42results about How to "Little impact on physical and mechanical properties" patented technology

The invention discloses a flame-retardant PPO/PA alloy and a method for preparing the same. The compositions by weight percentage of the flame-retardant PPO/PA alloy are: 30 to 50 percent of PPO, 10 to 60 percent of PA, 3 to 15 percent of toughener, 5 to 15 percent of composite flame retardant, 3 to 10 percent of compatilizer, and 0.5 to 2 percent of other addition agents. The method for preparing the composite flame-retardant PPO/PA alloy comprises the following steps of: firstly, mixing the materials according to the proportions; then, putting the mixed materials into a plastic double-screw extruder and controlling a temperature between 260 and 320 DEG C for granulation to acquire the composite flame-retardant PPO/PA alloy. The method acquires the flame-retardant PPO/PA alloy with excellent comprehensive property by adopting a composite flame-retardant system. The composite flame-retardant PPO/PA alloy has a simple preparation process.

The invention relates to a flame retardant soft foam polyether polyol and a synthesis method thereof. The technical scheme is to provide the flame retardant soft foam polyether polyol which is good in flame retardant property, safe and non-toxic, simple in preparation process and low in cost and the synthesis method of the flame retardant soft foam polyether polyol. The synthesis method disclosed by the invention comprises the following steps of enabling melamine-formaldehyde condensation compound to react with amine compounds, polymerizing the reaction product with an acid compound to obtain a polyether initiator, further polymerizing the polyether initiator with oxyalkylene with the action of a base metal catalyst so as to obtain the flame retardant polyether polyol. The flame retardant polyether polyol synthesized by the method has the advantages of light colour, low viscosity and good material flowability, and can be widely used for preparing the flame retardant polyether soft foam. The flame retardant soft polyether foam plastic products foamed and prepared by the flame retardant polyether polyol disclosed by the invention have the characteristics of good flame retardant effect, high oxygen index, good foam uniformity, good size stability and high mechanical strength.

The invention relates to a method for preparing durable flame retardant cotton fabrics, which comprises the following steps: firstly, preparation of a finishing liquid, namely amino-methylphosphonate DAMP, a silane coupling agent gamma-glycidyl oxyl propyl trimethyl silicane and running water are uniformly mixed, and the pH value of the mixture is adjusted to between 3 and 7 by a finishing liquid pH regulator to obtain the finishing liquid; secondly, flame retardant finishing of the cotton fabrics, namely the cotton fabrics are immersed into the finishing liquid for 20 minutes at a temperature of 40 DEG C, padded until the liquid rate is between 75 and 80 percent, dried for 3 minutes at a temperature of between 80 and 100 DEG C, and roasted for 3 minutes at a temperature of between 150 and 180 DEG C; and thirdly, testing of the flame retardant property and the durability of the cotton fabrics after finishing. The method for preparing the flame retardant cotton fabrics has the advantages that raw materials have wide sources; the prepared cotton fabrics have good durability and flame retardant property; and the method has small influence on physical and mechanical properties of the cotton fabrics.

The invention provides a flame-retardant polypropylene material and a preparation method, and aims to improve the flame-retardant system and improve the flame retardation of the flame-retardant polypropylene material on the premise of keeping and improving the mechanical property of PP. The invention adopts the technical scheme that the flame-retardant polypropylene material comprises the following components in part by mass: 60 to 70 parts of polypropylene, 0.3 to 0.5 part of antioxidant, 22 to 28 parts of halogen-free intumescent flame retardant, 2 to 6 parts of grafted polypropylene, 0.5 to 0.7 part of lubricant and 12 to 17 parts of filler. Experiments show that the mechanical property of the flame-retardant polypropylene material is improved and the flame retardation is excellent.

The invention discloses a flame retardant adsorption master batch and a preparation method thereof. The flame retardant adsorption master batch is prepared by mixing and absorbing 1-7 parts of a porous adsorbing material particle and 99-30 parts of a flame retardant additive, wherein the porous adsorbing material particle is a polyolefin open-cell foamed plastic or natural porous material with a partial open-cell structure or sponge or netty microstructure; the average particle size of the porous adsorbing material particle is 1-10 mm, the porosity is at least 30% and the average diameter of the micropore is 50-200 mu m. The porous adsorbing material particle is taken as a storage stack for absorbing a liquid or suspending flame retardant, wherein the maximum concentration is 99%; in the high polymer material machining process, the adding amount of the master batch is few, the operation is convenient and the physical and mechanical properties influence on the resin material is small; the traditional master batch preparation process can be replaced without an expensive device or heating treatment, so that the master batch preparation period and device utilization rate are greatly shortened.

