1、粘接強(qiáng)度
封邊完畢后,撕扯封邊帶,直觀感受拉力強(qiáng)度和觀察封邊帶粘板材木屑多少,或進(jìn)行拉力剝離測試。相同條件下(指封邊機(jī)、封邊條、操作方法和環(huán)境相同),選拉力強(qiáng)的產(chǎn)品。一般情況下,高溫膠強(qiáng)度要比中低溫膠強(qiáng)。粘結(jié)強(qiáng)度是影響封邊質(zhì)量的致關(guān)因素。
Bonding strength
After edge banding, tears edge zone and feels intuitively tensile strength and observed wood quantity, or test tensile peel. Under the same conditions (of a machine, edge banding, method of operation and environment the same), selected high tensile products. In general, high temperature adhesive stronger than the low temperature glue. Bonding strength is the key factor Influences the edge quality.
2、初粘強(qiáng)度和親和力
不同品牌的熱熔膠初粘強(qiáng)度和親和力均有一定的差別。初粘強(qiáng)度高的膠,有助于增強(qiáng)粘結(jié)力,加大對各種類型的封邊帶的適應(yīng)范圍,但是開放時(shí)間相對偏短;親和力好,對一些比較難封邊的材料比較不會出現(xiàn)質(zhì)量問題,根據(jù)國內(nèi)封邊材料的品質(zhì),PVC背膠涂布情況、三聚氰胺紙封邊透膠量情況、原木皮油脂含量、木皮背面裱紙(布)濕潤性,都會影響封邊貼合,封邊材料背面親潤性太低,會導(dǎo)致封邊強(qiáng)度降低或封邊脫落。選擇熱熔膠時(shí),選擇的熱熔膠的初粘強(qiáng)度和粘度值要適合自己的封邊材料。例如:某熱熔膠封PVC封邊不會脫落,封背面裱有無紡布的木皮會脫落,換另外型號熱熔膠封邊良好,說明某熱熔膠初粘強(qiáng)度和親和力較低,適用范圍不廣。
Initial adhesive strength and affinity
Different brands of hot melt adhesive bonding strength and affinity have some differences. Strong initial adhesive helps to strengthen the cohesive force, broaden the using ranges of various types of Edge, but the opening time is relatively short; for the materials difficult to edge, good affinity blue is comparably good for quality. according to The banding material quality, PVC coated gum, melamine paper edge sealing glue penetration amount of raw wood, oil content, wood Biaozhi ( cloth ) wet backRun, will affect the edge paste Mupi Edge material, original oil content, Mupi back paper ( cloth ) wettability, will affect the edge paste, sealing material Surface affinity of too low, cause the edge strength decreased or edge off. When selecting hot melt adhesive, make sure initial bond strength and viscosity values fit your Sealing material. For example: a hot melt adhesive closure of PVC edge will not fall off, a rear mounted with a non-woven veneer will fall off, the other types of hot melt adhesive edge is good, this explains the low bonding strength and affinity of this hot melt adhesive .
3、粘度值(粘稠程度)
粘度值能影響初粘強(qiáng)度和熱熔膠的流動性,也影響膠的涂布。一般高溫膠200℃粘度值設(shè)定在45000-120000mpa.s;封邊機(jī)速度快,選的膠粘度值要中等偏大。中溫膠180℃粘度值設(shè)定在20000-40000mpa.s;低溫膠150℃粘度值設(shè)定在15000-25000mpa.s;粘度值的大小不代表粘結(jié)強(qiáng)度。
Viscosity ( viscous degree )
Viscosity values influences the initial bonding strength and hot melt fluidity, also affect the adhesive coating. General high temperature glue viscosity at 200 ℃value setting in 45000-120000mpa.s; if Edge banding machine is speedy, glue viscosity value should be medium to large. Medium temperature plastic viscosity at 180 ℃values set in the 20000-40000mpa.s; low temperature glue viscosity at 150 ℃values set in the15000-25000mpa.s; viscosity value does not mean bond strength.
4、熱流動性
流動性影響膠的涂布均勻程度和膠對板材的滲透性、濕潤性。流動性不好,涂膠時(shí)會涂膠不均,斷斷續(xù)續(xù);流動性不好,膠不能滲透到板材,不能形成“膠釘”狀膠膜;所以選熱熔膠時(shí),優(yōu)先選相同溫度相同粘度值下流動性好的產(chǎn)品。
Heat flow
Liquidity effects adhesive coating uniformity and adhesive sheet permeability, wettability. Not good fluidity, glue is uneven, and mobility; Not good, glue cannot penetrate into the sheet, cannot form the Film adhesive like “Gel Nail " so when selecting hot melt adhesive, good mobility product is better under the same temperature the same viscosity value.
5、抗熱性
現(xiàn)在很多家具需要裝在集裝箱里長途運(yùn)輸或飄洋過海出口國外,集裝箱里溫度很高,熱熔膠需有一定的抗熱性,封邊條才不會脫落,抗熱性不能低于攝氏60度,應(yīng)選擇抗熱性高一點(diǎn)的產(chǎn)品。中低溫膠的抗熱性一般是55-65℃,高溫膠的抗熱性一般是68-75℃,高溫膠抗熱性>中溫膠>低溫膠。
Heat resistance
Now a lot of furniture are installed in containers and shipped to the foreign country through long-distance transport, the temperature in container is high, so to make sure sealing Edge will not come off, hot melt adhesive needs to have a certain resistance, a high heat-resistant product is the right choose, heat resistance should be no less than 60 degrees Celsius. Low temperature plastic thermal resistance is generally 55-65℃, high temperature adhesive Heat resistance is generally 68-75℃, the temperature is high, the product is better.
6、涂膠量(效益)
好熱熔膠一般涂膠量150-200g/ m2,如果填充料過多,涂膠量會增大,某些品質(zhì)一般熱熔膠有的涂膠量達(dá)到250-300g/ m2,雖然價(jià)格較低,但不見得會降低成本,而且膠線粗,影響美觀。優(yōu)先選涂膠量低的產(chǎn)品。
Glue spreading amount ( benefit )
The good Hot melt adhesive generally contents 150-200g/m2, if the filler is overmuch, glue spreading amount increases, some hot melt adhesive with general quality reached 250-300g/m2, Although the price is low, but cannot reduce the cost, and the glue line thick, Affect the appearance. coating low volume products are better to choosef.