Shoe Material Knowledge Of Shoe Sole Material Inventory

< p > 1, dermis < a target= "_blank" href= "//www.sjfzxm.com/" > shoes < /a > bottom: leather sole is a sole that can automatically breathe and drive feet to breathe. It has good air permeability, no stuffy foot, and can release the sweat absorbed automatically to keep the feet dry.

Leather shoes are mainly made of cowhide and the price is higher.

Its advantages are easy to set, changeless, good fit and good elasticity. It can reduce impact and not fatigue, ventilate, absorb moisture and so on. At the same time, it is easy to process.

It is hard to be punctured, but is easily warped or rotted after being soaked in water or oil.

Its main characteristics are: < /p >

< p > 1) has good thermal insulation to ensure that the appropriate temperature in the shoe is less than /p.

< p > 2) light weight, weight of 0.95 to 1.05 grams per square centimeter, just the same as water density.

It can be waterproof and release moisture when the < a href= "//www.sjfzxm.com/news/" > shoes < /a > no longer moist, to ensure that the shoes are in a comfortable state.

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< p > 3) unique three-dimensional fiber structure, soles do not break at 180 degree bending.

It can quickly adapt to the foot shape, effectively support the impact of the ground, and protect feet more effectively than other materials and shoes with the same thickness.

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< p > 2, < a href= "//www.sjfzxm.com/news/index_c.asp" > rubber bottom < /a > (RB):RB is the abbreviation of English Rubber (rubber); hot compression molding, divided into natural rubber and reclaimed rubber.

It is heavy and oil resistant. When molding the bottom, it must be rough on the bonding surface. It is easy to shorten when heated, and the color is not consistent.

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< p > advantages: good abrasion resistance, skid resistance, elasticity, no breakage, good softness, good elongation, stable shrinkage, good hardness, good bending property and waterproof.

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< p > disadvantages: heavier, Yi Tushuang (quality problems), not easy to corrode (environmental problems); not hard, easy to be penetrated; air permeability, hygroscopicity is not good, afraid of oil immersion, should not be worn at the gas station and other oil contacts.

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< p > rubber foam: lighter than the bottom of the rubber, with a rubber smell. When the fingers are on time, the surface rebounding is more obvious than the general sole, and the wear resistance is poor.

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< p > high pressure polyethylene rubber sole: high pressure polyethylene and rubber flavor main soles, rubber and plastic.

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< p > raw rubber: heavy, expensive, non oil resistant and heat resistant.

Variable colors.

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< p > 3, polyurethane bottom (PU): polyurethane is the abbreviation of polyurethane, the English name is polyurethane, it is a kind of polymer material, it is made of A/B/C polyester material, and it has two kinds of oil and water.

It is a new organic polymer material. It is known as "the fifth largest plastic" and is used to produce high-grade leather shoes, sports shoes and travel shoes.

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< p > advantages: low density, soft texture, good elasticity, comfortable and light wearing, good oxidation resistance, excellent abrasion resistance, flexural resistance, high hardness, excellent shock absorption and skid resistance, better temperature resistance, good chemical resistance, easy corrosion, environmental protection, and easy to wrinkle.

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< p > disadvantages: strong water absorbency, yellowing, easy to break, poor elongation, no water resistance, bottom perishable and poor air permeability.

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< p > 4, EVA bottom: Ethylene Vinyl Acetate- vinyl acetate copolymer, polymer material.

It is commonly used in jogging, slow walking, < a href= "//www.sjfzxm.com" > casual shoes < /a > training shoes soles.

Light weight, easy to process, no wear resistance, no oil resistance.

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< p > advantages: light weight, good elasticity, flexibility, wrinkle free, excellent coloring, suitable for all kinds of climates.

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< p > disadvantages: easy to absorb water, hard to corrode, environmentally friendly and easy to dirty.

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< p > 5, MD bottom: MODEL or PHYLON collectively referred to as the flying dragon. It belongs to the two high-pressure molding product of EVA.

MD soles must contain EVA, and the bottom of MD is also called PHYLON bottom.

For example, MD=EVA+RB or EVA+RB+TPR, and some shoes are RB+PU and so on.

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< p > advantages: lightweight, elastic, fine appearance, soft degree, easy to clean, hardness, density, tensile force, tear and elongation.

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< p > disadvantages: it is not easy to corrode and is unfavorable to environment protection. It is easy to wrinkle and shrink easily at high temperature, and its durability is poor.

