PVC gloves are made of polyvinyl chloride as the main raw material, with anti-static properties, Class 1000 clean room treatment, high purity water and ultrasonic cleaning. Class 1000 clean room cleaning/processing/packaging/warehousing. The gloves are flat, no color difference, no impurities, no smell, uniform color, uniform quality, quality guaranteed. Class 10000 PVC gloves are suitable for use in standard Class 10000 dust-free clean rooms.

Scope of application

1. High-quality polyvinyl chloride material. 2. Suitable for both hands, with curled wrist. 3. Unique post-processing process, no skin irritation or allergy. 4. Low dust generation and ion content, vacuum dust-free packaging. 5. Suitable for clean room/clean room/purification workshop/semiconductor, hard disk manufacturing, precision optics, optical electronics, LCD/DVD liquid crystal manufacturing, biomedicine, precision instruments, PCB printing and other industries. PVC gloves are widely used in health inspection, food industry, chemical industry, electronics industry, pharmaceutical industry, paint and coating industry, printing and dyeing industry, agriculture, forestry, animal husbandry and other industries for labor protection and family hygiene.

Features

PVC gloves are made of polyvinyl chloride through a special process. The gloves do not contain allergens, no powder, low dust generation, low ion content, do not contain plasticizers, esters, silicone oil and other ingredients, have strong chemical resistance, good flexibility and touch, are easy and comfortable to wear, have anti-static properties, and can be used in a dust-free environment.

Features: 1. Resistant to weak acids and alkalis; 2. Low ion content; 3. Good flexibility and touch; 4. Suitable for production processes such as semiconductors, liquid crystals and hard disks.

Grading standards

Grade A: No holes on the surface of the gloves (powdered PVC gloves), uniform powder, no obvious powder, transparent milky white color, no obvious ink spots, no impurities, and the dimensions and physical properties of each part meet customer requirements.

Grade B: Slight stains, 3 small black spots (1mm¡Üdiameter¡Ü2mm), or a large number of small black spots (diameter¡Ü1mm) (diameter£¾5), deformation, impurities (diameter¡Ü1mm), slightly yellow color, serious nail marks, cracks, and the dimensions and physical properties of each part do not meet customer requirements.

Waste: holes, serious oil stains, serious yellowing, impurities (diameter£¾1mm), no curling or broken edges, rips, scratches, tears, cracks, sticky breaks, and leftovers.

Self-repairing products: large powder content, large curling, slightly dirty, slightly sticky inside, small black oil powder on the fingertips, and physical properties meet customer requirements.

A-grade gloves are allowed to have ¡Ü5 gloves with slight nail marks, and ¡Ü3 gloves with severe nail marks.

Basic raw materials

The basic raw materials of PVC gloves are; PVC paste resin, plasticizer (DOP\DINP), viscosity reducer (solvent oil), heat stabilizer, colorant, filler.

PVC paste resin

Polyvinyl chloride, abbreviated as PVC, is a high molecular compound formed by the polymerization of vinyl chloride monomer, VCM. The degree of polymerization can be controlled by reaction temperature and polymerization molecular weight regulator. Physical properties of PVC paste resin Appearance: white powder Molecular weight: 40600~111600 Density: 1.35~1.45g/ml Apparent density: 0.4~0.65g/ml Specific heat capacity (0~100¡æ): 1.045~1.463J/(g.¡æ) Thermal conductivity: 0.1626W/(mk) Refractive index: nD20=1.544 Particle diameter: compact (XJ) type 30~100um Loose (SG) type: 60~150um Paste resin 1.2~2um Softening point: 75~85¡æ Thermal decomposition point: >100-120 ¡æ begins to degrade to produce hydrogen chloride. Solubility: insoluble in water, gasoline, alcohol, vinyl chloride. Soluble in ketones, esters and chlorocarbon solvents. Toxicity: non-toxic, odorless. Plasticizers. Plasticizers are the largest additive variety in the modern plastics industry and play a decisive role in promoting the development of the plastics industry, especially the polyvinyl chloride industry. Any liquid organic compound or low-melting-point solid that can be evenly mixed with the resin without undergoing chemical changes during mixing, but can reduce the glass transition temperature of the material and the melt viscosity during plastic molding and processing, and remain unchanged, or undergo chemical changes but can remain in the plastic product for a long time and change certain physical properties of the resin, and has these properties, is called a plasticizer. Plasticizers can reduce elastic modulus and tensile strength at break, improve elongation and elongation at break, improve softness, improve reversible bending strength, improve toughness and impact strength, reduce glass transition temperature, expand the applicable type of polymer at lower temperature, improve adhesion to various base materials, improve or reduce the sealing of films, improve lubrication and reduce friction, reduce static charging ability, improve surface gloss and appearance, plasticizer refers to an organic substance that increases the plasticizer of plastics, improves the fluidity of resins during molding, and makes products flexible. Commonly used are phthalates such as dioctyl phthalate (DOP), dinonyl phthalate (DINP), didecyl phthalate (DIDP)

Heat stabilizer

Polyvinyl chloride (PVC) itself has no obvious melting point, starts to soften at 80¡æ~83¡æ, and starts to flow when heated to 180¡æ. It starts to thermally decompose at more than 120¡æ, so it has begun to decompose and gradually char from yellow to black before reaching the flow and melting point! In this way, there is no way to make products out of polyvinyl chloride! This reaction of polyvinyl chloride is a chemical reaction, in which hydrogen chloride (HCl) is released after PVC is heated. According to this reaction, as long as HCl is not allowed to escape quickly, the product can be prevented from turning yellow and scorching during processing. So the heat stabilizer was born, and its function is to capture HCl and simulate the dehydrochlorination reaction! Calcium zinc composite stabilizer has attracted widespread attention from the country due to its environmental protection and non-toxic, low-toxic, high-efficiency, lead-free and cadmium-free development. Calcium zinc stabilizer is gradually expanding its market. Calcium zinc composite stabilizer is non-toxic, environmentally friendly and moderately priced. Viscosity reducer The so-called viscosity reducer is a popular name, that is, a diluent that reduces the viscosity of PVC paste resin. Its true identity is "dearomatized solvent oil". According to the boiling range, solvent oil can be divided into three categories: low boiling point solvent oil, such as 6# extraction solvent oil, with a boiling range of 60-90¡æ; medium boiling point solvent oil, such as rubber solvent oil, with a boiling range of 80-120¡æ; high boiling point solvent oil, such as paint solvent oil, with a boiling range of 140-200¡æ.

Colorant

PVC can be dyed into various colors. Oil-soluble organic pigments and inorganic pigments are mostly used, and the dosage is about 0.01% to 2% of the resin. ¢ö. The main function of fillers is to reduce costs, save PVC usage, and improve performance. Commonly used fillers include calcium carbonate, clay, diatomaceous earth, etc.

China's Development

China's polyvinyl chloride (PVC) development speed is amazing, new and expansion projects have been launched, production capacity has expanded rapidly, and output has increased significantly. From 1997 to 2006, the average annual growth rates of China's PVC production capacity and output were as high as 22.2% and 20.0% respectively.

In 2006, the total output of polyvinyl chloride resin in China was 8238583.86 tons;

In 2007, the total output of polyvinyl chloride resin in China reached 9716783.63 tons;

From January to May 2008, the total output of polyvinyl chloride resin in China was 4028666.03 tons;

From 2008 to 2012, the global market demand for polyvinyl chloride (PVC) is expected to grow rapidly at an average annual rate of 4%, especially in some developing countries, where the market demand will show a rapid growth rate.

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