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How to Classify Acrylate Polymers?
Acrylate polymers can be divided into the following categories according to their chemical composition: methyl methacrylate (MMA)/acrylate copolymer, MMA/styrene copolymer, acrylonitrile/styrene and so on.
According to their functions, they are mainly divided into impact modifiers and processing aid. Impact modifiers mainly provide impact resistance of plastic products. Methyl methacrylate accounts for 10-20% o, acrylate accounts for 80-90% which is a core-shell structure with hard outside and soft inside.
Processing aid can be divided into three main types according to their molecular weight and viscosity.
1. Molecular weight is 0.5-1.0million, intrinsic viscosity is 1.0-2.2. This kind of processing aid be called lubricating processing aids. It has the same good metal peeling performance as OPE WAX. The difference is that it has good compatibility with PVC, so it will not precipitate.nomrla type K175,ACR175, our TL175.
2. Mlecular weight is 1.0-1.5 million, viscosity is 2.5-5.5. This kind of processing modifier is called accelerating plasticizing processing aids. It mainly promotes plasticizing, improves melt rheological properties, improves other additives dispersion, reduces plasticizing temperature and improves product appearance quality. normal type: ACR-401,K-120N,K-125,PA-21, like our TP401. TP20, TP125.
3. Molecular weight is more than 1.5 million, viscosity is 10-14, this kind of processing aids is called foaming regulator, because it has ultra-high molecular weight, winding on the PVC structure to form a strong network structure, greatly improve the strength of PVC melt, can effectively encapsulate foaming gas, prevent gas escaping, form a uniform honeycomb porous structure, improve product surface quality, improve high gloss. Normal type:ACR-530,TF100 TF200
Welcome to contact for more details:mandy, whatsapp 86 13563682728. mandyzhang@novistagroup.com/chemwf@gmail.com