Search

CN-122011668-A - Anti-wet-skid resin and preparation method and application thereof

CN122011668ACN 122011668 ACN122011668 ACN 122011668ACN-122011668-A

Abstract

The application discloses an anti-wet-skid resin, a preparation method and application thereof, and belongs to the field of rubber additives. The wet skid resistant resin is prepared from the following raw materials, by weight, 30-50 parts of hydrogenated C5 petroleum resin, 25-38 parts of hydrogenated C9 petroleum resin, 6-10.5 parts of modified C5 petroleum resin, and graft-polymerizing the modified C5 petroleum resin with p-tert-butylstyrene. The preparation method of the wet skid resistant resin comprises the following steps of graft polymerizing C5 petroleum resin and p-tert-butylstyrene to obtain modified C5 petroleum resin, and mixing the modified C5 petroleum resin with hydrogenated C5 petroleum resin and hydrogenated C9 petroleum resin to obtain the wet skid resistant resin. The application has the advantages of improving the wet skid resistance and the ice gripping force of the tire.

Inventors

  • LI YAO

Assignees

  • 肇庆市联力化工有限公司

Dates

Publication Date
20260512
Application Date
20260209

Claims (9)

  1. 1. The wet skid resistant resin is characterized by being prepared from the following raw materials in parts by weight: 30-50 parts of hydrogenated C5 petroleum resin; 25-38 parts of hydrogenated C9 petroleum resin; 6-10.5 parts of modified C5 petroleum resin; The modified C5 petroleum resin is formed by graft polymerization of C5 petroleum resin and p-tert-butylstyrene.
  2. 2. The wet skid resistant resin as set forth in claim 1, wherein the mass ratio of the C5 petroleum resin to the p-tert-butylstyrene in the raw material for producing the modified C5 petroleum resin is 1 (0.14 to 0.20).
  3. 3. The wet skid resistant resin according to claim 2, wherein said modified C5 petroleum resin is prepared from a raw material further comprising a Lewis acid catalyst.
  4. 4. The wet skid resistant resin as set forth in claim 1, wherein the C5 petroleum resin comprises 25 to 28% by weight of piperylene and 7 to 10% by weight of isoprene.
  5. 5. The wet skid resistant resin as set forth in claim 1, wherein the molecular weight of the C5 petroleum resin is 1800 to 2000.
  6. 6. A method for preparing a wet skid resistant resin according to any one of claims 1 to 5, comprising the steps of: Dispersing C5 petroleum resin and part of p-tert-butylstyrene in a first solvent to obtain a first reactant mixed solution; dispersing a Lewis acid catalyst in a second solvent to obtain a catalyst mixed solution; dispersing the rest of the p-tertiary butyl styrene in a third solvent to obtain a second reactant mixed solution; dropwise adding the catalyst mixed solution into the first reactant mixed solution at the temperature of 0-20 ℃, dropwise adding the second reactant mixed solution after the completion of dropwise adding the catalyst mixed solution, continuing the reaction, terminating the reaction, filtering, and distilling under reduced pressure to obtain the modified C5 petroleum resin; Mixing the modified C5 petroleum resin with the hydrogenated C5 petroleum resin and the hydrogenated C9 petroleum resin to obtain the wet skid resistant resin.
  7. 7. The method for producing a wet skid resistant resin as set forth in claim 6, wherein in the step of obtaining the reactant mixture, the amount of p-t-butylstyrene added is 80 to 90% by weight based on the total amount of p-t-butylstyrene, and in the step of obtaining the modified C5 petroleum resin, the amount of p-t-butylstyrene added is 10 to 20% by weight based on the total amount of p-t-butylstyrene.
  8. 8. The method of claim 6, wherein the temperature of the catalyst mixture is controlled to be 0-10 ℃ in the step of obtaining the modified C5 petroleum resin, and the temperature of the reaction is controlled to be 12-20 ℃ after the third reactant mixture is added dropwise.
  9. 9. Use of a wet skid resistant resin according to any one of claims 1 to 5 in rubber articles.

