Is it better to have a PU foam sole or a rubber sole?

PU soles and rubber soles have their own merits.

Rubber Sole (RB) RB is the abbreviation of English rubber (rubber); Hot compression molding, divided into natural rubber and recycled rubber. Heavy weight, not oil-resistant, the bottom must be molded on the fitting surface to grind roughly, easy to shorten when heated, and the color is inconsistent. Pros:

Good abrasion resistance, anti-slip, elastic, not easy to break, good softness, good elongation, stable shrinkage, good hardness, good bendability, waterproof. Disadvantages: heavier, easy to spit frost (a quality problem), not easy to corrode (environmental protection problem); It is not hard and easy to be pierced; The air permeability and moisture absorption are not good, and they are afraid of oil soaking, so they should not be worn in places that come into contact with oil such as cars, gas stations, etc.

Rubber foam weight is lighter than rubber sole, has a rubber smell, on time with fingers, the surface ** is more obvious than the general sole, and the wear resistance is poor. High-pressure polyethylene rubber sole The sole is made of high-pressure polyethylene and rubber-flavored sole, and rubber and plastic are used together. Raw rubber sole:

Heavy, expensive, not resistant to oil and heat. Prone to discoloration. Polyurethane bottom (PU) Polyurethane is the abbreviation of polyurethane, the English name is polyurethane, it is a polymer material, made of a B C polyester foam, oily and water-based.

It is an emerging organic polymer material, known as the "fifth largest plastic", and is mostly used in the manufacture of high-end leather shoes, sports shoes, travel shoes, etc. Advantages: low density, soft texture, good elasticity, comfortable and lightweight to wear; Good oxidation resistance, excellent wear resistance, flexural resistance, high hardness; Excellent shock absorption and anti-slip performance; Good temperature resistance; Good chemical resistance; It is easy to corrode, which is conducive to environmental protection and is not easy to wrinkle.

Disadvantages: strong water absorption, easy yellowing, easy breakage, poor elongation, not water resistant, perishable bottom, poor air permeability.

The former one, the latter one burns the feet.

Differences:1Quality: Rubber sole, from abrasion resistance, folding resistance, comfort level are very good. The plastic sole is also very good in terms of wear resistance. But the quality of rubber soles is better than that of plastic soles.

2.Safety: Rubber is a natural material, a material from nature, and the safety performance should be good, because it has a wear-resistant and anti-slip effect.

Plastic is an environmentally friendly material that is easy to hydrolyze, due to the low temperature resistance and anti-slip performance of general PU is slightly worse. The safety is worse than that of rubber.

Rubber soles and rubber foam bottoms have their own benefits, such as Abbisko Rock Bottom:

1. The rubber foam sole has very good elasticity, and also has good tear resistance, which is more resistant to aging, corrosion, and electrical insulation.

2. Rubber foam soles are more expensive and use a combination of inorganic and organic foaming agents, which can not only meet the requirements of performance, but also reduce the cost.

3. The rubber sole is added with a variety of additives, because this kind of sole is very good in terms of wear resistance, oil resistance, electrical insulation, anti-static, and acid and alkali resistance.

4. In addition to the above characteristics, the rubber bottom also has the characteristics of very light weight and good wear resistance.

Introduction to Rubber and Rubber Foaming:

Rubber is a polymer compound that is divided into natural rubber and synthetic rubber. Now the common rubber soles on the market have soft feel, good elasticity, strong wear resistance, acid and alkali resistance, and are widely used in the production of various sports shoes.

Rubber foam bottom is a kind of closed-cell or open-cell foam material made of natural or artificial rubber, and the outsole made of shoes has the characteristics of light weight, wear resistance, aging resistance, corrosion resistance, low temperature resistance, strong insulation, tear resistance and good slip resistance.

The disadvantages of rubber are also obvious, the shoe material is heavy, easy to spit frost, and high. Foam sole ** cheap, light material, wear-resistant and easy to color, good air permeability, high strength, but poor softness, non-slip, easy to break in winter, etc.

Rubber foam soles and rubber soles have their own advantages, and the specific choice should be based on the needs of use and individual preferences.

Rubber foam sole has excellent elasticity, good tear resistance, aging resistance, corrosion resistance, electrical insulation and other characteristics, while pursuing low cost, the use of inorganic and cavernous late mountain machine foaming agent to reduce the amount of organic foaming agent, can not only meet the performance requirements, but also reduce costs.

