Selection requirements for PVC plasticizers

(1) Select according to the degree of softness and hardness of the product. Generally, the addition amount of plasticizer for hard products is 0~5 parts, the addition amount of plasticizer for semi-hard products is 6~25 parts, and the addition amount of plasticizer for soft products is 30~70 parts. , The addition amount of plasticizer for paste products is 60-100 parts;

(2) Synergistic selection of main and auxiliary plasticizers;

(3) Choose according to the performance requirements of PVC products, such as whether non-toxic, cold-resistant, insulating, antibacterial, biodegradable, etc. are required;

(4) Considering the cost factors of reducing PVC products, cheap plasticizers such as epoxy fatty acid ester, epoxy soybean oil, DOTP, glyceride, etc. can be used.