139 results about "Fibrous Glass" patented technology

A thermoplastic moulding composition, in particular a polyamide moulding composition, consisting of, by weight:

• (A) 20-88%—thermoplastic material;
• (B) 10-60%—fibrous fillers, formed from
  • (B1) 10-60%—glass fibres, selected from:
    • glass fibres (B1_1) with a non-circular cross section, wherein the axis ratio of the main cross-sectional axis to the secondary cross-sectional axis is at least 2;
    • high-strength glass fibres (B1_2) with a glass composition (substantially SiO2, AlO, and MgO; or mixtures thereof;
  • (B2) 0-20%—glass fibres, different from glass fibres of component (B1) and have a circular cross section; and
  • (B3) 0-20%—further fibrous fillers, different from fibres of (B1) and (B2), not based on glass, and selected from the group: carbon fibres, graphite fibres, aramid fibres, nanotubes;
• (C) 2-10%—LDS additive or a mixture of LDS additives;
• (D) 0-30%—particulate filler;
• (E) 0-2%—further, different additives;

the sum of (A)-(E) is 100% by weight.

The present invention provides nonwoven glass composites formed from an essentially boron free glass wool and an essentially boron free chopped glass fiber, used as a reinforcing material. The nonwoven glass composites are suitable for air filtration apparatus and can be used in the semiconductor industry where the elimination of boron from clean rooms is of importance.

The invention relates to polymer compositions comprising PCT (poly((cyclohexylene-dimethylene) terephthalate)) polymer and a fibrous glass filler having a non-circular cross-sectional aspect ratio of greater than at or about 4.

The invention relates to a static spinning method and a nano fiber/glass fiber composite filter material prepared by the same. According to the static spinning method, multiple needles are used to carry out static spinning, and the needles are insulated to each other. The nano fiber/glass fiber composite filter material is prepared by laminating and combining different filter materials together from bottom to top, wherein the filter efficiency of filter materials increases from bottom to top; the side, which is provided with static spun fibers, of each filter material layer is upward, the surface of the top layer is covered by glass fiber filter paper to ensure that the top layer and bottom layer of the filter material are both made of glass fiber filter paper. For two neighbored filter material layers, the filter efficiency of the upper layer on particles with a size of 0.02 to 10 [mu]m is 1.03 to 1.3 times higher than that of the lower layer. The composite filter material comprises two to six filter material layers, and has an sandwich structure, wherein in the sandwich structure, glass fiber filter paper and nano fiber with an electret effect are arranged alternately. The nano fiber/glass fiber composite filter material has a filter efficiency of 99.999% or more on particles with a size of 0.02 to 10 [mu]m, and the pressure resistance is maintained at 10 to 30 Pa.

A liner/insulator including a base layer of fibrous material and a plurality of ribs of fibrous insulation material thermally bonded to said base layer. The fibrous material is constructed of either (a) thermoplastic polymer staple fibers and thermoplastic bicomponent fibers, (b) glass staple fibers and thermoplastic bicomponent fibers and (c) a combination of (a) and (b).

The invention relates to a method for analyzing total arsenic in glass, comprising the following steps of: preparing sample digestion liquid by using nitric acid-hydrogen peroxide as the pre-oxidant and using hydrofluoric acid-perchloric acid as dissolver processing sample; and measuring the content of arsenic in the digestion liquid by an inductive coupling plasma atomic emission spectrum method. The analyzing method can effectively avoid volatilization loss of low-valent arsenic in the acid solution process; besides, devices such as a hydride generator and the like are not needed by directly measuring the arsenic content in the sample digestion solution; the dissolver is general and easy to obtain, and the digestion step is simple and controllable. Compared with the dissolving sample method of arsenic in the national standard GB/T 1549-2008 of the fibre glass chemical analyzing method, the method has the advantages that a great amount of impurity elements such as manganese, potassium, sulphur, and the like can not be introduced, thereby the method can be used for decomposing and measuring most chemical components including arsenic, manganese, potassium, sulphur, and the like in the glass ample in one step; and precipitation reaction is not performed between the dissolver and the chemical components in the sample so that the method can be used for measuring arsenic in high-lead glass sample.

An anticracking agent for the insulating and anticracking water-proof paint used for external wall is prepared from water, elastic acrylic emulsion, OP-10, ethanediol, defoaming agent, anticorrosion agent, methyl cellulose, glass microbeads, glass fibres, and wood fibre.

