94 results about "Formaldehyde free" patented technology

The invention belongs to the technical field of biomass materials and environment-friendly adhesives, and relates to a biomass adhesive, in particular to a preparation method of a biomass environment-friendly adhesive based on longan shells, which comprises the following steps: firstly, cleaning, drying, crushing and screening the longan shells for pretreatment, and then carrying out alkalization and acetylation chemical modification to obtain the biomass environment-friendly adhesive based on the longan shells. And finally, compounding with gelatinized starch, a chitosan acetic acid solution and citric acid, and adjusting the viscosity to obtain the adhesive. The waste longan shells are used as raw materials, agricultural waste recycling is achieved, the product is free of formaldehyde release and biodegradable, and the viscosity of the prepared adhesive is 1000-2000 mPa.s at the temperature of 25 DEG C and is measured through a rotary viscometer; the wood-wood bonding strength is larger than or equal to 2.5 MPa, the 24-hour water absorption rate is smaller than or equal to 25%, the problems that a traditional biomass adhesive is short in performance and low in cost, special equipment is not needed for preparation are solved, the adhesive is suitable for the industrial fields of artificial board manufacturing, furniture manufacturing and the like, and environment-friendly transformation of the adhesive industry is promoted.

The invention discloses a preparation method of an environment-friendly 3D printing three-dimensional surface floor, which comprises the following steps: S1, drawing a plane drawing of the floor, generating a 3D model of the floor by using a computer, and obtaining all layered structures and arrangement modes for forming the floor; and S2, raw materials for preparing the floor are prepared according to the 3D model of the floor in the S1, the raw materials are conveyed into a 3D printer for 3D printing, and all layered structures for the floor are printed. Through a sustainable raw material system, a formaldehyde-free laminating process, high-precision 3D printing texture forming, a three-layer environment-friendly protection layer, a bio-based edge sealing technology and an internet-of-things intelligent production system, production energy consumption is reduced by 40%, waste is reduced by 50%, closed-loop recovery is achieved, meanwhile, the international environment protection certification is met, the production efficiency is improved by 30%, and the production cost is reduced. And a full-chain green manufacturing scheme for synergistically improving the environmental protection performance, the production efficiency and the product quality is formed, and the double-carbon target requirement is met.

The invention relates to the field of bamboo veneer processing, in particular to a method for widening a large-breadth flattened sliced bamboo veneer, which comprises the following steps of: compounding the sliced bamboo veneer with gauze or non-woven fabric by hot pressing; edge cutting and width fixing are conducted on the compounded sliced bamboo veneers; glue is smeared in the thickness direction of the sliced bamboo veneers; the sliced bamboo veneers are placed in an environment of 30-50 DEG C, and glue is dried; the dried sliced bamboo veneers are placed in a board splicing machine for pre-splicing; and hot-pressing and compounding the sliced bamboo veneer and the gauze or the non-woven fabric again to obtain a finished product. The formaldehyde-free environment-friendly adhesive is adopted, so that chemical pollution is reduced; the side face of the sliced bamboo veneer is pre-spliced and combined with gauze / non-woven fabric, multiple times of gum dipping is avoided, and gum consumption can be reduced; continuous veneers with the width of 2-10 m or above can be prepared, cloth-shaped veneering materials are achieved and directly used for wall decoration, and machining links can be reduced; the cut bamboo wood is suitable for household products such as stationery bags and computer supports, and the application dimension of the bamboo wood can be expanded.

The invention discloses a preparation method and an application process of an environment-friendly stiffening agent, the molecular chain of the environment-friendly stiffening agent is as follows: (X-O) r-W-(O-(CO-Z-CO-O-Y-O) p-X) q, W is a (q + r)-valent organic group, (CO-Z-CO-O-Y-O) is a polyester resin skeleton taking a polycarboxylic acid component Z and a polyol component Y as polymerization components, and the formula is shown in the description. And X represents a residue of a polyacid having two or more carboxyl groups or hydrogen. The environment-friendly stiffening agent has the beneficial effects that the environment-friendly stiffening agent in the technical scheme has relatively high adhesion to polyester, can be co-melted with the polyester under the action of heat, is free of formaldehyde release, and has a strong hydrophilic group sulfonic acid group, so that the environment-friendly stiffening agent in the technical scheme has good water dispersibility, is convenient to store and simple in finishing process, and is suitable for industrial production. The problems of formaldehyde, yellowing, white marks, odor and softening of a traditional stiffening agent are effectively solved.

