Why choose liquid silicone rubber for the maternal and ...

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As silicone is more and more accepted by people, food-grade liquid silicone rubber raw materials can replace conventional materials has become a future trend in the development and design of household goods, liquid silicone rubber applications are also more and more, gradually derived from the maternal and baby industry. Why choose liquid silicone rubber for mother and baby field?

Liquid silicone rubber is a highly active adsorbent material, an amorphous material, liquid silicone rubber is an environmentally friendly material, the products used in mother and baby products are food-grade certified raw materials products. Liquid silicone rubber material has good curing and material shrinkage, and chemical resistance, is insoluble in water and any solvent, and is non-toxic, tasteless, chemically stable, in addition to strong alkali, hydrofluoric acid does not react with any substance. Its safety is widely used not only in medical devices but also in the maternal and baby industry.

This will discuss the following seven aspects of liquid silicone rubber in maternal and baby products:

1. What is liquid silicone rubber?

Liquid silicone rubber is a non-toxic, heat-resistant, highly resilient flexible thermosetting material. LSR is a double liquid rapid vulcanization material with a platinum catalyst, which can be used for repetitive mechanical production by liquid injection molding process. Its products exhibit good thermal stability, cold resistance, and excellent electrical insulation properties, and do not produce toxic substances when burned. Therefore, it has become an irreplaceable material in the production design of health products, automobiles, baby products, medical products, diving products, kitchen utensils, and seals.

It is the product of co-hydrolysis of tetraalkoxysilane (Q unit) and trimethylalkoxysilane (M unit), which can be used as reinforcing material to prepare condensed liquid silicone rubber (LSR).

It can be used as a reinforcing filler for two-component addition adhesives such as RTV adhesive, HTV adhesive, and liquid silicone rubber (LSR).

It is a colorless and transparent liquid resin consisting of Vinyl MQ Organosilicone Resin and Vinyl Silicone Oil, which can be used for LSR, and also for other two-component additive adhesives.

It can be used as a special crosslinking agent for liquid silicone rubber LSR.

2. What are the features of liquid silicone molding?

Liquid injection molding is different from the characteristics of ordinary molded products:

(1) Liquid silicone rubber is a thermosetting material.

(2) Rheological behavior: low viscosity, fast curing, shear thinning, high coefficient of thermal expansion.

(3) Good fluidity, clamping force, and injection pressure are not high, but the injection accuracy is high;

(4) Exhaust design is relatively difficult, some products need to design the sealing vacuum structure, and mold precision requirements are high.

(5) The cylinder and casting system needs to design a cooling structure, and the mold needs to design a heating system.

Liquid silicone rubber is relative to the solid high-temperature vulcanization of silicone rubber, which is liquid rubber, with good fluidity, fast vulcanization, more security and environmentally friendly, and can fully meet the requirements of food grade. Liquid silicone rubber can be used for trademarks, products, pacifiers, medical supplies, coating, impregnation and infusion, and other purposes. The application of liquid silicone rubber in the maternal and child industry is very wide, relative to other industries, and its requirements are also the most stringent.

3. What are the advantages of liquid silicone rubber?

(1) Excellent transparency, and tear strength.

(2) High resilience

(3) Anti-yellowing;

(4) Thermal stability

(5) Good water resistance and air permeability;

(6) Heat aging resistance, weather resistance;

(7) Moderate viscosity, easy to operate, high product transparency.

4. What is the difference between liquid silicone and solid silicone?

(1) Appearance

A. Liquid silicone: uncured liquid silicone rubber, with fluidity.

B. Solid silicone: solid, no mobility.

(2) Application Scene

A. Liquid silicone: industrial supplies, household goods, medical industry food supplies, etc., can be in direct contact with the human body and food.

B. Solid silicone: generally used in intelligent hardware, 3C digital, and non-mobile phone fields.

(3) Environmental safety

A.Liquid silicone: platinum vulcanization, non-toxic and tasteless, belongs to the safety of food-grade materials.

B.Solid Silicone: Peroxide vulcanized, with a vulcanizing agent or masking the odor of vulcanizing agent, belongs to environmental protection material.

(4) Production method

A. Liquid Silicone: LSR injection molding process through injection molding machine is fully automated; short production cycle; materials without the need for front-end processing, more efficient, more labor-saving; can be used for two-color injection.

B. Solid silicone: need to batch, refining, cutting, manual feeding, and other processes, relatively low efficiency.

5. Why is liquid silicone rubber better than solid silicone?

For more information, please visit OSi Silicone.

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When compared with solid silicone, the advantages of liquid silicone rubber parts are very significant.

(1) Safety

Liquid silicone rubber LSR can pass the food grade c