The invention discloses an optical fiber sensor combination for monitoring the corrosion of reinforced concrete. The optical fiber sensor combination comprises an optical fiber sensor and a compensation sensor, wherein the optical fiber sensor and the compensation sensor comprise reinforcing steel bar elements, reinforced fiber glass reinforced plastic support bases, optical fiber Bragg gratings and connecting optical fibers, protective sleeves, silicon sheets, reinforcing steel bar coating regions, reinforcing steel bar un-coating regions, and mortar housings, wherein the reinforcing steel bar elements of the optical fiber sensors are reinforcing steel bars to be tested, and the reinforcing steel bars of the compensation sensor are 316L stainless steel bars. According to the optical fiber sensor combination, a reaction force of mortar is counteracted to a certain extent, the local corrosion of the reinforcing steel bars is favorably monitored, and the sensitivity of monitoring is improved. The compensation sensor is made by adopting a manner of replacing common reinforcing steel bars by 316L stainless steel, and is simple in principle and convenient to operate. The optical fiber sensor combination is simple in structure, convenient to manufacture, low in cost, good in sensitivity, high in accuracy, strong in anti-electromagnetic interference, high in reliability, good in durability, and high in stability, and is suitable for monitoring the long-term durability of reinforcing steel concrete structures such as saline and alkaline land, seawater and deicing salt under multiple environments.

The invention discloses a fiber reinforced polyvinyl chloride composite floor and a production process thereof, belonging to the technical field of new materials. Through the use of carbon fiber, basalt fiber and glass fiber as additives, the three-layer fiber reinforced polyvinyl chloride composite floor is formed by using co-extrusion process. The upper and lower surface layers are made of fiber reinforced polyvinyl chloride, and the middle layer is polyvinyl chloride flooring. Using of fiber thermal stability and scientific formula, fiber reinforced polyvinyl chloride composite floor is lighter than the stone floor, and compared with ordinary PVC plastic flooring, the fiber reinforced polyvinyl chloride composite floor does not deform after sunlight irradiation for a long time and stability is good at average temperature. Fiber reinforced polyvinyl chloride composite floor is the ideal substitute for wood and machinable wood skin compound high-grade new floor is the most popular product in international market. The application technical problem of plastic flooring is solved by fiber modification, so that the technology application performance and the product technology content are improved and additional value is added.

Composites made from at least two plies are described, where one of the outer layers is a layer comprising glass fibers, and in particular is a staple glass fiber nonwoven. The layers have been bonded to one another by needling, and the extent of this needling is such that some of the fibers of the organic nonwoven emerge from the surface of the glass fiber sheet. The composite is then provided with a binder by using a rotating roll for single-side application to the glass fiber surface. The composites are particularly suitable for producing bituminized prefabricated roofing and waterproofing sheets, and as backings for coatings, e.g. PVC coatings.

The invention relates to a preparation method of a flame-retardant antistatic plastic liner plate. The preparation method comprises following steps: 1) polypropylene, high density polyethylene, glass fiber, glass bead, citric acid, talc, calcium carbonate, a silane coupling agent, POE, sodium dodecanesulphonate, decabromodiphenylethane, conductive carbon black, an anti-oxidant, and dicapryl phthalate are taken; 2) the raw materials above are mixed, and a mixture is obtained via stirring; 3) the mixture is delivered into a screw pelletizer for granulation so as to obtain plastic particles; and 4) the plastic particles are subjected to plasticizing using an extruder, are delivered into a mould, and then are subjected to pressing, demoulding, and burr removing so as to obtain the flame-retardant antistatic plastic liner plate. The flame-retardant antistatic plastic liner plate possesses excellent antistatic property and flame resistance, is capable of maintaining relatively high tensile property, is long in service life, is excellent in dry crack resistance, and wet resistance, and is especially suitable for using in severe environments such as environment with mine water and environment with high corrosivity.

Glass compositions are provided that are useful in a variety of applications including, for example, electronics applications, reinforcement applications, and others. Some embodiments of glass compositions can provide desirable dielectric constants, desirable dissipation factors, and/or desirable mechanical properties while also having desirable fiber forming properties.

Urea-formaldehyde (UF) resin binder compositions modified with a starch are described. The binder compositions may include about 1 wt. % to about 10 wt. % of a starch. In addition, fiber reinforced composites are described. The composites may include organic or inorganic fibers and a polymer matrix formed from a binder composition. The binder composition may include a UF resin and about 1 wt. % to about 10 wt. % of a starch.