By adding various additives, the performance of rubber sole has been greatly improved in terms of wear resistance, oil resistance, electrical insulation, anti-static and acid and alkali resistance, and it has the characteristics of light weight and good wear resistance.

In summary, rubber foam soles and rubber soles have their advantages, and the specific choice depends on the needs of use and personal preference.

Foam rubber sole and tire rubber sole, foam rubber sole is good.

Rubber foam bottom: it has the characteristics of excellent elasticity, good tear resistance, aging resistance, corrosion resistance, electrical insulation and so on. The rubber shoe sponge midsole is an inexpensive low-grade rubber product.

The pursuit of low cost, the use of inorganic and organic foaming agents, reducing the amount of expensive organic foaming agents can not only meet the performance requirements, but also reduce costs.

Contrast

Rubber sole generally has a high specific gravity (i.e., unit density) is a vulcanization process, but it is the first choice for shoe materials at this stage in terms of anti-slip and wear-resistant (except for novel composite materials), which is suitable for outdoor shoes, running shoes, basketball shoes, etc.

Foam bottom is a kind of foaming process, the mainstream of the industry is EVA foaming, which is lighter than other materials, but the price is that other physical properties are not as good as rubber soles, generally with rubber to form soles, jogging shoes, long-distance running and other functional shoes.

The rubber foam bottom is based on the rubber bottom and the foam bottom, is a rubber foaming function (we know, if the rubber is 1 to 1, the rubber foam is generally 1 to do), the advantage is that it has the high wear resistance of a part of the rubber, and has the characteristics of the foam bottom is lighter than the traditional rubber (of course, the physical properties are not as good as the rubber bottom, but better than the foam bottom), the disadvantages are also obvious, and the processing operability is difficult.

Compared to other materials, the sole is good.

Advantages and disadvantages of foam soles.

Advantage 1: Lighter.

The foam sole is formed after foaming, so the mass will be smaller at the same volume. The foam sole series of running shoes is much lighter than other shoes. You know, the quality of a running shoe is also a criterion for whether it is good or not.

2. The buffering effect is better.

Or is it because the sole is formed due to the foaming principle, so it can absorb the shock after being subjected to a double impact on the body and the ground.

3. Softer elasticity.

A midsole is made up of thousands of foaming particles, and its special structure makes it softer and more elastic. This feeling of comfort will be memorable for anyone who wears foam running shoes.

4. More durable.

Experiments have proved that the foam material is more durable than the traditional EVA material at both high and low temperatures, and is not easy to deform.

Disadvantage 1: Not resistant to dirt.

Due to the unique loose structure and color of the foam sole, and the fact that most of the midsole edges are directly exposed, it is more likely to stain and look old, making it more difficult to care for on a daily basis. When you run, the white particles will turn into yellow and black particles.

2. It will stink if you wear it.

Shoes with foam soles are more likely to smell when worn in summer.

3. Too soft. Foam soles are very soft and elastic, but it is precisely because of this that it may be tiring to run for a long time in foam sole running shoes. After the foam sole is impacted, it does not convert the impact force into the next step of energy, but a large part of it is directly lost after absorbing the impact.

Summary. Hello dear, glad for your question oh <>

Foamed rubber soles are better than rubber: because of its good performance, cost-effective, and has the characteristics of excellent elasticity, good tear resistance, aging resistance, corrosion resistance, electrical insulation and so on.

Which is better, foam rubber or rubber for sole.

Hello dear, glad for your question oh <>

The foamed rubber of the sole is better than that of rubber: because of its good xing energy, it has excellent elasticity, good tear resistance, aging resistance, fu corrosion resistance, electrical insulation and other hail characteristics.

Here's what I've put together for you about what I hope will help you; Fanming imitation rubber refers to a highly elastic polymer material with reversible deformation, the fiber is elastic at room temperature, can produce a large deformation under the action of a small external force, and can be restored to its original state after removing the external force, rubber belongs to Huai Nai completely amorphous polymer, its glass transition temperature (t g) is low, the molecular weight is often very large, greater than hundreds of thousands, rubber is divided into natural rubber and synthetic rubber, natural rubber is made from rubber trees, rubber grass and other plants after extracting gum; Synthetic rubber is obtained by polymerization of various monomers, and rubber products are widely used in all aspects of industry or life.

