39results about How to "Low atomization value" patented technology

The invention relates to a TPE (thermoplastic elastomer) material applicable to automobile interior decorations and a preparation method thereof. The material comprises the following components in parts by weight: 100-200 parts of SEBS (styrene-ethylene-butadiene-styrene), 100-200 parts of white oil, 20-80 parts of polypropylene, 30-100 parts of filler and 0.2-0.4 part of stabilizer. The method comprises the following steps: slowly mixing the SEBS and white oil in a stirrer at 50-80 DEG C for 20-30 minutes, mixing with the other raw materials and assistants for 20-30 minutes, and adding into a double screw extruder; meanwhile, adding a liquid azeotrope former into first three regions of a vacuum zone by using a melt measuring pump; and carrying out vacuum exhaust until the liquid azeotrope former is thoroughly discharged. The TPE material has the advantages of low smell, high/low-temperature resistance, low atomization value, wear resistance and excellent stretching resistance, is especially suitable for automobile interior decoration materials, has the characteristics of wide application range, high practicality and simple production technique, is more environment-friendly and durable than the existing TPE material, and is worthy of widespread popularization.

The invention discloses a manufacturing technology for flame-retardant, light-resistant, low-fogging and degradable cowhide car seat cushion leather. According to the manufacturing technology, ammonium salt deliming is replaced by ammonium-salt-free deliming, tetrakis hydroxymethyl phosphonium sulphate and a flame-retardant starch-type leather surfactant are selected as a leather tanning agent to replace a traditional chrome tanning agent, the fogging value of the seat cushion leather is reduced through high-temperature washing, the flame-retardant property of the leather is improved through retanning, fat liquoring and coating step by step, the light resistance of a coating is improved through a light-resistant material, and the usage quantity of leather chemicals is decreased by selecting roll coating to replace spray coating.

The present invention relates to flame-retardant polyurethane foams which comprise, as flame retardant, halogen-free bisphosphonates free from hydroxy groups.

The invention discloses a preparation method of a vehicle interior decoration polypropylene composition with characteristics of low atomization value, low volatility and low odor. The vehicle interior decoration polypropylene composition comprises a polypropylene resin, a polyethylene resin, a toughening agent, a reinforcing agent, a heat stabilizer, a light stabilizer and a lubricant. The preparation method comprises high-speed mixing, extrusion granulation and homogenization circulation. According to the present invention, the low-VOC resin is selected and is reasonably compatible with other auxiliary agents, the two-stage water injection rinsing extraction devolatilization is used, the addition of the molecular sieve-based adsorbent is not required, and the prepared vehicle interior decoration material has advantages of low atomization value, low volatility, low odor and good molding appearance; the produced particle material is extracted into the three-component homogenization tank, and the surface of the particles is purged with hot air, so the residual volatile organic compounds in the particles can be completely devolatilized under the heating circulation action; and the preparation method has advantages of controllable process, stable quality, simple and feasible process, mature technology, wide raw material source and low production cost, and is suitable for large-scale industrial production.

The invention discloses a flame-retardant single-faced velvet composite fabric, which comprises a flame-retardant surface layer and flame-retardant single-faced velvet. The fire-retardant surface layer is flame-retardant PVC artificial leather, phosphorus-containing flame-retardant polyurethane synthetic leather, or flame-retardant fabric prepared from a phosphorus-containing flame-retardant polyester polymer material, wherein the LOI is not less than 27%. The flame-retardant single-faced velvet is prepared from a phosphorus-containing flame-retardant polyester polymer material. Gram weight ofthe flame-retardant single-faced velvet is 150-450 g/m<2>, velvet height is 1-10 mm, and the LOI is not less than 27%. The composite fabric of the invention has good flame-retarding effect, comfortable and soft hand feeling, good resilience, wide application range and good dimensional stability. The composite fabric has characteristics of dry cloth, environmental protection, low smoke and low toxicity, low VOC, low atomization value, no odor, soft hand feeling, excellent flame retardant performance, high peeling strength, good resilience, comfortable hand feeling and good heat preservation. The composite fabric is applicable to seats, ceilings, door panels, safety seats, sofas, soft chairs and deck chairs for high-speed railway, bullet trains, suburban railway, coaches and cars.

The invention relates to a production method of automotive interior leather with refreshing and comfortable fragrance, low emission and low atomization. The production method is characterized by comprising the following steps: liming, softening, tanning, retanning, fat liquoring, drying, bottom coating and top coating, wherein the step of liming is characterized by completing the processes of liming, saving hair and removing hair through combination of a biological ablation mode and combined action of a low quantity of liming aids and light alkali substance; the step of softening is characterized by adding 0.5% of a biological softening enzyme preparation OPORONON into a delimed leather rotary drum, reacting and rotating for 30-50 minutes; the pH value of the whole softening process is controlled to be 8-9; then the steps of washing with water and controlling water after the leather is softened to meet the requirements; the salt-added acid-leaching reaction is carried out to control the pH value to be 2.8-3.0; the temperature of bath liquid is lower than 27 DEG C. The production method of the automotive interior leather is capable of removing and preventing the influence of bad smell caused by rot of leather products because of bacterial actions, helping the leather to retain good hand feeling and elasticity, simultaneously enabling the leather body to be compact, sufficient intoughness and high in rebound resilience.

