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Acid modification C5 petroleum resin and molecular weight controllable preparation method thereof

A technology of petroleum resin and acid modification, which is applied in the field of acid-modified C5 petroleum resin and its molecular weight controllable preparation, which can solve the problems of difficult to meet the use requirements and narrow molecular weight adjustment range, and achieve easy operation, simple method and control range wide effect

Active Publication Date: 2018-10-12
安徽同心新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the Chinese patent application No. 2009100226153 uses mixed monoolefins as molecular weight regulators to regulate the molecular weight of polydicyclopentadiene petroleum resins, but uses monoolefin molecular weight regulators to adjust the molecular weight range of the obtained petroleum resin products. Relatively narrow, it is difficult to meet the needs of various fields

Method used

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Examples

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preparation example Construction

[0030] The molecular weight controllable preparation method of a kind of acid-modified C5 petroleum resin of the present invention, take decyclized C5 compound, piperylene, recovered piperylene, monoolefin, styrene and derivatives of styrene as main raw materials , Prepare the base resin by polymerization reaction, and then use maleic anhydride as the graft toughening agent to carry out graft treatment to obtain the acid-modified C5 petroleum resin. The concrete steps of acid modified C5 petroleum resin in the present invention are:

[0031] 1) Accurately weigh each reaction raw material according to a certain ratio, and dissolve it in solvent oil; wherein decyclized C5 compound, piperylene, reclaimed piperylene, monoolefin, styrene and styrene derivative The mass ratio of solvent to solvent oil (1-150): (1-60): (1-150): (1-80): (0-60): (100-200).

[0032]In the prior art, the molecular weight of the petroleum resin product is usually adjusted by adjusting the process paramet...

Embodiment 1

[0037] Weigh respectively 130g of decyclized C5 compound, 60g of piperylene, 90g of recovered piperylene, 20g of monoolefin, and 50g of styrene and dissolve them in 150g of solvent oil; then add the reaction materials into the cold polymerization reactor And stir evenly, control the reaction temperature of polymerization at 60°C, and control the reaction time at 2 hours. After the reaction is completed, the polymerized reaction product is stripped to recover solvent oil to obtain the base resin; finally, the base resin is grafted with maleic anhydride Toughening agent, the final product acid-modified petroleum resin is obtained by melting grafting and washing with water. The measured molecular weight Mz of the base resin is 6500, and the softening point is 90°C. The molecular weight Mz of the final product is 9100, and the softening point is 100°C.

Embodiment 2

[0039] Weigh respectively 150g of decyclized C5 compound, 60g of piperylene, 60g of recovered piperylene, 30g of monoolefin, and 30g of styrene and dissolve them in 170g of solvent oil; then add the reaction materials into the cold polymerization reactor And stir evenly, control the reaction temperature of polymerization at 70°C, and control the reaction time at 2 hours. After the reaction is completed, the polymerized reaction product is stripped to recover solvent oil to obtain the base resin; finally, the base resin is grafted with maleic anhydride Toughening agent, the final product acid-modified petroleum resin is obtained by melting grafting and washing with water. The measured molecular weight Mz of the base resin is 9800, and the softening point is 99° C., and the molecular weight Mz of the final product is 14,600, and the softening point is 110° C.

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Abstract

The invention discloses an acid modification C5 petroleum resin and a molecular weight controllable preparation. The preparation method comprises the following steps that a decyclization C5 compound,piperylene, recycled piperylene, monoolefine, styrene, styrene derivatives thereof and other substances are accurately weighed according to the certain proportional relation and dissolved into solventnaphtha, then, the mixture is added into a cold polymerization reaction kettle and stirred to be uniform, the polymerization reaction temperature is controlled to be 45-80 DEG C, the reaction time iscontrolled within 0.5-4 h, and basic resin is prepared after polymerization; finally, a final acid modification petroleum resin product is obtained through the grafting technology performed on the basic resin. By blending the contents of material components in reaction materials, the molecular weight of the basic resin is regulated, then, on the basis of the grafting technology, accordingly, themolecular weight of petroleum resin can be controlled finally, and the regulating range is wide.

Description

technical field [0001] The invention belongs to the technical field of petroleum resin preparation, and in particular relates to an acid-modified C5 petroleum resin and a preparation method thereof with controllable molecular weight. Background technique [0002] Petroleum resin (hydrocarbon resin) is a thermoplastic resin produced by the C5 and C9 fractions produced by petroleum cracking by pretreatment, polymerization, distillation and other processes. It is not a high polymer, but a molecular weight between 300-3000 Oligomer. Petroleum resin is named after the source of petroleum derivatives. It has low acid value, good miscibility, water resistance, ethanol resistance and chemical resistance, chemical stability to acid and alkali, and good viscosity adjustment and thermal stability. features. Petroleum resins are generally not used alone, but are used together as accelerators, regulators, modifiers and other resins. [0003] According to different raw materials, petro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F289/00C08F240/00C08F236/10C08F236/08C08F212/08C08F222/06
CPCC08F240/00C08F289/00C08F236/10C08F236/08C08F212/08C08F222/06
Inventor 程露露郭书成张素芳李昝高晓鹏
Owner 安徽同心新材料科技有限公司
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