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Difference between PMI foam and plastic foam.

Update:20-11-2020
Summary:

PMI Foam Rubber: A type of rubber. Also known as sponge […]

PMI Foam Rubber:

A type of rubber. Also known as sponge rubber. Vulcanized rubber with a spongy, porous structure. There are open holes, closed holes, mixed holes and micro-holes. Can be made into soft rubber or hard rubber products. Light weight, soft, flexible, not easy heat transfer. With anti-vibration, impact mitigation, thermal insulation, sound insulation, etc.. Made of synthetic rubber also has the characteristics of oil resistance, aging resistance, chemical resistance, etc. It is widely used in automobiles, aircraft, chemical and pharmaceutical industries. Widely used in automobiles, aircraft, chemicals, daily necessities and other industries, used as insulation, sound insulation, shockproof materials, as well as making seat cushions, mattresses, medical machinery, health supplies, sporting goods. It can be made from raw rubber by adding foaming agent (such as ammonium carbonate, urea, azo diisobutyronitrile, etc.) or concentrated latex by agitating the air and then vulcanized.

 

Plastic Foam:

It is a chemical material known as Expanded Polystyrene (EPS). Due to its light weight, strong, shock absorption, low moisture absorption, easy molding and good water resistance, heat insulation, low prices, etc., it is widely used in packaging, insulation, waterproof, heat insulation, shock absorption and other fields, is one of the most widely used plastics in the world today. It is one of the most widely used plastics in the world today. It can be used in the shockproof packaging of electrical appliances, instruments and meters, handicrafts and other fragile and valuable items, as well as the packaging of fast food.

 

Difference: Different materials have different characteristics and application areas.

 

 

 

 

What is polyurethane integral skinned PMI foam?

Self-skinning foam, also known as integral skin molded foam. This type of foam is different from ordinary semi-rigid foam. Usually, polyurethane (PU) semi-rigid foam is used as the surface material of plastics such as PVC or abs, and PU semi-rigid foam is filled into it to form a sandwich-like material, which is used as a decorative material in industries such as automobiles and furniture.

 

Self-skinning foam does not use other plastics as the surface material, but relies on the foaming components in the foaming molding, the one-time formation of the surface material and foam core material. In other words, the PU component is formed into a single foam product with a solid skin by a special process.

 

Its outer skin is thicker, about zero a few millimeters to 2.3mm, the strong skin before the porous structure underneath. The density of the skin is 1000-1200kg/m3, while the density of the core layer is several hundred kg/m3. PU skin mechanical properties are fully comparable with the olefin plastic skin, and some also exceed it, such as puncture resistance, etc. At present, the soft self-skinning PU skin is very thick, about a few millimeters to 2.3 mm, the strong skin only under the porous structure.

 

At present, the soft self-skinning PU foam products are used in automotive steering wheel, armrests, headrests, bicycle seats, motorcycle seats, armrests and headrests, door handles, baffles and bumpers.

 

Most of the polyester type PU products are used in the footwear industry to make all kinds of leather shoes, boots, mining shoes, riding boots and so on. Rigid self-bonded leather PU products are also known as "structural foam", which is used in the furniture industry to make doors, window frames, tables, chairs, computers, typewriters and pianos and other solid and beautiful frames, or used in sports equipment such as skis, surfboards, etc. Its application prospects are very optimistic. Its application prospects are very optimistic.