The utility model relates to the technical field of building decoration materials, and discloses an environment-friendly decorative plate for indoor decoration, which comprises an outer frame, an environment-friendly mechanism is mounted on the inner wall of the outer frame and used for improving the water resistance and deformation resistance of the decorative plate, and mounting mechanisms are mounted on the front side and the rear side of the outer wall of the environment-friendly mechanism. And the mounting mechanism is used for conveniently mounting the decorative plate. The aluminum alloy keel material forms a net structure and a space stress system, loads can be transmitted in multiple directions, single-point stress concentration is avoided, the base material layer is formed by pressing bamboo and wood fibers and environment-friendly adhesives, the environment-friendly performance is excellent, formaldehyde release is avoided, the reinforcing layer is the glass fiber gridding cloth, the reinforcing layer is compounded with the base material layer through the hot pressing technology, and the heat insulation performance is good. And the finish coat is a water-based UV coating and covers the surface of the enhancement layer through a spraying process, so that the water resistance and the deformation resistance are high, and the water-based UV coating is suitable for a humid environment.

The invention provides a lyocell fabric dyeing anti-fibrillation finishing method which is characterized by comprising the following steps: 1, desizing and cleaning a lyocell fabric, feeding water according to a bath ratio of (1: 4)-(1: 20) to run the lyocell fabric, adding an anti-fibrillation cross-linking agent according to 3%-10% owf, adding a proper amount of reactive dye, and running uniformly; the anti-fibrillation cross-linking agent is a polyfunctional group compound containing more than two monochloro-s-triazine active groups and / or vinyl sulfone sodium sulfate active groups; the reactive dye comprises one or more of a monochloro-s-triazine type, a vinyl sulfone type, a monochloro-s-triazine group and a vinyl sulfone group double-active-group type; 2, anhydrous sodium sulphate is added, the temperature is increased to 60-70 DEG C, 15-25 g / L of sodium carbonate is added, and operation is conducted for 35-55 min; and 3, the temperature continues to rise to 75-85 DEG C, operation is conducted for 10-20 min, and drainage and cleaning are conducted after cooling. The process is simple, the flow is short, fibrillation can be prevented, the dyeing effect is good, formaldehyde release is avoided, a large amount of water resource consumption is saved, and wastewater discharge is reduced.

The utility model belongs to the technical field of double-clean solid core boards, and particularly relates to a double-clean solid core board which comprises a frame sealing frame, a Chinese oak board is fixedly installed in the frame sealing frame, waterproof layers are fixedly installed on the top of the Chinese oak board, the opposite sides of the two waterproof layers are tightly bonded with the same Chinese oak board through a first DM I adhesive layer, and a second DM I adhesive layer is arranged on the other side of the two waterproof layers. When the whole Chinese oak board is used, the whole Chinese oak board is compact in structure, high in hardness, capable of resisting abrasion and corrosion and long in service life, the whole board is high in stability and not prone to deformation, and the fireproof layer is arranged on the side, away from the waterproof layer, of the whole board. Meanwhile, the first DM I adhesive layer, the second DM I adhesive layer and the third DM I adhesive layer are free of formaldehyde, formaldehyde release is completely eradicated from the source, harm of formaldehyde to human health and pollution to the environment can be effectively avoided, and healthy and environment-friendly living and working space can be provided for people.

The invention relates to an aqueous binder composition free of phenol and formaldehyde.

