1612 results about "Processing aid" patented technology

The invention discloses a fame-retardant polyester material with a high glow wire ignition temperature and a preparation method thereof. The flame-retardant polyester material with a high glow wire ignition temperature is composed of the following components in parts by weight: 100 parts of polyester resins, 15-50 parts of bromine-series flame retardant, 5-20 parts of synergistic flame retardant, 0-20 parts of toughening agent, 0-80 parts of carbon forming agent, 5-40 parts of hot oxygen barrier agent, 0-120 parts of fibrous reinforcing agent and 0-10 parts of processing aid. The preparation method of the flame-retardant polyester material with a high glow wire ignition temperature comprises: drying the polyester resins, mixing with other components to obtain a premixed material, then feeding the premixed material into a twin-screw extruder, melting and plasticizing, kneading and mixing, extruding, drawing, cooling, pelletizing, drying and finally packaging. The flame-retardant polyester material with a high glow wire ignition temperature has the advantages of low cost, high glow wire ignition temperature, similar mechanical strength to ordinary flame-retardant polyester and wide application range.

The invention discloses a thin film produced by using starch fiber waste plastic. The new breakthrough and technical innovative points are applied to an environment-friendly plastic synthesized thin film or sheet. The produced environment-friendly plastic synthesized thin film or sheet comprises the following raw materials of 10-60 percent of high polymer waste plastic (regenerated plastic), 10-60 percent of modified starch, 10-50 percent of natural plant fiber, 5-30 percent of inorganic material and 2-15 percent of modifier, compatilizer and processing aid. In the plastic-synthesized thin film or sheet, the thickness of the membrane is 0.01-0.6mm and the thickness of the sheet is 0.6-3mm. The preparation of the thin film has the advantages that the environment-friendly practical thin film or sheet with degradation time with different efficiencies, transmissivity, stress degrees and the like can be obtained by adjusting the mixture ratio of various materials.

The invention relates to a high-temperature resistant thermoplastic polyvinyl chloride cable material, belonging to the technical field of new materials. The cable material consists of the following components in parts by weight: 100 parts of polyvinyl chloride, 30-50 parts of modified plasticizer, 10-20 parts of plasticizer, 20-40 parts of modifier, 2-10 parts of flame retardant, 10-30 parts of inorganic filler, 5-15 parts of stabilizer and 1-5 parts of processing aid. A preparation method of the cable material comprises the following steps: weighing the raw materials according to the components and weight parts of the cable material; uniformly mixing the polyvinyl chloride and adding the modified plasticizer and the common plasticizer; heating and stirring and adding other raw materials; discharging from a high mixing machine and feeding into a twin-screw extruder for extrusion and granulation; and performing air cooling to obtain the final product. The cable material has the advantages that the physical property is good, the applicable temperature range is wide, little pollution is caused, the flame retardance is good, the smoke output in combustion is low, the preparation method is simple, and the cost is low.

The invention belongs to the field of preparation of macromolecular composite materials and particularly relates to an all-weather persistent antistatic master batch capable of being subjected to thermoplastic processing and an antistatic composite material. The antistatic master batch is prepared by forming of a low-dissociation-energy compounding agent, a processing auxiliary agent and thermoplastic macromolecular resin containing polar groups through macromolecular thermoplastic processing equipment at the temperature of 25-300 DEG C; and the mass ratio of the compounding agent to the thermoplastic macromolecular resin is equal to (1:10)-(1:50). The invention also discloses the antistatic composite material which is obtained after the persistent antistatic master batch and a macromolecular base material are formed through the thermoplastic processing equipment. The antistatic composite material has the characteristics that: 1. the antistatic composite material has light color and dyeability; 2. The master batch of the antistatic composite material and the compounding agent are wider in selection range, low in cost and easy to obtain, and the production process is simple, safe and non-hazardous; and 3. the influence of the ambient environment on the antistatic performance of the antistatic composite material is less, and the antistatic performance is persistent.

The present invention is directed to methods and compositions for manufacturing a bone graft substitute. A powder compaction process is utilized to generate a shaped product comprised of a bone material and in some embodiments a processing aid is utilized to facilitate compaction of the bone material and/or for release of the product from the die. In one aspect of the present invention, the manufacturing process comprises a withdrawal press having a shelf die, a lower punch, and an upper punch, wherein at least both the shelf die and lower punch are configured to impart at least part of the shape of the particle upon the material.

The invention discloses tires including innerliners, the innerliners made from at least one polybutene processing aid and at least one elastomer having C₄ to C₇ isoolefin derived units.

