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Rubber Kneader

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Rubber recycling activators are substances that speed up the recycling process of worn tires and improve the quality of the recycled product. These substances change the chemical structure of old tires, allowing them to be combined with newer raw materials to produce products with desirable properties.

Mechanism of action

Chemical activators increase the reactivity level by changing the chemical structure of old rubber. These changes include breaking existing chemical bonds, creating new functional groups, and creating new cross-links. Physical activators soften and break down the structure of rubber by applying energy. This makes it easier for old rubber to be combined with new raw materials.

Applications of rubber recycling activators

Rubber industry: Production of new rubber products from recycled tires. Construction industry: Production of asphalt and rubber flooring. Automotive industry: Production of automotive parts such as gaskets, insulation, and wire covers.

Benefits of using rubber recycling activators

Reduction of production costs: By reducing the consumption of new raw materials and energy. Environmental protection: Reducing the volume of rubber waste and reducing the consumption of fossil fuels. Improving the properties of recycled products: Production of high-quality products with better performance.

Rubber Shoes Cold Glue Building Ma…

Rubber Shoes Machines, Rubber

Rubber Shoes Gluing Heating Vulcan…

Rubber Shoes Machines, Rubber

Rubber Shoes Injection Machine

Rubber Shoes Machines, Rubber

Rubber Strainer

Rubber Processing Machines, Rubber

salicylic acid

Chemical, Acid

Salicylic Acid (C₇H₆O₃) is a well-known organic compound characterized by its phenolic structure and anti-inflammatory as well as keratolytic (exfoliating) properties. It belongs to the beta hydroxy acid (BHA) family and occurs naturally in the bark of willow trees (Salix). Salicylic acid plays a crucial role in the treatment of numerous skin disorders and is one of the most effective ingredients used in anti-acne and exfoliating skincare products.

Chemical Structure

Molecular Formula: C₇H₆O₃
Chemical Name: 2-Hydroxybenzoic Acid
Structure: A benzene ring with two functional groups — a hydroxyl group (OH) at position 2 and a carboxylic acid group (COOH) at position 1.

This dual functionality gives salicylic acid both phenolic and carboxylic acid characteristics, contributing to its antibacterial activity and ability to penetrate skin pores effectively.

Physical and Chemical Properties

Property	Value / Description
Physical State	White crystalline powder
Melting Point	Approximately 158–161 °C
Solubility	Soluble in alcohol and ether; slightly soluble in water
pH (1% aqueous solution)	Acidic — around 2.4
Odor	Mild, phenolic
Stability	Relatively stable in acidic media; unstable in alkaline conditions

Applications of Salicylic Acid

In Skincare Products

Anti-acne treatment
Chemical exfoliant
Cleansing and unclogging pores
Sebum (oil) regulation

In Scalp and Hair Treatments

Dandruff control
Treatment of psoriasis and seborrheic dermatitis

In Pharmaceuticals

Mild anti-inflammatory agent
Active ingredient in topical ointments and creams

In Cosmetic Formulations

Used in toners, serums, masks, cleansers, and day/night creams
Often combined with niacinamide or retinol for enhanced results

Advantages of Salicylic Acid

Deep pore penetration: Unlike AHAs, BHAs are oil-soluble, allowing deeper absorption into the skin.
Exfoliating and anti-inflammatory properties: Effective against acne, blackheads, and whiteheads.
Sebum control: Helps regulate skin oil production.
Mild antibacterial and antifungal effects.
Enhances absorption of other active ingredients in formulations.

Disadvantages and Limitations

Possible irritation for sensitive skin: may cause redness, dryness, or flaking.
Use with caution during pregnancy and breastfeeding.
High concentrations may lead to burning or inflammation.
Incompatible with certain ingredients such as strong acids, pure Vitamin C, or retinol (when used simultaneously).

Samsung polycarbonate

Chemical, Carbonates

Polycarbonate is a type of engineering plastic that is widely used in various industries, including electronics, due to its excellent mechanical and thermal properties. Samsung also uses this material in the production of many of its products, especially mobile phones and tablets. Why does Samsung use polycarbonate? High impact resistance: Polycarbonate is very resistant to impact, which is why it protects electronic devices from physical damage. Light weight: Polycarbonate weighs very little, making electronic devices lighter and more portable. High transparency: Many types of polycarbonate are transparent, which is why they are used in the manufacture of parts that require light to pass through, such as camera lenses. Heat resistance: Polycarbonate is heat resistant and does not deform at high temperatures. High formability: Polycarbonate can be easily molded into various shapes. Applications of polycarbonate in Samsung products Back covers of mobile phones: Many Samsung mobile phones use polycarbonate back covers, which give the device a beautiful and at the same time resistant appearance. Camera lens: Transparent polycarbonate is used in the manufacture of camera lenses of mobile phones. Keys and Buttons: The physical keys and buttons on Samsung mobile phones are often made of polycarbonate. Internal Parts: Some of the internal parts of Samsung mobile phones are also made of polycarbonate.

SBC (SBS, SEBS, SIS, SEPS)

TPE/TPR (Thermoplastic Elastomer/Rubber), Rubber

Styrene block copolymers (SBC) are a group of engineering polymers composed of repeating monomer units of styrene and DNA (DNAs include butadiene, isoprene, ethylene, and propylene). These polymers are widely used in various industries due to their unique properties, including a combination of rubber and plastic properties.

Types of Styrene Block Copolymers

SBS (Styrene-Butadiene-Styrene): The most common type of SBC and is composed of hard styrene blocks and soft butadiene blocks. SBS has good mechanical properties, high elasticity, and wear resistance. SIS (Styrene-Isoprene-Styrene): Similar to SBS, but isoprene is used instead of butadiene. SIS is softer and more flexible than SBS. SEBS (Styrene-Ethylene/Butylene-Styrene): The hydrogenated form of SBS. SEBS has better heat and chemical resistance than SBS and maintains its flexibility even at low temperatures. SEPS (Styrene-Ethylene/Propylene-Styrene): It is the hydrogenated form of SIS. SEPS has similar properties to SEBS, but is slightly harder and more resistant to oils.

General properties of SBC

Combination of rubber and plastic properties: SBCs have both the elastic properties of rubber and the moldability of plastics. Abrasion and tear resistance: SBS and SEBS in particular have good resistance to abrasion and tear. High flexibility: SIS and SEBS in particular have high flexibility. Thermal resistance: SEBS and SEPS have higher heat resistance than SBS and SIS. Chemical resistance: SEBS and SEPS have better chemical resistance than SBS and SIS. Moldability: SBCs can be easily molded into various shapes.

SBC Applications

Automotive industry: Production of automotive parts such as gaskets, seat covers, seals and sound insulation. Shoe industry: Production of shoe soles, shoe uppers and other parts. Construction industry: Production of thermal insulation, floor coverings and sealants. Packaging industry: Production of packaging films, adhesives and protective coatings. Sports industry: Production of balls, sports shoes and other sports equipment.