The outsole made of rubber foam has the characteristics of excellent elasticity, light and wear-resistant, good tear resistance, aging resistance, corrosion resistance, electrical insulation, and no broken bottom at a low temperature of minus 20 degrees.

Rubber foam bottom is based on rubber bottom and foam bottom, is a rubber foaming function, the advantage is that it has the high wear resistance characteristics of a part of the rubber, and has the characteristics of the foam bottom is lighter than the traditional rubber, the disadvantage is also obvious, the processing operability is difficult.

Rubber foaming process

When cotton rubber is made of solid dry rubber, the rubber is usually filled with human foaming agent and other additives, and the chemical decomposition reaction is carried out at the vulcanization temperature to decompose the gas. It is very important to make the rubber expand and foam to form microporous rubber, so that the microporous rubber with good performance is very important for the selection of foaming agent varieties, the determination of dosage, and the coordination of foaming agents.

Usually the foaming agent can meet the following requirements: the stability of acid, alkali, light and heat during storage, good, tasteless, non-toxic, foamed microporous rubber without pollution and discoloration, in a short period of time can complete gas decomposition, the amount of gas can be controlled, the powdered foaming agent should be small in particle size, can be evenly dispersed in the rubber compound, does not affect the rubber smiling vulcanization process, low price.

The sole made of rubber foam has the characteristics of light and wear-resistant, good tear resistance, aging resistance, corrosion resistance, insulation, and no broken bottom at a low temperature of minus 20 degrees.

The performance of rubber foam sole is much better than that of foamed plastic outsole, and the production process is simple. The use of foam material for the sole can reduce the weight of the shoe, increase the elasticity of the sole, make it more wear-resistant and more comfortable to wear.

The disadvantage is that the improper ratio of foaming agent will cause uneven pores, resulting in easy tearing of the sole.

Comparison of rubber sole, foam bottom and rubber foam sole

Rubber sole is generally higher than land or higher (i.e., unit density) is a vulcanization process, but it is the first choice for shoe materials at this stage in terms of anti-slip and wear-resistant (except for novel composite materials), which is suitable for outdoor shoes, running shoes, basketball shoes, etc.

Foam bottom is a kind of foaming process, the mainstream of the industry is EVA foaming, which is lighter than other materials, but the price is that other physical properties are not as good as rubber soles, generally with rubber to form soles, jogging shoes, long-distance running and other functional shoes.

Rubber foam bottom is based on the rubber bottom and foam bottom, is a rubber foaming function, generally can replace the rubber bottom with the foam EVA bottom with the bottom guess dismantling.

To put it simply, the rubber foam bottom is good. Because comfort is the first consideration in the sole, the foaming treatment can exponentially improve the shock and vibration damping performance of the sole.

Rubber foam soles have the following advantages and disadvantages:

Pros:1Rubber foam sole has the characteristics of excellent elasticity, light weight and wear resistance, good tear resistance, aging resistance, corrosion resistance, electrical insulation and so on.

2.Rubber foam soles are lighter than traditional rubber.

3.The rubber foam sole has a better cushioning effect, which can absorb the double weight impact of the body and the ground, providing a better sports experience.

Cons front wheels: 1The processing of rubber foam soles is difficult to operate, and professional production equipment and technology are required.

2.Rubber foam soles have relatively low strength and are susceptible to abrasion and cuts, requiring care and protection.

3.Rubber foam soles can harden at low temperatures, affecting wearing comfort.

As mentioned above, rubber foam soles have excellent elasticity, abrasion resistance and cushioning effects, but they are difficult to process, have low strength, and harden at low temperatures.

Hello Qinhui, which is better, rubber or PU? A: Rubber will be a little better, oh 1, rubber sole is a traditional safety sole. In the wear-resistant and high-temperature resistance, the lead is relatively excellent compared with the PU bottom, and the rubber wear-resistant and anti-slip performance is also very good, especially the rubber of Vibram has an absolute advantage, but it is also relatively bulky, and the safety shoes and outdoor shoes are generally completed by lifting and slowly pressing the hot press, and there are also injection, foaming, and different functions.

2. PU is a new type of material, also known as polyurethane, which is light and easy to form. Safety shoes made of this material are lightweight, have a good shock absorption effect, but are not resistant to hydrolysis, **low, generally foamed molding, and are quite a good choice for midsoles. If I found your answer helpful, please give it a thumbs up (rate it in the bottom left corner).