The hottest non stick sample strip epoxy mold was

The non stick sample strip epoxy mold was successfully developed in natural selection

Henan natural selection Industry Co., Ltd. recently pushed that the current ocean freight from Brazil to China is $5.549/ton, and the multi-purpose sample mold of epoxy resin is free to use. According to the experts of China epoxy resin industry association, all people engaged in the research of reactive polymer materials have a puzzle. After the materials are made with a good industrial ecology, how to define their physicochemical properties has become a small but thorny problem. The molds made of metal, wood and other materials are easy to make the finished products stick to the molds, and excessive use of demoulding materials will affect the performance of the finished products, In response to everyone's confusion, natural selection industry organized technicians to select mold materials suitable for most reactive resins (especially epoxy resins) after more than one year of hard research, and realized batch supply at the end of 2006

the epoxy resin mold developed by natural selection industry has the national standard GB "preparation and use of plastic multi-purpose samples", although B787 was the main driving force of growth in 2013, and ISO "plastics - Preparation and use of multi-purpose samples". Experts from China Epoxy Resin Industry Association said that the referenced standards of the product include GB general rules for performance test methods of resin castings, GB tensile performance test methods of resin castings, GB compression performance test methods of resin castings, GB bending performance test methods of resin castings, GB impact performance test methods of resin castings (simply supported beam method), GB impact performance test methods of plastic cantilever beams, GB heat resistance (Martin) test methods of plastics GB thermoplastics Vicat softening temperature (VST) test method, GB plastics shore hardness test method, GB plastics flammability test method (horizontal combustion)

natural selection industry is the first in the industry to launch this service. According to the characteristics of epoxy resin, they use modified composite materials to make molds, and the cast test strips can meet the requirements of the above standards. The mold consists of 2 splints and 1 model plate, which are fixed with screws. Experts from China Epoxy Resin Industry Association said that before the installation of the mold, the casting surface of the mold should be checked for deformation, bulge, dust and other impurities; Then dip a little liquid paraffin with a sponge or lint free cloth, and apply it evenly on the casting surface of the two plywood and all surfaces of the model plate. The wax oil should not be applied too thick or very thin; Then stack the plywood 1, model plate and plywood 2 in order, fix the upper part of the casting mouth with three bolts upward, that is, the casting mouth, and fix each fixed position with bolts in turn. The mold has two casting ports, each of which can produce 3 samples. Each group of samples can produce 6 sample strips at most, or 3 sample strips. The minimum amount of resin used for one casting port is 60g. The minimum amount of resin used is reduced by adding curing agent at the ratio of 100:20; When mixing the casting material, it is best to heat the resin to about 30 ~ 40 degrees to improve the fluidity. The amount of curing agent should not be too much to avoid the impact of explosion and polymerization on the casting. After adding the curing agent and mixing evenly, the temperature should be maintained and put it into Eastman's recommended Vectran vacuum box. After vacuuming and discharging the bubbles, cast slowly from the casting mouth to ensure smooth exhaust

experts from China epoxy resin industry association emphasized that during casting, the mold should be inclined to the direction of the casting mouth at an angle of 30 degrees for easy exhaust. If there are bubbles at the casting mouth, hold the mold and tilt it back and forth to make the casting full; At the same time, it is best to pad a newspaper on the lower side, because sometimes the lower part of the abrasive tool may exude resin, but it does not affect the accuracy of the sample strip; After casting, keep the mold upright for 10 ~ 20 hours, and demould after confirming that it is completely cured. When demoulding, loosen the bolts with a wrench and remove them. Use a flat tool or hand to break the casting mouth to separate them. Remove the clamping plates on both sides to remove the "flash", gently bend the model plate to separate the sample strip from the model plate, and then push the sample strip from the bottom with your fingers to completely separate the sample strip from the model plate; In addition, after demoulding, trim the "flash" with a knife to complete the production of the sample strip wool embryo. Please refer to gb/t2567-1995 general rules for performance test methods of resin castings for the processing of sample strips