The invention discloses safe and sulfur-free firework bursting powder and propelling powder and a preparing method thereof, and relates to the technical field of fireworks. The firework bursting powder is prepared from, by weight, 15-35 parts of carbon powder, 5-60 parts of potassium perchlorate and 15-70 parts of potassium nitrate. The firework propelling powder is prepared from, by weight,15-35parts of carbon powder, 5-60 parts of potassium perchlorate, 15-70 parts of potassium nitrate, 5-10 parts of adhesive and a proper amount of solvent. The firework bursting powder and propelling powderdo not contain sulfur, metal, benzene or the like, have no toxicity, reduce the air pollution, generate less smoke, have zero percussion sensitivity and friction sensitivity, guarantee safety and environmental protection, have a low moisture absorption rate and stable performance, reduce the ignition point properly, have flammability, high safety performance and propelling performance, do not easily cause barrel blasting, and reduce the production cost; the preparing method of the sulfur-free firework bursting powder and propelling powder is simple and safe.

Safe and sulfur-free firework bursting powder and propelling powder and preparing method thereof

The invention relates to an antistatic smokeless sulfur-free firecracker nitrate agent and a preparation method thereof, belonging to the field of environment-friendly pyrotechnic compositions. The firecracker nitrate agent comprises, desensitized hexogen, nitrified bamboo cellulose, modified ammonium dinitramide, magnesium stearate, 1,3-dimethyl-1,3-diphenyl urea, dicyandiamide, amino silicon oiland an antistatic agent. According to the invention, desensitized hexogen is used as a main component, and modified ammonium dinitramide is used as an oxidant, so an oxygen content is sufficient, andcombustion effect is ensured; the nitrified bamboo cellulose, 1,3-dimethyl-1,3-diphenyl urea, magnesium stearate and dicyandiamide are adopted, and the antistatic agent and amino silicone oil are added, so the mechanical properties, stability and antistatic capacity of the firecracker nitrate agent can be remarkably improved, and the safety and reliability of the firecracker nitrate agent in theprocesses of production, storage and use are guaranteed; meanwhile, the firecracker nitrate agent does not contain a sulfur element or any metal powder, so the preparation of the smokeless sulfur-freefirecracker nitrate agent can be truly realized.

Antistatic smokeless sulfur-free firecracker nitrate agent and preparation method thereof

The invention relates to a smokeless sulfur-free firecracker nitrate agent and a preparation method thereof, and belongs to the field of environment-friendly pyrotechnic compositions. The preparationmethod comprises the following steps of: putting nitrified bamboo cellulose into ethyl acetate, stirring the materials until the nitrified bamboo cellulose is completely swelled, and sequentially adding a component A and zinc stearate in a stirring state to prepare nitrified bamboo cellulose sol; adding the nitrified bamboo cellulose sol into the nitrified bamboo cellulose for mechanical kneading,and adding ethyl acetate to obtain a micelle M; adding passivated hexogen into the micelle M, and gradually adding ethyl acetate to obtain a micelle N; granulating the micelle N by using a copper sieve, airing the micelle N in a shade place for a plurality of hours, transferring the micelle N to a 50-80 DEG C environment to dry the micelle N to obtain a smokeless sulfur-free firecracker nitrate agent crude product; lightly pressing and crushing the smokeless and sulfur-free firecracker nitrate agent crude product, and sieving the crushed product with a copper sieve to obtain the smokeless andsulfur-free firecracker nitrate agent with uniform particles. The preparation method of the smokeless sulfur-free firecracker nitrate agent provided by the invention is low in cost, green and environment-friendly, and can effectively solve the problem of flue gas pollution.

Safe smokeless sulfur-free firecracker nitrate reagent and preparation method thereof

The invention relates to a waterproof formula of a smokeless sulfur-free firecracker saltpetre agent and a preparation method thereof, and belongs to the field of environment-friendly pyrotechnic compositions. The formula comprises passivated hexogen, nitrified bamboo cellulose, dihydroxy glyoxime, polyester fibers, ethyl cellulose, glyceryl stearate, D-p-nitrophenylglycine and dicyandiamide. Passivated hexogen is adopted as a main component, so that safety and reliability are achieved, no metal powder or sulfur element component is contained, and preparation of the smokeless and sulfur-free firecracker saltpetre agent can be truly achieved. Polyester fibers are adopted, and glyceryl stearate is introduced, so that the waterproof capacity of the firecracker saltpetre agent can be remarkably improved, the antistatic capacity of the firecracker saltpetre agent is improved, and the waterproof performance and the safety performance of the firecracker saltpetre agent in the production, storage and use processes are guaranteed. The preparation method has the advantages of simple process, easily available raw materials, no discharge of three wastes in the production process, suitability for small factory operation, suitability for large-scale industrial production, and remarkable economic benefit and social benefit.

Waterproof formula of smokeless sulfur-free firecracker saltpetre agent and preparation method thereof

The invention relates to stabilization treatment of a high-explosive-sound smokeless sulfur-free firecracker nitrate preparation and a preparation method, and belongs to the field of environment-friendly pyrotechnic compositions. The high-explosive-sound smokeless sulfur-free firecracker nitrate preparation is prepared from the following components: passivated hexogen, nitrobamboo cellulose, nitroguanidine, modified nano aluminum powder, dimethyl diphenyl urea, graphene oxide and dicyandiamide. According to the invention, passivated hexogen, nitrobamboo cellulose, nitroguanidine and the modified nano aluminum powder are adopted, so that the excellent setting-off effect and safety performance of the high-explosive-sound smokeless sulfur-free firecracker nitrate preparation are fully ensured; the metal powder is modified nano aluminum powder, so that the smokeless and sulfur-free environment-friendly requirements are met, and the pollution of the current firecracker nitrate medicament tothe environment and the harm to a human body are greatly reduced; the preparation method is simple, does not discharge three wastes in the production process, is suitable for factory operation, is also suitable for industrial large-scale production of an assembly line, and has remarkable economic benefits and social benefits.

Stabilization treatment of high-explosive-sound smokeless sulfur-free firecracker nitrate preparation and preparation method

The invention provides a sulfur-free shoot charge for fireworks and a preparation method thereof. The sulfur-free shoot charge for fireworks comprises potassium perchlorate, potassium hydrogen terephthalate, potassium nitrate, charcoal and phenolic resin in a mass ratio of (50-70) to (20-40) to (4-6) to (3-5) to (0.5-1.5), wherein the grain sizes of the raw materials are 200-300 mesh. The invention also provides the preparation method of the sulfur-free shoot charge for fireworks. Experiments prove that through determination under certain conditions, the product of the sulfur-free shoot charge for fireworks has friction sensitivity of 0-18%, impact sensitivity of 0, ignition temperature of 423 DEG C, moisture absorption ratio of 0.87% and good 48-hour thermal stability at 75 DEG C.

Wang Daojin

Papers

Sulfur-free shoot charge for fireworks and preparation method thereof