1. Comfortable wearing, long-term wearing will not cause skin tension. Conducive to blood circulation.

2. Does not contain amino compounds and other harmful substances, rarely cause allergies.

3. Strong tensile strength, puncture resistance, not easy to break.

4. Good sealing, the most effective to prevent dust from escaping outward.

5. Excellent chemical resistance and resistance to certain pH.

6. Silicon-free, with certain antistatic properties, suitable for the production needs of the electronics industry.

7. The chemical residue on the bottom surface, the ion content and the small particle content at the bottom are suitable for strict clean room environment.

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

1. PVC paste resin

Polyvinyl chloride (PVC) is a polymer compound formed by polymerizing vinyl chloride monomer (VCM). The degree of polymerization can be controlled by the reaction temperature and the 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 ℃): 1.045 ~ 1.463J / (g ℃) , Thermal conductivity: 0.1626W / (mk) Refractive index: nD20 = 1.544 Particle size: dense (XJ) type 30 ~ 100um loose (SG) type: 60 ~ 150um paste resin 1.2 ~ 2um softening point: 75 ~ 85 ℃ heat Decomposition point:> 100-120 ℃ begins to degrade Hydrogen chloride Solubility: insoluble in water, gasoline, ethanol, vinyl chloride. Easily soluble in ketones, esters and chlorocarbon solvents. Toxicity: non-toxic

2. Plasticizer

Plasticizers are the most various types of additives in the modern plastics industry and play a decisive role in promoting the development of the plastics industry, especially the PVC industry. Where it can be evenly mixed with the resin, no chemical changes will occur during the mixing process, but it can reduce the glass transition temperature of the material and the melt viscosity during the plastic molding process, and remain unchanged, or can be used in plastic products Although the chemistry has changed for a long time. It can change some physical properties of the resin. Liquid organic compounds or low-melting solids with these characteristics are called plasticizers. Plasticizers can reduce the elastic modulus and tensile strength at break, increase elongation and elongation at break, increase flexibility, and increase reversible bending strength.

3. Heat stabilizer

Polyvinyl chloride (PVC) itself has no apparent melting point. It begins to soften at 80 ° C ~ 83 ° C and begins to flow when heated to 180 ° C. It begins to decompose when the temperature is above 120 ° C, so it has begun to decompose and gradually scorched from yellow to black. It has reached fluidity and melting point! In this way, PVC cannot manufacture products! The reaction of polyvinyl chloride is a chemical reaction. This is the reaction that releases hydrogen chloride (HCl) after heating PVC. According to this reaction, as long as HCl is not released quickly, yellowing and enlargement during product processing can be prevented. Therefore, the thermal stabilizer was born, its role is to catch up with the HCl reaction in preparation for dehydrochlorination! Calcium-zinc composite stabilizer has attracted widespread national attention due to the development of environmental protection, non-toxicity, low toxicity, high efficiency, lead-free and cadmium-free. Calcium zinc stabilizer is gradually expanding the market. Calcium-zinc composite stabilizer is non-toxic, environmentally friendly and reasonable in price

4. Viscosity reducer

The so-called viscosity reducer is a popular name, that is, a thinner that reduces the viscosity of the PVC paste resin material. Its true identity is "dearomatic solvent oil" divided by boiling range. Solvent oil can be divided into three categories: low boiling point solvent oil, such as 6 # extraction solvent oil, boiling range is 60-90 ℃; medium boiling point solvent oil Such as rubber solvent oil, the boiling range is 80-120 ℃; high boiling point solvent oil, such as paint solvent oil, the boiling range is 140-200 ℃.

5. Colorant

PVC can be dyed in various colors. Multi-purpose oil-soluble organic pigments and inorganic pigments, the dosage is about 0.01% to 2% of the resin. Ⅵ. The main function of the filler is to reduce costs, save PVC and improve performance. Commonly used fillers include calcium carbonate, clay, diatomaceous earth, etc.