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< p > 6, TPR bottom: TPR was originally a generalized term, including TPV, SEBS, SBS, TPO, TPU, EVA and other products.

TPR soles are commonly referred to as SBS modified shoe materials (belonging to the application of TPR materials).

TPR shoe special material is a new type of polymer shoe material which is mainly produced by thermoplastic SBS. The properties of rubber can also be processed and recycled according to thermoplastic plastics. It can be made of rubber molding products by means of injection molding, extrusion molding and blow molding.

When the TPR pellets are melted and molded, the molecules move in the form of emissivity.

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< p > advantages: easy to shape, cheap, light, comfortable, high elasticity, easy to stain, breathable, high strength, especially low temperature resistance, high friction coefficient, strong grip.

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< p > disadvantages: material is heavy, wear is poor (not wearable), soft degree is poor, bending is poor (no folding), shock absorption ability is poor, air permeability is poor.

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< p > 7, TPU bottom: Thermoplastic thermoplastic elastomer (Polyurethane), which is a linear polymer material produced by reaction of diisocyanate and macromolecule polyols and chain extender, is a new environmental protection material.

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< p > advantages: excellent mechanical strength, wear resistance, oil resistance and flexural resistance, especially wear resistance is the most outstanding, good appearance, generous high-end.

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< p > disadvantages: heat resistance, hot water resistance, compression resistance is poor, appearance is yellow, easy to mold in processing, hard, heavy, poor ventilation.

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< p > 8, PVC bottom (imitation leather): PVC polyvinyl Chloride, its natural color is yellow, plucent and glossy.

Albinism occurs at inflection points.

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< p > advantages: most are cheaper, oil resistant, wear-resistant and good insulation.

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< p > disadvantages: poor skid resistance, poor texture, no cold resistance, no folding resistance and poor ventilation.

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< p > 9, TR bottom: TR sole material is a new product modified on the basis of TPR. It is a synthetic material of TPE and rubber, and the product has better performance of various indicators. When hot injection molding is processed, the molecules are rolled in ball shape.

It has many features such as many appearance, good handle, bright color, high gloss and high technology content, and it can be recycled 100%. It belongs to environmental protection type < a href= "//www.sjfzxm.com > shoe sole material < /a >.

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< p > 10, imitation leather sole: it is a typical rubber and plastic material with high elasticity. The main components are rubber based, adding 10% to 30% high styrene to imitate the properties of leather.

Its appearance is similar to that of natural leather. It has a grain pattern. Its products are light and clear, and it is light and comfortable when worn. It has no noise, no slip and wear resistance. This sole has good elasticity and high hardness and rigidity. Its properties are similar to natural < a target= "_blank" href= "//www.sjfzxm.com/" > leather < /a >.

Although it does not possess the breathability and moisture absorption properties of natural leather, it also has the advantage of not being afraid of water.

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< p > 11, BPU: it is a new type of modified polyurethane (PU). It has the advantages of environmental protection, low density (light weight), thick skin surface (smooth surface), good toughness, no breakage, and good weather resistance.

It can replace EVA big bottom, EVA waterproof platform, blowing PVC bottom platform, wooden shoe, PVC foam bottom platform, etc.

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< p > this modified polyurethane imitation wood material is very light, with beautiful wood grain, temperature resistance, and adjustable degradation characteristics. It is a new green environmental protection material.

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< p > 12, beef gluten (Jin) bottom: Thermoplastic elastomer bottom, a light yellow plucent sole, named for its color and character like beef tendon.

The bottom of the ox tendon is described as strong as the beef tendon, but the bottom of the beef tendon is made artificially, also called thermoplastic elastomeric rubber sole.

(first from the rubber band, when the sandals were used to connect the color and other materials together, it was commonly called "ox tendon".

It can be said that ox tendon first refers to natural rubber, and later evolved into color card calling.

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< p > the bottom of the beef tendon can be made of rubber or plastic, and the TPR is the most convenient.

The sole has beautiful appearance, good elasticity and abrasion resistance, comfortable wearing and silent walking. It is a good shoe sole for tourist shoes and daily life shoes.

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< p > Rubber ox tendon: for a long time, there will be a layer of foggy secretion on the surface of the rubber surface. A small amount of white solid will be ignited with a knife after burning with a blade. It is hard to drop when burning, and there is a little black smoke in the rubber odor.

(now technology development some rubber ox rib haze secretion may not appear.

