33results about How to "Transparency has no effect" patented technology

The invention discloses a fusion preparation method of a polyvinyl alcohol film, which comprises the steps of mixing 100 parts by weight of polyvinyl alcohol, 10-45 parts by weight of small molecular plasticizer, 3-15 parts by weight of polymeric plasticizer, 1-5 parts by weight of processing agent, and 0.01-5 parts by weight of inorganic nanofiller, putting the components into a double-screw extruder, and fusing and plasticizing at the temperature of 140-250 DEG C and the screw rotate speed of 50-200rpm to directly extrude to form films or extrude to form films via fusing and plasticizing after pelleting. By choosing reasonable small molecular and polymeric compound plasticizers and inorganic nanofillers, the invention effectively reduces the fusing processing temperature of PVA, and solves the fusing processing problem of polyvinyl alcohol which has high molecular weight and high alcoholysis degree and is difficult to dissolve in water at normal temperature, and the obtained film has high transparency and good mechanical properties, is environmental-friendly, is non-toxic, and can be used for packaging a variety of products.

The invention discloses a preparation method of a transparent toughened polystyrene functional color masterbatch and belongs to the technical field of polymer material modification. The preparation method is characterized in that GPPS as a base resin raw material, MBS and an oily flexibilizer as main functional assistants, a transparent pigment, and various processing auxiliary agents are mixed uniformly; and the mixture is mixed by a double-screw extruder and then is cut into the transparent toughened polystyrene functional color masterbatches by a water loop heating granulator. Through mixing use of the transparent toughened polystyrene functional color masterbatches and the GPPS raw material, material toughness is improved; undesirable effects produced by stress cracking on a workpiece is improved obviously; and transparent color effects of the GPPS raw material are obtained. The transparent toughened polystyrene functional color masterbatch does not influence material transparency, has wide application prospects in fields of household electrical appliance, office supplies, electronic and electrical products and package, and is especially suitable for injection molding of transparent refrigerator drawers.

The invention relates to a flat polyester fiber FDY (Fully Drawn Yarn) and a preparation method thereof. The spinning melt comprises a saturated fatty acid metal salt and polyester, wherein a mass ratio of the saturated fatty acid metal salt to polyester is (0.0005-0.002):1; the filtered pressure during spinning is 84-126kg / cm<2>; a die-swell ratio of the spinning melt is 1.22-1.34; and the saturated fatty acid metal salt refers to a fatty acid metal salt with the carbon atom number of 12-22, the melting point of 100-180 DEG C and the dynamic viscosity of less than or equal to 1Pa.s. The saturated fatty acid metal salt is added into the spinning melt, and the filtered pressure and extrudate swelling during spinning can be effectively reduced, so that the product has an excellent shape preserving effect; meanwhile, the saturated fatty acid metal salt can serve as a nucleating agent, so that the fiber curing speed is increased, and the fiber shape preserving effect is improved. In addition, the fiber structure regularity is not greatly damaged by the saturated fatty acid metal salt, and excellent performances of the polyester fibers are maintained.

The invention relates to the technical field of PVC (polyvinyl chloride) modified materials, in particular to a transparent and environment-friendly PVC modified material and a preparation method thereof. The modified material PVC resin comprises the following raw materials by weight: 80-120 parts of PVC resin, 60-100 parts of a plasticizer, 1-3 parts of a heat stabilizer, and 0.5-1.5 parts of a lubricant. The plasticizer is a mixture of dioctyl terephthalate and diisononyl cyclohexane-1, 2-dicarboxylate in a weight ratio of 2-4:1. The heat stabilizer is a mixture composed of (RCOO)2Ba and (RCOO)2Zn in a mole ratio of 1.4-2.2:1, wherein R is alkyl of C8-C24 or alkenyl of C6-C24. The material provided by the invention has high transparency, high light transmittance up to 93-95%, and is environment-friendly. The preparation method involved in the invention has the characteristics of simple process, convenient operation control, stable quality and high production efficiency, and can be used for large scale industrialized production.

