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A kind of composite ring compression enhancer and preparation method thereof

A technology of reinforcing agent and composite ring, which is applied in the field of composite ring pressure reinforcing agent and its preparation, can solve the problems of low ring pressure strength, strong water absorption, high production cost, and achieves low water absorption, easy operation and low production cost. Effect

Active Publication Date: 2016-08-24
大连环球矿产股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a composite ring pressure reinforcing agent and its preparation method, to at least solve the problems of low ring pressure strength, strong water absorption and high production cost of high-strength corrugated paper in the past.

Method used

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preparation example Construction

[0023] The preparation method of this composite ring pressure intensifier, the specific preparation process is as follows:

[0024] 1) Mineral dressing: select wollastonite with acicular structure;

[0025] 2) Jaw Crusher: The wollastonite is primary crushed by a jaw crusher to obtain wollastonite fragments;

[0026] 3) Initial grinding: grind the above wollastonite fragments with a grinder until the particle diameter is less than or equal to 5mm;

[0027] 4) Grinding again: further grinding the above wollastonite particles until the particle size is 800~1000 mesh powder;

[0028] 5) Compounding: compound the above-mentioned wollastonite powder and modified starch according to the weight ratio of 1:0.6~0.9 to obtain the finished product.

[0029] In this preparation process, the wollastonite with acicular structure is selected through 1) beneficiation, and then through step 2) the wollastonite is primary crushed for convenient grinding, and then through step 3) and step 4) f...

Embodiment 1

[0032] A composite ring pressure enhancer, which is compounded by wollastonite powder with a particle size of 800~1000 mesh and modified starch, wherein, by weight, the ratio of wollastonite powder:modified starch is 1:0.6, and silicon Limestone powder is ground from wollastonite with needle-like structure, and wollastonite (by weight) is composed of wollastonite powder with an aspect ratio of 15~30:1 and a medium aspect ratio of 4~10 :1 wollastonite powder is mixed according to 4:1.

[0033] Its specific preparation process is consistent with the above-mentioned preparation process.

Embodiment 2

[0035] A composite ring pressure enhancer, which is compounded by wollastonite powder with a particle size of 800~1000 mesh and modified starch, wherein, by weight, the ratio of wollastonite powder:modified starch is 1:0.9, and silicon Limestone powder is ground from wollastonite with needle-like structure, and wollastonite (by weight) is composed of wollastonite powder with an aspect ratio of 15~30:1 and a medium aspect ratio of 4~10 :1 wollastonite powder is mixed according to 6:1.

[0036] Its specific preparation process is consistent with the above-mentioned preparation process.

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Abstract

The invention discloses a composite ring crush strengthening agent and a preparation method of the composite ring crush strengthening agent. The composite ring crush strengthening agent is formed by compounding wollastonite powder and modified starch, wherein the weight ratio of the wollastonite powder to the modified starch is 1: (0.6-0.9), and the wollastonite powder is prepared by grinding wollastonite with a needle-shaped structure. The composite ring crush strengthening agent is prepared by the steps of mineral separation, jaw crushing, primary grinding, regrinding, compounding and the like; the composite ring crush strengthening agent has the advantages that the ring crush compression resistance of high-strength corrugated paper is improved, the effect of reducing water absorption is obvious, manufacturing cost is low, operation is easy, etc.

Description

technical field [0001] The invention relates to additives used in the field of papermaking, and in particular provides a composite ring pressure reinforcing agent and a preparation method thereof. Background technique [0002] At present, the domestic production of high-strength corrugated mostly uses national waste. Due to the problem of raw materials, the ring compression strength of domestic high-strength corrugated paper often does not meet the standard, and the corrugated paper has strong water absorption. After reaching the client, due to the problem of water absorption, the ring pressure is still lower than when it leaves the factory. There will be a decline, seriously affecting the use of customers. [0003] In order to solve the above problems, most manufacturers adopt the composite sizing process of starch + AKD (alkyl ketene dimer), but the following problems still exist in this implementation mode: 1. The effect of increasing the ring pressure is not obvious; 2. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/18D21H17/68D21H17/28
Inventor 张晶张昕
Owner 大连环球矿产股份有限公司
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