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Modified polyacrylate dispersion solution

A technology of polyacrylate and acrylate, which is applied in the field of modified polyacrylate dispersion, and can solve problems such as poor processing continuity

Active Publication Date: 2019-03-22
佛山罗斯夫科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, existing acrylate polymers have poor processing durability

Method used

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  • Modified polyacrylate dispersion solution
  • Modified polyacrylate dispersion solution

Examples

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preparation example Construction

[0040] The preparation method of the modified polyacrylate dispersion of the present application can be obtained by emulsion polymerization or solution copolymerization. Preferably, emulsion polymerization is used.

[0041] For example, when it does not contain crosslinking monomer units, other acrylate monomer units other than the aforementioned acrylate type, and / or non-crosslinking non-acrylate type double bond-containing monomer units, the monomer is defined as an acrylate monomer. When containing cross-linking monomer units, other acrylate monomer units other than the aforementioned acrylate type and / or non-cross-linking non-acrylate type double-bond-containing monomer units, the acrylate monomer and cross-linking monomer units, non- Other acrylate monomer units of the aforementioned acrylate type and / or non-crosslinking non-acrylate type double bond-containing monomer units are collectively referred to as monomers.

[0042] In one embodiment, the preparation process of ...

Embodiment 1

[0067] Add 100 parts by mass of C6, 50 parts by mass of silica sol B, 2 parts by mass of S-60, 3 parts by mass of AEO-9, 2 parts by mass of AC-1810, 3 parts by mass of 1831 and 253 parts by mass of water into the reactor, and heat up to Pre-emulsification is carried out at 40-45°C. Then homogenize under high pressure for 30 minutes, transfer the homogenized solution to the reaction kettle, and start stirring. Dissolve 0.5 parts by mass of initiator azobisisobutylamidine hydrochloride (AIBA) into 5 parts by mass of water to form a uniform solution, and add it into the reaction kettle. Then the temperature was raised to 70-75° C. for 5 hours to obtain the hydrophobic silica sol-modified polyacrylate dispersion of the present invention.

[0068] Examples 2-3 and Comparative Examples 1-3 all adopt the same process as Example 1, and the specific formulations are shown in Table 2. That is to say, add the ingredients other than the initiator into the reactor, and raise the temperat...

Embodiment 4

[0070] 80 parts by mass of C6, 40 parts by mass of silica sol B, 15 parts by mass of SA, 3 parts by mass of GA, 15 parts by mass of tripropylene glycol, 2 parts by mass of S-60, 3 parts by mass of AEO-9, 2 parts by mass of AC-1810 , 3 parts by mass of 1831 and 238 parts by mass of water were added to the reactor, and the temperature was raised to 40-45°C for pre-emulsification. Then homogenize under high pressure for 30 minutes, transfer the homogenized solution to the reaction kettle, and start stirring. Dissolve 0.5 parts by mass of initiator AIBA into 5 parts by mass of water to form a uniform solution, and add it to the reaction kettle. Then the temperature was raised to 65° C. to start the timing reaction, and 2 parts by mass of vinyl chloride were introduced within 1 hour after the reaction started. The temperature was raised to 70-75° C. to continue the polymerization reaction for 5 hours to obtain the hydrophobic silica sol-modified polyacrylate dispersion of the pres...

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Abstract

The invention relates to a modified polyacrylate dispersion solution. The modified polyacrylate dispersion solution comprises hydrophobic silica sol, an acrylate monomer, a surfactant and water, wherein the acrylate monomer is either a fluorocarbon group containing acrylate monomer or a long-chain hydrocabon group containing acrylate monomer, and the mass percent of the hydrophobic silica sol doesnot exceed 20% the total mass of the modified polyacrylate dispersion solution; the hydrophobic silica sol is prepared through subjecting silica sol to a reaction with an alkylsiloxane compound and / or alkylsiloxane polymer; the mass ratio of the silica sol to the alkylsiloxane compound and / or alkylsiloxane polymer is (5: 1) to (5: 2). The modified polyacrylate dispersion solution has relatively good waterproof performance and durable waterproof performance and also has relatively good processing persistency. Through designing the mass ratio of the silica sol to the alkylsiloxane compound or alkylsiloxane polymer, the durable waterproof performance and processing persistency can be further improved.

Description

technical field [0001] The invention relates to the technical field of waterproof treatment, in particular to a modified polyacrylate dispersion. Background technique [0002] Acrylate polymers are polymers produced by copolymerization with methyl acrylate, ethyl ester, butyl and methyl methacrylate as the main raw materials. They have certain waterproof properties, especially fluorine-containing acrylate polymers or Long-chain acrylate polymers have good waterproof properties and are often used in the technical field of waterproofing. [0003] However, the existing acrylate polymers have poor processing durability. And with the increase of labor costs, in order to reduce production costs, the industry hopes that the above-mentioned acrylate polymers have better processing continuity, so that the same capacity of acrylate polymers can be treated with more surface waterproofing to treat larger areas substrates or a greater number of substrates. How to improve the processin...

Claims

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Application Information

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IPC IPC(8): C08F120/24C08F120/18C08F220/24C08F220/18C08F2/30C08F2/44C08K3/36
CPCC08F2/30C08F2/44C08F120/18C08F120/24C08F220/24C08K3/36C08F220/1818
Inventor 向德轩陈迪钊胡扬剑欧阳跃军刘渊汤艳吴峰肖柳蒋霞袁彩云武嘉宇
Owner 佛山罗斯夫科技有限公司
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