What is raw rubber ? What is the difference between raw and cooked rubber?

Updated on physical education 2024-04-16
10 answers
  1. Anonymous users2024-02-07

    Raw rubber belongs to one of the positive rubber categories, and the positive rubber particles are compared with it: the people who are playing the positive rubber are very rare, and occasionally the elderly are seen. Most people hit the forehand with a reverse glue.

    Long glue (round) particles are longer than normal rubber particles, and the ball that hits back to the past will fluctuate and change the direction of rotation, which is a strange plate and makes the opponent uncomfortable. The diameter of raw rubber (round) particles is larger than that of positive rubber particles, and the ball that hits back to the past will sink, which is a strange plate. It is suitable for players with good basic skills and bounce.

  2. Anonymous users2024-02-06

    The raw rubber rubber is similar to the ordinary positive adhesive rubber in terms of specifications, but the glue content of the colloid is larger than that of the positive adhesive rubber, so the particles are softer and the elasticity is relatively larger. Compared with positive rubber, the main feature of raw rubber is that the ball speed is significantly faster, which is suitable for athletes to take the initiative to exert force. When hitting the ball, in the case of heavy hits, the ability to control the ball is better, and the ball that is hit is slightly sinking.

    The main disadvantage of raw rubber is that it has little friction and is not easy to make rotation. In the case of light hitting, the stability is not as good as the positive glue, and the phenomenon of hitting the ball slipping down the net or making the ball float often occurs, and there is a lack of room for maneuver in the attack.

    Raw rubber includes natural rubber and synthetic rubber, and there are mainly the following varieties: commonly used natural rubber is smoke sheet glue and standard rubber; Commonly used synthetic rubber is styrene-butadiene rubber, butadiene rubber, butyl rubber. There are also a small number of special rubber materials using neoprene and nitrile rubber.

    Resources. Hope it helps!

  3. Anonymous users2024-02-05

    The biggest difference between raw rubber and cooked rubber is that raw rubber is smaller than cooked rubber in terms of tensile strength and resilience, and the surface of raw rubber is rough while cooked rubber is generally smooth.

    Raw rubber is a rubber that has not been vulcanized with various additives and fillers, it can be dissolved in organic solvents, and cooked rubber is vulcanized rubber.

    Cooked rubber, as the name suggests, is of course processed on the basis of raw rubber, generally in the rubber industry, vulcanized rubber is cooked rubber, its raw material is the rubber compounded by the rubber after the mixing of rubber under a certain temperature, pressure and time, through cross-linking by linear macromolecules into three-dimensional network structure of rubber. Here alone, the so-called rubber compound is actually raw rubber and compounding agent that are evenly mixed and have not been cross-linked. Vulcanized rubber is generally insoluble in solvents.

    Features of raw and cooked rubber:

    Raw rubber, which is actually one of the positive rubber, is close to natural rubber because of the very low degree of vulcanization, with flexible texture, sensitive response, rapid rebound and not easy to control. Therefore, the user must be a fast attack, and he must rush to attack and hit strongly. You can't slow down, you can't keep, once the ball slows down and gets lighter, the ball won't be your turn to control, and you can hold a sharp weapon in your hand, but you are at the mercy of others.

    Cooked rubber is further processed from raw rubber, which heats the raw rubber to a specified temperature and keeps it warm for a specified time, and then goes through some chemical reactions to add some substances or remove some substances. It's ripe glue. Generally, cooked rubber is more tough, raw rubber is not resistant to high temperature, the melting point is low, the melting point is about 0 degrees, the elasticity is poor, and it is fragile.

  4. Anonymous users2024-02-04

    Hello, the following provides you with a way to identify raw rubber and cooked rubber: raw rubber is simply after adding various additives and fillers, there is no vulcanized rubber, cooked rubber is vulcanized rubber, let's talk about the specific difference between raw rubber and cooked rubber.

    1. Toughness is different. The toughness of raw rubber is not as good as that of cooked rubber, and raw rubber is much harder than cooked rubber, because cooked rubber is formed after raw rubber is heated, for example, car tires are cooked rubber.

    2. The smell is different. Raw rubber does not have any smell, because raw rubber has not been vulcanized, and after vulcanization, cooked rubber will have a strong smell, and the pungent rubber smell we often say is cooked rubber;

    3. It looks different in appearance. The surface of raw rubber is very rough, and the surface of cooked rubber is generally smooth, like the glue on the table tennis racket is raw rubber, and the particles attached to the raw rubber can help the racket better control the ball.