The invention discloses a synthesis method of a reactive polymer leather fatting agent. According to the method, a vinyl monomer with a polyoxyalkyl epoxy group structure, acrylic acid long-chain ester, acrylic acid and a cationic vinyl monomer are adopted and subjected to emulsion copolymerization to obtain the multi-element amphiphilic copolymer fatting agent. Epoxy groups in the molecular structure of the fatting agent have high reaction activity and can be covalently combined with skin collagen fibers; the polyoxyalkyl structure endows the copolymer with hydrophilicity and is beneficial toimproving the stability of an emulsion system; the long-chain alkyl structure plays a role in lubricating the leather fibers; and the cationic monomer can improve the bonding and fixing performance of the cationic monomer and the leather fiber. A solvent-free emulsion polymerization method is adopted for preparing the fatting agent, the requirement of the ecological fatting agent can be met, andthe fatting agent is particularly suitable for fatting non-chrome tanned leather. Because of the saturability of the molecular structure of the polymer and a reactive group contained in the molecularstructure, the defects that a traditional natural fatting agent is prone to oxidation and yellowing, poor in migration resistance and the like can be overcome.

The invention provides a low-atomization leather synthetic fatting agent as well as a preparation method and application thereof, and relates to the technical field of leather chemical engineering. The invention provides a low-atomization synthetic leather fatting agent. The low-atomization synthetic leather fatting agent is prepared from the following raw materials in parts by weight: 20-40 parts of N-oleoyl sarcosine; 50-100 parts of palm oil; 10-20 parts of maleic anhydride; 10-50 parts of mineral oil with a high boiling point; 10-50 parts of synthetic grease; 5-50 parts of a neutralizer; 10-30 parts of an emulsifier; 100-200 parts of water. Unsaturated grease and volatile components in the adopted raw material components are few, the high saturation degree of palm oil is utilized, volatile matter formation is further reduced through chemical modification, and high-boiling-point mineral oil is matched, so that the atomization value and VOC are reduced; when the low-atomization synthetic leather fatting agent provided by the invention is used for automobile base cushion leather, good low-atomization performance can be obtained.

The invention discloses a hot melt adhesive for automobile trunk mats and a preparation method of the hot melt adhesive. The hot melt adhesive is prepared from, by weight, 10-30 parts of propylene-rich polyolefin elastomer, 30-50 parts of ethylene and propylene copolymerized polyolefin elastomer, 25-50 parts of tackifying resin and 0.3-1 part of an antioxidant. The hot melt adhesive for the automobile trunk mats and the preparation method have advantages that the preparation method is simple, harmful substance discharge in a production process is avoided, solvent consumption is avoided, and the hot melt adhesive is environmentally friendly; in use, operating process simplicity and low equipment investment are realized, and the hot melt adhesive has advantages of low VOC, low odor, low atomization value, excellent adhesiveness, high resistance to high and low temperatures and aging resistance.

The invention discloses an environmental-friendly processing technology for sheepskin clothing leather. In order to overcome the flaws that clothing leather generates smell, is bad in washing resistance, is not environmentally friendly in chrome tanning and generates oil cream, according to the processing technology, naringin, N-naphthalene-1-yl-3-hydroxynaphthoic acid-2-formamide and glycine are adopted to improve the mechanical property of the clothing leather; sorbitol, 2-bromine-2-nitro-1,3-propyl alcohol, pyridoxine, D-panthenol, oleamide, polyacrylamide and 2,3-dihydrobutanedioic acid are adopted to improve the absorption of small molecule acrylic resin for the leather; sorbitol, mannite, THPC and an aluminate coupling agent are adopted to fix grease and small molecule compounds; and 3-chlorine-2-hydroxypropyl trimethyl ammonium chloride, polymine, alum, titanium dioxide and talcum powder are adopted to avoid the oil cream and absorb the small molecule compounds.

The invention discloses suede type styrene-butadiene segmented copolymer-based superfine fiber synthetic leather and a production method thereof, and relates to the technical field of superfine fibersynthetic leather. The preparation method comprises the following steps of infiltrating and compounding a styrene-butadiene segmented copolymer material and a sea-island fiber non-woven fabric base material in a curtain coating and extruding manner to obtain a composite material; treating the obtained composite material through a steam alkali deweighting technology to obtain a styrene-butadiene segmented copolymer/superfine fiber composite material; and carrying out an after-finishing process on the obtained styrene-butadiene segmented copolymer/superfine fiber composite material to obtain thesuede-type styrene-butadiene segmented copolymer-based superfine fiber synthetic leather. The production process is clean and environmentally friendly, the obtained product is soft and full in hand feeling, the atomization value is smaller than 4 mg, the smell is smaller than the third level, the product can be used as a vamp material and has good bonding strength with an SBS injection molding sole, and the product can be used for producing high-performance anti-skid sneakers and can also be used as an environment-friendly skin material of automobile seats.

Polypropylene composition comprising (A) 60 to 95 wt % of a heterophasic polypropylene (HECO) comprising 10 to 30 wt % of dispersed phase with the dispersed phase having a comonomer content of 30 to 45 wt % and the HECO having a melt flow rate MFR_PP in the range of 12 to 200 g/10 min and being prepared in the presence of a Ziegler Natta catalyst (ZN-C), (B) 0 to 15 wt % of one or more elastomers, (C) 5 to 20 wt % of at least one filler wherein the polypropylene composition fulfils inequation (1) fogging≤0.02 MFR_Comp+0.3. The composition allows for a well-balanced combination of a good impact/stiffness balance, a good scratch resistance, low VOC and FOG emissions and remarkable good fogging values.

The present invention discloses a process for preparing a flame-retardant, lightfast, low fogging and degradable car seat leather wherein ammonia salt deliming is replaced with an ammonia free one, tetrakis hydroxymethyl phosphonium sulfate and the flame-retardant starchy leather surfactant are used as the tanning agents to replace the conventional chrome tanning agent, hot water washing is used to reduce the fogging value of the seat leather, the flame-retardant performance is enhanced by combination of retanning, greasing and coating, the lightfast material is applied to enhance the lightfastness of the coating and the spray coating is replace with the roller coating to lower the consumption of the paints.