The invention relates to the technical field of air pipe valves, in particular to a module assembly type formaldehyde-free noise reduction air pipe valve. Comprising a silencing lining layer, mounting frames arranged at the front end and the rear end of the silencing lining layer, mounting holes formed in the four corners of the mounting frames, a rectangular valve pipe arranged on the outer side of the silencing lining layer and located between the two mounting frames, and a valve shaft vertically and rotationally mounted in the middle of the silencing lining layer. According to the formaldehyde-free noise reduction air pipe valve, the structure of an original formaldehyde-free noise reduction air pipe valve is scientifically and reasonably improved, the formaldehyde-free noise reduction air pipe valve is mainly composed of the noise reduction lining layer, the installation frame, the outer frame body, the inner spiral sleeve and the valve assembly, and tool-free modular assembly operation between components of the formaldehyde-free noise reduction air pipe valve can be achieved; and the assembling operation workload and difficulty of the formaldehyde-free silencing air pipe valve are effectively reduced, so that the assembling and processing efficiency and convenience of the formaldehyde-free silencing air pipe valve are improved.

A water based 2K coating composition, containing one or more water soluble epoxy resins, one or more water soluble curing agents, and water, wherein the composition is substantially isocyanate free, along with a method for coating a substrate using the water based 2K coating composition. Additionally, an epoxy coating composition containing a multifunctional aliphatic epoxy resin crosslinked with a di- or higher-functional curing agent, either of an acrylic resin or a modified cellulose acetate resin, and a carrier, wherein the epoxy coating composition is at least one of substantially isocyanate free, substantially formaldehyde free, or substantially bisphenol-A free, along with a method for coating a substrate with the epoxy coating composition.

The invention relates to an aqueous binder composition free of phenol and formaldehyde.

The invention discloses a formaldehyde-free water-resistant soybean meal-based composite adhesive and a preparation process of the formaldehyde-free water-resistant soybean meal-based composite adhesive on a multifunctional artificial board, and relates to the technical field of bio-based adhesives and wood processing. The adhesive is prepared from a soybean meal main raw material, a plant-based composite cross-linking system, a nano-mineral synergistic reinforcing phase, an interface regulating agent and a compound curing agent through a two-stage mixing technology, and the problems that a traditional soybean meal adhesive is poor in water resistance, uneven in dispersion, limited in applicable plate type, single in function and the like are solved. The obtained adhesive is free of formaldehyde release, the prepared artificial board (multilayer plywood, shaving board, fiberboard and the like) is free of glue failure after being boiled in boiling water for 2 h, the normal water absorption rate is smaller than or equal to 8%, the dry static bending intensity is larger than or equal to 15 MPa, meanwhile, the antibacterial rate is larger than or equal to 90%, the technology is compatible with an existing production line, the cost is reduced by 30%-40% compared with a traditional PAE type adhesive, and the adhesive is suitable for industrial production. The composite board can be widely applied to the fields of boards for furniture manufacturing, indoor decoration and humid environments.

The invention discloses a laminated ceiba flame-retardant composite material and a preparation method thereof, and belongs to the technical field of artificial board processing. According to the composite material, wood fibers made of waste wood and recycled and smashed straw serve as main raw materials, and the straw and the wood fibers in a stirring state are treated through a bio-based organophosphorus flame retardant, so that the straw and the wood fibers have the flame retardant property; a formaldehyde-free adhesive is applied to glue the straw and the wood fibers, a structure with the upper surface layer and the lower surface layer made of the wood fibers and the core layer made of the straw is formed through lamination paving, and then the laminated type kapok flame-retardant composite material is obtained through hot pressing treatment. The laminated ceiba flame-retardant composite material prepared by the invention has excellent mechanical properties and flame retardance, the elastic modulus is greater than or equal to 2540.56 MPa, the static bending intensity is greater than or equal to 19.93 MPa, and the laminated ceiba flame-retardant composite material is environment-friendly, free of formaldehyde release and suitable for the fields of buildings, furniture and the like.

The invention belongs to the technical field of structural adhesives, and discloses an environment-friendly polyurethane structural adhesive and a preparation method thereof. According to the invention, polyether polyol, isocyanate and a diluent are adopted as a basic system, an environment-friendly flexibilizer, an anti-aging agent and a coupling agent are innovatively added, and the environment-friendly polyurethane composite material is prepared by compounding the following components in parts by mass: 30 parts of polyether polyol, 50 parts of isocyanate, 20 parts of an environment-friendly diluent, 3-5 parts of an environment-friendly flexibilizer, 1-2 parts of a bio-based anti-aging agent and 0.5-1 part of a silane coupling agent. The prepared structural adhesive does not release harmful substances such as formaldehyde and benzene series, has higher bonding strength, excellent flexibility, aging resistance and base material adaptability, is simple and environment-friendly in preparation process, can be widely applied to the fields of furniture manufacturing, plate bonding, buildings and the like, and is remarkable in practicability and market prospect.