The invention discloses a flame-retardant and wear-proof corrugated case. The flame-retardant and wear-proof corrugated case comprises a case body composed of a corrugated paperboard. The paperboard sequentially comprises surface paper, corrugated paper and inner paper from outside to inside, and the surface paper, the corrugated paper and the inner paper are boned through oxidized starch, a vapor phase inhibitor is added into the oxidized starch, the surfaces of the surface paper and the inner paper are coated with a flame-retardant and wear-proof coating, and the coating is prepared from, by weight, 30-40 parts of phenolic resin, 10-15 parts of nanometer Sb2O3-Al(OH)3, 10-20 parts of nanometer wear-proof powder, 1-3 parts of a reactive diluent, 0.5-2 parts of an antifoaming agent, 2-5 parts of a penetrating agent, 0.5-1 part of an antioxidant, 10-20 parts of an organic solvent and 10-20 parts of a curing agent. According to the flame-retardant and wear-proof corrugated case, as cashew-nut-shell-oil-or-tripolycyanamide-modified phenolic resin is applied to the surface of the paper case, the quite-high wear-proof performance and the quite-high mechanical performance are achieved; meanwhile, the wear-proof nanometer powder is added into the coating, the wear-proof capacity of the surface of the paper case is enhanced, and a nanometer aluminum hydroxide is used as a flame retardant to achieve the aim of reducing the using amount and improving the flame-retardant performance.

The present invention discloses a finishing method for raising heat-insulating and flame-proofing performance of organic fibre fabrics. Said method is characterized by forming a continuous protective film made of sheet hydroxide on the surface of organic fibre or fabrics so as to raise flame-proofing and heat-insulating performance of organic fibre fabrics.

The invention discloses a compound type uvioresistant antibacterial agent and a preparation method thereof. The preparation method for the compound type uvioresistant antibacterial agent comprises the following steps of: firstly, coarsening talc powder by adopting fluohydric acid; secondly, sensitizing the talc powder after coarsening; and finally, performing silver deposition reaction on the talc powder after sensitizing. Metallic state silver of which the weight is 5 to 10 percent of that of the talc powder and the thickness is 50 to 100 nanometers is deposited and coated on the surface of the talc powder. By using the ultraviolet shielding, absorbing and bacteriostatic functions of nano-state metallic silver, the preparation method prepares the compound type uvioresistant antibacterialagent which simultaneous has uvioresistant and antibacterial functions by depositing the nano silver on the surface of the talc powder. The compound type uvioresistant antibacterial agent has the advantages of simplicity, practicability, high uvioresistant antibacterial efficiency, wide application range, large-scale production and the like. The compound type uvioresistant antibacterial agent provided by the invention can be widely applied to the industries of textiles, plastics, coatings and the like, and has good economical and social benefits.

The invention relates to water-expandable flexible flame-retardant foam plastic. The water-expandable flexible flame-retardant foam plastic is prepared from the following raw materials in parts by weight: 40-60 parts of a polyester polyol and/or a polyether polyol, 5-10 parts of s graft copolymer of polyvinyl alcohol/an isocyanate group silane coupling agent, 50-90 parts of a polyisocyanate, 1-5 parts of an opening agent, 0.2-3 parts of a foam stabilizer, 5-20 parts of a compound foaming agent, 10-30 parts of a modified flame retardant and 0.2-1 part of a catalyst. The invention simultaneouslyfurther provides a preparation method of the water-expandable flexible flame-retardant foam plastic. According to the prepared water-expandable flexible flame-retardant foam plastic, the graft copolymer of the polyvinyl alcohol/the silane coupling agent is introduced on a polyurethane foam skeleton, unexpectedly it is found that the water absorption capacity and the water retaining capacity of obtained polyurethane foam are enhanced, thus the prepared foam plastic has better water absorption expansion rate and rebound resilience, and the application field of polyester foam is widened; and theflame retardant reacts to a skeleton molecule, intrinsic flame-retardant foam plastic is formed, migration and precipitation of the flame retardant are avoided, so that the flame retardant effect lasts longer, and the effect on the physical and mechanical properties of a material is less.

The invention discloses a novel flame-retardant thermoplastic polyurethane plastic (flame-retardant TPU), and components, preparation and application thereof. Specifically, the flame-retardant TPU disclosed by the invention comprises polyether type TPU and polyester type TPU, the TPU flame retardant disclosed by the invention comprises an ionic liquid component, and the ionic liquid can be a single ionic liquid component, can be shared by several ionic liquids, and can also be a mixture of the ionic liquid and a traditional flame retardant. The flame-retardant TPU plastic plate disclosed by the invention can be applied to the fields of automobiles, buildings, national defense, aviation and the like.

The invention discloses an antimony-less environment-friendly novel flame-retardant polyvinyl chloride cable material and a preparation method thereof. The antimony-less environment-friendly novel flame-retardant polyvinyl chloride cable material is prepared from the following materials in parts by weight: 100 to 150 parts of PVC (polyvinyl chloride) resin, 40 to 50 parts of polyester plasticizer, 4 to 8 parts of compound calcium-zinc stabilizer, 0.5 to 1 part of chemical lubricant, 25 to 40 parts of filler and 3 to 5 parts of components of a formula A. The formula A is prepared from the following materials in parts by weight: 0.6 to 1 part of zinc stannate, 1 to 2 parts of aluminium hydroxide, 0.8 to 1.2 parts of organic phosphorus flame retardant, 0.8 to 1.5 parts of nitrogen series flame retardant, 1 to 1.5 parts of ammonium polyphosphate, 1 to 2 parts of magnesium hydroxide, 0.1 to 0.3 parts of pentaerythritol and 0.1 to 0.3 parts of chemical lubricant. Besides flame-retardant property, the cable material disclosed by the invention also has excellent physical and chemical properties.

