There are so many kinds of shoes sole developed already, and they have quite different characteristics. Here we would like to make a definition for them and help you understand their characteristics. MOR EVA FOAM is most focus on EVA shoes sole and MD shoes sole.

1, leather soles:
Soles, leather soles can automatically breathe and drive the foot breathe good air permeability, not stuffy feet, able to automatically release the absorbed sweat to keep feet dry. Leather soles to leather-based, higher prices. The advantage of easy stereotypes, the same type, fit, good elasticity, can reduce the impact of fatigue is not easy, ventilation, absorb moisture, and at the same time easy processing, easy to show the beauty of type. The hard texture impenetrable, soaked in water, oil easy warpage or rotting. Its main features:
① have good thermal insulation properties guarantee the foot in the shoe suitable temperature
② light weight at 0.95 to 1.05 g per square centimeter of weight, is exactly the same as the density of water. Waterproof and moisture released when no longer wet shoes, shoes in a comfortable state.
③ unique three-dimensional fiber structure, the sole 180 degree bend not break. Can adapt quickly to the foot shape, can effectively support ground impact more effectively protect the foot soles of other materials than the same thickness.
2, rubber sole (RB):
RB is the abbreviation of the the English rubber (rubber); hot press molding, sub-natural rubber and recycled rubber. Heavy oil resistant, molded bottom must fit surface grinding coarse easy to shorten, upon heating, color inconsistencies.
Advantages: good wear resistance, non-slip, flexible, easy to break, good flexibility, good extended contraction stability, good hardness, bending, waterproof.
Disadvantages: heavy, easy to spit cream (which is quality problems) and difficult to corrosion (environmental issues); hard, easily spike; permeability, hygroscopicity bad, fear of oil soaked, contact with oil should not be in the automobile service stations, etc. places to wear.
※ rubber foam
The lighter weight than the rubber sole, rubber taste, time, the surface with your fingers rebound obvious than the average soles wear resistance difference.
※ high-pressure polyethylene rubber sole
And soles, rubber and plastic of the main component of the high-pressure polyethylene and rubber smell.
Raw rubber-soled: heavy, expensive, and not oil resistant, not heat. Easy to change.
3, Polyurethane bottom (PU):
Polyurethane polyurethane short, the English name is polyurethane, which is a polymer material, divided into two kinds of oil-based and water-based foam by the A / B / C polyester material. Is a new kind of organic polymer materials, known as the “fifth largest plastic”, used for the manufacture of high-grade leather shoes, sports shoes, sneakers.
Advantages: low density, soft, flexible, comfortable and easy to wear; good resistance to oxidation, excellent wear resistance, resistance to bending performance, high hardness; excellent shock absorption, slip resistance; better temperature performance ; good chemical resistance; corrosive environmentally friendly, easy to fold.
Disadvantages: absorbent, easy yellowing, easy to break, elongation is poor, not water, at the end of perishable, poor ventilation.
4, EVA bottom:
Ethylene Vinyl Acetate-vinyl acetate copolymer, a polymer material. Commonly used in jogging, walk, casual shoes, the foot training shoes in the bottom. Light weight, ease of processing, do not wear, not oil resistant.
Advantages: lightweight, good elasticity, good flexibility, easy to fold, with excellent coloring, suitable for all kinds of climate.
Disadvantages: easy to absorb water, and not likely to corrode or bad for the environment, easy dirty.
5, MD at the end:
Collectively the MODEL or PHYLON, dragon, is a secondary high pressure EVA molded products. MD soles which must contain EVA the the MD also called end PHYLON in the end. MD = EVA + RB or EVA + RB + TPR some shoes RB + PU.
Advantages: lightweight, flexible, thin appearance, softness good; easy to clean; hardness, density, tensile, tear, elongation good.
Disadvantages: difficult to corrosion adverse environmental protection, high temperature easy to fold, easy to shrink; poor durability, use its shock-absorbing force will reduce over time, and poor ventilation.