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P > TPR ox tendon: a little fire is ignited with a knife, and the black smoke is mixed with a little grey green, a kind of drop phenomenon, the smell of glue, a little bit of burning time faster than the rubber reinforcement, and a little black coke solid.

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< p > 13, Mei Ai Di: Mei Ai Di (also known as Lai board, Lai multi bar and rubber imitation leather, etc.), in fact, also the rubber sole, is only the processing method is different.

It's cheaper to use melamine.

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< p > meandai is mainly composed of rubber, with fine texture, wear-resisting and tortuous properties.

It is infinitely extended, with a general width of 1 meters, and 2 meters long after rolling out.

It is necessary to blank with a punching tool, and then polish the edges. The general thickness is between 3-5mm, depending on the requirements.

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< p > 14, raw rubber base: raw rubber is the general name of rubber which is not mixed with plastic and mixed. It is the most basic raw material for making rubber, including natural rubber and synthetic rubber.

We usually say that the raw rubber base is wear-resistant, the raw rubber base is actually the ripe rubber base, which is processed by raw rubber, but the appearance is like raw rubber, which is a mistake that we have established.

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< p > raw rubber has poor plastic effect, low hardness, low density, easy to wear and break, and the properties of the gel are just the opposite, with good wear resistance and toughness.

The use of gel is widely used, for example, automobile tires; raw rubber is only used for making low-grade daily necessities, such as < a href= "//www.sjfzxm.com" > slippers < /a >.

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< p > 15, PC: Polycarbonate (PC) resin is a kind of thermoplastic engineering plastic with excellent properties. It has outstanding impact resistance, good creep resistance and dimensional stability, heat resistance, low water absorption, non-toxic and excellent dielectric properties. It is the only product with good pparency in the five major engineering plastics, and also the fastest growing general engineering plastics in recent years.

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< p > PC has the characteristics of good weatherability, beautiful appearance, impact resistance, high pmittance and strong plasticity.

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< p > 16, ABS bottom: Acrylonitrile Butadiene Styrene, acrylonitrile butadiene styrene copolymer.

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< p > ABS engineering plastics are generally opaque. Their appearance is light tooth like, non-toxic, tasteless, tough, hard and rigid, slow burning, yellow flame and black smoke. After burning, the plastic softens and scorch, giving special cinnamon odour, but there is no molten drop phenomenon.

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< p > with excellent comprehensive properties, it has excellent impact strength, dimensional stability, electrical properties, abrasion resistance, chemical resistance, dyeability, molding and mechanical processing.

Disadvantages: low thermal deformation temperature, combustible and poor weatherability.

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< p > 17, PE bottom: PE plastic (polyethylene), English Name: Polyethylene.

Corrosion resistance, electrical insulation (especially high frequency insulation) are excellent, rigidity, hardness and strength are high, water absorbency is small, good electrical properties and radiation resistance.

The PE has good softness, elongation, impact strength and permeability, fatigue resistance, wear resistance and corrosion resistance.

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< p > 18, PP bottom: PP plastic (polypropylene), English Name: Polypropylene.

It is a linear polymer with high density, no side chain and high crystallinity. It has excellent comprehensive properties.

It is white and plucent, waxy; it is lighter than polyethylene.

Transparency is also better than polyethylene (PE), harder than polyethylene.

PP soles are small in density, strong in strength, stiffness, hardness and heat resistance. They have good electrical properties and high frequency insulation, and are free from humidity and corrosion resistance.

However, it becomes brittle at low temperature, non wearable and easy to age. It is easy to decompose under certain conditions.

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< p > 19, SBR bottom: styrene butadiene rubber is a polymer elastomer material synthesized by copolymerization of butadiene and styrene as the main monomer. Its quality is homogeneous and pure, and impurities are mixed less.

It can be dissolved in benzene, toluene, gasoline, chloroform and other organic solvents.

The unsaturated double bonds in the styrene butadiene rubber molecule form a crosslinked network structure with the vulcanizing agent through the substitution or addition reaction, and the butadiene vulcanizate reinforced by the reinforcing agent has higher physical and mechanical properties.

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< p > styrene butadiene rubber has the advantages of slow vulcanization speed, good vulcanization and flatness, no vulcanization, and excellent aging resistance, heat resistance and wear resistance.

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< p > 20, cork, wooden bottom < /p >.

< p > 21, other categories: SBR, TPR, ABS, and PVC / EVA/ PU return material and other mixed materials; < a href= "//www.sjfzxm.com" > linen < /a > wool spinning.

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