A well-established company itself also has a CD-ROM production line. After granulation, it is first certified on the company's production line, and it is proved to be feasible before it is provided to other customers. This approach can reduce the risk to a minimum.
V. Conclusion
1. The recycling of polycarbonate discarded discs is feasible, and the general direction of resource recycling and utilization is correct;
2. The environmental pollution of discarded CDs must be strictly controlled by chemical reaction methods, and the national scientific concept of development must be adhered to;
3. Protecting intellectual property rights and preventing the loss of intellectual property using CD-ROM as a carrier;
4. There is basically no environmental pollution in the method of grinding the entire piece of machinery. The quality of polycarbonate for recycling discs is relatively high, and the quality of finished products of pellets is better. It should be promoted;
5. Polycarbonate recovered from discarded discs can, in principle, be used for the processing of DVD-based information-less film bases to reduce copy processing costs without substantially affecting the quality of the discs;
6, CD-ROM copying factories and publishers choose discarded CD recycling polycarbonate CD-ROM discs, must be carefully faced with quality risks, currently can not be used to process CD-ROM discs, select high-quality suppliers can reduce the risk, but They must also strictly control their own;
7. In addition to the use of disc polycarbonate discarded as a whole piece of mechanical disc, a good granulation process is the best way to maintain and expand the recycling of polycarbonate. (Author: Yao Qin Yi)