Production of Structural Particleboard of <i>Mimosa Scabrella</i> Benth With Lignin Phenol-formaldehyde Resin

Iwakiri, Viviane Teixeira; Trianoski, Rosilani; Razera, Dalton Luiz; Iwakiri, Setsuo; Rosa, Thiago Souza da

doi:10.1590/2179-8087.100617

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Original Article, Wood Science and Technology • Floresta Ambient. 26 (3) • 2019 • https://doi.org/10.1590/2179-8087.100617 linkcopy

Production of Structural Particleboard of Mimosa Scabrella Benth With Lignin Phenol-formaldehyde Resin

Produção de painel aglomerado estrutural de Mimosa scabrella Benth com resina lignina-fenol-formaldeído

Authorship SCIMAGO INSTITUTIONS RANKINGS

The objective of this work was to evaluate the feasibility of using lignin-phenol-formaldehyde resin in the production of Mimosa scabrella Benth (bracatinga) structural particleboard. The boards were produced with nominal specific mass of 0.75 and 0.95 g/cm³, 10% and 12% of phenol-formaldehyde and lignin-phenol-formaldehyde resins, with 10 and 12 min of pressing time. The boards quality was evaluated by means of the following physical-mechanical tests: specific mass, compression ratio, water absorption and thickness swelling after 2 and 24 hours soaking, perpendicular traction, static bending and screw pulling. Positive interactions of specific mass, resin content and pressing time were observed in the properties of the boards produced. The evaluation of the properties results based on the requirements of EN 312 (type P5) standard indicated the feasibility of using lignin-phenol-formaldehyde resin in the production of particleboard of Mimosa scabrellla for structural applications.

Keywords:
phenolic resin; bracatinga; structural boards

Treatment	Type of resin	Panel density (g/cm³)	Resin Content (%)	Pressing time (min)
T1	FF	0.75	10	10
T2		0.75	12	15
T3		0.95	10	10
T4		0.95	12	15
T5	LFF	0.75	10	10
T6		0.75	12	15
T7		0.95	10	10
T8		0.95	12	15

Treatment	ME (kg.m^–3)	RC
T1 – FF/dp750/tr10/tp10	730 b (4.42)	1.40 b (4.42)
T2 – FF/dp750/tr12/tp15	740 b (4.70)	1.42 b (4.70)
T3 – FF/dp950/tr10/tp10m	910 a (3.95)	1.75 a (3.95)
T4 – FF/dp950/tr12/tp15	910 a (5.36)	1.75 a (5.36)
T5 – LFF/dp750/tr10/tp10	730 b (4.47)	1.41 b (4.47)
T6 – LFF/dp750/tr12/tp15	740 b (5.44)	1.44 b (5.44)
T7 – LFF/dp950/tr10/tp10m	910 a (5.55)	1.76 a (5.55)
T8 – LFF/dp950/tr12/tp15	910 a (5.46)	1.75 a (5.46)

Treatment	WA 2 h (%)	WA 24 h (%)	TS 2 h (%)	TS 24 h (%)
T1 – FF/dp750/tr10/tp10	18.70 a (20.65)	44.49 a (10.87	4.93 cd (22.52)	12.55 bc (13.50)
T2 – FF/dp750/tr12/tp15	13.06 c (14.53)	36.18 b (8.33)	4.55 d (19.58)	10.82 d (9.80)
T3 – FF/dp950/tr10/tp10m	8.00 d (15,82)	25.00 cd (13.38)	4.51 d (24.65)	10.89 d (17.31)
T4 – FF/dp950/tr12/tp15	8.03 d (16,92)	24.90 cd (15.24)	7.18 ab (19.11)	11.49 cd (10.07)
T5 – LFF/dp750/tr10/tp10	15.86 ab (18.38)	42.90 a (5.92)	5.95 c (13.63)	13.3 b (14.06)
T6 – LFF/dp750/tr12/tp15	13.86 bc (21,62)	34.69 b (9.65)	4.23 d (12.38)	10.14 d (5.33)
T7 – LFF/dp950/tr10/tp10m	8.83 d (16,60)	28.79 c (14.25)	8.22 a (18.44)	15.59 a (9.80)
T8 – LFF/dp950/tr12/tp15	6.71 d (14,69)	23.24 d (13.75)	6.25 bc (15,18)	10.57 d (13.90)