The invention relates to a natural fiber composite material and a preparation method of the composite material. The composite material comprises the following components in parts by weight: 100 parts of thermoplastic resin, 5-50 parts of natural fiber, 0-20 parts of impact modifier, 0-30 parts of inorganic filler, 0.1-5 parts of anti-aging agent, and 0-10 parts of processing aid. The preparation method of the composite material comprises the steps of adding the natural fiber into an aqueous solution of a saline coupling agent to soak, then drying the natural fiber, mixing the natural fiber with the other processing aids, feeding the mixed material into a double-screw extruder to subject to the melting extrusion, and granulating to obtain the composite material. Compared with the prior art, the preparation method is simple in process and environment-friendly. More importantly, the problems that the composite material, into which a large amount of natural fiber is added, is poor in material mobility, low in intensity of parts, and poor in appearance quality, are solved. The current situation that the natural fiber composite material cannot adapt to the injection moldings of complex structures is changed.

The invention discloses a fire-retardant insulating polyvinyl chloride material and an electrical sleeve made from the material. The fire-retardant insulating polyvinyl chloride material comprises the following raw materials in part by weight: 100 to 150 parts of polyvinyl chloride, 0.2 to 5 parts of heat stabilizer, 5 to 20 parts of compatibilizer, 20 to 60 parts of fire retardant master batch, 0.3 to 1 part of lubricant, 1 to 3 parts of titanium white powder, 10 to 20 parts of impact modifier, 2 to 4 parts of processing aid and 5 to 20 parts of calcium carbonate. The fire-retardant insulating polyvinyl chloride material provided by the invention has excellent flame retardant property and insulating property; the oxygen index can be over 33.4; the test is up to V-0 level according to the measurement standard of GB/T2048-2008 plastic combustibility; and the resistivity can be up to 1.1*1,011 Omega.m. Therefore, the material can meet the requirement on insulation and fire retardance of a low-voltage wire cable.

The invention provides a foam control formulation in the form of a microemulsion, the formulation comprising: (a) from S to 70% w/w of primary surfactant, this surfactant having an HLB of from 1 to 12 and/or a cloud point of from 20 to 70° C.; (b) from 2 to 40% w/w of water-insoluble organic carrier liquid; and (c) water. Also provided is the use of this formulation to prevent and/or reduce foam in a fluid system, or as a processing aid to control foam production in a fluid system. The formulation may be used in an aqueous fluid system, such as an oilfield.

The invention provides a method and apparatus for reducing the energy needed to process stillage in an ethanol refining operation. The method involves adding to stillage an effective amount of at least one processing aid. The flocculant induces the separation of insoluble material that would otherwise remain suspended in water but which impose a high shear energy cost on the refining processes. This allows for the removal of insoluble material that would otherwise be overlooked but which increase energy costs. This allows for more efficient and effective separation and recovery of insoluble fractions of the concentrated thin stillage that would otherwise be overlooked and lost in the process. Loss of these valued fractions as a result of traditional processing techniques and those requiring extensive additional energy input results in the loss of high value co-products to low revenue process streams. This allows stillage to be processed more rapidly with a lower energy cost and improved co-product recovery economics.

The invention discloses a thermoplastic crack resistant type low smoke zero halogen flame-retardant polyolefin cable sheath material and a preparation method thereof. The cable sheath material comprises the following components in part by weight: 100 parts of polyolefin blend matrix resin, 90 to 150 parts of inorganic flame retardant subjected to surface modification, 10 to 20 parts of high molecular compatilizer, 3 to 20 parts of multifunctional modifier, 1 to 1.5 parts of antioxidant and 1 to 2 parts of processing aid. The preparation method of the cable material comprises the following steps of: blending and extruding polyene resin; performing surface treatment on the inorganic flame retardant; preparing materials; mixing; extruding; granulating and the like. Compared with the prior art, the invention has the advantages that: the cable sheath material has crack resistance, high flame retardancy and high processability, is environmentally friendly, is easy to recycle and the like.

The invention discloses a biodegradable PE-coated paper material which comprises the following components in percentage by weight: 60-90% of polylactic acid, 5-40% degradable toughening resin, 1-10% of elastomer, 0.1-1.0% of processing aid and 0.1-1.0% of anti-aging agent. According to the invention, the compatibility of the polylactic acid and elastic degrading resin can be improved, the adhesion of the material and paper is improved, and the cost of the existing degrading PE-coated paper raw material is greatly reduced.

