6 results about "Pentachlorobenzene" patented technology

The invention belongs to the technical field of biology, and particularly relates to a pentachloronitrobenzene rapid detection method based on enzyme catalysis reaction, which comprises the following steps: converting pentachloronitrobenzene into pentachlorophenol and nitrate radicals through an enzyme system consisting of iron thioflavin protein reductase, ferredoxin and nitrobenzene dioxygenase; and then nitrate radicals are specifically detected by a Griess reagent method so as to indirectly reflect quintozene. The detection method disclosed by the invention is good in specificity, short in detection time and remarkable in visual detection effect, and can be used for on-site rapid detection of quintozene.

The invention relates to the field of rubber materials, and particularly discloses a golf ball inner core material, a preparation method thereof and a high-elasticity golf ball. The invention discloses an inner core material of a golf ball. The inner core material comprises the following raw materials in parts by weight: 100 parts of butadiene rubber, 25-30 parts of zinc acrylate, 0.5-1.5 parts of a vulcanizing agent, 4-8 parts of zinc stearate, 0.4-0.8 part of pentachlorothiophenol, 4-8 parts of zinc oxide and 15-20 parts of filler. The golf ball inner core material has the advantages of being good in rebound resilience and good in hitting resistance, the service life can be prolonged, and a better ball hitting feeling can be brought.

The present application relates to the determination of pentachlorothiophenol in rubber, comprising the following steps: (1) pyrolysis gas chromatography mass spectrometry test standard solution; (2) draw standard curve; (3) sample test; (4) sample qualitative judgment; (5) sample quantitative calculation result. The present application optimizes the quantitative method of pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) for detecting the content of pentachlorothiophenol in rubber products, and quickly confirms the content of pentachlorothiophenol in rubber products.

The application discloses a 3D printing consumable containing pentachlorophenol-silane synergistically modified polylactic acid and a preparation method thereof. The 3D printing consumable containing pentachlorophenol-silane synergistically modified polylactic acid is characterized by comprising TPU, a compatilizer, a dispersing agent, a pigment and pentachlorophenol-silane synergistically modified polylactic acid. The preparation method of the pentachlorophenol-silane synergistically modified polylactic acid comprises the following steps: esterification reaction between carboxyl groups of polylactic acid and hydroxyl groups of pentachlorophenol to obtain pentachlorophenol grafted polylactic acid; and esterification reaction between hydroxyl groups of polylactic acid and carboxyl groups of a silane coupling agent to obtain pentachlorophenol-silane synergistically modified polylactic acid. The application can improve the sterilization performance.

The present application relates to the rubber processing technical field, provide a kind of environment-friendly double active plasticizer composition and its rubber plasticing method.The composition is with 2,2'-dibenzoylaminodiphenyl disulfide as main active component, with small dose of pentachlorobenzene thiophenol, and adopts the double inorganic carrier formed by pottery and calcium carbonate, and phthalocyanine iron metal complex is loaded on the surface of carrier.Under the premise that zinc pentachlorothiophenol, zinc salt of fatty acid and other heavy metal salt activators are not contained, and the chlorine element content is controlled in the limited range, the plasticizer composition of the present application is used for the plasticing of raw rubber such as natural rubber, and the Mooney viscosity can be reduced faster at medium plasticing temperature, the plasticing time to reach target Mooney is significantly shortened, the unit energy consumption and motor load are reduced, and the equipment operation stability is improved.Comparative test proves that the composition has good formula freedom, has high-efficiency plasticing and environmental friendliness, and is suitable for tire and various rubber product production.

The application provides a method for determining pentachloroanisole in wooden materials by QuEChERS-gas chromatography-tandem mass spectrometry. Specifically, the method comprises the following steps: after the wooden food contact material is crushed, water and zirconium dioxide balls are added for ultrasonic extraction, then acetonitrile and a salting-out reagent composed of magnesium sulfate and sodium chloride are added, and after oscillation and centrifugation, an extraction solution is obtained; the extraction solution is purified by using a dispersive solid phase extraction method, wherein the dispersive adsorbent at least comprises graphitized carbon black and ethylenediamine-N-propyl silylated silica gel; and detection is performed by using a gas chromatography-tandem mass spectrometer in a multiple reaction monitoring mode. The method is simple in operation, high in sensitivity and strong in specificity, and is suitable for determining pentachloroanisole in wooden food contact materials.