11results about How to "Improve dispersion compatibility" patented technology

The invention discloses a production process of antistatic polyamide fiber, and relates to the technical field of textile chemical fiber production, the antistatic polyamide fiber comprises the following raw materials by weight: 30-40 parts of polyethylene glycol terephthalate, 60-70 parts of polyamide, and 3.6-4.8 parts of master batch. The master batch is prepared from the following raw materials in parts by weight: 80 to 90 parts of polyamide, 2 to 4 parts of an antistatic agent, 0.7 to 0.9 part of an anti-ultraviolet agent, 0.7 to 0.9 part of an auxiliary agent, 2.5 to 3.5 parts of a toughening agent and 0.5 to 0.7 part of a dispersing agent. The synthesized antistatic agent contains carbon fibers, a polyether structure, an amide structure and a DOPO structure, so that the antistatic property and flame retardance of the antistatic polyamide fiber are improved. The synthesized anti-ultraviolet agent contains a benzimidazole structure, a sulfydryl ester structure, a hindered phenol structure and an amide structure, so that the ultraviolet aging resistance of the antistatic polyamide fiber is improved.

The invention discloses an aging-resistant overhead cable, relates to the field of cables, and comprises a core, an insulating layer and an outer sheath from the inside out, wherein the outer sheath comprises the following raw materials in parts by weight: 100-110 parts of EPDM rubber, 4-6 parts of zinc oxide, 5-7 parts of antioxidant, 45-55 parts of flame retardant filler, 4-6 parts of silane coupling agent, 4-6 parts of microcrystalline wax, 4.5-5.5 parts of vulcanizing agent and 1.5-2.5 parts of crosslinking aid. The antioxidant comprises a hindered phenol structure, a phosphite structure and a capsaicin structure, and improves the aging resistance and rodent resistance of the overhead cable. The flame retardant filler comprises a POSS structure, a castor oil-based unsaturated alkane long chain and an organic montmorillonite, and improves the mechanical properties, high temperature resistance and flame retardancy of the overhead cable.

The invention relates to the technical field of C08K3 / 26, in particular to a stearic acid coated calcium carbonate dispersoid and a preparation method and application thereof.The stearic acid coated calcium carbonate dispersoid is at least prepared from, by weight, 700-800 parts of stearic acid coated calcium carbonate, 10-25 parts of dispersing agent, 0.5-2 parts of defoaming agent and 200-300 parts of water; the stearic acid coated calcium carbonate is matched with the dispersing agent and the defoaming agent to obtain the low-viscosity stearic acid coated calcium carbonate dispersion which is uniform in dispersion and fine in material body, and the subsequent application requirements in rubber products are met.

The present application relates to the field of degradable tapes, and in particular to a degradable tape and its preparation method and application. The degradable tape comprises a degradable base layer, a degradable adhesive layer on the surface of the degradable base layer, and a release layer having a protective effect on the other side of the degradable adhesive layer. The raw materials of the degradable base layer, in parts by mass, include: 100-150 parts of base resin, 40-60 parts of filler, 5-10 parts of lubricant, 20-40 parts of filler, and 1-10 parts of auxiliary agent. The degradable tape prepared in the present application can greatly improve its waterproof, mechanical and aging resistance properties while ensuring its excellent adhesion, effectively solving the performance problems of the degradable tapes on the existing market, having a very excellent market prospect, and further broadening the application field and use environment of the degradable tape. The preparation method is simple and easy to implement, providing a solution basis for subsequent large-scale production.

The invention relates to a heating power cable, belonging to the technical field of cables, comprising a PTC core tape, an insulating layer and a sheath layer. The interior of the heating power cable is protected by improving the performance of the sheath layer. When preparing the sheath material of the sheath layer, a reactive additive is added. The reactive additive and the raw material can be cross-linked with the active groups on the surface of the filler during the blending or extrusion process. On the one hand, the dispersion compatibility of the inorganic mixture in the matrix can be improved, and the flame retardancy and mechanical properties of the sheath material can be improved at the same time. On the other hand, the cross-linked structure as a part of the sheath material has a good bonding effect. At the same time, the hydroxyl group of the reactive additive itself can also be cross-linked to form a continuous structure, showing hydrophobicity, cooperating with the structure of the perfluoroalkyl group, and can effectively reduce its surface tension, showing excellent hydrophobicity and oleophobicity, and having good protective performance for the cable.

The invention belongs to the field of photovoltaic materials. The invention relates to a macromolecular light conversion agent and a preparation method thereof, and a photovoltaic packaging light conversion adhesive film, the preparation method of the macromolecular light conversion agent comprises the following steps: carrying out substitution reaction on benzotriazole and liquid bromine to obtain an intermediate product I; carrying out substitution reaction on the intermediate product I and bromo-ester to obtain an intermediate product II; carrying out coupling reaction on the intermediate product II and a vinyl phenylboronic acid derivative to obtain an intermediate product III; carrying out substitution reaction on bromofluorene and alkyl bromide to obtain an intermediate product IV; carrying out coupling reaction on the intermediate product IV and a vinyl phenylboronic acid derivative to obtain an intermediate product V; and carrying out free radical polymerization reaction on the intermediate product III and the intermediate product V to obtain the macromolecular light conversion agent. Through the self-made macromolecular light conversion agent, the problems of narrow and single absorption peak, low light utilization rate, poor stability, easiness in precipitation and the like of the conventional organic light conversion agent benzotriazole for the photovoltaic plugging eye gel film are effectively solved.

