In thisstudy,mediumdensityfiberboar

In thisstudy,mediumdensityfiberboardpanelswereproducedbyaddingdifferentratiosofsome
amine compoundstoureaformaldehyderesin,whichhad1:1.17molratios.Theformaldehyde
contents,physical,andmechanicalpropertiesofmediumdensityfiberboardpanelsweredetermined
accordingtoENstandardmethods.
In thisstudy,itwasdeterminedthattheformaldehydeemissionemittedfrommediumdensity
fiberboardpanelsdecreasedbyaddingurea,propylamine,methylamine,ethylamine,andcyclopenty-
lamine solution.Itwasfoundthatthewaterabsorptionandthicknessswellingvaluesincreased
slightly;however,theinternalbondstrength,modulusofrupture,andmodulusofelasticityofmedium
densityfiberboardpanelsalsoincreasedsubstantially,butthesepropertiesofmediumdensity
fiberboardpanelsdecreasedbyaddinghigherratiosofureasolution.Itwasfoundthatthe
formaldehydeemissionofmediumdensityfiberboardpanelsdecreased16.5%byusinga16%rateof
urea formaldehyderesinand0.8%rateofureaandethylaminesolution.Thesedecreaseswere
determinedas57%forcyclopentylaminesolutionaddition,41%forpropylaminesolutionaddition,
and 48%formethylaminesolutionaddition.
&

ผลลัพธ์ (ไทย) 1:

ใน thisstudy, mediumdensityfiberboardpanelswereproducedbyaddingdifferentratiosofsomeบัม compoundstoureaformaldehyderesin, whichhad1:1.17molratios Theformaldehydeเนื้อหา กายภาพ andmechanicalpropertiesofmediumdensityfiberboardpanelsweredeterminedaccordingtoENstandardmethodsใน thisstudy, itwasdeterminedthattheformaldehydeemissionemittedfrommediumdensityfiberboardpanelsdecreasedbyaddingurea, propylamine, methylamine, ethylamine, andcyclopenty-lamine โซลูชั่น Itwasfoundthatthewaterabsorptionandthicknessswellingvaluesincreasedเล็กน้อย อย่างไรก็ ตาม theinternalbondstrength, modulusofrupture, andmodulusofelasticityofmediumdensityfiberboardpanelsalsoincreasedsubstantially, butthesepropertiesofmediumdensityfiberboardpanelsdecreasedbyaddinghigherratiosofureasolution Itwasfoundthattheformaldehydeemissionofmediumdensityfiberboardpanelsdecreased16.5%byusinga16%rateofformaldehyderesinand0.8%rateofureaandethylaminesolution ยูเรีย Thesedecreaseswereforcyclopentylaminesolutionaddition determinedas57%, 41% forpropylaminesolutionadditionและ 48% formethylaminesolutionaddition&

ผลลัพธ์ (ไทย) 2:

ใน thisstudy, mediumdensityfiberboardpanelswereproducedbyaddingdifferentratiosofsome
compoundstoureaformaldehyderesin amine, whichhad1: 1.17molratios.Theformaldehyde
เนื้อหาทางกายภาพ andmechanicalpropertiesofmediumdensityfiberboardpanelsweredetermined
. accordingtoENstandardmethods
ใน thisstudy, itwasdeterminedthattheformaldehydeemissionemittedfrommediumdensity
fiberboardpanelsdecreasedbyaddingurea, propylamine, methylamine, ethylamine, andcyclopenty-
Lamine solution.Itwasfoundthatthewaterabsorptionandthicknessswellingvaluesincreased
เล็กน้อยอย่างไรก็ตาม theinternalbondstrength, modulusofrupture, andmodulusofelasticityofmedium
densityfiberboardpanelsalsoincreasedsubstantially, butthesepropertiesofmediumdensity
fiberboardpanelsdecreasedbyaddinghigherratiosofureasolution.Itwasfoundthatthe
formaldehydeemissionofmediumdensityfiberboardpanelsdecreased16.5% byusinga16% rateof
ยูเรีย formaldehyderesinand0.8% rateofureaandethylaminesolution.Thesedecreaseswere
determinedas57% forcyclopentylaminesolutionaddition% forpropylaminesolutionaddition 41,
และ 48% formethylaminesolutionaddition.
และ

ผลลัพธ์ (ไทย) 3:

ในการศึกษา mediumdensityfiberboardpanelswereproducedbyaddingdifferentratiosofsomecompoundstoureaformaldehyderesin whichhad1: 1.17molratios.theformaldehyde เอมีน ,เนื้อหา andmechanicalpropertiesofmediumdensityfiberboardpanelsweredetermined ทางกายภาพaccordingtoenstandardmethods .ในการศึกษา itwasdeterminedthattheformaldehydeemissionemittedfrommediumdensityfiberboardpanelsdecreasedbyaddingurea propylamine เมธิลามีน , เอตทิลามีน andcyclopenty - , , ,itwasfoundthatthewaterabsorptionandthicknessswellingvaluesincreased Lamine โซลูชั่นเล็กน้อย อย่างไรก็ตาม theinternalbondstrength modulusofrupture andmodulusofelasticityofmedium , ,densityfiberboardpanelsalsoincreasedsubstantially butthesepropertiesofmediumdensity ,itwasfoundthatthe fiberboardpanelsdecreasedbyaddinghigherratiosofureasolution .formaldehydeemissionofmediumdensityfiberboardpanelsdecreased16.5 % byusinga16 % อัตราformaldehyderesinand0.8 % rateofureaandethylaminesolution.thesedecreaseswere ยูเรียdeterminedas57 % forcyclopentylaminesolutionaddition forpropylaminesolutionaddition 41 % ,และ 48 % formethylaminesolutionaddition .&