{"id":"wpc-tech100-article-076-en","slug":"dsc-crystallinity-calculations-in-filled-polymers","locale":"en","url":"https://woodplasticcomposite.net/guides/dsc-crystallinity-calculations-in-filled-polymers/","title":"DSC crystallinity calculations in filled polymers","answer":"Crystallinity calculations for a filled polymer need a clearly stated basis. Normalising a thermal result by total composite mass can lead to a different interpretation from normalising by polymer mass.","author":"NFC & WPC Knowledge Reference","faqIds":["wpc-tech100-faq-076-en"],"tagIds":[],"noindex":false,"related":["wpc-tech100-article-077-en"],"version":1,"modified":"2026-10-15","reviewer":"","sections":[{"id":"technical-context","text":"The calculation may require an appropriate reference enthalpy and treatment of the relevant thermal events. Uncertainty in polymer fraction also affects the estimate. A neat-polymer convention cannot always be transferred without checking the composite composition.","heading":"Technical context","references":[],"url":"https://woodplasticcomposite.net/guides/dsc-crystallinity-calculations-in-filled-polymers/#technical-context"},{"id":"verification-plan","text":"Document the equation, reference value and mass basis. State the thermal cycle used and any correction applied. Compare materials consistently and retain the underlying traces so the calculation can be reviewed.","heading":"What to measure and document","references":[],"url":"https://woodplasticcomposite.net/guides/dsc-crystallinity-calculations-in-filled-polymers/#verification-plan"},{"id":"practical-decision","text":"Do not equate a higher estimated crystallinity with universally better WPC. The development decision must consider the actual mechanical and processing requirements. Analytical values should support a specific explanation rather than replace finished-product verification.","heading":"Implications for development and specification","references":[],"url":"https://woodplasticcomposite.net/guides/dsc-crystallinity-calculations-in-filled-polymers/#practical-decision"},{"id":"reading-scope","text":"Experimental thermal analysis of defined composite compositions. Use the linked work as related reading. The practical checks above are editorial recommendations, not reported test results or a substitute for product qualification.","heading":"Related reading and evidence limits","references":[1],"url":"https://woodplasticcomposite.net/guides/dsc-crystallinity-calculations-in-filled-polymers/#reading-scope"}],"seoTitle":"DSC crystallinity calculations in filled polymers | WPC Reference","topicIds":[],"published":"2026-10-15","tableText":"Review step | Evidence to retain\nMaterial and geometry | Exact specimen or product identity\nVerification | Method, conditions and individual observations\nDecision | Approved scope and documented limitations","takeaways":"The calculation may require an appropriate reference enthalpy and treatment of the relevant thermal events.\nDocument the equation, reference value and mass basis.\nDo not equate a higher estimated crystallinity with universally better WPC.","aiAssisted":true,"categoryId":"wpc-tech100-category-3","reviewedAt":"","change_note":"New focused technical draft; not a product certification or production recipe.","description":"Crystallinity calculations for a filled polymer need a clearly stated basis.","heroImageId":"","referenceIds":["wpc-tech100-ref-thermal"],"review_status":"AI-assisted English editorial draft. Human technical review has not been recorded.","table_caption":"Evidence checklist for dsc crystallinity calculations in filled polymers","seoDescription":"Crystallinity calculations for a filled polymer need a clearly stated basis.","translationGroup":"wpc-tech100-076-2026","references":[{"url":"https://doi.org/10.3390/ma12060881","type":"web","title":"Thermal properties of WPC with different compositions","noindex":false,"accessed":"2026-10-14","seoTitle":"Thermal properties of WPC with different compositions","publisher":"Materials","description":"Related reading; scope and limitations are identified in each article.","seoDescription":"Related reading; scope and limitations are identified in each article."}],"faqs":[{"question":"What evidence is needed for dSC crystallinity calculations in filled polymers?","answer":"Document the equation, reference value and mass basis. State the thermal cycle used and any correction applied. Compare materials consistently and retain the underlying traces so the calculation can be reviewed."}]}