Japan has increased the development of environmentally-friendly and high-performance adhesives, and recently three new products have achieved good results in application.
Sumitomo Chemical has developed an i-line photoresist and a heat-resistant photoresist applied to an excimer laser with a wavelength of 36.5 nm. The pre-glue product is a thick-film photoresist, which has a high performance in the production of enlarged liquid crystal displays (LCDs); post-adhesive products are mainly used in processing plasma display (PDP) assemblies. This new adhesive material can improve the quality of LCDs and PDPs. The sensitivity of the former product is 19 millijoules (cm)-2, and the latter can withstand high temperatures of 1000°C.
The formaldehyde-free adhesive developed by DJK uses low polyacrylate, polyvinyl acetate emulsion and hydrogen peroxide curing agent CaC03 filter as raw materials. Its adhesive strength, fire resistance and other qualities are similar to that of melamine adhesive agent. , And lower production costs, can replace the plywood used in the manufacture of formaldehyde-containing adhesives.
Mitsui Chemicals has succeeded in researching acrylic-acrylic starch adhesives. The liquid products are made of acrylic polymers or acrylonitrile-based copolymers that are obtained by hydrolysis of acrylic adhesives, starch, red pigments, yellow pigments, barium sulfate and other fillers, and are heated and mixed. production. The content of the solid content of the acrylic adhesive in the composition accounts for 10% to 50% of the weight, and the acrylic liquid adhesive liquid obtained can be used directly at a short distance or in a separated manner, and the distance can be adjusted by using glue particles and water.
Sumitomo Chemical has developed an i-line photoresist and a heat-resistant photoresist applied to an excimer laser with a wavelength of 36.5 nm. The pre-glue product is a thick-film photoresist, which has a high performance in the production of enlarged liquid crystal displays (LCDs); post-adhesive products are mainly used in processing plasma display (PDP) assemblies. This new adhesive material can improve the quality of LCDs and PDPs. The sensitivity of the former product is 19 millijoules (cm)-2, and the latter can withstand high temperatures of 1000°C.
The formaldehyde-free adhesive developed by DJK uses low polyacrylate, polyvinyl acetate emulsion and hydrogen peroxide curing agent CaC03 filter as raw materials. Its adhesive strength, fire resistance and other qualities are similar to that of melamine adhesive agent. , And lower production costs, can replace the plywood used in the manufacture of formaldehyde-containing adhesives.
Mitsui Chemicals has succeeded in researching acrylic-acrylic starch adhesives. The liquid products are made of acrylic polymers or acrylonitrile-based copolymers that are obtained by hydrolysis of acrylic adhesives, starch, red pigments, yellow pigments, barium sulfate and other fillers, and are heated and mixed. production. The content of the solid content of the acrylic adhesive in the composition accounts for 10% to 50% of the weight, and the acrylic liquid adhesive liquid obtained can be used directly at a short distance or in a separated manner, and the distance can be adjusted by using glue particles and water.
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