Warm Global Customers
With China Plastic Machinery
With China Plastic Machinery
PE sheet, or polyethylene sheet, is a highly crystalline, non-polar thermoplastic resin. The appearance of the original HDPE is milky white, its thin cross section is translucent, the film state is transparent, and the block state is opaque with strong light scattering.
Polyethylene sheet is odorless and non-toxic, with excellent corrosion resistance, water vapor resistance and low temperature resistance (the lowest operating temperature can reach -70¡æ~-100¡æ). High-density polyethylene sheet (HDPE sheet) has good heat resistance (melting point is about 130¡æ) and cold resistance, and also has high rigidity and toughness, and good mechanical strength.
PE sheet has excellent resistance to most domestic and industrial chemicals. Certain types of chemicals can cause chemical corrosion, such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene) and halogenated hydrocarbons (carbon tetrachloride). The polymer is non-hygroscopic and has good water vapor resistance, and can be used for packaging purposes. HDPE has good electrical properties, especially high insulation dielectric strength, making it very suitable for wires and cables. Medium to high molecular weight grades have excellent impact resistance, both at room temperature and at low temperatures of -40F. The unique characteristics of various grades of HDPE are the proper combination of four basic variables: density, molecular weight, molecular weight distribution and additives. Different catalysts are used to produce customized special performance polymers. These variables are combined to produce HDPE grades for different purposes; achieving the best balance in performance. It has good chemical stability and can resist corrosion from most acids, alkalis, organic solutions and hot water. It has good electrical insulation.
It has the characteristics of high toughness, tensile strength, corrosion resistance, low temperature resistance and good wear resistance. It is widely used in chemical, clothing, packaging, food and other fields. It can be filled, flame retardant, modified, embossed and frosted on the surface. LDPE (high pressure low density polyethylene) is softer in nature, has lower mechanical strength and lower melting point, and is suitable for making films and cable insulation layers. HDPE (low pressure high density polyethylene) is more rigid, has higher mechanical strength and higher melting point. Suitable for making hollow products, injection molding products, etc., widely used in the manufacture of ice hockey court wall panels. Thickness: 1-350mm Color: natural color, white, blue, yellow, gray, black, green, etc.
HDPE board, rod
The PE sheets produced are all produced with imported equipment and unique internal stress elimination technology, and new PE raw materials are used without adding any recycled materials. After years of unremitting innovation and improvement, the bottom cutting eliminates the problems of sheet deformation, bubbles, easy breakage, etc.
Thickness (H) x height (H): 0.2mm-3mmx1200mm Other specifications can be customized
Thickness (H) x length (L) x width (W): 2mm-350mmx6000mmx2000mm Other specifications can be customized
Dimensions: rods
Diameter (§¶) x length (L): 15mm-350mmx1000mm Other specifications can be customized
Dimensions: pipes
Diameter (§¶) x length (L): 20mm-350mmx1000mm Other specifications can be customized
HDPE board (high-density polyethylene board) has a melting point of about 130¡ãC and a relative density of 0.941~0.960. It has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties and resistance to environmental stress cracking are also good. Melting temperature 220~260C. For materials with larger molecules, the recommended melting temperature range is between 200~250C.
Chinese name: Polyethylene
English name: POLYETHYLENE
English name 2: PE
Product specifications: thickness x width x length 1-100mmX1000mmx2000mm
Although adding PP can increase the strength of PE board, it will cause other properties to decrease quickly.
Talc can be filled. Talc is in the form of flakes, so it has higher rigidity, dimensional stability and heat resistance, and has a good reinforcement effect.
After filling with talcum powder, the product is prone to spots. The solutions are:
1. The filling ratio should not be too high, about 20%.
2. Modify the talcum powder and add titanate coupling agent and compatibilizer, such as the acid-rod graft of PP or PE corresponding to the resin, which can greatly increase the filling amount and ensure better compatibility between HDPE and filler. At the same time, suitable lubricants and processing aids are also very important.
