Method for modifying rubber by cardanol derivative

• Main Author: TAN JINHE
• Format: Patent
• Language: Chinese; English
• Published: 16.11.2021
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; HETEROCYCLIC COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to the field of rubber modification, in particular to a method for modifying rubber by cardanol derivative. The invention firstly provides a preparation method of the cardanol derivative. The preparation method comprises the following steps: S1, reacting epoxidized cardanol with trimethoxychlorosilane to obtain an intermediate 1; S2, subjecting the intermediate 1 and amine alkyl trialkoxysilane to a reaction, and obtaining the cardanol derivative. The phenolic hydroxyl group of epoxidized cardanol and the epoxy group on the alkyl chain are simultaneously modified by silane to obtain the novel rubber modifier. When the modifier disclosed by the invention is used for modifying phenolic resin-nitrile rubber, a product can have better adhesive property on a glass substrate. 本发明涉及橡胶改性领域，具体涉及一种腰果酚衍生物改性橡胶的方法。本发明首先提供一种腰果酚衍射物的制备方法，包括以下步骤：S1：将环氧化腰果酚和三甲氧基氯硅烷反应得到中间体1；S2：将中间体1和胺烷基三烷氧基硅烷反应即得所述腰果酚衍生物。本发明同时对环氧化腰果酚的酚羟基和烷基链上的环氧基团同时使用硅烷修饰得到一种新型橡胶改性剂。使用发明的改性剂对酚醛树脂-丁腈橡胶进行改性时，可以使其具有对玻璃基材较好的粘结性能。