1, used to prepare a new type of non-slip material
The new non-slip material has strong wear resistance and anti-slip performance, and the raw materials in the formula are natural to purchase. In the production process, the method is simple and easy to operate, and the manufacturer has a large and convenient material formula. Production materials include: short fiber, water-based glue, zinc oxide, anti-aging agent, stearic acid, photoinitiator, magnesium stearate, potassium stearate, coupling agent and carbon fiber, calculated according to the mass percentage, this new non-slip material Including: 5-10 parts of short cord, 0.5-5 parts of water-based glue, 3-7 pieces of zinc oxide, 1-5 pieces of antioxidant, 2-8 slices of stearic acid, 1-5 parts of photoinitiator, magnesium stearate 10-13 parts, 1-8 parts of potassium stearate, 3-10 parts of coupling agent, and 0.5-10 parts of carbon fiber.
2, used to prepare a graphene-modified glue
Graphene is added to the existing glue to modify the high-temperature resistance of the cement and improve its adhesion. The material for preparing the paste is calculated by parts by weight: 12-30 parts of polyurethane, 15-30 parts of chloroprene rubber, 15-30 parts of polyacrylate, 2-12 parts of graphene, triallyl isocyanuric acid 0.8-1.6 parts of ester, 1-6 pieces of ethylenediamine, 2-10 parts of n-butanol, 2-8 pieces of toluene, 0.8-3 parts of potassium stearate, 2-8 parts of polyvinylpyrrolidone, N- 1-5 parts of phenyl-β-naphthylamine;
The specific steps are as follows:
Level 1, the graphene is added to n-butanol and toluene, ultrasonic dispersion is uniform, to obtain a mixed solution A;
Step 2, adding polyurethane, chloroprene rubber, and polyacrylate into the reactor, the temperature is raised to 80-105 ° C, the reaction is 1-3 hours, and then the mixed solution A and triallyl isocyanurate in the first step The acid ester, potassium stearate, polyvinylpyrrolidone, and N-phenyl-β-naphthylamine are sequentially added to the reactor, the reaction temperature is adjusted to 150-360 ° C, and the reaction is carried out for 2-5 hours to obtain a mixture B;
Step 3, the above reaction is stopped, and the temperature is lowered to 80 ° C, ethylenediamine is added to the reactor, stirred uniformly, and allowed to stand for one day to obtain a graphene-modified glue.
3. Preparation of composite anti-caking agent for use in food-grade potassium chloride
In order to reduce the possibility of high blood pressure, it is now allowed to add part of potassium chloride to replace sodium chloride in the edible salt. However, in the process of storage and transportation of potassium chloride, the moisture contained in the product promotes the dissolution and recrystallization of the powder surface, thereby forming a crystal bridge at the pores of the powder, and the crystals are combined with each other over time to develop. Huge mass. The weakening of fluidity affects its use in table salt. Therefore, in order to prevent agglomeration, it is necessary to add an appropriate amount of anti-caking agent during the production process.
The composite anti-caking agent used in food-grade potassium chloride is non-toxic, harmless, colorless, and odorless. It is composed of D-mannitol, potassium stearate, and calcium dihydrogen phosphate, wherein the specific gravity of D-mannitol, potassium stearate, and dihydrogen phosphate is (1.25-5): (0.1-0.4): 1. The purity of the D-mannitol, potassium stearate, and calcium dihydrogen phosphate is food grade. Compared with the prior art, the invention has the advantages of colorless or slightly white, does not change the whiteness of potassium chloride, does not contain cyanide, is non-toxic, and harmless.
4, The preparation of high-molecular polyethylene polypropylene waterproof membrane
Polyethylene polypropylene is a new material used in recent years. Polypropylene is made of polypropylene non-woven fabric and polyethylene as the primary raw material. It is made of anti-aging agents and is compounded by high-tech, new technology, and new technology. The polymer polyethylene polypropylene composite waterproof roll material with an integrated layer has significant friction coefficient, excellent stability, high mechanical strength, small linear expansion coefficient, wide temperature adaptation range, excellent chemical resistance, weather resistance, and flexibility. The characteristic is an ideal green environmental protection product in the new century. The preparation method of the high-molecular polyethylene polypropylene waterproofing membrane comprises the following steps:
Step 1: Weigh the raw materials according to the following parts by weight: 80-130 parts of polyethylene resin, 10-20 parts of talcum powder, 5-10 parts of silica fume, 5-10 parts of glass beads, and 8-16 parts of potassium stearate. 8-18 pieces of carboxylated styrene-butadiene latex, 10-20 parts of the anti-aging agent;
Step 2: Put talcum powder, silica fume, potassium stearate and carboxylated styrene-butadiene latex into a high-speed mixer, raise the temperature to 70-80 ° C, stir at high speed for 8-18 min, and then increase the heat to 95-100 ° C. After that, a polyethylene resin and glass microbeads are added, and the mixture is stirred at high speed for 10-20 minutes to obtain a combination;
Step 3: Put the mixture into the feeding area, extrude and form the polypropylene sheet and the plastic sheet completely by the three-roller machine, pass the guide roller to the tractor, cut the edge, and enter the coiler to obtain the product.
Compared with the prior art, the beneficial effects of the invention are: synergistic effect by polyethylene resin, talc, silica fume, glass microbeads, potassium stearate, carboxylated styrene-butadiene latex, anti-aging agent, and subsequent preparation steps, especially When the high-speed mixing is carried out, the order of inputting the raw materials is particularly important. In combination with the sequence of the present invention, the performance of the prepared high-molecular polyethylene polypropylene waterproofing membrane is superior to that of the conventional high-performance waterproofing membrane.
