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There are many factors that affect polyurethane sheets. And in addition to **, there are many aspects to consider whether cooperation can be reached. You can learn about the shares of Beipeng Building Materials Group, and there should be some gains.
Beipeng Building Materials Group Co., Ltd. is a large-scale entity enterprise integrating R&D, manufacturing, engineering general contracting, import and export, with rich industry experience and strong strength, is a professional manufacturer of thermal insulation materials and supporting materials, focusing on providing professional thermal insulation materials and system solutions.
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rubber and polyurethane. Rubber soles are a common material for safety shoes. It has strong corrosion resistance and wear resistance. It is a polymer compound.
It has high elasticity, high abrasion resistance and bending resistance. It can withstand multiple bending, stretching and compression without being damaged.
Polyurethane soles are a common material for regular shoes. It's light and comfortable to wear. It usually forms various bubbles in production, and has the characteristics of good elasticity, light weight, and oil resistance.
It is comfortable and stretchy to wear. The polyurethane sole is relatively simple to process and mold, manufactured by a molding process, does not need to be bonded, saves labor and time, is conducive to the health of producers, does not pollute the environment, and greatly improves production efficiency.
How to prevent the sole from slipping.
1. Clean the soles and put double-sided tape.
Tear it into pieces and stick it to the sole.
2. After the sole is cleaned, polish the sole with sandpaper, and it can be anti-slip after increasing the friction.
3. Rub the sole of the shoe with a potato, because the raw potato is rich in starch, you can use it to rub the sole.
4. Rubber soles, etc., are scalded out with iron wires or cut out some grids with knives to increase friction.
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Hello pro, which is better than the quality of resin or plastic? Generally speaking, the sedan chair of the resin model is much lower than plastic, and the expressiveness of resin will be better (in fact, it is still because it is cheap, so things of the same grade are either better in detail than plastic, or cheaper than plastic.) Model.
Composition comparison: 1. Plastics: Plastics are composed of synthetic resins and fillers, plasticizers, stabilizers, lubricants, pigments and other additives.
2. Resin: natural resin is an amorphous organic substance obtained from animal and plant secretions in nature, such as rosin, amber, shellac, etc. Synthetic resins are resins obtained by chemical synthesis of simple organic matter or chemical reaction of some natural products.
Comparison of characteristics: 1. Plastics: most plastics are lightweight, chemically stable, and will not corrode; Good impact resistance; It has good transparency and abrasion resistance; Good insulation, low thermal conductivity; Generally, the formability and colorability are good, and the processing cost is low.
2. Resin: Resin products have the advantages of high precision, good brightness, clear edges and corners, not easy to wear, not easy to scratch, rich colors, diverse shapes and effects, environmental protection and nature. If my answer is helpful to you, please give it a thumbs up (comment in the lower left corner), look forward to your like, your efforts are very important to me, and your support is also my ability to imitate my progress.
Finally, I wish you good health and a good mood!
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Summary. It refers to a highly elastic polymer material with reversible deformation, which is elastic at room temperature, can produce large deformation under the action of a small external force, and can return to its original state after removing the external force.
Dear, rubber *** some yo.
It refers to a highly elastic polymer material with reversible deformation, which is elastic at room temperature, can produce large deformation under the action of a small external force, and can return to its original state after removing the external force.
The structure of rubber is also the most important factor affecting the conductivity, and the branch-like structure is easy to form an intertwined conductive path in the rubber, which will improve the conductivity.
Due to the large molecular weight, the macromolecular chain is in the form of a random coil curve without the action of external force. When the external force acts, the external force is withdrawn, the entanglement of the thread group changes, and the molecular chain occurs, resulting in a strong recovery tendency, which is the origin of the high elasticity of rubber.
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Summary. Compared to the two, rubber is more durable and more resistant to corrosion.
Compared to the two, rubber is more durable and more resistant to corrosion.
The biggest feature of rubber is that it has the advantages of elasticity, wear resistance, cold resistance, and not easy to deflat. These fissures of rubber are related to the properties of the molecules that make up the rubber. Natural rubber is made up of thousands of isoprene molecules.
The molecular chain itself has the characteristics of softness and toughness when touched vertically, which is called flexibility. Generally speaking, rubber with good flexibility has high elasticity and good wear and cold resistance. Some synthetic rubbers, because they deliberately change their molecular structure, make them have special advantages.