Description

Anti-wet-skid resin and preparation method and application thereof Technical Field The application relates to the field of rubber additives, in particular to an anti-wet-skid resin, a preparation method and application thereof. Background With the continuous development of the transportation industry, the performance requirements of rubber products such as tires are increasingly improved, wherein the wet skid resistance is one of the key factors for ensuring the driving safety. The good wet skid resistance can effectively reduce the skid phenomenon of the vehicle on a wet road surface and ensure the driving safety. In order to improve the wet skid resistance of the rubber material, a wet skid resistant resin is usually added into the tire rubber formula, wherein the wet skid resistant resin mainly comprises terpene resin, petroleum resin and styrene resin, and the petroleum resin mainly comprises C5 petroleum resin and C9 petroleum resin. The C5 petroleum resin and the C9 petroleum resin have tackifying effect, can effectively improve the mechanical property and dynamic property of sizing materials, and are prepared into tire rubber materials with proper wet skid resistance, and the C5 petroleum resin and the C9 petroleum resin are widely applied because monomer raw materials of the C5 petroleum resin and the C9 petroleum resin can be obtained from byproducts of petroleum industry. However, when C5 petroleum resin and C9 petroleum resin are used as the anti-wet skid resin, although the grip of the tire on the wet skid ground can be effectively improved, the grip of the tire on the ice surface is reduced in cold winter areas, and the use scene is limited. Disclosure of Invention In order to improve the wet skid resistance and the ice surface gripping force of the tire, the application provides the wet skid resistance resin and a preparation method and application thereof. In a first aspect, the present application provides a wet skid resistant resin, which adopts the following technical scheme: The wet skid resistant resin is prepared from the following raw materials in parts by weight: 30-50 parts of hydrogenated C5 petroleum resin; 25-38 parts of hydrogenated C9 petroleum resin; 6-10.5 parts of modified C5 petroleum resin; The modified C5 petroleum resin is formed by graft polymerization of C5 petroleum resin and p-tert-butylstyrene. According to the technical scheme, the hydrogenated C5 petroleum resin and the hydrogenated C9 petroleum resin are saturated by hydrogenation means, the thermal stability and weather resistance of the petroleum resin are improved, the para-tertiary butyl styrene is grafted and polymerized on the C5 petroleum resin, the C5 petroleum resin refers to the non-hydrogenated C5 petroleum resin, unsaturated carbon-carbon double bonds in the C5 petroleum resin are grafted and polymerized with the para-tertiary butyl styrene, the fluidity of the C5 petroleum resin is utilized to promote the para-tertiary butyl styrene to disperse in a resin structure system formed by the hydrogenated C5 petroleum resin and the hydrogenated C9 petroleum resin, the rigidity and toughness of the para-tertiary butyl styrene are adjusted to a moderate degree, tertiary butyl embedded with the petroleum resin and a rubber segment is provided after the para-tertiary butyl styrene is grafted, the low-temperature toughness of rubber is improved, and the micro uneven structure on an ice surface is facilitated, so that the anti-wet-skid effect is improved, and meanwhile, the grip on the ice surface is improved. Optionally, in the preparation raw materials of the modified C5 petroleum resin, the mass ratio of the C5 petroleum resin to the p-tert-butylstyrene is 1 (0.14-0.20). By adopting the technical scheme, the mass ratio of the C5 petroleum resin to the p-tert-butylstyrene can control the degree of the benzene ring structure connected into the C5 petroleum resin, so that the modified C5 petroleum resin has proper rigidity while retaining toughness, and the compatibility with the hydrogenated C5 petroleum resin and the hydrogenated C9 petroleum resin is obtained, thereby playing the role of improving the wet skid resistance of rubber. Optionally, the preparation raw material of the modified C5 petroleum resin further comprises a Lewis acid catalyst. By adopting the technical scheme, the grafting polymerization of the p-tert-butylstyrene is realized by adopting a cationic polymerization mode, ordered grafting of the p-tert-butylstyrene is facilitated, the polymerization degree is controlled, the modified C5 petroleum resin with proper molecular weight is obtained, the fluidity of the modified C5 petroleum resin is maintained, the wet skid resistant resin is effectively embedded into the soft section of the tire rubber, and the wet skid resistant capability is improved. Optionally, the C5 petroleum resin contains 25-28 wt% of piperylene and 7-10 wt% of isoprene. By adopting the technical scheme, the isoprene and the