The present invention relates to the use of polyester compositions made by melt blending a mixture comprising at least one thermoplastic polyester polymer and a combination of fibrous glass fillers having a non-circular cross-sectional aspect ratio of greater than at or about 4, mica and conventional glass fillers for applications where high dielectric performance and good mechanical properties are simultaneously required.

The invention discloses a composite-glass-fiber-reinforced gypsum board and a manufacturing method thereof. The manufacturing method comprises the following steps: (1) preparing glass fibers; (2) pretreating the glass fibers; (3) weighing graphene quantum dots, and preparing a 0.1-1 mg/ml dispersion solution, wherein the solvent is water, acetone or dimethylsulfoxide; carrying out ultrasonic agitation on 80-100ml of the graphene quantum dot dispersion solution, adding the pretreated glass fibers, carrying out ultrasonic agitation at half of the speed, and impregnating for 30-60 minutes; taking out the glass fibers, cleaning, and drying for later use; (4) preparing graphene-modified composite glass fibers; and (5) preparing the composite-glass-fiber-reinforced gypsum board. According to the composite-glass-fiber-reinforced gypsum board, the strength of the glass-fiber-reinforced gypsum board is effectively improved, and the water absorptivity is lowered.

The invention provides a glass steel tile back and a production process thereof. The glass steel tile back is prepared from epoxy resin, carbon fiber, glass fiber, basalt fiber, metal powder, a plasticizer, a curing agent, a flame retardant, a tackifier and packing. Due to reasonable proportions of the specific raw materials, the tensile strength of the tile back can be increased to 550-600MPa from conventional 370-500MPa, so that bent parts of the tile back can be effectively prevented from cracking, and the security of the tile back in the brake process is ensured; in addition, the glass steel tile back provided by the invention is excellent in corrosion resistance and high temperature resistance, a surface treatment procedure of the tile back can be avoided in actual production of a brake tile, the production efficiency can be improved, the applicable environment of the brake tile can be widened, and the service life of the brake tile can be prolonged.

The invention discloses long-acting antimicrobial glass fiber air filtering paper and a preparation method thereof. The preparation method comprises the following steps: (1) preparing glass fibers; (2) pretreating the glass fibers; (3) preparing silver-loaded glass fibers; (4) coating porous graphene; (5) preparing silver/titanium dioxide-loaded antimicrobial glass fibers; (6) preparing the glass fiber filtering paper. By the method provided by the invention, the glass fibers are more effectively coated with graphene, silver and titanium dioxide in a uniform and dispersive manner, and the interaction area and the interface bonding strength of the glass fibers are further increased, so that the mechanical property of the glass fiber filtering paper is more excellent and the strength and the stiffness of the material are greatly improved; the composite material has an excellent antimicrobial property due to the antimicrobial characteristics of silver and titanium dioxide.

The invention provides thermosetting engine oil filter paper which comprises a paper filter layer and a resin layer, and the paper filter layer is coated with the resin layer; the paper filter layer is prepared from the following raw materials in percentage by mass: 10%-30% of coniferous wood fibers, 25%-50% of mercerized pulp fibers, 0%-15% of cotton linter fibers, 20%-40% of PET fibers, 0%-10% of aramid fibers, 0%-5% of glass fibers, 0%-0.1% of a dry strength agent, 0.5%-1.5% of a wet strength agent and 0.1% of a dispersing agent; and the resin layer is thermosetting phenolic resin. The invention further provides a preparation method of the thermosetting engine oil filter paper. The engine oil filter paper disclosed by the invention has the advantages of good strength, temperature resistance and hydrophobicity, small pore size, high air permeability and excellent filtering performance.

The invention relates to a manufacturing method of a fiber-reinforced light fireproof composite material. Carbon fibers, aramid fibers, basalt fibers, glass fibers and silane coupling agent are used as raw materials. According to the manufacturing method, various cutting-off lengths are controlled to be within the range of 100mm +/- 20mm, the silane coupling agent is added for surface processing, the fibers are mixed in proportion after surface processing, and then processes of carding, net laying, needle piercing, rolling, spraying, drying, cooling, coiling and the like are carried out. Through the manufacturing method of the fiber-reinforced light fireproof composite material, solidification of phenolic aldehyde glue is guaranteed, the roller spacing can be adjusted through the processes of rolling and cooling, and a fiber mat suitable for a 3D structure in the fiber-reinforced light fireproof composite material is manufactured.