KR20130090729A - Method of preparing vinyl chloride latex having high stability - Google Patents

Method of preparing vinyl chloride latex having high stability Download PDF

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KR20130090729A
KR20130090729A KR1020120063650A KR20120063650A KR20130090729A KR 20130090729 A KR20130090729 A KR 20130090729A KR 1020120063650 A KR1020120063650 A KR 1020120063650A KR 20120063650 A KR20120063650 A KR 20120063650A KR 20130090729 A KR20130090729 A KR 20130090729A
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vinyl chloride
monomer
producing
emulsifier
homogenizer
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KR101498339B1 (en
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이현섭
김한홍
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주식회사 엘지화학
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F14/00Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F14/02Monomers containing chlorine
    • C08F14/04Monomers containing two carbon atoms
    • C08F14/06Vinyl chloride
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00Processes of polymerisation
    • C08F2/01Processes of polymerisation characterised by special features of the polymerisation apparatus used
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00Processes of polymerisation
    • C08F2/12Polymerisation in non-solvents
    • C08F2/16Aqueous medium
    • C08F2/22Emulsion polymerisation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00Processes of polymerisation
    • C08F2/12Polymerisation in non-solvents
    • C08F2/16Aqueous medium
    • C08F2/22Emulsion polymerisation
    • C08F2/24Emulsion polymerisation with the aid of emulsifying agents
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00Processes of polymerisation
    • C08F2/44Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: A manufacturing method of a vinyl chloride latex is provided to manufacture particles of various particle sizes having desired physical properties and to reduce a reaction time. CONSTITUTION: A manufacturing method of a vinyl chloride latex includes a swelling-accelerating step of injecting polymerization water, a vinyl chloride monomer, an emulsifier, and a monomer-absorbing accelerator into a pre-mixing tank and stirring the materials to obtain a mixture; a homogenization step of having the mixture pass through a high pressure homogenizer; and a polymerization step polymerizing the mixture in a reactor. The amounts of the polymerization water, the emulsifier, and the monomer-absorbing accelerator used are 20-150, 0.1-10, and 0.1-10 parts by weight respectively, based on 100.0 parts by weight of the vinyl chloride monomer. [Reference numerals] (1) Inject raw material; (2) Swelling accelerating process; (3) Homogenization process; (AA) 5-60 minutes; (BB) Polymerization water; (CC) Emulsifier; (DD) Homogenizer; (EE) Internal pressure control; (FF) High pressure homogenizer

Description

안정성이 높은 염화비닐계 라텍스의 제조방법{Method of preparing vinyl chloride latex having high stability}Method of preparing vinyl chloride latex having high stability

본 발명은 염화비닐계 라텍스의 제조방법에 관한 것으로서, 더욱 상세하게는 중합수, 염화비닐 단량체, 유화제 및 모노머 흡수 촉진제를 프리-믹싱 탱크에 투입하고 교반시켜 혼합물을 얻는 팽윤 촉진 단계, 상기 혼합물을 고압형 균질화기를 통과시키는 균질화 단계 및 상기 균질화된 혼합물을 반응기에서 중합시키는 중합 단계를 포함함으로써, 다양한 크기를 가진 입자를 제조할 수 있으며 생성된 액적의 안정성을 높일 수 있는 염화비닐계 라텍스의 제조방법에 관한 것이다.The present invention relates to a method for producing a vinyl chloride-based latex, and more particularly, a swelling promoting step of adding a polymerization water, a vinyl chloride monomer, an emulsifier and a monomer absorption accelerator to a pre-mixing tank and stirring to obtain a mixture. By including a homogenization step through a high pressure homogenizer and a polymerization step in which the homogenized mixture is polymerized in a reactor, particles having various sizes can be prepared and a method of producing vinyl chloride latex can improve stability of the resulting droplets. It is about.

