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1、人造板工藝學(xué)1.緒論?本章主要內(nèi)容：1.1人造板定義2學(xué)時(shí)1.2人造板分類1.3人造板發(fā)展歷史、現(xiàn)狀及趨勢(shì)1.4人造板性能及應(yīng)用1.5人造板生產(chǎn)方法1.6人造板標(biāo)準(zhǔn)?本章重點(diǎn)內(nèi)容：ll??????人造板基本概念及常見(jiàn)產(chǎn)品種類ll??????人造板基本性能參數(shù)意義ll??????典型人造板產(chǎn)品生產(chǎn)工藝流程1.1人造板定義人造板是指以木材或其他植物纖維材料為原料，經(jīng)機(jī)械加工分離成各種形狀的組元后，再經(jīng)組合壓制成的板材。人造板=單元（A）×膠粘劑（B1）×添加劑（B2）×產(chǎn)品形狀（C）單元（A）：?jiǎn)伟?、竹片、板材、木條、大片刨花、刨花、纖維等。Lumber,BlockVeneer,StripC
2、hip,Flake(Strand),ParticleFiber,WoodwoolWoodFlour,WoodDustNano-StucturalFiber??膠粘劑（B1）：合成樹(shù)脂膠——脲醛樹(shù)脂、酚醇樹(shù)脂、三聚氰膠樹(shù)脂、異氨酸脂樹(shù)脂等。無(wú)機(jī)膠粘劑——水泥、石膏、粉煤灰、礦渣等。添加劑（B2）：阻燃劑、防蟲(chóng)劑、防水劑、防腐劑等；產(chǎn)品形狀（C）：平面狀、異狀（曲面、彎曲）、表面模壓等。例如：?jiǎn)伟濉岭迦?shù)脂×平面狀=脲醛樹(shù)脂膠合板單板、木條×脲醛樹(shù)脂膠×平面狀=細(xì)木工板刨花×豚醛樹(shù)脂膠／防水劑=普通刨花板?1.2人造板分類1.2.1按組成木質(zhì)（非木質(zhì)）單元分類(1)．以單板、板、片為主的產(chǎn)品
3、(Veneer-basedPanel)ll???????Plywoodll???????結(jié)構(gòu)膠合板StructuralPlywoodll???????功能膠合板FunctionalPlywoodll???????細(xì)木工板Blockboard(2)．以刨花為主的產(chǎn)品(Particle-basedPanel)ll???????RawMaterialWood,Bamboo,AgriculturalResiduesll???????Adhesive有機(jī)合成樹(shù)脂SyntheticAdhesive——UF,PF無(wú)機(jī)膠粘劑InorganicAdhesive——Cement,Gypsumll??????
4、?Structure?????????單層結(jié)構(gòu)刨花板：Single-layerparticleboard——thedensityandthesizeofparticleofeachlayerareuniforminthicknessdirection.????????????多層結(jié)構(gòu)刨花板：Multi-layerparticleboard——thedensityandthesizeofparticleofeachlayerareuneveninthicknessdirection.Usuallysmallerparticlesareformedonthesurfacewhilelarge
5、rparticlesinthecore.Moreover,theinterfaceisobvious.Thepurposeistodevelopadequatestrengthplusgoodsurfacesmoothness.?????????????漸變結(jié)構(gòu)刨花板Graduatedparticleboard——thedensityandthesizeofparticleofeachlayerchangegraduallyfromthesurfacetothecore.Theinterfacecan’tbedistinguished.????????????定向結(jié)構(gòu)板OrientedS
6、trandboard(OSB)——OSBismatofthreeorfivealternatelayersofstrandsorientedat90degreesutilizingthesameprincipleasplywood.??????ll????????DensityLow-densityparticleboard—ρ<0.5g/cm3Medium-densityparticleboard—0.5<ρ<0.65g/cm3High-densityparticleboard—0.65<ρ<0.85g/cm3ll???????Processing?????????平壓法：Platen
7、-pressedparticleboard—thedirectionofpressureisverticaltothepanelsurface?????????擠壓法：Extrudedparticleboard--thedirectionofpressureishorizontaltothepanelsurface,bywhichthemoldedproductsareproduced.(3)．以纖維為主的產(chǎn)品(Fiber-base
