Insulative products having bio-based binders
a bio-based, binder-based technology, applied in the direction of synthetic resin layered products, protein coatings, pipes, etc., can solve the problems of inability to use formaldehyde scavengers in general, unstable urea-extended resoles, and inability to meet the needs of workers, etc., to achieve convenient use, low cost, and save time and money
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example 1
[0095]The binder formulations set forth in Table 4 were utilized to form handsheets in the manner described in detail below. The nonwoven fiberglass handsheets were dried and cured for three minutes at 400° F. The tensile strength, the Loss on Ignition (LOI), and the tensile strength divided by the LOI (tensile strength / LOI) for each sample was determined under ambient and steam conditions. The tensile strength was measured using Instron. The loss on ignition (LOI) of the reinforcing fibers is the reduction in weight experienced by the fibers after heating them to a temperature sufficient to burn or pyrolyze the organic size from the fibers. The loss on ignition was measured according to the procedure set forth in TAPPI T-1013 OM06, Loss on Ignition of Fiberglass Mats (2006). To place the handsheet in a steam environment, the handsheets were placed in an autoclave at 240° F. at a pressure between 400 and 500 psi for 30 minutes.
[0096]The handsheets were made according to the followin...
example 2
[0099]The binder formulations set forth in Table 6 were utilized to form handsheets according to the procedure set forth in Example 1. The nonwoven fiberglass handsheets were dried and cured for three minutes at 400° F. The tensile strength, the loss on ignition (LOI), and the tensile strength divided by the LOI (tensile strength / LOI) for each sample was determined under ambient and steam conditions. The steam conditions were identical to that set forth in Example 1. In addition, the loss on ignition and tensile strength of each the samples were measured according to the procedures described in Example 1. The results are set forth in Table 7. It is to be noted that the weights in Table 6 are expressed in grams (g).
TABLE 6Sample 1Sample 3Sample 410%20%20%Citric AcidSample 2Citric AcidCitric AcidComponent5% SHPControl5% SHP5% SHPMaltodextrin79.9(DE 11.0)Maltodextrin79.9(DE 18.0)Maltodextrin89.8(DE 7.5)gamma-amino-13.713.713.713.7propyltri-hydroxy-silane (1.24%solution)Citric9.619.219....
example 3
[0101]The binder formulations set forth in Table 8 were utilized to form handsheets according to the procedure set forth in Example 1. The nonwoven fiberglass handsheets were dried and cured for three minutes at 400° F. The tensile strength, the LOI, and the tensile strength / LOI for each sample were determined under ambient and steam conditions. The steam conditions were identical to that set forth in Example 1. In addition, the loss on ignition and tensile strength of each the samples were measured according to the procedures described in Example 1. The results are set forth in Table 9. It is to be noted that the weights in Table 8 are expressed in grams (g).
TABLE 8Sample 270:30Sample 5Sample 1MD-CASample 3Sample 470:3070:30w / 5% SHP70:3070:30MD-CAMD-CAand 10%MD-CAMD-CAw / 3% Li-Componentw / 5% SHPH3PO4w / 4% H3PO2w / 5% AlCl3CarboxylateMaltodextrin45.142.646.045.152.0(DE 11.0)Citric Acid19.314.219.219.323.3gamma-10.211.210.310.211.5aminopropyl-trihydroxy-silane (1.24%solution)Catalyst4.14....
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