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A short-chain branched oil-absorbing resin and its preparation method

An oil-absorbing resin and short-branched technology, which is applied in the field of short-branched oil-absorbing resin and its preparation, can solve the problems of destroying the flexibility of the material, difficult to stretch the molecular chain segment, and reducing the oil absorption rate of the resin, so as to achieve good oil absorption rate, large oil absorption rate, etc. Improved oil retention and thermal stability

Inactive Publication Date: 2019-05-07
GUIZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the introduction of rigid groups destroys the flexibility of the material. Under the same temperature conditions, when the resin absorbs oil, it is difficult to stretch the molecular segments, and the elastic retraction force of the molecular segments and the force generated by solvation quickly reach balance, the oil absorption rate of the resin is reduced

Method used

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  • A short-chain branched oil-absorbing resin and its preparation method
  • A short-chain branched oil-absorbing resin and its preparation method
  • A short-chain branched oil-absorbing resin and its preparation method

Examples

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Effect test

Embodiment 1）

[0019] Example 1), calculated in parts by weight, the resin consists of 5-10 parts of methyl methacrylate, 15-20 parts of butyl acrylate, 2-5 parts of styrene, 0.1-0.3 parts of benzoyl peroxide, poly It is prepared by suspension polymerization of 0.1-0.5 parts of vinyl alcohol and 0.1-0.5 parts of divinylbenzene. The resin has not been polymerized by continuous dropwise addition of KH570, and its decomposition rate is relatively fast and its decomposition temperature is low, such as figure 2 shown.

Embodiment 2）

[0020] Example 2), calculated in parts by weight, the resin consists of 5-10 parts of methyl methacrylate, 15-20 parts of butyl acrylate, 2-5 parts of styrene, 0.1-0.3 parts of benzoyl peroxide, poly It is made by suspension polymerization of 0.1-0.5 parts of vinyl alcohol, 0.1-0.5 parts of divinylbenzene, and 1-5 parts of coupling agent KH570. The coupling agent KH570 is added in the reaction process by continuous dropping process. Its decomposition rate is low and its decomposition temperature is high, such as image 3 As shown, the oil absorption rate of the resin does not change much, and the oil retention rate of the oil product is enhanced.

[0021] The oil absorption rate of the resin polymerized by the programmed temperature rise process and the continuous dripping process described in the present invention has little change, the smaller the k value of the slow-release equation, the higher the oil retention rate, the higher the thermal decomposition temperature, and th...

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Abstract

The invention discloses short branched chain oil absorbent resin and a preparation method thereof. The short branched chain oil absorbent resin is prepared by carrying out copolymerization on the following raw materials: 5-10 parts of methyl methacrylate, 15-20 parts of butyl acrylate, 2-5 parts of styrene, 0.1-0.3 part of benzoyl peroxide, 0.1-0.5 part of polyvinyl alcohol, 0.1-0.5 part of divinylbenzene and 1-5 parts of a coupling agent KH570. The resin synthesized by using the technology has good oil absorption rate, very high oil retention rate and improved thermal stability.

Description

technical field [0001] The invention relates to a short-chain branched oil-absorbing resin and a preparation method thereof, belonging to the technical field of polymer synthesis. Background technique [0002] Short-chain branched oil-absorbing resin belongs to synthetic resin, which has the advantages of fast oil absorption rate, strong oil retention capacity, good cold resistance and not easy to aging, etc. It can be used as fragrance agent, rubber oil modifier, and water treatment. When used under high temperature conditions, the molecular chain segments in the resin are easily stretched due to solvation, showing a large oil absorption rate until the resin infinitely swells and the molecular structure is destroyed. In order to improve the thermal stability of this series of resins, it is usually necessary to graft and modify the resin to introduce rigid groups such as benzene rings, phenols, biphenyls, naphthalene, etc. However, the introduction of rigid groups destroys ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/14C08F212/08C08F212/36C08F2/20
CPCC08F2/20C08F220/18C08F220/1804C08F220/14C08F212/08C08F212/36
Inventor 伍玉娇白琪俊李杨周琴龙琼
Owner GUIZHOU INST OF TECH