The invention relates to a dyeing method for improving deep dyeing performance of polyamide fiber, and belongs to the technical field of textile printing and dyeing. The dyeing method comprises the following steps: adding disperse dye into a mixed solution of ethanol and water to obtain a dyeing solution, and dyeing the polyamide fiber in an ultrasonic environment, wherein by virtue of strong penetration of ethanol into the polyamide fiber, a synergistic effect is produced under the auxiliary action of ultrasonic, and a large number of dye molecules are carried into the free volume of the fiber so as to deeply and thoroughly dye the polyamide fiber. By the dyeing method, the dyeing temperature is low, the dyeing time is short, strength damage of the polyamide fiber in the dyeing process is alleviated, and the problem that the dyeing depth is not high when the disperse dye dyes the polyamide fiber is effectively solved; and the dyeing method is simple in process and strong in operability and is an efficient polyamide fiber dyeing method.

The invention discloses a high-toughness flame-retardant polypropylene material and a preparation method thereof. The preparation method comprises the following steps of: preparing modified isotacticpolypropylene with good impact toughness, flame retardancy and heat resistance by using isotactic polyethylene fibers, hexahydroxymethylaminotristritrientriene, and temperature-resistant toughening filler, obtaining a compact fiber net with good adhesive force, compatibility, ultraviolet ray resistance and flame retardancy through the melt spinning of the modified isotactic polypropylene, a sisalfiber composite light stabilizer loaded with FeTiO3/titanium dioxide, and an adhesion promoter, carrying out infiltration and hot pressing on the compact fiber net in an ester-soluble chlorinated polypropylene resin solution, and discharging to obtain the polypropylene material. On the basis of maintaining the good toughness and flame retardance, the dust removal and sterilization efficiency of the obtained polypropylene material is greatly improved; and an automobile lining prepared by the polypropylene material is not easy to crack and wrinkle under the condition of long-term illumination and rain.

The invention discloses tin antimony oxide dispersion liquid for improving the fiber conduction performance, a preparation method of the tin antimony oxide dispersion liquid and a preparation method of conductive regeneration cellulose fiber. The dispersion liquid is prepared by mixing ammonium polycarboxylate solution, soft water, ATO powder and sodium hexametaphosphate according to the weight ratio of (4 to 8):(2 to 6):(0.5 to 3):(0.1 to 0.5); the pH value of the dispersion liquid is 8 to 12. The dispersion liquid is added into prepared spinning viscose according to the addition quantity that the ATO powder in the dispersion liquid accounts for 3 to 10 weight percent of the methylcellulose in the spinning viscose; after the uniform mixing, the blending viscose raw liquid is obtained. Theblending viscose raw liquid is subjected to coagulating bath spinning shaping; then, refining and drying are performed to obtain the conduction regenerated cellulose fiber. The tin antimony oxide dispersion liquid is used for modified preparation of the conductive fiber; the addition quantity of the conductive powder is low; the conductive body and the cellulose are tightly combined; falling cannot easily occur in the subsequent use and processing process.

The invention discloses a wet rubbing fastness promoting agent and a preparation method thereof. The promoting agent has a structural formula disclosed in the specification, wherein m is 100-5,000, n is 1-6, and R' is -CH2-CH2-. Compared with the prior art, the promoting agent structure is rich in active groups of phosphamide, and the like, shows weak cation properties and can combine and react with water soluble groups, so that hydrophilic groups of dye are closed so as to form infusible lakes on a fabric; meanwhile, the promoting agent also can react and combine with active groups of fabric macromolecules so as to improve the rubbing fastness; the promoting agent consists of meshed macromolecules, and the film forming property is strong; and after drying treatment, a flexible and tough film can be formed on the surface of the fabric.

The invention discloses novel flame-retardant polycarbonate alloy plastic and preparation and application thereof. In the novel flame-retardant polycarbonate alloy plastic, ionic liquid is used as a flame retardant and a compatibilizer. The ionic liquid can be a single ionic liquid component, or can be multiple shared ionic liquid, or can be ionic liquid mixed with a conventional flame retardant or a conventional compatibilizer. The polycarbonate alloy plastic is prepared from PC/ABS, PC/PS, PC/PBT, PC/PET, PC/ASA and the like. A flame-retardant polycarbonate alloy plastic plate disclosed canbe used in the fields of automobiles, electronics, precision instruments, construction, office equipment, household appliances, packaging materials and the like.