The main ingredients of the blister PE plastic board formula: LDPE, ZnSt, HDPE, AC foaming agent, DCP, CaCO3.
LDPE: Low-density polyethylene, the main component of blister PE board, has the characteristics of monomer polyethylene being non-toxic, flammable, and easy to oxidize, not easy to absorb water, good conductivity, and good insulation. It is often used as soft plastics such as wires and cables, plastic films, etc.
ZnSt: Zinc stearate, metal soap lubricant, polyolefin plastics mostly use stearate lubricants because it has the characteristics of easy availability of raw materials, low cost, non-toxic and pollution-free. Generally speaking, the zinc content in zinc stearate determines whether the lubricant can be well dispersed in the plastic. The purer and more saturated the zinc stearate, the more heat-resistant it is and the easier it is to disperse.
HDPE: High-density polyethylene, with similar properties to low-density polyethylene resin.
AC foaming agent: azodicarbonamide. The foaming effect of the foaming agent is determined by the gas emission. AC foaming agent has stable performance, is green and environmentally friendly, and has cheap raw materials. It is widely used in various polyolefin products such as slippers, leather, and sound insulation materials. It takes a high temperature to decompose the AC foaming agent, and high temperature will cause the plastic products to be degraded and affect the performance of the products.
DCP: Diisopropylbenzene peroxide, a cross-linking agent, an initiator for polyolefin polymerization. DCP can change the structure of rubber plastics, making PE boards more resistant to high temperatures, wear and oxidation.
CaCO3: The most commonly used plastic filler, divided into light calcium and heavy calcium. Light calcium is in fierce competition and developing rapidly, but light calcium is provided to enterprises as agglomerates, and it is difficult to disperse it in plastic products when directly applied.
Medical instrument parts, seals, cutting plates, sliding profiles. Widely used in chemical, machinery, chemical, electric power, clothing, packaging, food and other industries. Widely used in gas transmission, water supply, sewage discharge, agricultural irrigation, mining fine particle solid transportation, as well as oil fields, chemicals and postal and telecommunications, especially in gas transmission.
PE insulation board is made of polyethylene plastic particles foamed, with excellent sound absorption and insulation, anti-water vapor penetration and gas flow cutoff capabilities, low water absorption and low thermal conductivity.
Rubber-plastic sponge insulation material is a soft high-grade insulation and energy-saving material made of excellent nitrile rubber and polyvinyl chloride as the main raw materials, with various high-quality auxiliary materials, and foamed by special process. It does not contain chlorofluorocarbons.
This product has excellent properties such as softness, bending resistance, cold resistance, heat resistance, flame retardancy, waterproofness, low thermal conductivity, shock absorption, and sound absorption. It can be widely used in central air conditioning, construction, chemical industry, medicine, textile and other industries.
Drinking water and sewage pipes, hot water pipes, transport containers, pump and valve components, medical equipment components, seals, cutting boards, sliding profiles. It is widely used in chemical industry, machinery, electricity, clothing, packaging, food and other industries.
When manufacturing PE sheets, attention should be paid to the selection of raw materials and construction technology.
The raw materials for the manufacture of PE sheets are inert molecular raw materials, and the fluidity of the raw materials is poor. This has brought a little trouble to the manufacture of PE sheets, so the selection of raw materials for the manufacture of PE sheets is very important. In order to change the problem of poor raw material fluidity causing the difficulty of punching and the increase of gaseous substances, it is necessary to select raw materials with some lubricants added when selecting raw materials. The lubricants mainly include stearic acid and salts. The PE sheet produced in this way has uniform material and no bubbles.
In terms of construction techniques, better quality PE sheets can be obtained by improving the construction process. The main methods to improve the process are to grasp the amount of feed, measure the amount of material needed in advance, do not have too much or too little material, and adjust the material amount for PE sheets to a higher level. It is best to use high-pressure and fast injection methods for production, so that better sheets can be obtained.
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