Skip to main content

Official Journal of the Japan Wood Research Society

Table 1 Specifications of resins used in the experiments

From: Dynamic wettability and curing characteristics of liquefied bark-modified phenol formaldehyde resin (BPF) on rice straw surfaces

Specification

Resins used in the experiments

BPF resin

PMDI

BPF–PMDI mixturea

PF

Color

Dark red to black

Dark brown

Dark red to black

Pale red-brown to maroon

Nonvolatile content (%)

50

100

53

48

pH value

11.56

7.86

11.61

11.45

Viscosity (mPa s)/20 °C

430

315

685

325

  1. aThe mass ratio of BPF to PMDI is 32:1 (the glue spreading of BPF is 16 and PMDI is 0.5 % based on the absolute dried rice straw)