The invention relates to a polyester spinning method capable of reducing extrusion swelling ratio. A spinning melt comprises a saturated fatty acid metal salt and modified polyester according to a mass ratio of (0.0005 to 0.002) to 1; the extrusion swelling ratio of the spinning melt is 1.20 to 1.32; the saturated fatty acid metal salt is a fatty acid metal salt with carbon atom number of 12 to 22, melting point of 100 to 180 DEG C, and dynamic viscosity less than or equal to 1Pa.s. The polyester spinning method has the advantages that by adding the saturated fatty acid metal salt into the spinning melt, which is equivalent to adding a lubricant, the post-filtering pressure during spinning is reduced, the exit swelling is effectively reduced, and a product has good shape preserving effect; the saturated fatty acid metal salt can be used as a nucleating agent, so that the curing speed of fibers is accelerated, and the shape preserving effect of the fibers is further improved; the saturated fatty acid metal salt has no great damage to the regularity of the polyester fiber structure, and the self excellence property of the polyester fiber is maintained.

The invention relates to a PVC (polyvinyl chloride) antistatic glove and belongs to the technical field of plastic gloves. The PVC antistatic glove is made from the following materials, by weight: 100 parts of PVC powder, 25-50 parts of DINCH, 20-40 parts of ATBC (acetyl tributyl citrate), 20-30 parts of epoxidized fatty acid methyl ester, 3-10 parts of an antistatic agent, 0.5-1.8 parts of liquid calcium-zinc stabilizer, 25-30 parts of a viscosity reducer, and 0.5-0.7 part of waterborne PU (polyurethane) rubber. The PVC antistatic glove is good in antistatic effect, durable, comfortable to wear and low in cost, the polymer antistatic agent that is used has excellent antistatic effect, is friendly to transparency of the glove and initial color performance of PVC and can also avoid the problems such as affected normal wearing due to glove adhesion caused by the adding of other antistatic agents to the formula, and a production process of the glove is simple and easy to perform.

The present invention relates to the technical field of plastic shower curtains, in particular to a diamond pattern PVC shower curtain and a preparation method thereof. The diamond pattern PVC shower curtain comprises the following raw materials in parts by weight: 80-120 parts of PVC resin, 40-60 parts of plasticizer , 5-10 parts of heat stabilizer, 0.05-0.5 part of flame retardant, 0.1-0.2 part of anti-ultraviolet agent, 0.01-0.02 part of phthalocyanine blue; the preparation method includes raw material preparation, high-speed stirring, primary plasticization, secondary plasticization liquefaction, hierarchical filtration, calendering and cooling winding. The shower curtain of the present invention is flame-retardant, insulating, alkali-resistant, acid-resistant, waterproof, anti-corrosion, tensile-resistant, anti-aging, anti-static, has clear lines and patterns, and has good 3D three-dimensional effects. The preparation method of the invention has the advantages of simple process, convenient operation and control, stable quality, high production efficiency and large-scale industrial production.

The invention belongs to the field of polyester spinning, and relates to a square hollow polyester fiber FDY (Fully Drawn Yarn) and a preparation method thereof. A spinning melt contains a saturated fatty acid metal salt and modified polyester; the mass ratio of the saturated fatty acid metal salt to the modified polyester is (0.0005-0.002):1; the saturated fatty acid metal salt is a fatty acid metal salt of which the carbon atom number is 12-22, the melting point is 100-180 DEG C and the power viscosity is less than or equal to 1Pa*s; the molecular chain of the modified polyester comprises a terephthalic acid chain segment, a glycol chain segment and a rigid structure chain segment; the mole ratio of the rigid structure chain segment to the terephthalic acid chain segment is (0.02-0.05):1; the die swell ratio of the spinning melt is 1.21-1.32; the after-filtration pressure of the spinning melt in spinning is 82-123kg / cm<2>. The square hollow polyester fiber FDY provided by the invention is relatively high in hollowness degree and relatively good in conformal effect.