시드 유화중합방법에 의하여 페이스트 염화비닐계 수지를 제조하는 것은 2가지 종류의 평균 입경이 다른 시드를 중합 초기에 투입하여, 염화비닐 단량체가 시드와 반응하면서 성정하여 최종 라텍스 입자를 제조하는 것이다. 두 가지 종류의 시드 중 제1 시드는 염화비닐계 단량체, 유화제, 유용성 개시제 등을 첨가하고 균질기 펌프를 이용해 균질화한 후 중합하여 제조하는 것이다. 제2 시드는 유화중합으로 제조한다. 제1 시드는 입자 내에 유용성 개시제를 포함하고 있기 때문에 그 자체로 반응 사이트를 가지게 된다. 따라서 제1 시드 중합 시에 개시제를 과량 투입하여 중합이 완료된 입자 내에 개시제 함량을 적정량 남겨 시드 유화중합시 중합 개시가 잘 활성화되도록 할 필요가 있다. 제1 시드를 제조하는 방법에 있어 유화제 투입량 변경을 통한 입경의 조절이 제한적이고 때로는 액적이 생성되지 않거나 안정성이 떨어지는 문제점이 있다.The preparation of the paste vinyl chloride resin by the seed emulsion polymerization method involves the introduction of seeds having two average particle diameters different from each other at the initial stage of polymerization, whereby the vinyl chloride monomer is reacted with the seeds to produce the final latex particles. Among the two kinds of seeds, the first seed is prepared by adding a vinyl chloride monomer, an emulsifier, a oil-soluble initiator, etc., homogenizing using a homogenizer pump, and then polymerizing. The second seed is prepared by emulsion polymerization. Since the first seed contains the oil-soluble initiator in the particle, it has a reaction site by itself. Therefore, it is necessary to add an excessive amount of the initiator during the first seed polymerization to leave an appropriate amount of the initiator content in the particles in which the polymerization is completed so that the polymerization start is well activated during the seed emulsion polymerization. In the method of preparing the first seed, there is a problem in that the control of the particle size through changing the amount of the emulsifier is limited and sometimes droplets are not produced or the stability is inferior.

상기와 같은 종래 기술의 문제점을 해결하고자 본 발명의 목적은 제 1 시드를 제조하는 방법에 있어 유화제 투입량 변경을 통한 입경의 조절이 제한적이고 때로는 액적이 생성되지 않거나 안정성이 떨어지는 문제점이 있기 때문에 모노머 흡수 촉진제의 도입과 팽윤 촉진 단계를 도입하여 해결하기 위한 것이다.An object of the present invention to solve the problems of the prior art as described above is a monomer absorption in the method of manufacturing the first seed is limited in the control of the particle size by changing the amount of the emulsifier input and sometimes there is a problem that drops are not generated or stability is poor The introduction of the accelerator and the step of promoting the swelling are to be solved.

본 발명의 상기 목적은 하기 설명되는 본 발명에 의하여 모두 달성 될 수 있다.The above object of the present invention can be achieved by the present invention described below.

본 발명에 따르면, 중합수, 염화비닐 단량체, 유화제 및 모노머 흡수 촉진제를 프리-믹싱 탱크에 투입하고 교반시켜 혼합물을 얻는 팽윤 촉진 단계; 상기 혼합물을 고압형 균질화기를 통과시키는 균질화 단계; 및 상기 균질화된 혼합물을 반응기에서 중합시키는 중합 단계;를 포함하여 이루어지는 것을 특징으로 하는 염화비닐계 라텍스의 제조방법을 제공한다.According to the present invention, a swelling promoting step of adding a polymerization water, a vinyl chloride monomer, an emulsifier and a monomer absorption promoter into a pre-mixing tank and stirring to obtain a mixture; A homogenization step of passing the mixture through a high pressure type homogenizer; And a polymerization step of polymerizing the homogenized mixture in a reactor.

본 발명은 원하는 물성 및 용도에 맞춰 다양한 크기의 입자를 제조할 수 있으며, 이를 시드 유화중합에 적용시 원하는 물성을 쉽게 달성할 수 있다. 추가적으로 반응시간이 단축되는 효과도 얻을 수 있다.The present invention can produce particles of various sizes according to the desired physical properties and applications, it is easy to achieve the desired physical properties when applied to the seed emulsion polymerization. In addition, the reaction time can be shortened.

또한, 본 발명은 균질화 방법에 있어서 균질화기를 사용하여 넓은 범위의 입자를 제조할 수 있으며, 모노머 흡수 촉진제와 함께 팽윤 촉진 공정을 추가하여 생성된 액적의 안정성을 높일 수 있다.In addition, the present invention can produce a wide range of particles by using a homogenizer in the homogenization method, and increase the stability of droplets generated by adding a swelling promotion process together with a monomer absorption promoter.

도 1은 본 발명의 일 실시예에 따른 염화비닐계 라텍스의 제조공정을 도시화한 도면이다.1 is a view showing a manufacturing process of the vinyl chloride-based latex according to an embodiment of the present invention.

