Method for measuring and calculating VOC (volatile organic compound) key emission parameters of automotive trim material

• Main Authors: BAI YUPING, XIAO YAO, ZHENG HONG, WANG CHANGBIN, CHEN SHULI, DIAO HONGJUN
• Format: Patent
• Language: Chinese; English
• Published: 10.06.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to a method for measuring and calculating VOC (volatile organic compound) key emission parameters of an automotive trim material, which comprises the following steps of: (1) putting the automotive trim material with the volume of Vm into a sampling bag, sealing and filling inert gas, and recording the inflation volume as V1; (2) heating the sampling bag at a constant temperature until the concentration of the VOC to be monitored is balanced, recording the equilibrium concentration as C1, and recording that each parameter in the sampling bag meets an equation at the moment; (3) supplementing a VOC pure substance to be monitored with the mass of M into the sampling bag, heating the sampling bag at a constant temperature until the concentration of the VOC is balanced again, recording the balanced concentration as C2 and the gas volume V2 in the sampling bag, and recording an equation 2 met by each parameter in the sampling bag at the moment; and (4) deriving a calculation formula of K and C