After entering the 21st ce✔αε∞ntury, due to the increasingly strict r∞✘£÷equirements for global environmental protection,☆ε₽ the regulations restricting heavy metal hea$₹γ↑t stabilizers are increasin↔₽←gly intensified, so that the production and co>Ωnsumption of stabilizers are further dev÷¶eloping in the direction of non-toxic, lγ€≤ow toxicity and compound effect, lead-free and↕₹ cadmium-free has attracted the attentionπβ of developed countries, and alter©★native products continue to appea σr and apply, the application™♥ of lead, cadmium, especiallyΩ≤ cadmium heat stabilizers has gradually declin®ε•>ed, and some non-toxic or lλ≥↔ow-toxicity heat stabilizers such as organotin c♣ →ompounds, calcium and zinc soap salts, rare ear♥γδth heat stabilizers, etc.
Although in recent years, theε→ re are many deficiencies and gaps in thπσ✔δe thermostable level of compound, non-to♣© xic and low-toxicity in China, such asε→ fewer varieties and small produ¶Ωction scale. The production and applic≥ation of new heat stabilizers &♠φ in China are far from meeting the ±£ φdevelopment of domestic PVC wood plastic, and λ the heat stabilizers required for some re☆≤↔≠latively high-end products main<∞↓ly rely on imports. The rapid developmenδ↕t of PVC wood plastic in China provi≥↕des a good market guarantee ←δ®and broad development space for the develoσ¶✘pment of the heat stabilizer industry, and also §£♣ puts forward higher requirements for the&← heat stabilizer industry. To strengthen ↑♥₩the research and development o↔↔↕λf new thermal stabilizers in China, PVC w×↔↑ood plastic thermal stabilπφizers should pay attention to"↔© the following points:
1. Strengthen the improvement of the o§≥riginal lead-free cadmium-fr¶☆ee calcium and zinc heat s☆↑£tabilizer to improve the quality of the originalΩ¶≠© products;
2. According to the source of raw mα€ ×aterials and market distribution, ÷&gradually establish a centralized lar✔←↕∑ge-scale auxiliary production plant gr←≤oup;
3. Cooperate with the development a'β₹nd production of other PVC wood plastic addi♣≈∏tives to further reduce resource waste ₹π≥σand environmental dyeing, and pro★♦×mote the sustainable devel♠δopment of the "green" additives in€dustry.
Source: Global Plasticization Network