본 발명에 따르면, 중합수, 염화비닐 단량체, 유화제 및 모노머 흡수 촉진제를 프리-믹싱 탱크(pre-mixing tank)에 투입하고 교반시켜 혼합물을 얻는 팽윤 촉진 단계; 상기 혼합물을 고압형 균질화기를 통과시키는 균질화 단계; 및 상기 균질화된 혼합물을 반응기에서 중합시키는 중합 단계;를 포함하여 이루어지는 것을 특징으로 하는 염화비닐계 라텍스의 제조방법을 제공한다.
According to the present invention, a swelling promotion step of adding a polymerization water, a vinyl chloride monomer, an emulsifier and a monomer absorption accelerator into a pre-mixing tank and stirring to obtain a mixture; A homogenization step of passing the mixture through a high pressure type homogenizer; And a polymerization step of polymerizing the homogenized mixture in a reactor.

이하 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail.

본 발명은 고압형 균질화기의 압력을 조절하여 입자를 제조한다. 1차적으로 모노머 흡수 촉진제, 부원료 및 모노머를 프리-믹싱 탱크에 투입한 후 진공 상태에서 일정 시간 교반시켜 준다. 그 후 고압형 균질화기를 통과시켜 드랍렛을 형성한 후 중합하여 원하는 크기의 시드를 만들 수 있다. 이 때 원하는 크기의 입자를 만들기 위해 균질화 과정에서 압력을 조절하여 원하는 입자 사이즈의 입자를 제조한다. 균질화기를 통과하기 전 지용성 모노머 흡수 촉진제를 약 0.1~5kg/cm2 압력 하에서 5~60분 정도 충분한 교반을 시켜 주는 과정을 팽윤 촉진 공정이라고 한다. 이런 방법을 통해 생성된 라텍스는 액적의 안정성이 높고 기존 유화제 조절 방식으로는 안정적으로 얻기 어려웠던 크기의 입자를 만들어 낼 수 있다. 또한 이렇게 제조된 시드를 사용하여 시드 유화중합을 실시할 경우 약 30분 이상 중합시간을 단축되는 효과를 얻을 수 있다.The present invention adjusts the pressure of the high pressure type homogenizer to produce particles. Firstly, the monomer absorption promoter, the subsidiary material and the monomer are added to the pre-mixing tank, followed by stirring for a predetermined time in a vacuum state. Thereafter, a high-pressure homogenizer may be used to form a droplet and then polymerized to produce a seed having a desired size. At this time, in order to make particles of a desired size, the pressure is adjusted in the homogenization process to produce particles of a desired particle size. Swelling is a process in which the fat-soluble monomer absorption accelerator is sufficiently stirred for about 5 to 60 minutes under a pressure of about 0.1 to 5 kg / cm 2 before passing through the homogenizer. The latex produced through this method is highly stable in droplets and can produce particles of a size that was difficult to obtain stably with conventional emulsion control methods. In addition, when the seed emulsion polymerization is carried out using the thus prepared seeds, the polymerization time may be shortened by about 30 minutes or more.

상기 염화비닐 단량체 100중량부를 기준으로 상기 중합수는 20 내지 150중량부, 상기 유화제는 0.1 내지 10중량부 및 상기 모노머 흡수 촉진제는 0.1 내지 10중량부를 투입한다.20 to 150 parts by weight of the polymerized water, 0.1 to 10 parts by weight of the emulsifier and 0.1 to 10 parts by weight of the monomer absorption accelerator are added based on 100 parts by weight of the vinyl chloride monomer.

상기 모노머 흡수 촉진제는 지방족 고급 알코올을 사용할 수 있다.The monomer absorption promoter may use an aliphatic higher alcohol.

상기 유화제는 소디움 라우릴 설페이트(sodium lauryl sulfate, SLS), 소디움 도데실 벤젠 술포네이트(sodium dodecyl benzene sulfonate, SDBS), 소디움 도데실 알킬설페이트(sodium dodecyl alkylsulfate, SDS), 암모늄 라우릴 설페이트(ammonium lauryl sulfate, ALS), 소디움 세틸 스테아릴 설페이트(sodium cetyl stearyl sulfate), 소디움 라우릴 에테르 설페이트(sodium lauryl ether sulfate, SLES) 및 석시네이트(succinate)로 이루어진 군으로부터 1종 이상 선택될 수 있으나, 구체적으로는 소디움 도데실 벤젠 술포네이트를 사용하나, 이에 한정되는 것은 아니다.The emulsifier is sodium lauryl sulfate (SLS), sodium dodecyl benzene sulfonate (SDBS), sodium dodecyl alkylsulfate (SDS), ammonium lauryl sulfate sulfate, ALS), sodium cetyl stearyl sulfate, sodium lauryl ether sulfate (SLES) and succinate, but may be selected from the group consisting of Uses sodium dodecyl benzene sulfonate, but is not limited thereto.