For example, butyl rubber, which is made of isobutylene and a small amount of isoprene, has excellent air tightness due to the large number of methyl side chains in the molecule, which hinders the movement of the molecular chains. In addition, the size of rubber molecules and whether the arrangement between molecules is neat will affect the performance of rubber. Generally speaking, the low molecular weight of rubber means that the elasticity is poor; The molecular weight is too large, and the rubber hardens.
It is based on this relationship that chemists design and manufacture rubber with various properties.
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Rubber and polyurethane are two different materials. The advantages in terms of its use are also slightly different:
Rubber: 1, Rubber is a material made of elasticity, insulation, impermeability to water and air after processing from rubber trees, rubber grass and other sensitive plants.
Highly elastic polymer compounds. It is divided into two types: 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.
Rubber products are widely used in all aspects of industry or life. 2. Rubber is made from latex, and some of the non-rubber components contained in latex remain in the solid natural rubber. Generally, natural rubber contains 92%-95% of rubber hydrocarbons, while non-rubber hydrocarbons account for 5%-8%.
Due to different manufacturing methods, different origins and even different rubber picking seasons, the proportion of these ingredients may be different, but basically within the range.
Polyurethane: 1. Polyurethane material is currently the best insulation material in the world. A class of polymers whose backbone contains —NHCOO—repeating building blocks.
Abbreviated as PU. It is formed by polymerization of isocyanates (monomers) and hydroxyl compounds. Due to the strong polar urethane group, insoluble in non-polar groups, it has good oil resistance, toughness, wear resistance, aging resistance and adhesion.
Materials suitable for a wide temperature range (-50 150) can be made from different raw materials, including elastomers, thermoplastic resins and thermosetting resins. It is not resistant to hydrolysis at high temperatures, nor is it resistant to alkaline media.
2. Polyurethane elastomers are used as rollers, conveyor belts, hoses, auto parts, shoe soles, synthetic leather, wires and cables, and medical artificial organs. Soft foams are used for the lining of vehicles, rooms and clothing, rigid foams are used for heat insulation, sound absorption, packaging, insulation and low-foaming synthetic wood, coatings are used for high-end vehicles, furniture, god-aged wood and metal protection, anti-leakage materials for pools, dams and buildings, and fabric coatings. Adhesives have good adhesion to metals, glass, ceramics, leather, fibers, etc. In addition, polyurethane can be made into emulsions, magnetic materials, etc.
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Summary. Rubber: It has strong corrosion resistance and abrasion resistance. It is a polymer compound with high elasticity, high abrasion resistance, and bending resistance. It can withstand multiple bending, stretching and compression without being damaged.
Hello, rubber is durable.
Rubber has strong corrosion resistance and abrasion resistance. It is a polymer compound with high elasticity, high wear resistance, and bending resistance. It can withstand multiple bending, stretching and compression without being damaged.
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Polyurethane nuclide ester is good.
Polyurethane is better than rubber, polyurethane is wear-resistant, not non-slip, rubber is non-slip and not wear-resistant, and now polyurethane is used to make the sole of the majority.
Polyurethane is a polymer containing urethane group in the macromolecular backbone called polyurethane, and polyurethane is divided into two categories: polyester polyurethane and polyether polyurethane. Polyurethane has many excellent properties, so it has a wide range of uses.
Polyurethane materials have been widely used in the field of home furnishing, construction, daily necessities, transportation, home appliances, etc.
Uses of polyurethane:
1. Polyurethane foam material.
It is divided into rigid polyurethane foam, semi-rigid polyurethane foam and flexible polyurethane foam material. Rigid polyurethane foams are mainly used as building insulation materials, insulation materials (insulation for plumbing facilities, etc.), daily necessities (cushions for beds, sofas, etc., insulation layers for refrigerators, air conditioners, surfboards, etc.), and transportation materials (cushions, ceilings, etc. for automobiles, airplanes, and railway vehicles).
2. Polyurethane elastomer.
Polyurethane elastomers have the advantages of good tensile strength, tear strength, impact resistance, abrasion resistance, weather resistance, hydrolysis resistance, oil resistance and so on. It is mainly used as coating materials (such as hoses, gaskets, wheel belts, rollers, gears, pipe tunnels, etc.), insulators, shoe soles and solid tires. <>
There is a difference between rubber and plastic, rubber is much higher than plastic, the material of rubber is solid, that is to say, rubber is made of a material from the inside out, it has the effect of wear-resistant, anti-static, anti-slip and not easy to break, plastic is different, he is much worse than rubber. Now you can choose your own color on the market.
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