Polystyrene foam has been widely used as packaging materials for precision instruments, alcohol, food and other products, but these packaging materials become waste products after use. At present, the annual demand of polystyrene foam plastic in China is about 1.5 million tons, and it is increasing at the rate of 10% every year, of which about 23% is abandoned. Because polystyrene foam waste is not easy to degrade in the natural environment, effective and rational use of waste polystyrene foam is an important analysis test
At present, some polystyrene foam raw materials are recycled by melt extrusion, but the energy consumption is high and the cost is high; Some use thermal cracking technology to produce styrene monomers, oil, and asphalt, but the process is complex, equipment investment is large, and it is not easy to promote and apply; Some also make them into adhesives and coatings, but the solvents used contain toxic solvents that are harmful to the environment, and the proportions of various solvents are not fixed, which has a negative impact on the stability of product quality and environmental protection
The scientific test uses the single factor test method and the orthogonal test method to select the optimal ratio of four environment-friendly solvents with fast dissolution rate and large dissolution amount for waste polystyrene foam. The adhesive made from this has a bonding strength of 2.30MPa for wood bonding pieces, and its preparation process is simple and does not produce secondary pollution, which is conducive to widespread promotion and application
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China