    Ask how to see it directly with the naked eye hand mask.

    Answer 4: The melting point is different. The melting point of raw rubber is about 80 degrees, and the melting point of cooked rubber is about 120 degrees, so the elasticity of raw rubber is not as good as that of cooked rubber, and it is very easy to break.

    Question: I want to change the tires of the battery car.

    If you want to change the tires of electric vehicles, it is recommended to use cooked rubber.

    Because the softness of cooked rubber is relatively good and durable.

    Do you have any other questions? We'll be happy to continue to answer your questions

  5. Anonymous users2024-02-03

    Raw rubber is a polymer material with unique high elasticity, which is the parent material for the manufacture of rubber products, generally referring to unvulcanized rubber rubber. The rubber tree flows out of the manuscript near neutral liquid, and ammonia is added.

    Made into latex (can be stored for a short time).

    Performance: The traditional varieties of natural raw rubber mainly include smoke film, wrinkled film, air-dried film, granular rubber or standard rubber. Raw rubber is vulcanized to become a finished product (also called, cooked rubber, but rarely called that).

    GB T9881-2008 "Rubber Terminology". green, unsulfed, raw. Adjectives.

    The final state of the compound or product before it is vulcanized. Limb filial piety raw rubber includes natural rubber.

    and synthetic rubber, mainly the following varieties: commonly used natural rubber is smoke sheet rubber, standard rubber; Commonly used synthetic rubber is styrene-butadiene rubber, butadiene rubber, butyl rubber. There are also a small amount of special transport repentance rubber materials using neoprene and nitrile rubber.

  6. Anonymous users2024-02-02

    Raw rubber is a rubber with particles pointing upwards and a diameter greater than the height. It is characterized by a sinking of the ball and a weak spin of the ball. It has the effect of reducing the rotation of the raw rubber from the tarding shed, so it is particularly easy to control the ball.

    1. Different forms.

    Long glue. The particle height is high, the raw rubber is shorter, and the degree of vulcanization of the raw rubber is low.

    2. Different ways of playing.

    The raw rubber has fast speed and weak rotation, and is mainly used for fast attack near the platform (such as Liu Guoliang.

    Yang Ying) or near the middle of the arc fast play (such as Wang Tao.

    Cao Zhen, Jiang Huajun), in short, is to win with speed. Long rubber has neither speed nor rotation, but with its strange anti-rotation performance and the advantages of not eating rotation, it is mostly used to control the transfer style of play such as chipping.

    3. The speed is different.

    The speed of raw rubber is the fastest, while the long rubber is poorer. The reason is that the long rubber particles are long, and they will lodging when they touch the ball, and the potential energy of the incoming ball is partially converted into the potential energy required for the lodging of the rubber particles, resulting in poor elasticity of the long glue.

    The granules of raw rubber are short, and the above problems are not present, but relatively speaking, due to natural rubber.

  7. Anonymous users2024-02-01

    Hello. First of all, to know raw rubber and long rubber, you must understand positive rubber.

    One: positive glue. The rubber used for pasting rubber particles outward is regarded as positive glue, because the rubber particles are outward when pasting the racket, and the contact area is small, so the speed of returning the ball is faster, but its disadvantage is the lack of rotation.

    Two: long glue. As a special rubber particle in the positive rubber leather, the long rubber is long and soft, with good toughness, and is obliquely stamped to one side, resulting in the return line being erratic and sinking, which is known as "magic rubber particles" in the industry.

    It is suitable for playing chipping balls (Zhu Shihe uses long glue) and strange balls (n people use long glue to play monster balls).

    Three: Raw rubber.

    Raw rubber is a kind of rubber between long rubber and positive rubber, and its performance is also the best of the two cherry blossoms, Dan Song collapsed with the characteristics of long rubber rubber particles anti-rotation, hitting and sinking, and has the advantages of positive rubber particles are good at fast attack.

    PS: Speed: raw glue, positive glue, long glue.

    Spin** positive glue, raw rubber, long rubber.

    Reverse rotation ** long glue raw rubber positive rubber.

    Control these mold round set of rubber are more difficult than the reverse glue, and the use of these kinds of particle rubber is not the same, although can be offensive and defensive, the positive rubber is more afraid of adding the arc circle in defense, the long rubber is easier, and the offensive positive rubber can use small topspin, the raw rubber is more prominent speed, the attack of the long rubber is more passive, can only make a fuss from the change.

