Modified plastics are materials with a uniform appearance obtained by filling, toughening, strengthening, blending, alloying and other technical means, with primary form resins as the main component and additives or other resins that can improve the mechanical, rheological, combustion, electrical, thermal, optical, magnetic, and other properties of the resin as auxiliary components.
Market size of modified plastics
Modified plastics, as an important component in the field of new chemical materials, have also been listed as one of the key technological fields for national development. From 2018 to 2020, the market size of modified plastics in China increased from 225 billion yuan to 293.5 billion yuan, with a compound annual growth rate of 14.21%. The market size of modified plastics may reach 415.2 billion yuan in 2022.
Main Segments of Modified Plastics
1. Flame retardant resins
Flame retardant resin based flame retardant plastic products can greatly reduce the risk of fire in situations such as short circuits, overloads, and water immersion.
2. Reinforced and toughened resins
The reinforced and toughened resin category is mainly divided into weather resistant and toughened PP special materials, glass fiber reinforced thermoplastic and other products.
1) Weathering and toughening PP special material
Weather resistant and toughened PP special material is a new type of polypropylene material with engineering plastic properties. It has advantages such as good low-temperature toughness, low molding shrinkage, high rigidity, and strong weather resistance. It is mainly used in outdoor environments that require weather resistance and ultraviolet radiation. Its main consumer groups include home appliance enterprises, automotive parts enterprises, etc.
2) Glass fiber reinforced thermoplastic
The main products include glass fiber reinforced AS/ABS, glass fiber reinforced PP, glass fiber reinforced nylon, glass fiber reinforced PBT/PET, glass fiber reinforced PC, glass fiber reinforced PPE/PPS, etc. Its main consumer groups include computer parts enterprises, mechanical parts enterprises, electric tool enterprises, lighting enterprises, etc.
3. Plastic alloys
Plastic alloys are mainly divided into PC alloys, PVC alloys, and polyester alloys.
1) PC alloy
It has characteristics such as high impact strength, anti creep, heat resistance, low water absorption, non-toxic, and excellent dielectric properties. Mainly used in automotive instrument panels, computer and office automation equipment, power tool casings, cellular phones, etc.
2) PVC/ABS alloy
It is produced using PVC and ABS as the matrix and adding various modifiers such as toughening agents, lubricants, stabilizers, flame retardants, etc. It has excellent mechanical properties, weather resistance, processing rheological properties, good surface gloss of products, good injection molding and extrusion effects, and is an extremely cost-effective alloy material. It can mainly replace flame retardant and weather resistant ABS, PC, etc., and is applied in home appliance shells, electrical switches, meter shells, lighting materials, communication networks, building materials, etc.
3) Polyester alloy
It has excellent mechanical properties (fatigue resistance), dimensional stability, resistance to chemical reagents, and ability to withstand environmental stress cracking. Mainly used in fields such as automobiles, home appliances, and electric tools.