Waa maxay faraqa u dhexeeya tuubooyinka PE iyo tuubooyinka HDPE?

The difference between Tubooyinka HDPE and PE pipes is a question that is often asked. Waxay u muuqataa mid fudud, laakiin dad yar ayaa si cad u sharaxaya. Here we will systematically introduce it to you.

PE pipes are Polyethylene plastic pipes. Sida nooca aasaasiga ah ee caag ah, PE has excellent resistance to most household and industrial chemicals. Common plastic bags, cling film, iwm. are all made of PE.

PE pipes as a whole can be classified into three types: tuubooyinka polyetylen cufnaanta hoose (Tuubooyinka LDPE), tuubooyinka polyetylen cufan dhexdhexaad ah (Tuubooyinka MDPE), iyo tuubooyinka polyetylen-ka cufnaanta sare leh (Tubooyinka HDPE).

1. Low density polyethylene (abbreviated as LDPE)

Low-density polyethylene is generally produced by high-pressure polymerization with a density of 0.9910 -0.925g/cm³. The molecular structure of low-density polyethylene is a linear macromolecule with many side chains. The side chains of different lengths on the main chain affect the regularity of the macromolecule arrangement, and the stacking is not tight, which hinders the crystallization of polyethylene. Sidaa darteed, the crystallinity is 55% -65%. Low-density polyethylene has a low melting point and a soft texture. Silsilada dhinaca dheer waxay siinaysaa viscosity hoose ee heerarka sare ee xiirid inta lagu jiro habaynta iyo xoog dhalaalid sare inta lagu jiro iskala, making it very suitable for the blown film process and mainly used in the production of agricultural films, heavy packaging films, iwm.

2. Medium-density polyethylene (MDPE gaaban)

Medium-density polyethylene (MDPE) is controlled in density by A-olefin copolymerization at medium and low pressures using an efficient catalyst

(0.926-0.940q/cm3), leh crystallinity ah 70%-80%. Sababo la xiriira silsiladaha dhinac ee tirada badan iyo kuwa dhaadheer, density and crystallinity decrease, medium-density polyethylene has better flexibility and low-temperature properties, and its tensile strength, qallafsanaan, thermal properties, iwm. are inferior to those of high-density polyethylene. Due to the fact that copolyolefin can increase the intergranular linking chains of the crystal sheets of medium-density polyethylene, its resistance to slow cracking and long-term retention of mechanical strength are greatly improved compared to LDPE. Medium-density polyethylene can be used in the production of pressure pipes, tuubooyinka gaarsiinta, various containers and packaging films.

3. High-density Polyethylene (HDPE gaaban)

Cufnaanta sare ee polyetylen (HDPE) is produced by a low-pressure polymerization process, is linear, has a density of 0.94-0.965q/cm ³, has a crystallinity of 80%-95%, and is a white powder or granule. Compared with low-density polyethylene, it has fewer other sub-chains, a nearly linear structure, regular and close-packed molecules, and thus has high crystallinity, high density, relative molecular mass ranging from hundreds of thousands to hundreds of thousands, iyo tiro cidhiidhi ah oo ah heerka qulqulka dhalaalka. High density polyethylene has high rigidity and toughness, good mechanical strength and heat resistance, as well as good resistance to deep agents and steam penetration. High-density polyethylene has the lowest permeability among all types of polyethylene, the strongest corrosion resistance, and good rigidity, and is mainly used in the production of various pressure pipes, injection molded products, iwm.

HDPE pipe is a type of PE pipe, but the performance of HDPE pipe is superior to that of ordinary PE pipe, which we can summarize as follows:

1, Different pressure resistance:

• HDPE pipes must be able to withstand certain pressures, and usually a high molecular weight and good mechanical properties PE resin is chosen, such as HDPE resin, which is nine times stronger than ordinary polyethylene pipes (Tuubooyinka PE);

2, the wear resistance is different

• Ka mid ah dhammaan balaastikada injineernimada, HDPE has the best abrasion resistance. Inta uu sareeyo miisaanka kelli, the more wear-resistant the material is, even more than many metal materials (sida birta kaarboonka, bir aan lahayn, naxaas, iwm.) the abrasion resistance of common PE is only one-tenth of that of HDPE;

3, Different uses

• Tubooyinka guud ee PE (tuubooyinka polyetylen cufan dhexdhexaad ah) waxay ku habboon yihiin qaadista gaasta macmalka ah, gaaska dabiiciga ah, liquefied petroleum gas, while low-density polyethylene pipes are flexible tubes;
• Tubooyinka HDPE (tuubooyinka polyetylen cufnaanta sare) Inta badan waxaa loo isticmaalaa qaadista gaaska dabiiciga ah, municipal engineering water supply systems, indoor water supply systems of buildings, outdoor buried water supply systems and buried water supply systems in residential areas and factories, old pipeline repair, water treatment engineering pipeline systems, iyo tuubooyinka biyaha warshadaha ee jardiinooyinka, irrigation and other fields.
• Tubooyinka HDPE can be used as a replacement for traditional steel pipes and polyvinyl chloride drinking water pipes, which ordinary PE pipes cannot.

4，Different connection methods:

• Tubooyinka guud ee PE, especially LDPE and MDPE, are often connected using mechanical fittings or quick-connect joints, which are convenient for flexible tubing and low-pressure applications.
• Tubooyinka HDPE, on the other hand, are widely recognized for their compatibility with heat fusion technology. Butt fusion and electrofusion create a seamless joint that is as strong as the pipe itself, ensuring a completely leak-proof system for high-pressure water and gas transmission.

5，Cost and economic value:

While general PE materials are generally cheaper and widely used in packaging and low-stress environments, HDPE pipes offer a higher initial investment but deliver exceptional long-term value.,

Due to their superior durability, lower maintenance needs, and extended lifespan, HDPE pipes significantly reduce replacement and operational costs over decades of use, making them highly cost-effective for major infrastructure projects.

PE pipe and HDPE pipe connection methods comparison including mechanical fittings and heat fusion technology

Alaab-qeybiye

Hal qayb oo ka mid ah Luoyang Datang Energy Tech Co., Ltd., Ltd. waa shirkad hormood ah oo Shiinees ah oo ku takhasustay tuubooyinka balaastikada ah iyo qalabyada tayada sare leh. Ku qalabaysan khadadka wax soo saarka otomaatiga ah ee casriga ah oo ay taageerayaan koox ka mid ah 200 xirfadlayaasha, Waxaan bixinaa khad wax soo saar ballaaran oo ka kooban 150 types of plastic pipes and fittings designed for water supply and drainage systems, gudbinta gaaska, iyo hababka kululaynta sagxada. Badeecadahayada ugu muhiimsan waxaa ka mid ah tuubooyinka PVC iyo qalabyada, PE (HDPE) Tuubooyinka iyo Qalabyada, Tuubooyinka PPR iyo Qalabyada, iyo PEX Dabaqa Tubooyinka kululaynta.

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