The invention provides for processes to produce elastomeric compositions, the processes including contacting at least one elastomer with a processing aid, wherein the processing aid includes the reaction product of at least one functionalized polymer having at least one anhydride group contacted with at least one polyamine, wherein the at least one polyamine includes at least one primary amine. The invention also provides for articles such as innerliners for tires produced from the aforementioned elastomeric compositions.

The invention discloses a preparation method for a tea extract, belonging to the technical field of extraction of effective components of tea leaves. The preparation method comprises the following steps: firstly, carrying out low-temperature rapid freezing treatment on high-quality commercial tea leaves; then immediately crushing; then combining a high-voltage pulsed electric field (PEF for short) technology, an ultrasonic treatment technology and a low-temperature enzymolysis technology; and carrying out low-temperature extraction in a whole process. According to the preparation method for the tea extract, the loss of effective components, caused by high-temperature processing, is avoided, and the extraction rate of the effective components of the tea leaves is also improved. The process is simple and low in cost; the introduction amount of extraneous food additives, processing auxiliary agents and chemical substances is reduced; the natural nutritional ingredient and the flavor of the tea leaves are kept to the greatest extent, the low-carbon production is realized and the environment is protected.

The invention provides a silane cross-linked polyethylene insulating material composition, which comprises a material A and a material B, wherein the material A is composed of the following components in parts by weight: 100 parts of polyethylene, 0.01-1 parts of initiator, 0.2-5 parts of silane cross-linking agent, and 0.1-0.5 parts of antioxidant; the material B is composed of the following components in parts by weight: 100 parts of polyethylene, 0.5-5 parts of catalyst, 0.01-5 parts of processing aid, and 0.1-0.5 parts of antioxidant; and the material A is mixed and extruded by a reciprocating single-screw extruder.

The invention discloses masterbatch special for a refrigerator plate and a preparation method thereof. The masterbatch comprises the following compositions by weight portion: 15 to 30 portions of carrier resin, 50 to 75 portions of titanium pigment, 0.1 to 5 portions of coloring agent, 0.5 to 20 portions of dispersing agent, 0.1 to 4 portions of stabilizer and 1 to 10 percent of processing agent. The preparation method comprises: firstly, mixing various compositions according to the proportion; secondly, mixing the various compositions in a high-speed kneader for 15 to 30 minutes or mixing the various compositions in a Banbury mixer for 20 to 60 minutes, and discharging and crushing a mixture, wherein the banburying temperature is between 170 and 230 DEG C; thirdly, fusing, mixing and granulating the mixture by a double-screw extruder, wherein the temperature of various areas of screws is between 190 and 230 DEG C, and the rotating speed of the screws is between 100 and 450 revolutions per minute; and fourthly, drying the mixture to obtain the masterbatch. The plate manufactured by the masterbatch special for the refrigerator plate is difficult to change color and crack, and has high finished product rate during plastic sucking.

The invention relates to a wood/plastic building template, which is characterized by being prepared by taking polyvinyl chloride (PVC) SG700-8, PVC SG1000-5, wood meal, light calcium carbonate, a foam control agent 530, a compound stabilizing agent, a processing aid ACR401, a lubricating modifier LS-303, polyethylene wax, paraffin, stearic acid 1801, high-density polyethylene wax, a foaming agent AC150P azobisformamide, a foaming agent NC azobisformamide, an impact modifier chlorinated polyethylene and 1-1.4% of soybean oil as the raw materials and carrying out high-temperature mixing, cooling and extrusion molding on the raw materials. The wood/plastic building template replaces the plywood and the bamboo templates in the building templates, has the characteristics of environmental protection, zero pollutant discharge, high use frequency, long use period, etc, conforms to the ideals of low-carbon discharge, forest protection and production environment improvement and is an environment-friendly material for building.

The invention relates to the technical field of performance enhancing and functionalization of carbon nanocomposite materials, in particular to a polymer thermal conductive film containing uniformly dispersed and highly oriented graphene and a preparation method thereof. The thermal conductive film material is composed of the following components: a polymer matrix, graphene, second thermal conductive filler, a surface treatment agent, a filler coating agent and a processing aid. A technical route combining "high shear melting dispersion" and "high stretching" is employed to promote the uniformdispersion of graphene nanosheets and other thermal conductive filler in the polymer matrix and the acquisition of high orientation, graphene itself is utilized to construct a long-range continuous and three-dimensional hybrid thermal conductive network structure, thus overcoming the anisotropy of graphene, and constructing a stable and effective thermal conductive network.