34results about How to "TVOC reduction" patented technology

The invention provides a raw bamboo fiber and polypropylene staple fiber composite molding interior panel and a preparation process thereof. The interior panel has a surface layer of a decorative fabric, a second layer of a hot melt adhesive film, a third layer of a first non-woven fabric, a fourth layer of a raw bamboo fiber and polypropylene staple fiber mixed needled felt and a fifth layer of a second non-woven fabric, wherein the raw bamboo fiber and polypropylene staple fiber mixed needled felt comprises the following components in percentage by weight: 53 to 56 percent of raw bamboo fiber and 44 to 47 percent of polypropylene staple fiber. The composite molding interior panel has excellent comprehensive performance and is high in environment friendliness.

The invention relates to an odor-free and low-TVOC polyurethane sealant for automotive trims, and a preparation method and an application thereof. The polyurethane sealant is prepared from the following components in mass percents: 20-40% of polyurethane prepolymer, 15-40% of environmentally friendly plasticizer, 5-25% of carbon black, 25-60% of white reinforcing filler, 0.2-2% of curing accelerator, 0.2-2% of dehydration stabilizer, 0.2-2% of deodorant, 0-2% of adhesion promoter, 0-30% of thixotropic agent, 0-2% of light stabilizer and 0-2% of antioxidant. Compared with the traditional polyurethane sealant, the polyurethane sealant provided by the invention emits no odor when being used in a long-term closed high temperature (80 DEG C) environment, and the odor rating is 1 level, so the polyurethane sealant has the advantages of being odor-free, low in TVOC and harmless to human body and environment, satisfies the air quality evaluation guidance requirements of passenger cars, and is suitable for sealing and joint filling of automotive trims.

The invention discloses a low-odor and low-emission whitened red phosphorus flame retardation master batch for nylon, and a preparation method thereof. The master batch is prepared from, by weight, 50-85 parts of whitened red phosphorus, 1-5 parts of a hydrophobic odor adsorption master batch, 0.2-1.0 part of an antioxidant and 0.2-1 part of a lubricant. The red phosphorus flame retardation master batch prepared in the invention has the advantages of wide versatility, high effective components, no obvious odor and low addition amount, and the preparation method has the advantages of simplicity, breaking of color limitation, realization of the product being not limited to dark products, effective reduction of dust pollution, and improvement of the labor environment.

The invention discloses a low-odor polypropylene composition as well as a preparation method and an application thereof, polypropylene resin is used as a matrix, a composite adsorbent is added, and the composite adsorbent has an acid absorption effect, can inhibit degradation reaction of the polypropylene resin in the processing process, and has a relatively strong adsorption effect on various volatile components; along with the increase of the service time, small odor molecules cannot be gradually separated out, so that the obtained polypropylene composition has the characteristics of low odor and low TVOC, the mechanical property of the material cannot be influenced, in addition, the preparation method provided by the invention is simple and feasible, and the low-odor polypropylene composition provided by the invention can be used for preparing the automotive upholstery, the prepared product has the characteristics of low odor and low TVOC, and meets the odor standard of an automotive interior trim part material.

A process for production of wood-base materials from lignocellulosic comminution product is disclosed. The wood-base materials are treated with at least one additive in the course of their production to reduce or diminish the emission of volatile organic compounds (VOCs) and, optionally, very volatile organic compounds (VVOCs), in particular terpenes and acids. The treatment is effected with one additive, being a porous carbon, like activated carbon. In another aspect, the present application is directed to the use of porous carbon, in particular, activated carbon, to reduce or diminish the emission of VOC, and optionally, VVOC, to reduce or diminish the emission of terpene and acids and aldehydes. Also, wood-base materials which are obtainable with the process or wood-based materials produced by using the additives mentioned above and which have reduced emission of VOCs, in particular terpenes and acids but also aldehydes are disclosed.

The invention discloses a foamed polypropylene composite sheet and a preparation method thereof. The foamed polypropylene composite sheet comprises a toughening layer, a reinforcing layer and a core layer sequentially from outside to inside, wherein the toughening layer comprises crosslinked foamed polypropylene with the surface composited with a thermoplastic elastomer or polyvinyl chloride, thereinforcing layer comprises a polyester/polyolefin/organic montmorillonite compound, the core layer comprises a foamed composite material with the foaming ratio being 2-5 times, the thickness of the composite sheet is 4-6 mm, and the bending modulus of the composite sheet is 1100-1400 MPa. According to the foamed polypropylene composite sheet, in the increasing process of the foaming ratio, the high bending strength is still maintained, due to the fact that high specific-surface and high surface activity inorganic particles are added into the composite sheet, the product has certain adsorptioncapacity for harmful gas, the purpose of reducing release of VOC is achieved, and the foamed polypropylene composite sheet is suitable for being used and promoted.