상기 팽윤 촉진 단계는 0.1 내지 5kg/cm2 압력 하에서 5 내지 60분 동안 교반하여 진행된다.The swelling promotion step is performed by stirring for 5 to 60 minutes under 0.1 to 5kg / cm 2 pressure.

또한, 상기 균질화 단계에서의 고압형 균질화기의 압력은 균질화기의 가용압력이 0~2000psi일 경우, 200 내지 1800psi일 수 있고, 구체적으로는 400 내지 1600psi일 수 있다. 균질화기의 적정 압력은 균질화기의 용량에 따라 달라질 수 있으며, 구체적으로는 고압형 균질화기의 압력은 균질화기 가용압력의 10% 내지 90%일 수 있으며, 보다 구체적으로는 20% 내지 80%일 수 있다.In addition, the pressure of the high pressure homogenizer in the homogenizing step may be 200 to 1800 psi, specifically 400 to 1600 psi, when the available pressure of the homogenizer is 0 to 2000 psi. The proper pressure of the homogenizer may vary depending on the capacity of the homogenizer. Specifically, the pressure of the high pressure homogenizer may be 10% to 90% of the available pressure of the homogenizer, and more specifically 20% to 80%. Can be.

낮은 압력에서는 균일하고 일정한 사이즈의 액적을 얻어내기가 힘들고 안정성이 다소 떨어지는 반면에 높은 압력에서는 안정성은 높아지나 입자의 분포가 좁아지게 된다. 이는 균질화기의 용량에 따라서 범위가 정해지며, 특정 범위의 압력이 특정한 효과를 갖는 것은 아니다.At low pressures, it is difficult to obtain uniform and uniform droplets and the stability is somewhat lower, while at higher pressures the stability is higher but the particle distribution is narrower. It is ranged according to the capacity of the homogenizer, and a particular range of pressures does not have a particular effect.

그리고 본 발명은 상기한 염화비닐계 라텍스의 제조방법에 의하여 제조된 염화비닐계 라텍스를 제공한다.And the present invention provides a vinyl chloride-based latex prepared by the method for producing a vinyl chloride-based latex.

또한, 본 발명은 상기한 염화비닐계 라텍스를 시드로 사용하여 시드유화중합을 실시하고 건조하여 분체상 페이스트 염화비닐 수지를 제조하는 분체상 페이스트 염화비닐 수지의 제조방법을 제공한다.
In addition, the present invention provides a method for producing a powdery paste vinyl chloride resin which is subjected to seed emulsion polymerization using the above-described vinyl chloride-based latex as a seed and dried to produce a powdery paste vinyl chloride resin.

이하 본 발명의 이해를 돕기 위하여 바람직한 실시예를 제시하나, 하기 실시예는 본 발명을 예시하는 것일 뿐 본 발명의 범주 및 기술사상 범위 내에서 다양한 변경 및 수정이 가능함은 당업자에게 있어서 명백한 것이며, 이러한 변경 및 수정이 첨부된 특허청구범위에 속하는 것도 당연한 것이다.It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Changes and modifications may fall within the scope of the appended claims.

[실시예][Example]

실시예Example 1 One

500L의 고압반응기에 탈이온수 97phm, 라우릴 퍼옥사이드 1.9phm, 파라퀴논(paraquinone) 0.001phm, 모노머 흡수 촉진제로 지방족 고급 알코올 2phm을 투입하고 반응기에 -730mmHg로 진공을 걸은 후 염화비닐 모노머 100phm과 소디움 도데실 벤젠 술포네이트(sodium dodecyl benzene sulfonate) 2phm을 투입한 후 2.5kg/cm2 압력에서 25분간 교반하였다.In a 500L high-pressure reactor, 97ph deionized water, 1.9phm lauryl peroxide, 0.001phm paraquinone, and 2phm aliphatic higher alcohol as monomer absorption promoter were put in a vacuum at -730mmHg, and then 100phm of vinyl chloride monomer and sodium 2phm of dodecyl benzene sulfonate was added thereto, followed by stirring for 25 minutes at 2.5 kg / cm 2 pressure.

이후 고압형 균질기에 1000psi의 고압으로 혼합물을 통과시켜 액적을 형성하였다. 균질화가 완료되면 반응기 온도를 40℃로 맞추고 중합을 실시하였다. 추가적으로 제조된 시드를 사용하여 53℃에서 시드 유화 중합하였다.
The mixture was then passed through a mixture at a high pressure of 1000 psi in a high pressure homogenizer to form droplets. Upon completion of homogenization, the reactor temperature was adjusted to 40 ° C. and polymerization was performed. Seed emulsion polymerization was performed at 53 ° C using additionally prepared seeds.

