CN-122011535-A - High-load type transmission adhesive tape primer and preparation method thereof

Abstract

The invention relates to the field of transmission belt primer, in particular to high-load transmission belt primer and a preparation method thereof. The anti-tear adhesive comprises, by weight, 100 parts of neoprene, 10-15 parts of polyvinyl alcohol fibers, 5-8 parts of reinforcing fibers, 30-50 parts of composite fillers, 2.5-4.0 parts of silane coupling agents, 4-9 parts of metal oxides, 7-10 parts of functional additives and 5-8 parts of anti-tear resins. The invention realizes balanced promotion of the adhesive tape primer strength, wear resistance and fatigue resistance through the collaborative design and controllable process of the fiber-filler-auxiliary agent system, and provides a reliable material solution for a high-load transmission system.

Inventors

• SUN WENWEN
• ZHUANG SHIPING
• SHEN DONGCHAO

Assignees

• 安徽中良智能传动科技有限公司

Dates

Publication Date

20260512

Application Date

20260313

Claims (10)

1. 1. The high-load type transmission adhesive tape primer is characterized by comprising, by weight, 100 parts of neoprene, 10-15 parts of polyvinyl alcohol fibers, 5-8 parts of reinforcing fibers, 30-50 parts of composite filler, 2.5-4.0 parts of silane coupling agent, 4-9 parts of metal oxide, 7-10 parts of functional auxiliary agents and 5-8 parts of tear-resistant resin.
2. 2. The high load type transmission adhesive tape primer according to claim 1, wherein the polyvinyl alcohol fiber is MM-1 type and has a diameter of 2-3MM.
3. 3. The high load transmission tape primer according to claim 1, wherein the reinforcing fiber is at least one selected from nylon fiber and aramid fiber, and has an elastic modulus of 100-200GPa.
4. 4. The high-load type transmission adhesive tape primer according to claim 1, wherein the composite filler is formed by mixing EDS type white carbon black and N330 type carbon black according to a weight ratio of 1:2.
5. 5. The high load type transmission tape primer according to claim 1, wherein the silane coupling agent is SI69 type.
6. 6. The high-load type transmission adhesive tape primer according to claim 1, wherein the metal oxide is formed by mixing magnesium oxide and zinc oxide in a weight ratio of 1:1.5.
7. 7. The high-load transmission adhesive tape primer according to claim 1, wherein each part of energy auxiliary agent comprises 3 parts of antioxidant 1010 and 4 parts of antioxidant RD.
8. 8. The high load transmission tape primer of claim 1, wherein the tear resistant resin is of the type E5051.
9. 9. The method for preparing the primer for the high-load transmission adhesive tape according to claim 1, which is characterized by comprising the following steps: S1, preparing banburying masterbatch, namely adding 1/3 weight part of chloroprene rubber, all polyvinyl alcohol fibers, reinforcing fibers and tear-resistant resin into an internal mixer, banburying for 40-60 seconds at the temperature of 60-100 ℃ and the rotating speed of 30r/min, and discharging to obtain the banburying masterbatch; S2, preparing a premix, namely placing the metal oxide and the functional auxiliary agent into a mixer, and stirring for 20-30 minutes at 80-100 ℃ to obtain a mixture A, mixing the silane coupling agent and the composite filler, and stirring for 15-20 minutes at room temperature to obtain a mixture B; S3, secondary banburying, namely adding the rest chloroprene rubber, banburying masterbatch and mixture B into an internal mixer, carrying out primary banburying for 30-50 seconds at 80-115 ℃ and the rotating speed of 30-50r/min, then adding mixture A, and continuing secondary banburying for 40-60 seconds; S4, open mixing and cooling, namely discharging the sizing material subjected to secondary banburying into an open mixing machine, carrying out banburying for 40-80 seconds at 50-80 ℃, and linearly cooling to room temperature at a speed of 1-10 ℃ per minute after discharging to obtain the high-load type driving belt primer.
10. 10. The high load transmission tape primer of claim 1, wherein the product is applied in a high load transmission scenario.