6, TPR bottom:
The TPR could have been a broad generic including TPV, SEBS, SBS, TPO, TPU, EVA and other products. TPR soles mainly refers to the the SBS modified shoe commonly known (belonging to a TPR material application). TPR shoe Compound thermoplastic body SBS-based production of a new polymer shoe materials, the performance of rubber but also by the thermoplastic processing and recycling, with ordinary plastic molding machine, injection molding, extrusion molding. , blow molding made of rubber products. TPR pellets hot melt after the injection molding, molding elements to the launch of the movement.
Advantages: easy shaping, cheap; a lightweight, comfortable, high elasticity, easy to stain, good ventilation, high strength, especially excellent low temperature resistance, high coefficient of friction, the clutching and strong.
Disadvantages: material weight, wear bad (not wear), poor flexibility, poor bending (not folding), shock-absorbing ability, poor ventilation.
7, TPU bottom:
Partial thermoplastic polyurethane elastomer (Thermoplastic Polyurethane), it is by the diisocyanate and macromolecular polyol, chain extender common reaction of the linear polymer material, is a new environmentally friendly materials.
Advantages: have excellent mechanical strength, abrasion resistance, oil resistance and flex resistance, especially abrasion resistance is most prominent, good appearance, and generous upscale.
Disadvantages: heat resistance, hot water resistance, resistance to compression is poor, easy to turn yellow appearance, processing easy to stick mold, hard, heavy, poor ventilation.
8, PVC bottom (imitation of sole leather):
PVC polyvinyl Chloride, qualities of light yellow translucent and shiny. The inflection at will appear bleaching.
Advantages: most of the cheaper, oil resistance, abrasion resistance, good insulation properties.
Disadvantages: non-slip performance is poor, poor texture, not cold, not folding, poor ventilation.
9, TR bottom:
TR shoe materials TPR on the basis of new and improved products, the TPE rubber synthetic materials, more excellent indicators of performance; thermal injection molding process, the movement of molecules Bowls like molding. Tricks and more appearance, feel good, Yan color, finish, high technical content, and can be 100% recycled, soles of the eco-friendly material.
10, faux leather bottom:
Is a relatively typical of the rubber, and with a highly elastic material, the main ingredient to the rubber as the base material, by adding a 10% to 30% of the high styrene, imitation leather sole leather performance produced. Similar appearance with natural sole leather grain pattern, its products made of lightweight, clear lines; wearing light, comfortable, and there is no sound, non-slip, wear-resistant soles, has good flexibility, but also has The higher hardness and rigidity, and its performance is very similar to natural leather. Although not have an air permeability of natural leather, hygroscopic, but it also has the advantage of not afraid of water.
11, BPU
A new modified polyurethane (PU), with environmental protection, low-density (ultra light weight), surface structure (smooth surface) thick-skinned, good toughness, not easy to break, good weather resistance. Alternative EVA outsole, EVA waterproof, inflatable PVC at the end stage, Clogs, PVC foam base, such as Taiwan.
This modified polyurethane the imitation wood materials very light, has a beautiful wood grain, temperature, and degradation characteristics of adjustable, is the new green materials.
12, beef tendon (Tianjin) at the end:
Thermoplastic elastomer bottom, a pale yellow translucent sole, so named because of their color and sex seemed beef tendons. The tendon end describe and tendon as strong, but the artificial tendon at the end the, also known as thermoplastic elastomer rubber sole. (First from rubber tendon was this color and other materials even do sandals the generic term Dichotomanthes color. Said Dichotomanthes initially refers to natural rubber, after the evolution of color card call.)
Tendon at the end can be done with a rubber, can also be done with a plastic, thermoplastic rubber (TPR) production is the most convenient. This shoe is beautiful in appearance, but also has good flexibility and abrasion resistance, wear comfortable walking without sound, soles of shoes, sneakers and daily life of enclosed material.
Rubber tendon: a long time to whiten the surface with a layer of mist secretions; blade cut a little smudge fire ignited residual white solid little difficult dripping burning, and rubber stench slightly smoky. (Now technology development of some rubber Dichotomanthes mist the secretions might not appear.)
