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Synthesis method of polyether titanate coupling agent

A technology of polyether titanate and synthesis method, which is applied in the synthesis of coupling agent and the field of synthesis of polyether titanate coupling agent, which can solve the effect of reactive elastomer oligomer reactivity on toughening and strengthening Great impact, high manufacturing cost of reactive elastomer oligomers, unfavorable large-scale application and promotion, etc., to achieve the effect of convenient manufacturing, enhanced function and effect, and saving manufacturing steps

Inactive Publication Date: 2007-02-21
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in such treatment agents and treatment methods, the type, molecular weight and reactivity of reactive elastomer oligomers have a great influence on the toughening and strengthening effects, and it is difficult to choose
Moreover, the production cost of highly active reactive elastomer oligomers is high and the storage stability is poor, which is not conducive to large-scale application and promotion.

Method used

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  • Synthesis method of polyether titanate coupling agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1. Synthesis of polyether-based isooctyl pyrophosphate: 300ml 120# solvent naphtha is added in a 2000ml three-necked flask, and 43.3 grams of isooctyl alcohol and polyethers are added in a molar ratio of 2:1 by isooctyl alcohol and polyether. Ether N333 (trifunctionality, molecular weight 3360) 560 g (total 0.5 mol). Stir, add 35.5 grams (0.25mol) of phosphorus pentoxide in batches at room temperature, control the reaction temperature to be less than 60°C, react for 2 hours between 50-60°C, and remove solvent oil by distillation under reduced pressure to obtain about 638.8 grams (about 0.25mol) mol) light yellow viscous liquid.

[0014] Synthesis of polyether-based isooctyl pyrophosphoryloxy (isopropyl tri) titanate: 23.7 grams (0.0833mol) of isopropyl orthotitanate was added to a 2000ml three-necked flask, and 200ml of 120# solvent oil was added at the same time. Add 638.8 grams (0.25mol) of polyether-based isooctyl pyrophosphate dropwise at room temperature. ...

Embodiment 2

[0018] Example 2. Change 560 grams of polyether N333 (trifunctionality, molecular mass 3360) into 291.7 grams of polyether N220 (difunctionality, molecular mass 1750), and the others are the same as in Example 1. The resulting product is referred to as NT220.

Embodiment 3

[0019] Example 3. Change 560 grams of polyether N333 (trifunctionality, molecular mass 3360) to 795 grams of polyether N330 (trifunctionality, molecular mass 4770). Others are the same as in Example 1, and the resulting product is called NT330 for short.

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Abstract

A polyether titanate as coupling agent is prepared through proportionally mixing low-molecular alcohol with hydroxy terminated polyether oligomer, adding organic solvent, reacting on P2O5 to obtain polyether alkylpyrophosphate, proportionally mixing it with isopropyl titanate in organic solvent, and reacting.

Description

Technical field: [0001] The invention relates to a method for synthesizing a coupling agent, in particular to a method for synthesizing a polyether titanate coupling agent, and belongs to the field of polymer material modification. Background technique: [0002] In recent years, the use of inorganic filler particles to toughen and strengthen polymers to improve the notched impact toughness and flexural modulus of polymer materials and reduce material manufacturing costs has become a subject of widespread concern. In this modification method, the surface properties of the inorganic filler particles and their interfacial conditions in the material are crucial. At present, the more common method is to use silane, titanate, aluminate and other coupling aids or other polar small molecular substances to treat the surface of the filler to improve the affinity between the inorganic filler particles and the polymer matrix. . However, this modification method can generally only impr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/10C08K5/56
Inventor 张云灿朱风娥李怀栋
Owner NANJING TECH UNIV