Treatment	WA 2 h (%)	WA 24 h (%)	TS 2 h (%)	TS 24 h (%)
Type of resin
FF	11.47 a (38.58)	32.67 a (28.95)	5.17 b (28.85)	11.44 b (14.10)
LFF	11.70 a (36.61)	33.21 a (23.71)	6.06 a (29.10	12.64 a (20.89)
Density
750 kg.m^-3	15.09 a (22.17)	39.79 a (14.75)	4.88 b (21.55)	11.74 a (16.03)
950 kg.m^-3	8.00 b (18.16)	25.69 b (15.95)	6.48 a (29.14)	12.28 a (20.67)
Resin percentage
10%	12.42 a (39.58)	35.37 a (27.44)	5.79 a (31.13)	13.05 a (18.40)
12%	10.69 b (33.78)	30.26 b (27.72)	5.38 a (28.30)	10.79 b (10.62)
Pressing time
10 min	12.42 a (39.58)	35.37 a (27.44)	5.79 a (31.13)	13.05 a (18.40)
15 min	10.69 b (33.78)	30.26 b (27.72)	5.38 a (28.30)	10.79 b (10.62)

Treatment	MOR (MPa)	MOE (MPa)	PT (MPa)	SPR-T (N)	SPR-S (N)
T1 – FF/dp750/tr10/tp10	12.36 d (15.62)	2,040 b (11.05)	0.69 e (12.33)	1,191 d (16.46)	1,123 d (11.27)
T2 – FF/dp750/tr12/tp15	18.86 bc (18.51)	3,000 a (16.41)	1.58 a (10.82)	1,690 c (14.37)	1,407cd (9.27)
T3 – FF/dp950/tr10/tp10m	22.13 a (11.85)	3,083 a (8.96)	0.90 cd (11.56)	2,476 b (3.24)	2,140 b (8.02)
T4 – FF/dp950/tr12/tp15	25.35 a (11.39)	3,006 a (7.63)	0.96 c (9.38)	2,879 a (5.29)	2,574 a (9.59)
T5 – LFF/dp750/tr10/tp10	11.85 d (14.11)	1,782 b (12.84)	0.79 cde (13.59)	1,132 d (15.01)	1,106 c (18.86)
T6 – LFF/dp750/tr12/tp15	18.40 c (19.03)	3,043 a (16.75)	1.26 b (23.69)	1,315 cd (22.23)	1,598 c (14.79)
T7 – LFF/dp950/tr10/tp10m	21.99 ab (14.11)	2,871 a (11.20)	0.72 de (9.87)	2,498 ab (11.01)	2,330 ab (14.13)
T8 – LFF/dp950/tr12/tp15	25.41 a (9.39)	2,888 a (7.17)	1.21 b (25.36)	2,597 ab (4.26)	2,473 ab (5.49)

Treatment	MOR (MPa)	MOE (MPa)	PT (MPa)	SPR-T (N)	SPR-S (N)
Type of resin
FF	19.68 a (27.97)	2,795 a (19.13)	1.03 a (33.61)	2,059 a (33.66)	1,811 a (33.71)
LFF	18.62 a (30.11)	2,609 a (24.36)	0.99 a (32.62)	1,821 a (38.87)	1,823 a (33.25)
Density
0.75 g/cm³	15.58 b (27.62)	2,482 b (27.63)	1.07 a (37.70)	1,332 b (23.15)	1,309 b (20.62)
0.95 g/cm³	23.56 a (13.97)	2,973 a (9.19)	0.95 a (25.50)	2,614 a (9.08)	2,371 a (11.88)
Resin Content
10%	17.00b (32.94)	2,436 b (21.16)	0.78 b (15.77)	1,824 a (38.41)	1,675 a (36.56)
12%	21.40 a (21.36)	2,995 a (13.32)	1.25 a (25.41)	2,077 a (33.55)	1,971 a (28.56)
Pressing time
10 min	17.00b (32.94)	2,436 b (21.16)	0.78 b (15.77)	1,824 a (38.41)	1,675 a (36.56)
15 min	21.40 a (21.36)	2,995 a (13.32)	1.25 a (25.41)	2,077 a (33.55)	1,971 a (28.56)

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[1] FF = phenol-formaldehyde resin; LFF = lignin phenol formaldehyde resin.