The the TPR Dichotomanthes: with the knife a little fire ignited, burning black smoke mixed with a little gray, kind of dripping glue smell burning time is a little faster than the rubber tendon solid residues little black coke.
13, melamine bottom:
Melamine bottom (also known as come board Ledo rods and rubber imitation leather bottom, etc.), in fact, also a rubber sole, just a different processing methods. Melamine bottom compared cheaper.
Melamine end of the main component of the rubber, fine texture, abrasion resistance, twists and turns. Are infinite, the general width of 1 meter, from rolling machines came out and cut into 2 meters long. The red knife punching, again edging color, the general thickness between 3-5mm, depending on the needs of.
14, raw rubber-soled:
The raw rubber without plastic, kneading the rubber is referred to, is the most fundamental ingredients for the manufacture of plastic materials, including natural rubber and synthetic rubber. Raw rubber-soled wear our daily said the raw rubber-soled actually cooked rubber-soled, the raw rubber after the treatment, but look like raw rubber., Is our conventional kind of error Bale.
Poor plasticizing effect of a raw rubber floor lower, hardness, density, easy to wear and breakage; cooked gum opposite characteristics, good wear resistance and toughness. The cooked glue versatile, such as automobile tires; raw rubber only for the production of low-grade daily necessities, such as slippers.
15, PC at the end:
Polycarbonate (PC) resin is an excellent engineering thermoplastics with outstanding impact resistance, creep resistance and dimensional stability, heat resistance, low water absorption, non-toxic, excellent dielectric properties, is one of five only products with good transparency in the engineering plastics, is also the fastest growing in recent years, general engineering plastics.
PC bottom with good weather resistance, the appearance of the United States, impact resistance, high transmittance, plasticity.
16, ABS bottom:
Acrylonitrile Butadiene Styrene, acrylonitrile – butadiene – styrene copolymer.
ABS plastic opaque appearance of pale ivory, non-toxic, tasteless, both tough and hard, just the characteristics, slow burning, yellow flames, black smoke and burning plastic softening after charred issue special cinnamic odor, but no molten drip phenomenon.
With excellent overall performance, excellent impact strength, good dimensional stability, good electrical properties, abrasion resistance, chemical resistance, dyeability, molding and machining. Disadvantages: low thermal deformation temperature, flammable, poor weather resistance.
17, PE bottom:
PE plastic (polyethylene), English name: Polyethylene.
Excellent corrosion resistance, electrical insulating properties (especially the high-frequency insulation), rigidity, hardness and high strength, water absorption, and have good electrical properties and radiation resistance.
PE bottom softness, elongation, impact strength and good permeability; resistance, fatigue, wear and corrosion resistance can be better.
18, PP bottom:
PP plastic (polypropylene), English name: Polypropylene.
Is a high density, non-side chain, a linear polymer of high crystallinity with excellent overall performance. When not colored white translucent, waxy; lighter than polyethylene. Transparency than polyethylene rigid than polyethylene.
PP soles density, strength, stiffness, hardness, good heat resistance; have good electrical properties and high-frequency insulation from humidity, corrosion. But brittle at low temperatures, do not wear, easy to aging, easy to break down under certain conditions.
19, SBR bottom:
SBR (styrene butadiene rubber) based on butadiene and styrene as a main monomer by the copolymerization reaction is the synthesis of polymer of elastomeric material, of uniform quality and purity, little mixing of impurities. Can be dissolved in an organic solvent such as benzene, toluene, gasoline, and chloroform. SBR of unsaturated double bonds in the molecule with the vulcanizing agent is formed by the substitution or addition reaction, a crosslinked mesh structure, having a high physical and mechanical properties by the reinforcement of the reinforcing agent of the SBR vulcanizates.
Styrene-butadiene rubber vulcanization slow, but the the vulcanized flatness is not easy overcure, with the excellent performance of anti-aging, heat, abrasion.
20, cork, wood bottom
21 other categories:
SBR, TPR, ABS, and of PVC / EVA / PU material back mixed materials; flax, wool.

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