Which is better, rubber or PU? Which material is better, PU or silicone

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.

with 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.

Bottom: heavy, expensive, not oil-resistant, not heat-resistant. Prone to discoloration. Polyurethane.

Bottom (PU) polyurethane is a polyurethane.

The English name is polyurethane, which is a polymer material, which is foamed by polyester material, which is divided into 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. Pros:

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, elongation.

Poor, not water-resistant, perishable bottom, poor air permeability.

Therefore, I believe that we should not look at this issue simply, but should analyze it in light of the actual situation and on a case-by-case basis.

A harmonious relationship is based on respect, and respect for each other is a prerequisite for resolving differences, otherwise, communication cannot stand and differences cannot be resolved.

Robust and effective planning is often one of the hallmarks of good management. Plan for problems that will arise without being surprised when they pop up.

When the career is smooth sailing, many people's good ideas, in fact, it is difficult to achieve smooth sailing, to accept such a reality, people's life can not be smooth sailing, there will be a lot of hardships, pain and even setbacks behind the success. It's normal to experience some setbacks at some point in your life. Only the accumulation of experience, knowledge and experience can shape a successful person, and many great successful people have experienced the ordeal of setbacks.

Dialectical materialism.

Tell us that the development of things is the unity of progress and twists and turns, and although the road is tortuous, the future of development is bright. It is known that the famous inventor Edison.

After more than 6,000 setbacks and failures, the life of the filament was extended by 1,000 hours. Therefore, if you don't experience wind and rain, how to see the rainbow, setbacks are an indispensable test in life, the more setbacks you experience, the more mature people will be, so you must face up to setbacks and don't avoid them.

Those are my thoughts on this issue.

Dear, hello rubber or PU which is better? A: Rubber will be a little better, oh 1, rubber sole is a traditional safety sole. In the wear-resistant and high-temperature performance compared with the PU bottom, the rubber wear-resistant and anti-slip performance is also very good, especially the Vibram rubber has an absolute advantage, but at the same time, it is also relatively bulky and fast, safety shoes, outdoor shoes are generally completed by hot pressing, there are also injection, foaming, 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. <>

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1. Different advantages: PU bottom is lightweight, the viscose rate is better than that of rubber bottom and cow tendon bottom, and the comfort is high; The rubber sole is soft and elastic, which can be worn when doing various lucky celebrations, and natural rubber is mostly used for indoor sports shoes. 2. Different characteristics:

The PU bottom is moderately soft and hard, handmade, not easy to open the glue and rent the bottom, wear-resistant and wear-resistant, good chemical resistance, easy to corrode, and conducive to environmental protection; The rubber sole is tough and wear-resistant, and is mostly used for running shoes. 3. Different uses: PU soles were used to manufacture high-end leather shoes, sports shoes, and travel shoes for daily use, but after improving impact resistance, anti-perforation and anti-slip properties, they can be used as work shoes and protective safety shoes; The rubber sole is suitable for everyday wear or rainy days.

The selection of shoes can be carried out from two aspects, one is to see whether the size of the shoes is in line with the size of their feet, and you can try them on when you buy them, so as to avoid buying them when they are big and wearing them, and they can't wear them when they are small or wear their feet. The second is to see whether the type of shoes meets the needs, if it is sports, you can choose to buy running shoes, and you can buy sneakers for playing football and basketball.

Dear, I'm glad to answer for you: which is better, rubber or PU? A: PU is better, rubber sole is a very traditional sole is relatively old, but it is excellent in wear resistance and high temperature resistance!

PU is a new type of material, also called polyurethane, which is light and easy to mold. It also depends on their respective uses, in terms of performance, the rubber skin has good toughness, waterproof, the stool is cavity but it is easy to rot, the pu skin is soft, usually used for leather goods, and the feel is good, mostly used in shoes and other rubber (rubber) refers to a highly elastic polymer material with reversible deformation, which is elastic at room temperature, and can produce greater deformation under the action of a small external force of the jujube shirt, and can be restored to its original state after removing the external force.

Summary. Hello! Dear, glad to answer for you! Rubber and PU, PU is better. PU is a new type of material, also called polyurethane, which is light and easy to mold. The rubber sole is a very traditional sole, which is relatively old, but it is excellent in wear resistance and high temperature resistance.

Hello! Dear, glad to answer for you! Rubber and PU, PU is better.

Vertical shooting PU is a new type of material, also called polyurethane, which is light and easy to mold. The rubber sole is a kind of sock that is very old, but it is excellent in good wear resistance and high temperature resistance.

The PU bottom is lightweight, the viscose rate is better than that of the rubber bottom and the beef tendon bottom, and the comfort is high. The rubber sole is soft and elastic, and it is believed that the hall can be worn when doing various sports, and the indoor sneakers are mostly used in front of the natural rubber stool.

The PU bottom is moderately soft and hard, handmade, not easy to open the glue and break the bottom, wear-resistant and sensitive potatoes are durable, good chemical resistance to reed products, easy to corrode, and conducive to environmental protection; The rubber bottom bridge is tough and wear-resistant, and is mostly used for running shoes.

Summary. Hello dear, I am happy to answer for you, the answer is: PU is better, rubber sole is a very traditional sole is relatively old, but in the wear-resistant, high-temperature performance is excellent!

PU is a new type of material, also called polyurethane, which is light and easy to mold. It also depends on their respective uses, in terms of performance, rubber skin has good toughness and good waterproof, but it is easy to rot, PU skin is soft, usually used for leather goods, and the feel is good, mostly used for rubber such as shoes.

Hello dear, I am happy to answer for you, the answer is: PU is better, rubber sole is a very traditional sole is relatively old, but it is excellent in wear resistance and high temperature resistance! PU is a new type of material bucket, also called polyurethane, which is light and easy to form.

It also depends on the use of each key balance, from the performance of the rubber skin toughness is good, waterproof is good, but it is easy to rot, PU skin is soft, usually used for leather goods, the feel is also good, mostly used for shoes and other rubber.

Hello Hello The advantages are different: the PU bottom is lightweight, the viscose rate is better than that of the rubber bottom and the cow tendon bottom, and the comfort is high; The rubber sole is soft and elastic, so it can be worn while doing various sports, and indoor sports shoes are mostly made of natural rubber. Features are different:

The PU bottom is moderately soft and hard, handmade, not easy to open the glue and break the bottom, wear-resistant and wear-resistant, good chemical resistance, perishable and open erosion, which is conducive to environmental protection; The rubber sole is tough and wear-resistant, and it is mostly used to make Bibeizhou running shoes.

PU is better.

The difference between PU and silicon:

PU polyurethane material is the abbreviation of polyurethane, the English name is polyurethane, it is a polymer material. Polyurethane is an emerging organic polymer material, known as the "fifth largest plastic", and is widely used in many fields of the national economy because of its excellent performance. The product application fields involve light industry, chemical industry, electronics, textile, medical, construction, building materials, automobile, national defense, aerospace, aviation, etc.

Silica gel alias: silicic acid gel is a highly active adsorption material, which is an amorphous substance; It does not react with any substance except strong alkali and hydrofluoric acid, is insoluble in water and any solvent, is non-toxic and tasteless, and has stable chemical properties. Various types of leaky silica gel form different microporous structures due to their different manufacturing methods.

The chemical composition and physical structure of silica gel determine that it has the characteristics that are difficult to be replaced by many other similar materials: high adsorption performance, good thermal stability, stable chemical properties, high mechanical strength, etc. Silica gel is divided into the following according to the sensitive size of its pore size

Macroporous silicone, coarse-pore silicone, B-type silicone, fine-porous silicone, etc. <>