Coating compositions comprising a phenolic resin and a film-forming resin having functional groups that are reactive with the functionality of the phenolic resin are disclosed herein. The phenolic resin comprises a phenol group containing compound and a glyoxylic acid containing compound. Such phenolic resins may be used as formaldehyde-free crosslinkers in coating compositions and such coating compositions may be used on substrates comprising a non-porous material, such as metal, glass, and / or plastic. Also disclosed are methods of coating a substrate and coated substrates, including food and / or beverage containers.

The invention relates to a non-destructive measuring method for determining the amount of a formaldehyde-free binder applied to wood particles in an online manner in a production system for producing wood panels, the measuring method comprises the following steps: applying at least one formaldehyde-free binder to a respective sample made of wood particles as a reference sample in different quantificationally defined amounts, and spreading the reference sample onto a conveyor belt; recording at least one NIR spectrum of each of the reference samples spread onto the transport belt in a wavelength range of between 1000 nm and 2500 nm, preferably between 1350 nm and 2500 nm, using at least one NIR measuring head; correlating different quantified amounts of formaldehyde-free binder of the reference sample dispensed onto the conveyor belt with the recorded NIR spectrum of the mentioned reference sample; and creating a calibration model for the association between the spectral data of the NIR spectrum and the affiliated quantitative amount of formaldehyde-free binder of the reference sample dispensed onto the conveyor belt by means of multivariate data analysis; applying at least one formaldehyde-free binder to the wood particles (as a sample to be measured) and spreading the wood particles provided with the formaldehyde-free binder onto a conveyor belt; recording, using at least one NIR measuring head, at least one NIR spectrum of the wood particles provided with the formaldehyde-free binder and spread onto the conveyor belt in a wavelength range between 1000 nm and 2500 nm, preferably between 1350 nm and 2500 nm; and determining a quantitative amount of formaldehyde-free binder applied to the wood particles spread onto the conveyor belt by comparing the recorded NIR spectrum for the wood particles provided with the binder with the created calibration model.

The invention relates to the technical field of pigments, in particular to a water-based formaldehyde-free painting pigment and a preparation method thereof. The method is realized by the following steps: firstly, grafting an initiator on the surface of amino mesoporous silica, and then grafting a zwitter-ion / hydrophobic copolymer brush on the surface of the amino mesoporous silica through purple light initiated polymerization; then preparing an acrylate pre-emulsion containing the functional nanoparticles, and carrying out semi-continuous emulsion polymerization to obtain a self-crosslinking emulsion; then introducing adipic dihydrazide as a latent cross-linking agent; and finally, adding functional nano-particles in multiple stages, mixing the functional nano-particles with pigments, auxiliaries and the like, and sanding and blending to obtain a final product. Formaldehyde is completely abandoned, a unique organic-inorganic composite structure and a latent cross-linking technology are utilized, the water resistance, scrubbing resistance, adhesive force and color stability of the pigment are synergistically improved, and meanwhile, the pigment has good environment-friendly safety and easy-to-clean performance and is particularly suitable for the fields of children painting and the like.

The invention discloses a hydrophobic self-cleaning anti-reflection coating liquid and a preparation method thereof, and aims to overcome the defects in the aspects of hydrophobicity, weather resistance and environmental friendliness although an existing anti-reflection film technology can reduce the optical reflectivity. Aiming at the problems, the molecular-level synergistic effect among the components is realized through the following innovative combination, so that the limitation of the traditional technology is broken through: through the unique combination and proportion of chitosan, long-chain alkyl silane and perfluorosilane as well as glutamine and ethyl acetate, 'high anti-reflection (llt), which cannot be realized by a single component, is converted into high anti-reflection (llt), high anti-reflection (llt), high anti-reflection (llt), high anti-reflection (llt), high anti-reflection (llt) and high anti-reflection (llt); 2.5%) + super-hydrophobic (gt; and the trinity performance of environmental protection (formaldehyde-free) is realized.