The invention provides a polyformaldehyde composition and a preparation method thereof, and relates to the technical field of high polymer materials. The polyformaldehyde composition is prepared fromthe following raw materials: polyformaldehyde, ultra-high-molecular-weight polyethylene modified glass fibers, odor-adsorption master batches, molybdenum disulfide, a lubricant and an antioxidant. Thepolyformaldehyde composition disclosed by the invention has low odor and good wear resistance and stability. Through the adoption of the matching effect of the raw materials such as the ultra-high-molecular-weight polyethylene modified glass fibers, the odor-adsorption master batches and the like, the low-odor characteristic of the polyformaldehyde composition is ensured, and the physical and mechanical properties of the polyformaldehyde composition and the moulding processability of the material are not affected at the same time.

The invention belongs to the field of water-based polymer materials, and particularly relates to a modified potassium silicate styrene-acrylic emulsion and a preparation method thereof as well as a preservative-free and solvent-free water-based polymer material and a preparation method thereof. The modified potassium silicate styrene-acrylic emulsion comprises methyl methacrylate, butyl acrylate, styrene, sodium bicarbonate, potassium persulfate, an emulsifier, a silane coupling agent, quaternary ammonium salt containing unsaturated double bonds, organic silicon modified potassium silicate, protective glue and water. The preservative-free solvent-free water-based polymer material provided by the invention is not added with preservatives and organic solvents, has extremely low VOC (Volatile Organic Compounds), SVOC (Soluble Volatile Organic Compounds) and TVOC (Total Volatile Organic Compounds), does not detect free formaldehyde, and has the characteristics of excellent alkali burnout resistance, alkali burnout resistance, storage stability and the like.

The present invention provides a resin composition for core-sheath type bi-component fiber that not only maintains excellent softness, but also improves tensile strength, when preparing non-woven fabric, particularly spunbond non-woven fabric.

The invention provides a polyamide composition as well as a preparation method and application thereof. The polyamide composition comprises the following components: polyamide resin, polyethylene naphthalate (PEN) resin, a reinforcing phase, a modified molecular sieve, polyquaternium and an auxiliary agent, the modified molecular sieve is a gold bromide modified molecular sieve. According to the polyamide composition, the PA is blended with the PEN resin, and the gold bromide modified molecular sieve and the polyquaternium are added, so that the ion barrier property and the gas barrier property of the polyamide composition can be improved, the volatility of small molecular substances in the composition is reduced, the small molecular substances are not easy to desorb, the precipitation of impurities is effectively reduced, and the service life of the composition is prolonged. In addition, by adding the polyquaternium, impurity ions such as sulfate ions in a resin system are fully reacted, and ion precipitation is reduced. The polyamide composition disclosed by the invention has the advantages of low impurity, low ion precipitation and low TVOC (Total Volatile Organic Compound).

The present disclosure provides a novel transition metal compound which exhibits excellent catalytic activity and is useful in the preparation of a polypropylene having high impact strength, and a method for preparing a homo polypropylene using the same.

The invention relates to the technical field of polymer preparation, in particular to air-drying water-soluble acrylic resin and a preparation method thereof; the air-drying water-soluble acrylic resin comprises 20-40 wt% of a solvent; 40-50 wt% of a monomer mixture; 0.5-5 wt% of a special monomer; 0.01-1 wt% of an initiator; 5-10 wt% of a neutralizer; and 5-15 wt% of deionized water. The water-soluble acrylic acid disclosed by the invention has excellent water resistance, has good adhesive force on substrates such as tinplate, galvanized steel, aluminum materials, glass, wood and the like, and can be used for preparing self-spraying paint and interior wall waterproof paint. According to the invention, special functional groups, such as phosphate group, amide group, carbamido group, carbamate group, siloxane group and epoxy group, are synthesized through free radical reaction; meanwhile, the material contains the macromolecules with hydrophilic groups such as carboxyl and hydroxyl; after neutralization by adding a neutralizer, air-drying water-soluble acrylic resin is obtained, and the acrylic resin has proper viscosity and can promote formation of a uniform coating on a base material and promote improvement of water resistance.