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Surface modification effect is good, these 10 indicators have the final say!

Surface modification effect is good, these 10 indicators have the final say!

In the actual production process, the correct characterization of the surface modification effect is very important for the timely adjustment of the modifier, process and equipment parameters. The characterization method of powder surface modification effect can be divided into direct method and indirect method.

2022-06-10

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Composition Analysis of Titanate Coupling Agent and Its Mechanism and Application Method

Composition Analysis of Titanate Coupling Agent and Its Mechanism and Application Method

Titanate coupling agent is a kind of novel chemical additive which has developed rapidly in the past ten years and is widely used in many production fields. Common titanate coupling agents include monoalkoxy fatty acid type, phosphate ester type, chelate type and ligand type. The application of titanate coupling agent opens up a new way for inorganic filling of polymer synthetic materials. Inorganic substances treated with titanate coupling agent are hydrophilic and organic, it is widely used in polyolefin resins and synthetic rubber and other polymer materials; the titanate coupling agent added to the polymer can improve the impact strength of the material, the amount of filler can reach more than 50%, and will not occur phase separation. Carbon black activated with titanate coupling agent, SiO2, CaCO3, metal oxide added to thermoplastics and rubber, can reduce the system viscosity, improve toughness and mechanical properties. Kan

2021-11-22

22

2021

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Market report of titanate coupling agent

Market report of titanate coupling agent

Titanate coupling agent is a coupling agent developed by Kenledge Petrochemical Company in the late 1970 s. For thermoplastic polymers and dry fillers, there is a good coupling effect; This kind of coupling agent can be expressed by the general formula: ROO(4-n)T(OX-R "Y)n(n = 2,3); Where RO-is a hydrolyzable short chain alkoxy group that can react with hydroxyl groups on the surface of inorganic substances to achieve the purpose of chemical coupling; 0X-can be carboxyl group, alkoxy group, sulfonic acid group, phosphorus group, etc, these groups are very important and determine the special functions of titanate, such as sulfonic acid group giving organic matter-specific thixotropy; Pyrophosphoryloxy group has flame retardant and rust prevention, and enhances adhesion. Phosphoryloxy group can provide anti-oxidation, flame resistance, etc., so through the selection of 0X-, titanate can have both coupling and other special properties; R °-is a long carbon bond group, which is relatively soft, it can be bent and entangled with organic polymers, so that the compatibility of organic and inorganic substances is improved, and the impact strength of the material is improved; Y is hydroxyl, amino, epoxy or double-bond-containing groups, etc. These groups are connected at the end of titanate molecules and can be combined with organic substances through chemical reactions. Application in the plastic industry, can make the filler get activation treatment, so as to improve the filling, salty resin, reduce the cost of products, while improving the processing performance, increase the product gloss, improve the quality.

2021-11-22

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2021

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Coupling effect and common industrial application of titanate coupling agent

Coupling effect and common industrial application of titanate coupling agent

Titanate coupling agent is a coupling agent developed by Kenledge Petrochemical Company in the late 1970 s. For thermoplastic polymers and dry fillers, there is a good coupling effect.

2021-11-22

22

2021

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Modification of nano calcium carbonate and its application in PVC industry

Modification of nano calcium carbonate and its application in PVC industry

Plastic filling modification has a long history, its original intention is to reduce costs, such as adding calcium carbonate to PVC hard products, not only can reduce production costs, the appropriate amount of addition can also improve the mechanical properties of PVC hard products. With the focus of material science research turning to nano-materials, the application of nano-calcium carbonate in PVC industry has been widely valued.

2021-06-08

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2021

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Titanate coupling agent, an all-round coupling agent

Titanate coupling agent, an all-round coupling agent

Titanate coupling agent first appeared in the 1970 s. In December 1974, Kenrich Petrochemical Company of the United States reported a new type of coupling agent, which has a good coupling effect on many dry powders. Since then, inorganic filled polyolefin composite materials with titanate coupling agent have been published. In recent years, a series of titanate coupling agents developed by Kenrich companies in the United States have been widely used. Carbon black activated with titanate coupling agent, SiO2, CaCO3, metal oxides added to thermoplastics and rubber can reduce the system viscosity, improve toughness and mechanical properties.

2021-06-08

08

2021

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Selection of Titanate Coupling Agent

Selection of Titanate Coupling Agent

Before the selection of coupling agent, should first determine the moisture content of the filler used, according to the wet state and the characteristics of the aforementioned various types of titanate to determine the specific varieties, dry filler should be single alkoxy type, wet filler optional chelate type or single alkoxy pyrophosphate type.

2021-06-08

08

2021

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Surface modification of calcium carbonate

Surface modification of calcium carbonate

Surface modification is an important processing technology to improve the application performance of calcium carbonate, improve the applicability, expand the market and the amount of the necessary, at present, there are mainly inorganic surface treatment, organic surface modification, polymer surface modification, mechanical force chemical modification and high-energy surface modification and other five categories of methods.

2021-06-08

08

2021

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What are the applications of silane coupling agents?

What are the applications of silane coupling agents?

Silane coupling agents are also known as vinyl silane, amino silane, epoxy silane, mercapto silane and methacryloxy silane, etc., which are commonly used silane coupling agents. Its application can be summarized into three aspects

2021-04-07

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2021

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Effect of KH550 silane coupling agent on the structure and dielectric properties of composites

Effect of KH550 silane coupling agent on the structure and dielectric properties of composites

The surface of Ba TiO3 powder was treated with KH550 silane coupling agent, and the Ba2TiO3 / PVDF composite was prepared by solution mixing method and hot pressing process. The morphology of the composites was analyzed by scanning electron microscopy, and it was found that the amount of coupling agent had a great influence on the morphology of the composites;

2021-04-07

07

2021

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04

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NANJING HERun COUPLING AGENT CO., LTD

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