The application discloses a high water pressure resistant, low temperature flexible waterproof and moisture permeable composite fabric and a preparation method thereof. The modified nano silicon dioxide has a nano scale effect, can efficiently shield ultraviolet radiation, and has chemical stability, endowing the material with inherent ability to resist external salt corrosion, and builds a double barrier of resistance to ultraviolet and salt corrosion in the fiber. The micro-nano surface topology of the pine needle shell layer increases the effective exposed area of the modified nano silicon dioxide, optimizes the functional interface, and the axial hollow cavity forms a stress buffer channel in the fiber, reduces the damage of external mechanical stress to the modified nano silicon dioxide dispersion structure to maintain uniform distribution. The high efficiency shielding and chemical resistance of the modified nano silicon dioxide resist ultraviolet penetration and salt erosion, and the micro-nano structure and hollow cavity of the pine needle shell layer maintain low temperature flexibility, and realize the balance of high water pressure resistance, waterproof and moisture permeability and resistance to ultraviolet and salt corrosion.

The invention discloses modified waterproof coiled material asphalt and a preparation method thereof, and belongs to the technical field of waterproof coiled material asphalt. In the prior art, the compatibility between a nanometer material and asphalt and other oily materials is poor, so that the nanometer material is peeled off from the waterproof coiled material, the high-temperature and low-temperature performance of the waterproof coiled material is influenced, the deformation of the waterproof coiled material is increased along with the temperature, and the coiled material cracks. The modified nano-silica modified asphalt comprises the following raw materials in parts by weight: matrix asphalt, petroleum resin, an SBS polymer, a solubilizer and modified nano-silica. Wherein the modified nano silicon dioxide is modified by the following steps: 1) carrying out low-temperature plasma surface treatment on nano silicon dioxide; the preparation method comprises the following steps of (1) preparing nano silicon dioxide, (2) uniformly mixing and stirring the nano silicon dioxide and naphthenic acid dispersion liquid, and reacting for 100-200 minutes at 70-80 DEG C. (3) separating, washing and drying a product to obtain the modified nano silicon dioxide. The compatibility of a nano material and asphalt is good, and the waterproof coiled material is good in high and low temperature performance, adhesion, stripping resistance and cracking resistance.

The present application relates to the technical field of paint, in particular to an alkali-resistant waterproof exterior wall paint and a preparation method thereof. In order to further improve the water resistance and alkali resistance of the stone-like paint, the stone-like paint is improved, a texture protective paint is added to the structure of the traditional stone-like paint, and colored sand is added to the components, so that a concave-convex texture can be provided for the surface of the stone-like paint after the stone-like paint is finally formed. In addition, boron nitride nanosheets are added to the texture protective paint and modified, and fluorine and silicon elements are introduced into the boron nitride nanosheets, so as to improve the chemical corrosion resistance of the resin, prevent the infiltration and invasion of external corrosive media, and effectively improve the acid and alkali resistance of the resin paint.

The application discloses a kind of polypropylene coating and preparation method thereof, belong to polypropylene coating technical field, first by photo-induced mercapto-alkene reaction preparation amino tung oil acid, again by template method copolycondensation synthesis mesoporous organosilica amino tung oil acid, simultaneously polypropylene and trifluoroethyl methacrylate melt grafting obtains TFEMA grafted modified polypropylene, finally with xylene as solvent, bismaleimide is used as crosslinking agent, and each component is blended to obtain polypropylene coating;The application is endowed with low surface energy and weathering stability by introducing fluorine-containing group to coating, combined with the ultraviolet shielding function of mesoporous organosilica, supplemented by BMI dynamic reversible crosslinking to build strong adhesion and self-repairing network, synergistically solve the technical problems that traditional polypropylene coating is poor in ultraviolet stability, weak in adhesion, and easy to age, significantly improve the outdoor durability, self-repairing and corrosion resistance of coating, and be applicable to outdoor building materials, automobile shell and other high-end protection fields with strict durability requirements.

The invention discloses a bio-based cobalt salt with resin characteristics and a preparation method thereof, and relates to the technical field of rubber products. The invention discloses a bio-based cobalt salt with resin characteristics. The bio-based cobalt salt is prepared from the following raw material components in parts by weight: 15-30 parts of first plant-based acid, 10-25 parts of second plant-based acid, 15-35 parts of a cobalt source, 25-35 parts of a solvent and 5-10 parts of a plant additive, the first plant-based acid contains a phenolic hydroxyl structure; vanillic acid is adopted as the first plant-based acid; cumaric acid is adopted as the second plant-based acid; the cobalt source adopts industrial cobalt hydroxide with the cobalt content of more than or equal to 61.5%; the solvent is dimethyl carbonate; the plant auxiliary agent adopts plant microcrystalline cellulose, and the purity of the plant microcrystalline cellulose is greater than or equal to 99%.