One article to understand the opportunity of new downstream materials of acrylic acid

Compared with the huge demand, the domestic ACM production scale is small, the equipment is rudimentary, the stability is poor, and the variety is small, which is far from meeting the demand for ACM from the development of the automobile industry .
Most of our sealing products factory used ACM mainly dependent on imports, the annual import volume in 4000 over tons, import prices in the 6 million to 7 million, while current ACM production costs no more than 3 million profit a larger space.

5 .
Acrylonitrile - styrene - acrylate copolymer ( ASA or AAS )

The structure of ASA and ABS are similar, and because ASA uses acrylate rubber without unsaturated double bonds instead of polybutadiene rubber with unsaturated double bonds in ABS , it can resist degradation, aging, and aging caused by ultraviolet radiation.
Fading, it can also resist oxidation in the atmosphere and the decomposition or discoloration caused by high temperature during processing has a strong guarantee, which greatly improves the anti-aging and weather resistance of the material.

The main application areas of ASA resin include synthetic resin tiles, electrical and electronic housing materials, automotive exterior materials, outdoor building materials, etc.
Domestic ASA resin manufacturers are mainly foreign-funded enterprises, and a few companies can produce ASA resin, but their production capacity is relatively small, product quality is also unstable, and a large amount of demand depends on imports.

6 .
Ethylene - acrylic acid copolymer

Ethylene - acrylic acid copolymer has good low temperature performance and flexibility, excellent resistance to bending cracking and environmental stress cracking, and has greater flexibility.
Ethylene - acrylic acid copolymers can replace ethylene - vinyl acetate copolymer ( EVA ) in some applications .
At present, the annual domestic consumption of EVA is about 1.
5 million tons, and the import volume is about 1 million tons.
Compared with EVA , EAA has higher thermal stability, is a non-corrosive product, and can adapt to a wider range of processing conditions.

The main application areas of ethylene - acrylic acid copolymers include high-voltage cable shields, hoses, packaging materials, adhesives, low-temperature sealing rings, household appliance parts, and can also be blended with olefin polymers or engineering plastics to improve their Low temperature flexibility, environmental stress cracking resistance and impact resistance.
Currently, the most widely used ethylene - acrylic acid copolymers are mainly ethylene - ethyl acrylate ( EEA ).

EEA is a soft thermoplastic with lower crystallinity than PE .
Generally, it contains 5-20% ethyl acrylate ( EA ) .
As the EA content increases, the density and softness of the copolymer increase accordingly.
EEA has good low temperature performance and flexibility, good thermal stability during processing, good compatibility with fillers, excellent resistance to bending cracking and environmental stress cracking, and great flexibility.
Cross-linking of EEA and organic peroxide can improve heat resistance, creep resistance, and solvent resistance.

7 .
Vinyl Chloride - Acrylate Copolymer

Vinyl chloride - acrylate copolymer is a copolymer resin with excellent comprehensive properties.
Compared with ordinary PVC resin, vinyl chloride - acrylate copolymer has excellent characteristics such as good impact performance and easy processing.
According to the different copolymerization methods and copolymer structures of vinyl chloride and acrylate, the current domestic industrialized production of vinyl chloride - acrylic acid copolymers mainly include vinyl chloride - acrylate random copolymers and vinyl chloride - acrylate graft copolymers.
.

Vinyl chloride-acrylate random copolymers are mostly produced by suspension polymerization.
As the content of acrylate in the copolymer increases, the porosity, plasticizer absorption, glass transition temperature of the copolymer particles decrease, and the impact strength increases.
.

Vinyl chloride-acrylate graft copolymers are mostly prepared by first preparing core-shell acrylic latex ( ACR ), which is directly added to the vinyl chloride suspension polymerization system for in-situ polymerization to prepare impact-resistant PVC resins.
In addition, ACR impact modifier can also be added during PVC processing to make copolymer materials.
The most representative product is acrylic copolymer polyvinyl chloride ( AGR ), which is mainly used as water supply pipes.
It has the reputation of " plastic steel pipe " and has excellent impact resistance, compression resistance and earthquake resistance.

At present, domestic water supply pipes are still mainly made of steel, and a small amount of PE pipes and PVC pipes are used, while AGR pipes are used as urban water supply pipe networks and water supply pipes in buildings.
They are more hygienic than metal materials, and more hygienic than PE and PVC pipes Stable and reliable, with long service life, low temperature resistance, and impact resistance, it will have a good development prospect in the process of residents' consumption and quality of life upgrades.