The invention discloses a water reducing agent as well as a preparation method and application thereof, and relates to the technical field of concrete admixtures. The water reducing agent is prepared by compounding a water reducing mother solution and a slump retaining mother solution, wherein the water reducing mother solution is prepared by copolymerizing an unsaturated polyether macromonomer, unsaturated acid, an oxidizing agent, a chain transfer agent and a reducing agent; the slump retaining mother liquor is prepared by copolymerizing an unsaturated polyether macromonomer, unsaturated acid, a slump retaining functional monomer, an oxidizing agent, a chain transfer agent and a reducing agent. The polycarboxylic acid water reducer belongs to a high-performance polycarboxylic acid water reducer, through a scheme of compounding the water reducing mother solution and the slump retaining mother solution, the synergy of early-stage high water reducing dispersion and long-acting slump retaining is realized, and the problems that the slump loss of concrete is large through time, the concrete is sensitive to mud-containing gravels and the adaptability is insufficient are obviously improved. The water reducer is long in slump retaining time, good in dispersion stability, high in mud resistance, simple in preparation process and free of formaldehyde pollution, belongs to a low-carbon environment-friendly additive, is excellent in comprehensive performance and is particularly suitable for high-temperature and long-distance transportation or complex construction scenes with high mud content.

The invention discloses a sandwich composite wallboard produced based on plant straws and a preparation method of the sandwich composite wallboard, and belongs to the technical field of composite wallboards. The preparation method comprises the following steps: crushing plant straws, and carrying out alkaline modification treatment to obtain modified plant straw powder; the modified plant straw powder is mixed with expanded perlite, a starch binder, a flame retardant and a composite plasticizer to prepare a core layer mixture, and the core layer mixture is mixed with glass fibers, a waterborne polyurethane binder, a silane coupling agent and talcum powder to prepare a panel mixture; after a panel-core layer-panel sandwich structure is laid, a finished product is obtained after hot press molding and maintenance. According to the invention, the interfacial compatibility of the straws is effectively improved through alkaline modification, and the wallboard has excellent mechanical strength, thermal insulation property and flame retardant property through sandwich structure design and reasonable compounding of functional aids, is free of formaldehyde release, and realizes high-valued utilization of agricultural wastes and collaborative optimization of green building functions.

This invention discloses a carbon fiber fabric softener and antibacterial two-in-one care liquid, belonging to the field of functional daily chemical technology for post-clothing care. Addressing the shortcomings of traditional fabric softeners, such as limited functionality (only softening fabrics), lack of antibacterial, odor-removing, and antistatic effects, the tendency of chemical softeners to leave residues that can damage skin and fabrics, and the inability to neutralize detergent residues, this invention innovatively uses hydrophilic modified carbon fiber as the core carrier for physical antibacterial action. It is formulated with natural plant softening factors and highly effective antistatic agents, with the hydrophilic modified carbon fiber content strictly limited to 5%-8%. This invention achieves multiple functions in one, including fabric softening, long-lasting physical antibacterial action, odor removal, long-lasting antistatic effect, and neutralization of laundry detergent residue. It effectively smooths frizzy fabric fibers, reduces pilling and wrinkles, and is completely free of fluorescent agents, formaldehyde, and harmful chemical softener residues. It is gentle on fabrics and skin, suitable for both machine and hand washing, and widely applicable to various fabrics such as cotton, linen, knitwear, and underwear. The technical solution is simple, clear, and highly practical for implementation.