  8. Anonymous users2024-01-31

    Summary. Hello, anti-glue, which is characterized by strong spin force, stable hitting and easy control, suitable for arc circle type or arc circle combined with fast attack type play. It is also the preferred type for beginners due to its stable hitting and good ball control.

    For professional players, there are a variety of anti-rubber sponge rackets with different properties to choose from, such as strong adhesive rubber and soft and thick supporting sponges, so they have good "biting" and "wrapping" characteristics. The reverse sponge rubber is the most commonly used rubber for straight and horizontal players, almost 100% of European players use this kind of rubber, and nearly 80% of Asian players also use this kind of rubber. Because this kind of rubber is a good balance between speed and rotation requirements.

    Players who play anti-glue hope that the rubber has a high wrapping force, that is, the rubber surface must be sticky, so as to have a high friction coefficient. In addition to professional athletes who have the conditions to change the rubber when playing games, amateurs may not have this condition, so they must know how to protect the stickiness of the rubber. The easiest way is to clean it with a soft foam sponge dipped in water after each exercise, and there are also special detergents on the market**, which will be better to use.

    After cleaning, cover with polyester film, which protects against both dust and oxidation.

    Raw rubber, raw rubber is a rubber with particles up and a diameter greater than the height. It is characterized by sinking the ball and spinning the ball.

    What is the difference between raw rubber and reverse gum.

    Hello, anti-glue, which is characterized by strong spin force, stable hitting and easy control, suitable for arc circle type or arc circle combined with fast attack type play. It is also the preferred type for beginners due to its stable hitting and good ball control. For professional players, there are a variety of anti-adhesive sponge rackets with different properties to choose from, such as strong adhesive skin and soft and thick sponges, so they have good "biting" and "wrapping" ball characteristics.

    The reverse sponge rubber is the most commonly used rubber for straight and horizontal players, almost 100% of European players use this kind of rubber, and nearly 80% of Asian players also use this kind of rubber. Because this kind of rubber is a good balance between speed and rotation requirements. Players who play anti-glue hope that the rubber has a high wrapping force, that is, the rubber surface must be sticky, so as to have a high friction coefficient.

    In addition to professional athletes who have the conditions to play games, that is, to change the rubber finch to take the field, amateurs may not have this condition, so they must know how to protect the stickiness of the rubber. The easiest way is to clean it with a soft foam sponge dipped in water after each exercise, and there are also special detergents on the market**, which will be better to use. After cleaning, cover with polyester film, which protects against both dust and oxidation.

    Raw rubber, raw rubber is a rubber with particles up and a diameter greater than the height. Its characteristic is to hit the ball and sink, and to spin the ball.

    Weakened. Since the raw rubber has a rotation-reducing effect, it is particularly easy to control the ball. Zheng Qing currently has a group of cross-shot players on both sides of the shoot, and in order to change the shot, he has adopted the combination of forehand backhand rubber (arc circle) and backhand raw rubber (fast dial and swing short).

    Rubber can be used as an option for straight shooting, reverse shooting, and reverse sticking.

  9. Anonymous users2024-01-30

    Raw rubber is a highly elastic polymer material, so what is the difference between raw rubber and cooked rubber? 1. High temperature resistance: raw rubber is not resistant to high temperature and has a relatively low melting point, which is generally about 80 degrees; Cooked rubber is resistant to high temperature and has a relatively high melting point, with a melting point of about 120 degrees.

    2. Degree of elasticity: raw rubber has poor elasticity and is easy to break; The elasticity of cooked rubber is relatively good and tough. 3. The appearance is different

    The surface of raw rubber is rough; The surface of cooked glue is smoother and softer. Cooked rubber is a product obtained from the further processing of raw rubber, which is the material of rubber products. Raw rubber includes synthetic rubber and natural rubber, natural rubber mainly includes standard rubber and cigarette sheet rubber, synthetic rubber mainly includes butadiene rubber, butyl rubber, styrene-butadiene rubber, etc.

  10. Anonymous users2024-01-29

    Raw rubber is a polymer material with unique high elasticity, which is the parent material for making rubber products made by the year, generally referring to the unvulcanized rubber compound. The near-neutral liquid flowing from the rubber trees in the acres is made into latex by adding ammonia (which can be stored for a short time).

    Raw rubber is a unique polymer material with high elasticity, which is the parent material for the manufacture of rubber products, and generally refers to unvulcanized rubber rubber. The near-neutral liquid flowing from the rubber tree is made into latex by adding ammonia (which can be stored for a short time).

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