Menstrual Cup Manufacturing Machine Lsr Injection Machine For Silicone Menstrual Cup

1, Characteristics of silica gel material

A. silicone raw materials are generally gelatinous, somewhat similar to rubber paste, colorless and translucent, tasteless.

B. Its main characteristics are high temperature resistance (300 ℃) and low temperature resistance (low-100 ℃), which are currently cold and high temperature resistant rubber; at the same time, it has excellent electrical insulation, high stability for thermal oxidation and ozone, and great chemical inertia. The disadvantages are low mechanical strength, poor oil resistance, solvent resistance and acid-base resistance, difficult to vulcanize, and expensive price. Service temperature: - 60 ℃ - + 200 ℃.

C. Operating temperature: as described above, it is generally set at - 40 ℃ - 200 ℃, and can reach 230 ℃ in a short time.

D. Aging problems:

The resistance to oil, acid and alkali is poor, which has little to do with the stress.

E. Bonding problem: before surface treatment, in addition to using silica gel products as adhesives to bond with silica gel parts, the bonding with other parts must be through surface activation, and the rubber surface can be cured to bond. All the materials that can react with rubber or make it cross-linked are collectively referred to as curing agent, also known as cross-linking agent. There are many kinds of sulfurizers, and they are still increasing. Sulfurizers used include sulfur, selenium, tellurium, sulfur compounds, metal oxides, peroxides, tree esters, quinones and amines.

F. Material hardness: according to the shore hardness, theoretically, the rubber parts can be selected between 10 and 80 degrees in the domestic market. The ones that can be easily found are generally 20 to 70 degrees, and the ones commonly used are 40 to 50 degrees.

Machine Model Parameter

How to judge the quality of silica gel products

01. Wear resistance

Wear resistance is possessed by the production and molding of silica gel products. The surface of silica gel products can suffer loss. Generally, good silica gel products rarely rub off the product surface due to external factors, which does not affect the appearance, character and color of performance. And the surface characters of silica gel products with poor quality are easy to fall off.

02, elasticity

Silica gel products have good elasticity, because the high elasticity mainly comes from the movement of silica gel molecular chain segment, so when buying silica gel products, first look at the elasticity of silica gel products to judge the quality.

03. Tear strength and tensile strength

Silica gel products with high tear strength have outstanding anti-destructive ability, long service life, and are not easy to be interfered by the external environment. Silica gel products with poor tear strength are generally prone to cracks in the tearing process, which will rapidly expand the cracking and lead to the phenomenon of damage under stress.

04. Fatigue resistance

When silica gel products are subjected to alternating stress (or strain), the phenomenon that the structure and properties of the material change is called fatigue. With the development of the fatigue process, the damage of silica gel products is called fatigue damage.

05. Hardness and constant elongation stress

It is an important index to reflect the rigidity of rubber material, which is necessary for silicone products to produce certain deformation