The application discloses an epoxy resin-based corn straw composite board and a preparation method thereof, and belongs to the technical field of biomass materials and composite materials. The method comprises the following steps: crushing corn straw, and screening to obtain corn straw powder with a fiber length; mixing the corn straw powder and epoxy resin powder according to a mass ratio to obtain mixed raw materials; and placing the mixed raw materials under a preset temperature and pressure, and performing heat preservation and pressure preservation treatment for at least 2 hours, and then demolding to obtain the epoxy resin-based corn straw composite board. The hydrogen bond network formed by cellulose, hemicellulose and lignin in the corn straw under high temperature and high pressure and the bonding effect of the epoxy resin form a synergistic reinforcing effect, without the need for complex pretreatment such as separation of the corn straw skin and pulp, enzyme etching or nano-cellulose impregnation, the whole preparation process does not add formaldehyde-containing adhesives, no formaldehyde and other organic volatile substances are released, and the specific process is simple, the mechanical properties are excellent, and the process is green and environmentally-friendly.

The invention discloses a flame-retardant and waterproof lignin-based formaldehyde-free adhesive as well as a preparation method and application thereof. No formaldehyde is released in the application process of the adhesive. According to the invention, biomass residue lignin and 5-hydroxymethylfurfural extracted from cellulose are used as a main raw material source for preparing the adhesive, the lignin is modified by Schiff base reaction, the 5-hydroxymethylfurfural is subjected to self-etherification or oxidation to prepare dialdehyde, the modified lignin is used for completely replacing phenol, the dialdehyde is used for replacing formaldehyde, and the adhesive is prepared. According to the present invention, the lignin-furfural system adhesive has characteristics of strong adhesion, strong water resistance and strong flame retardation, and compared with the adhesive prepared through the self-crosslinking of lignin, the prepared lignin-furfural system adhesive has characteristics of strong adhesion, strong water resistance and strong flame retardation, and further has characteristics of environmental protection, environmental protection and environmental protection. The dry shear strength is improved by 325%, the wet shear strength is improved by 258%, and the practical level and the national standard can be reached.

The invention discloses formaldehyde-free bio-based rubber powder and a use method thereof, and belongs to the field of wood adhesives. The invention aims to solve the problems of high use cost, high surface drying speed, short assembly time and poor process applicability of the existing isocyanate adhesive-based formaldehyde-free adhesive. The formaldehyde-free bio-based rubber powder consists of a component A and a component B, the component A is prepared by stirring and mixing a biomass raw material, high-oil plant material powder pre-emulsified by an emulsifier, choline chloride-urea, a pH buffering agent and a filler; and the component B is diphenylmethane diisocyanate. The use method comprises the following steps: 1, mixing the component A with water to obtain a glue solution, and then adding the component B to obtain the formaldehyde-free bio-based adhesive; and 2, coating a to-be-bonded plate with the coating, then assembling, and finally performing hot pressing. The invention is used for the formaldehyde-free bio-based rubber powder and the use thereof.

The invention discloses a modified vegetable protein adhesive and a preparation method thereof. The adhesive comprises two core types: one core type is prepared from vegetable protein meal, alkali, urea, water and a thiolated PAE resin cross-linking agent; and the other one is prepared from vegetable protein meal, alkali, urea, water and a water-borne epoxy resin cross-linking agent. The sulfhydrylated PAE resin cross-linking agent is prepared by grafting a sulfhydryl-containing compound to a polyamide polyamine main chain, and a compact cross-linked network can be formed through the effects of disulfide bond construction and the like; the water-borne epoxy resin cross-linking agent is prepared from epoxy resin, methacrylic acid, a comonomer and other raw materials through copolymerization and neutralization, and protein hydrophilic groups can be effectively blocked. The adhesive disclosed by the invention is modified by the specific cross-linking agent, so that the bonding strength and the water resistance are remarkably improved, meanwhile, the advantages of environment friendliness and no formaldehyde are kept, and the adhesive can be widely applied to manufacturing of artificial boards such as plywood and shaving boards.

