The quality requirements of modern product production c […]
The quality requirements of modern product production can not reduce the requirements on packaging materials. Plastic containers, as common packaging materials for chemical products and other products, need to be modified in essence to enhance the packaging effect.
Plastic modification is to improve or increase the function of large-volume general-purpose resin produced by petrochemical enterprises through physical, chemical and mechanical methods, such as electricity, magnetism, light, heat, ageing resistance, flame retardancy, mechanical properties, etc. The function used in special environmental conditions.
Modified plastics are a plastics industry with a wide range of technologies and high technology content. The plastic modification technology – filling, blending and reinforcement modification – is the raw material and molding process for almost all plastic products. From the production of raw resin to modified plastic masterbatch from various specifications and varieties, in order to reduce the cost of plastic products and improve their functionality, plastic modification technology is indispensable.
The addition modification refers to a modification method in which a small molecule inorganic substance or an organic substance is added to a polymer (resin) to obtain a desired property by physical or chemical action. Plastic addition modification is an early modification method. It has obvious modification effect, simple process and low cost. Therefore, it is widely used, accounting for more than two-thirds of the total plastic modification. The factors affecting the modification of plastic containers in this technology are mainly the selection and use of additives.
Blending modification refers to a modification method in which one or more other resins (including plastics and rubber) are incorporated into a resin to achieve the properties of the original resin. The impact of this method is mainly reflected in the setting and detail control of technical parameters.