38results about How to "Does not affect flame retardancy" patented technology

The invention discloses a preparation method of a dialkylphosphinate metal salt. The preparation method comprises the following steps: a) adding a coupling agent into a water solution of dialkyl phosphinic acid and / or a dialkylphosphinate alkali metal salt to get the water solution of dialkyl phosphinic acid and / or the dialkylphosphinate alkali metal salt containing the coupling agent; and b) adding the coupling agent or not adding the coupling agent into a mixture of a metal compound and water, and further reacting with the water solution of dialkyl phosphinic acid and / or the dialkylphosphinate alkali metal salt containing the coupling agent to generate the dialkylphosphinate metal salt. The dialkylphosphinate metal salt obtained by the preparation method disclosed by the invention has small particle size and good flowability; and furthermore, when the particle size is less than 90 mu m, in particular to 40 mu m, the tap density can still above 600g / L, and the problems that such flame retardants are easy to raise dust during the feeding process and less prone to uniformly mixing with resin can be well solved. The preparation method disclosed by the invention has the advantages of simple process and convenience in operation, and the coupling agent is low in price and easy to obtain; and simultaneously, production equipment is simplified and production cost is reduced.

The invention provides a soft environment-friendly polyolefin cable material prepared from the following raw materials in parts by weight: 20-30 parts of a PE resin powder, 40-50 parts of EVA, 10-15 parts of a POE elastomer, 4-5 parts of ACR resin, 20-30 parts of magnesium hydroxide, 20-30 parts of aluminum hydroxide, 10-20 parts of a talcum powder, 4-5 parts of molybdenum trioxide, 2-3 parts of iron oxide, 8-10 parts of tributyl citrate, 1-2 parts of an antioxidant 1010, 20-30 parts of triethyl O-acetylcitrate, 1-2 parts of pentaerythritol, 1-2 parts of melamine cyanurate, 1-2 parts of polytetrafluoroethylene, 1-2 parts of stearic acid, 1-2 parts of paraffin, and 8-10 parts of a modified filler. The cable material has high softness degree and excellent mechanical properties, and can meet use in communication cables, weak electric cables and other industries having higher demands on the cable softness degree.