The utility model relates to the technical field of textile chemical preparation equipment, in particular to reaction equipment for a formaldehyde-free crease-resistant finishing agent. According to the technical scheme, a third reaction pipe is connected with a second reaction pipe through a first reducer pipe, the second reaction pipe is connected with a first reaction pipe through a second reducer pipe, a collecting box is installed at the bottom end of the first reducer pipe and the bottom end of the second reducer pipe, and a slag discharging pipe is arranged at the bottom end of the collecting box. Electromagnetic heaters are mounted on the outer sides of the third reaction tube, the second reaction tube and the first reaction tube and are used for heating the heating lining, and deslagging mechanisms are mounted on the third reaction tube, the second reaction tube and the first reaction tube. Through the design of the reducing pipeline and the synergistic effect of the efficient deslagging mechanism and the electromagnetic induction heating system, the problems of low reaction efficiency, incomplete impurity removal, uneven temperature control and the like in the prior art are solved, and the synthesis quality and the production efficiency of the crease-resistant finishing agent are improved.

This invention belongs to the field of polymer chemical materials, specifically relating to a furan-free, low-odor, bio-based, formaldehyde-free mineral wool styling agent. Based on 100% solid content, it contains the following components in the following weight ratio: polydextrose: 100 parts; water-soluble resin crosslinking agent: 100-200 parts; wherein the water-soluble resin crosslinking agent is obtained from monomer raw materials through a copolymerization reaction; the monomer raw materials contain 70%-90% olefinically unsaturated carboxylic acid monomers and 10%-30% hydrophobic olefinically unsaturated monomers by molar percentage. The mineral wool styling agent provided by this invention is free of furan and formaldehyde, environmentally friendly, and has a lower odor; furthermore, the styling agent has a loss rate of less than 2%, and also exhibits good dry and wet strength and water resistance.

This invention belongs to the field of chemical synthesis and fiber preparation technology, and particularly relates to a composite modifier and its preparation method, as well as a urine-resistant nylon 6 fiber and its preparation method. This invention utilizes a triple synergistic mechanism of "amine hydrolysis inhibition - urate chelation - pigment adsorption" to block the chemical and physical causes of yellowing, fundamentally solving the problem of urine-resistant yellowing. Epichlorohydrin is used for crosslinking, and amino groups are introduced at the ends to form amino-terminated cyclodextrin derivatives. Urate chelation is achieved by grafting polyethylene glycol with sodium citrate, and nano-hydroxyapatite is introduced as an auxiliary component to reduce the generation of chromophores at the source. The fiber prepared by this invention maintains excellent mechanical properties while being formaldehyde-free and bisphenol A-free, fully complying with the safety standards for children's textiles. The innovative combination of in-situ polymerization and spray drying processes ensures uniform dispersion of functional components, solving the long-standing industry problem of agglomeration.

This invention relates to the field of building component technology, and more specifically, to an environmentally friendly cement slab component for the construction of sensitive information locations and its preparation. The component has a layered structure, consisting of a substrate layer, an adhesive layer, an insulation layer, an electromagnetic shielding layer, an adhesive layer, a sound insulation layer, a finishing layer, and an edge-sealing structure. The substrate layer is made from solid waste coal gangue, cement, slag powder, water, an activator, and silicon carbide fiber, through mixing, molding, and curing. This invention breaks through the dependence of traditional cement components on natural sand and gravel resources, using industrial solid waste coal gangue as the main functional raw material for the substrate layer, accounting for more than 20%. This achieves high-value utilization of solid waste resources while effectively reducing the consumption of natural mineral resources. The component uses environmentally friendly adhesives and formaldehyde-free decorative materials throughout the entire process, and no toxic or harmful substances are released during production and use, ensuring the safety of the indoor environment in sensitive information locations from the source, and meeting the requirements of green building and sustainable development.

The present application relates to adhesive, specifically relates to a kind of water-based automotive interior adhesive and its preparation method.The method includes: preparation water-based resin dispersion, adhesive raw material is formulated, mixing dispersion and defoaming treatment.The water-based automotive interior adhesive of the present application is a kind of water-based automotive interior adhesive product that is completely without formaldehyde release, curing speed is fast, bonding strength is high and cost is low.By using specific resin compound system and environment-friendly curing agent, the problem of formaldehyde residue and release in traditional water-based adhesive is completely solved.At the same time, by optimizing catalyst selection and filler system, the curing speed and bonding strength are significantly improved, and the production cost is reduced, so that it can meet the strict requirements of automotive interior bonding, and meet the increasingly stringent environmental regulations.