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Terpene resin modified resorcinol-formaldehyde bonding resin and preparation method and application thereof

A technology for alkylating resorcinol and terpene resins with styrene, which is applied in the direction of aldehyde/ketone condensation polymer adhesives, adhesive types, adhesives, etc., can solve the problem of insufficient compatibility and the failure of the network structure to reach the optimum Optimization, dispersion performance, influence of mixing uniformity, etc.

Active Publication Date: 2019-01-04
RACHEM CHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high polarity of resorcinol-formaldehyde and its modified products, the steam aging resistance and salt water aging resistance of the bonding layer rubber are insufficient; and because of insufficient compatibility with rubber, its dispersion performance in rubber, The uniformity of mixing is affected, and the resorcinol-formaldehyde (RF) network structure is not optimized, which affects the mechanical properties of the adhesive layer compound and the service life of the fiber-reinforced rubber product composite

Method used

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  • Terpene resin modified resorcinol-formaldehyde bonding resin and preparation method and application thereof
  • Terpene resin modified resorcinol-formaldehyde bonding resin and preparation method and application thereof
  • Terpene resin modified resorcinol-formaldehyde bonding resin and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] In the 2000ml round bottom flask that is equipped with stirring, temperature control, reflux condenser and dropping funnel, add the orange oil 400g after refining (containing d-limonene 70%, γ-terpinene 8%, β-myrcene 7% , α-pinene 9%, β-pinene 6%, are all wt%), add 200g toluene, under the condition of 15 ℃, gradually drop catalyst (15g aluminum chloride and 5g antimony trichloride are dissolved in 100g toluene ), the catalyst was dripped in 30 minutes, the temperature was raised to 30° C., and the temperature was maintained for 4 hours, 150 g of hot water was added, washed twice with water, the liquid was separated to remove the upper organic phase, and toluene and unreacted monomers were distilled off to obtain 348 g of terpene resin A. The softening point is 75°C.

Embodiment 2-5

[0064] Add 110g resorcinol and 0.2g PTSA to a 500ml round bottom flask equipped with stirring, temperature control, reflux condenser and dropping funnel, heat up and melt, gradually add formaldehyde dropwise, and react under reflux at 100°C after the dropwise addition 15min, then distilled under normal pressure and heated up to 150°C, kept at 150°C and -0.07Mpa~-0.1Mpa vacuum for 10min, after breaking the vacuum, added the terpene resin A synthesized in Example 1, and kept the reaction at 150°C for 30min, in NaOH And, discharging, to obtain terpene resin modified resorcinol-formaldehyde adhesive resin.

[0065] Table 1. Embodiment 2~5 resin synthesis raw material formula and resin test result

[0066]

Embodiment 6

[0068] Add 0.5mol phenol to a 500ml round bottom flask equipped with stirring, temperature control, reflux condenser and dropping funnel, add 0.3g of catalyst PTSA and stir for 10min, at 100°C, add dropwise 37% liquid Aldehyde 0.3mol, after dropping the first stage of formaldehyde, add 0.5mol of resorcinol, then dropwise add the second stage of 37% liquid aldehyde 0.34mol, after dropping the second stage of formaldehyde, keep reflux for 15min, and then Distill and heat up to 150°C, keep at 150°C and -0.07Mpa~-0.1Mpa vacuum for 10min, after breaking the vacuum, add 40g of ZONAREZ B-10 terpene resin (softening point 10°C) from Arizona Chemical, and react at 150°C Keep it for 30 minutes, neutralize it with NaOH, and discharge to obtain the target resin, terpene resin modified resorcinol-formaldehyde adhesive resin, with a softening point of 101°C and 1.5% free resorcinol.

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Abstract

The invention discloses a terpene resin modified resorcinol-formaldehyde bonding resin and a preparation method and application thereof. In the presence of acid catalyst, terpene resin is adopted to modify resorcinol-formaldehyde resin, and the terpene resin modified resorcinol-formaldehyde bonding resin is prepared. The terpene resin modified resorcinol-formaldehyde bonding resin can be applied to steel wire coating and tire cord thread coating, adhesive force between a skeleton material and rubber can be improved, and the mechanical performance and aging resistance of a rubber bonding layerare improved.

Description

technical field [0001] The invention belongs to the field of rubber resin processing, and in particular relates to a terpene resin modified resorcinol-formaldehyde adhesive resin and a preparation method and application thereof. Background technique [0002] In the production of reinforced rubber products such as tires and hoses, various skeleton materials such as rayon, nylon, polyester, steel wire and glass fiber are often used to increase the strength of rubber products, and bonding is used between the skeleton material and rubber Systems, for example, binding resins (methylene acceptors). In the prior art, resorcinol is widely used as methylene acceptor, and hexamethylenetetramine (HMT) and hexamethoxymethylmelamine (HMMM) are used as methylene donor compounds to promote steel Bonding of cords and rubber / rubber compositions. During the vulcanization process, the methylene donor releases formaldehyde, which reacts with resorcinol in situ to form a resorcinol-formaldehyd...

Claims

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Application Information

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IPC IPC(8): C08G81/02C09J161/14
CPCC08G81/024C09J161/14
Inventor 侯远杨赵燕超王万兴董栋
Owner RACHEM CHINA CO LTD
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