of PP resin added with various functional additives through extrusion, calendaring, cooling, cutting and other processes.

• Glass Fiber Reinforced PP Sheet

Glass fiber reinforced PP board (FRPP board): After 20% glass fiber enhancement, in addition to maintaining the original excellent performance, strength, rigidity, etc. are doubled compared with PP, and has good heat resistance, low temperature impact, corrosion resistance to arc, low shrinkage. Especially suitable for chemical fiber, chlor-alkali, petroleum, dyes, pesticides, food, medicine, light industry, metallurgy, sewage treatment and other fields.

PPH sheet, Beta (β)-PPH single side laminated nonwoven sheet. (β)-PPH products have excellent heat and oxygen aging resistance, long service life, and good mechanical properties. It has been successfully used in the production of plates, and the advanced technology is among the leading ones in China. These products can be used for filter plates and spiral-wound containers, for FRP winding liner plates, for storage, transportation and anti-corrosion systems in the petrochemical industry, for water supply, water treatment and drainage systems in power plants and waterworks, and for dust removal, scrubbing and ventilating systems in steel mills and power plants.

Characteristics and Uses

PP extrusion sheet has light weight, uniform thickness, smooth and flat surface, good heat resistance, high mechanical strength, excellent chemical stability and electrical insulation, non-toxicity, etc. PP sheet is widely used in chemical containers, machinery, electronics, electrical appliances, food packaging, pharmaceuticals, decoration and water treatment, etc. The practical temperature of PP sheet can reach 100 degrees.

Scope of Application

Acid and alkali resistant equipment, electroplating equipment, solar photovoltaic equipment, environmental protection equipment, wastewater, waste gas discharge equipment, washing tower, clean room, semiconductor plant and its related industrial equipment, is also the first choice of material for the manufacture of plastic water tanks, which PP thick plate is widely used in stamping plate, press pads and so on.

1. advertising signboards;
2. Recycling bins, including reusable recycling bins for various industries, fruit and vegetable packing bins, clothes storage bins, stationery bins;
3. industrial boards, including wire and cable outer wrapping protection, glass, steel plate, all kinds of articles outer wrapping protection, padding board, shelf, partition board, bottom board, etc;
4. protection board, cardboard, three clipboard protection construction of building materials in the era of gone, with the progress of the times and taste, to ensure that the integrity of the decorative design in the completion of the opening of the completion, should be given appropriate protection in order to maintain the operation of the economy, safety and convenience, and other building elevators, flooring before acceptance of the protection.
5. Electronic industry protection. Conductive packaging products are mainly used in IC wafers, IC packaging, testing, TFT-LCD, optoelectronics and other electronic parts of the packaging, the purpose is to avoid other charged items in contact with them, resulting in parts due to charge friction spark damage. There are also conductive, anti-static plastic plates, crates and so on. 　PP board can be used in addition to the above products, but also used in washing machine backplane, refrigerator insulation layer, frozen food, medicine, sugar and wine packaging. Can also use the hollow plate production line to produce PE hollow plate to supply urban construction, rural areas need to keep the greenhouse partition.

1. Mechanical cutting

Mechanical cutting is one of the common ways of cutting plates. This method mainly uses a cutting machine or punch press to cut the sheet through the action of mechanical force. The operation requires precise adjustment of the position of the cutter and the depth of cut to ensure accurate and smooth cutting. The advantage of mechanical cutting is that it is easy to operate, suitable for mass production and relatively low cost.

2. Laser cutting

Laser cutting is a high-precision method of cutting plates. It uses a high-power laser beam to irradiate the sheet, causing it to melt or carbonize locally, and then blow the melted material away from the sheet through airflow or mechanical force, thus realizing cutting. The advantages of laser cutting are high cutting precision, high speed and suitable for cutting complex shapes.

3. Thermal cutting

Thermal cutting is mainly to soften the sheet by high temperature, and then use mechanical force or blade to cut. This method is suitable for thicker plates. The advantage of thermal cutting is that it is suitable for different thicknesses of plates, but the operation needs to pay attention to the control of the temperature, to avoid overheating caused by the deformation of the plate.

When carrying out plate cutting, the following points should also be noted:

1. choose suitable cutting tools and equipment, according to the thickness and hardness of the sheet.
2. keep safe when operating, wear protective glasses and gloves to avoid splash injury.
3. make sure the surface of the plate is clean and free of impurities before cutting to improve the cutting quality.

The welding method of PP sheet mainly includes the following steps:

1. Preparation: Before welding, you need to make sure that the welding tools are functioning properly. Check whether the nozzle of the welding gun and the screws of the gun body are loose or off, and connect the power cord of the welding apparatus to ensure that the power supply is not loose.
2. .Pre-welding treatment: Wipe the PP sheet clean and make sure the welding area is dry and free of dust and grease. In addition, it is also necessary to chamfer the edges of the PP sheet.

Welding Sequence:

1. Use hot gas welding or a torch for welding. Hot gas welding can be done with an inert gas such as air or nitrogen; the gas must be dry and free of dust and grease.
2. Clamp the two PP sheets with a fixture to ensure the correct welding position. When welding, hold the welding tool in one hand and press the welding rod into the weld area with the other hand.
3. The welding torch and the object to be welded make an angle of 45 degrees and push the welding rod at a constant speed, while the welding torch moves along the connecting axis in the form of a pendulum to ensure the quality of welding.
4. During the welding process, the welding pressure needs to be controlled to avoid too light or too heavy, so as not to affect the welding effect.

After welding: after welding is completed, first put the welding torch on the workbench, cut off the power supply, clean up the workplace, and finally put the welding tools and materials back to their original places.

Things to keep in mind during the welding process include:Ensure that the welding electrode is the same as the base material to obtain the best weld strength.
Adjust the temperature of the welding torch between scale 3-4 to avoid too high or too low temperatures, which may affect the quality of the weld.
Weld quality is dependent on the welder’s skill and ability to control welding pressure.