Description

High-load type transmission adhesive tape primer and preparation method thereof Technical Field The invention relates to the field of transmission belt primer, in particular to high-load transmission belt primer and a preparation method thereof. Background The transmission adhesive tape is used as a core component for mechanical power transmission and material conveying, and the reliability, efficiency and service life of a transmission system are directly determined by the performance of the transmission adhesive tape. The primer of the adhesive tape is used as a key structure between the bearing layer and the covering layer, and not only needs to have excellent elasticity and adhesiveness, but also needs to bear main tensile stress, resist fatigue damage caused by frequent flexing, and bear friction and wear from pulleys or materials. Under severe working conditions of high load and high impact such as mining, port logistics, heavy engineering machinery and the like, extreme requirements are put on the mechanical strength, wear resistance and fatigue resistance of the primer. Therefore, the development of the transmission adhesive tape primer which can simultaneously meet the requirements of high strength, high wear resistance and long fatigue life has important engineering application values for improving the operation safety of equipment, reducing the maintenance cost and prolonging the replacement period. However, the conventional formulation commonly used for the primer of the driving belt in the prior art focuses on optimization of single performance, and is often difficult to achieve balanced improvement on multiple key indexes. For example, simply increasing the amount of short fibers or fillers can increase the modulus and hardness to a certain extent, but the toughness of the rubber is easy to decrease, the internal stress is easy to increase, early cracks are easy to be initiated under dynamic flexing, poor interface bonding between the fibers and the rubber matrix can cause low stress transfer efficiency and limit the reinforcing effect, and the conventional mixing process can also cause fiber damage or uneven dispersion of the fillers, so that the uniformity and stability of the performance of the final product are affected. In addition, the comprehensive performance level of the existing products is insufficient when facing the increasingly high-power and high-torque transmission demands, and the problems of abnormal elongation or fracture caused by insufficient strength, early failure caused by over-fast wear, overall service life shortening caused by fatigue cracking and the like exist. Therefore, there is a need for a high performance transmission tape primer that is systematically innovative from formulation system to preparation process, and that can synergistically enhance mechanical strength, wear resistance, and fatigue life. Disclosure of Invention Aiming at the problems in the background art, the high-load type transmission adhesive tape primer and the preparation method thereof are provided, the balanced promotion of the adhesive tape primer strength, wear resistance and fatigue resistance is realized through the collaborative design and the controllable process of a fiber-filler-auxiliary agent system, and a reliable material solution is provided for a high-load transmission system. The invention provides a high-load type transmission adhesive tape primer, which comprises, by weight, 100 parts of neoprene, 10-15 parts of polyvinyl alcohol fibers, 5-8 parts of reinforcing fibers, 30-50 parts of composite filler, 2.5-4.0 parts of silane coupling agent, 4-9 parts of metal oxide, 7-10 parts of functional auxiliary agents and 5-8 parts of tear-resistant resin. Preferably, the polyvinyl alcohol fiber is of the MM-1 type and has a diameter of 2-3MM. Preferably, the reinforcing fiber is at least one selected from nylon fiber and aramid fiber, and has elastic modulus of 100-200GPa Preferably, the composite filler is formed by mixing EDS type white carbon black and N330 type carbon black according to a weight ratio of 1:2. Preferably, the silane coupling agent is of the SI69 type. Preferably, the metal oxide is formed by mixing magnesium oxide and zinc oxide according to a weight ratio of 1:1.5. Preferably, each part of energy auxiliary agent comprises 3 parts of antioxidant 1010 and 4 parts of antioxidant RD. Preferably, the tear resistant resin is type E5051. The invention provides a preparation method of the high-load type transmission adhesive tape primer, which comprises the following steps: S1, preparing banburying masterbatch, namely adding 1/3 weight part of chloroprene rubber, all polyvinyl alcohol fibers, reinforcing fibers and tear-resistant resin into an internal mixer, banburying for 40-60 seconds at the temperature of 60-100 ℃ and the rotating speed of 30r/min, and discharging to obtain the banburying masterbatch; S2, preparing a premix, namely placing the metal oxide and the