Lead-acid storage battery anti-aging plastic shell material

Abstract

The invention discloses a lead-acid storage battery anti-aging plastic shell material, which is prepared from the following components by weight: 40-50 parts of an ABS resin, 20-30 parts of a PVC resin, 5-10 parts of surface modified bamboo fiber, 5-10 parts of modified aluminum hydroxide, 5-10 parts of chlorinated Polyethylene, 1-3 parts of a lubricant, 3-5 parts of modified zeolite powder, 0.5-1 part of an antioxidant AT-10, 0.1-0.5 part of an antioxidant 1078, and 0.5-1 part of dibutyltin dilaurate. According to the present invention, the lead-acid storage battery anti-aging plastic shell material has advantages of reasonable and scientific formula, environmental protection, low production cost, excellent flame retardant performance, excellent mechanical property, and excellent weather resistance.

Description

technical field [0001] The invention relates to a molded case of a lead-acid battery, in particular to an anti-aging plastic case material of a lead-acid battery. Background technique [0002] After more than 150 years of development, lead-acid batteries have mature technology, low cost, and excellent performance. They are widely used in many economic fields such as transportation, communication, electric power, military, navigation, and aviation, and have become an indispensable and important chemical power source. As one of the three major parts of lead-acid batteries, the battery case is used to carry all the constituent materials such as the plate, separator, electrolyte, etc., and requires good acid and alkali resistance, high strength and good processability. ABS resin is the most commonly used raw material for battery shells. It is cheap, beautiful, and strong. However, commonly used ABS resins have poor weather resistance and are prone to aging. During storage, proce...

AI Technical Summary

Problems solved by technology

The present invention optimizes and improves the formula of the molded case material, adds quantitative PVC resin to the ABS resin, through the synergistic effect of the two materials, and supplemented with antioxidant AT-10, antioxidant 1078 and dibutyltin dilaurate The heat-resistant oxygen stabilization system greatly improves the weather resistance of the plastic case, effectively solving the problems of poor weather resistance, aging, brittleness and yellowing of the case, and at the same time improving the mechanical properties of the material. Dibutyltin dilaurate In addition to being used as a light and heat stabilizer, the ester can make the material have excellent light stability and transparency, and its other function is to increase the melt viscosity of the entire material system, that is, to improve the processing fluidity and solve the problem caused by adding surface-modified bamboo. After fiber, aluminum hydroxide and modified zeolite powder, the processing fluidity of the whole material is reduced, which is not conducive to the molding of the molded case; aluminum hydroxide is a cheap flame retardant, which is widely used in flame retardant materials, but its demand is relatively high. A large amount of addition (usually more than 20%) can have a flame retardant effect. At the same time, it has poor compatibility with ABS resin and PVC resin, and has poor dispersion in materials. In the present invention, modified aluminum hydroxide is used as a flame retardant. Excellent flammability, good thermal stability, good dispersibility, and improved interfacial bonding with the material system; using modified zeolite powder as a flame retardant accelerator, modified zeolite powder can selectively adsorb and penetrate particles, It can effectively improve the flame retardant efficiency of modified aluminum hydroxide, and at the same time, modified zeolite powder can be used as a carrier to absorb antioxidant AT-10 and antioxidant 1078, so that antioxidant AT-10 and antioxidant 1078 can be evenly dispersed in the material Among them, and make it work for a long time, using modified aluminum hydroxide and modified zeolite powder as the flame retardant system can greatly reduce the amount of modified aluminum hydroxide, and the flame retardant effect is good; the surface modified bamboo fiber and resin There is good compatibility between the matrix, which can greatly improve the mechanical properties and heat resistance of the resin matrix