摘要:
A treatment method of waste fabric containing polyester fiber and elastic fiber is provided. The method includes the steps of using at least one polar solvent to perform at least a two-stage separation treatment on the waste fabric and recycling the waste fabric after the treatment. The at least one polar solvent is selected from the group consisting of dimethylformamide (DMF), dimethylacetamide (DMAC), N-methylpyrrolidone (NMP), gamma-butyrolactone (GBL), and dimethylsulfoxide (DMSO).
摘要:
A polypropylene composition provided with lightweight, highly tough and highly rigid as well as having a specific weight of 1.0-1.05 is made of a polypropylene resin, inorganic powder, a toughener, a coupling agent, a compatibilizer and an anti-oxidant; a method of manufacturing the composition involves grafting the inorganic powder onto the polypropylene resin and the coupling agent to form a masterbatch, and mixing the masterbatch with the other additives to enhance bonding ability of the inorganic powder inside the polypropylene composition to endow the composite with good toughness, rigidity and mobility, and reducing undesirable dust.
摘要:
A heat-insulating transparent PVC sheet is formed from a PVC substrate having a thickness of 0.02-2.0 mm and contains heat-insulation pastes evenly distributed over the PVC substrate, since the heat-insulation paste contains an essential component of wolfram cesium powder (WCs) with a chemical formula of CsXNYWO3-ZClC and having a particle size of 0.005-2 μm, the heat-insulating transparent PVC sheet has an excellent weatherability, and particularly before and after tested in 300-hour service life in line with ASTM G-154 specification, has a physical property of weatherability decay rate (%) small than 4%.
摘要:
A method for preparing N,N′-bis(2-cyanoethyl-1,2-ethylenediamine involves using glycol ether as a catalyst for synthesis reaction in which ethylenediamine and acrylonitrile at a molar ratio of 1:1.9-2.1 are reactant that react at 20-70°C to prepare N,N′-bis(2-cyanoethyl)-1,2-ethylenediamine; the method improves the yield to 98.15-98.98%; and the used glycol ether may be filtered and recycled, thereby saving costs and reducing environmental pollution.
摘要:
A fluorocarbon resin composition is applicable to produce high-frequency circuit boards including a polytetrafluoroethylene resin; a fluorine-containing copolymer such as poly fluoroalkoxy and fluorinated ethylene propylene; low molecular-weight PTFE micro-powders and inorganic powders; in particular the temperature of pressing copper foil substrates is lowered from 350° C. to 250° C. via a lowering temperature rate of 1 to 4° C./min to improve the crystallinity of the fluorocarbon resin composition as well as improve the copper foil substrate with a high thermal conductivity and a wide range of dielectric constant.
摘要:
A waterborne heat-insulation coating uses a silicon dioxide dispersion with silicon dioxide evenly dispersed in resin through a sol-gel method as a heat-insulation agent; since the silicon dioxide dispersion has great fineness and large specific surface area of between 30.1 and 100 m2/g, the waterborne heat-insulation coating when applied to building surfaces forms a coating layer that features a packed structure, a smooth surface, and a high surface reflectivity of 85% or more; resulted in that the coating layer can effectively block infrared rays and provide excellent thermal shielding effects, stain resistance, and durability.
摘要:
A process for producing a modified polyphenylene ether resin having a purity of more than 99.4%, comprising steps of graft modification, water rinse, and extraction as well as phase splitting, is disclosed that step of separating out powder during purification is no needed, and the solvent for use in performing dissolving of or/and extraction of polyphenylene ether resin can be recycled for future use, so that the manufacturing process is simple and uses less solvent as compared to the prior art, and further helps to conserve resources and is environmentally friendly.
摘要:
A transparent ultraviolet curable adhesive is a solventless composition, based on a total weight of the composition, being composed of 35-65 wt % of a polyurethane (meth)acrylate resin, 30-60 wt % of a (meth)acrylate monomer, 0.1-5 wt % of an acrylate group-containing bisphenol fluorene derivative, 0.3-8 wt % of a photopolymerization initiator and 0.002-0.01 wt % of a vinyl silane coupling agent; and, the adhesive if cured has a refractive index of 1.52-1.56 very close to 1.52 for a glass thereof and has a visible light transmittance of 93-99 VLT (%) so suitable to be adhered to displays, transparent conductive film and touch panels.
摘要:
A polishing pad for surface planarization is made by impregnating a polyester-based fibrous fabric with thermosetting resins to form a porous impregnated material, and heating the porous impregnated material to effect changes in shape of the pores such that an integrally formed polishing pad with hard/soft layers of different hardnesses is obtained; the heated side of the polishing pad has high hardness and high cutting/grinding ability, whereas the unheated side maintains the original tiny pores and low hardness; and the polishing pad can produce a buffering effect when subjected to an external force and in turn apply an evenly distributed force to an article being polished.
摘要:
A release film is provided for supporting an ultrathin ceramic green sheet having a thickness of 0.5 to 1.0 μm, and the release film due to containing modified organic particles and an antistatic agent has a slippery releasing surface with a low friction coefficient and hence excellent coatability and releasing properties; resulted in that when the release film is rolled up, the rolled surfaces do not adhere to each other, and when the ultrathin ceramic green sheet is peeled off from the release film, the ultrathin ceramic green sheet due to a relatively small electrostatic force being generated is without breaking; so that the release film contributes to increasing the yield of ultrathin ceramic green sheet.