실시예Example 2 2

균질기 압력이 1600psi인 것을 제외하고는 실시예 1과 동일한 방법으로 염화비닐계 라텍스 및 분체상 페이스트 염화비닐 수지를 제조하였다.
Vinyl chloride-based latex and powdery paste vinyl chloride resin were prepared in the same manner as in Example 1 except that the homogenizer pressure was 1600 psi.

실시예Example 3 3

균질기 압력이 400psi인 것을 제외하고는 실시예 1과 동일한 방법으로 염화비닐계 라텍스 및 분체상 페이스트 염화비닐 수지를 제조하였다.
Vinyl chloride-based latex and powdery paste vinyl chloride resin were prepared in the same manner as in Example 1 except that the homogenizer pressure was 400 psi.

실시예Example 4 4

팽윤촉진 공정을 실시하지 않은 것을 제외하고는 실시예 1과 동일한 방법으로 염화비닐계 라텍스 및 분체상 페이스트 염화비닐 수지를 제조하였다.
A vinyl chloride-based latex and a powdery paste vinyl chloride resin were prepared in the same manner as in Example 1 except that the swelling promotion process was not performed.

비교예Comparative example 1 One

팽윤 촉진 공정을 실시하지 않고 유화제 투입량이 0.5phm인 것을 제외하고는 실시예 1과 동일한 방법으로 염화비닐계 라텍스 및 분체상 페이스트 염화비닐 수지를 제조하였다.
A vinyl chloride-based latex and a powdery paste vinyl chloride resin were prepared in the same manner as in Example 1 except that the emulsifier input amount was 0.5 phm without performing the swelling promotion step.

[시험예][Test Example]

상기 실시예 및 비교예에서 제조한 염화비닐계 중합체의 평균입경 및 스케일 양은 아래와 같이 측정하였다.The average particle diameter and scale amount of the vinyl chloride polymer prepared in Examples and Comparative Examples were measured as follows.

* 평균입경: 제조된 염화비닐 라텍스의 입경을 Microtrac사 nanotrac150을 이용하여 측정하였다.* Average particle size: The particle size of the prepared vinyl chloride latex was measured using a Microtrac nanotrac150.

* 스케일 양: 중합 후 스트레이너에 걸리는 물질의 무게를 대략적으로 측정하였다.Scale amount: The weight of the material applied to the strainer after polymerization was measured approximately.

실시예 1Example 1 실시예 2Example 2 실시예 3Example 3 실시예 4Example 4 비교예 1Comparative Example 1 비교예 2Comparative Example 2 균질화 압력(psi)Homogenization Pressure (psi) 10001000 16001600 400400 10001000 10001000 10001000 팽윤 촉진 공정Swelling Promotion Process 실시practice 실시practice 실시practice 실시practice 미실시Absenteeism 미실시Absenteeism 유화제 양(phm)Emulsifier amount (phm) 22 22 22 0.50.5 22 0.50.5 입경(㎛)Particle size (탆) 0.720.72 0.510.51 1.401.40 0.820.82 0.780.78 -- 스케일(g)Scale (g) 250250 220220 240240 450450 650650 응집Cohesion 시드유화중합 시간(분)Seed emulsion polymerization time (min) 275275 -- -- -- 308308 --

상기 표 1에서 보는 바와 같이, 실시예 1 내지 4를 팽윤 촉진 공정을 실시하지 않은 비교예 1과 비교하여 보면, 스케일이 많이 발생하지 않아 액적의 안정성이 높고 기존 유화제 조절 방식으로는 안정적으로 얻기 어려웠던 크기의 입자를 만들어 낼 수 있었다. 또한, 이렇게 제조된 시드를 사용하여 시드 유화중합을 실시할 경우 약 30분 정도 중합시간을 단축되는 효과를 얻을 수 있었다.
As shown in Table 1, when comparing Examples 1 to 4 with Comparative Example 1 that did not perform the swelling promotion process, the scale does not occur a lot, the stability of the droplets is high and it was difficult to obtain stable with the existing emulsifier control method It could produce particles of size. In addition, when the seed emulsion polymerization was carried out using the seeds thus prepared, the polymerization time was reduced by about 30 minutes.

Claims (8)

중합수, 염화비닐 단량체, 유화제 및 모노머 흡수 촉진제를 프리-믹싱 탱크에 투입하고 교반시켜 혼합물을 얻는 팽윤 촉진 단계;
상기 혼합물을 고압형 균질화기를 통과시키는 균질화 단계; 및
상기 균질화된 혼합물을 반응기에서 중합시키는 중합 단계;를
포함하여 이루어지는 것을 특징으로 하는 염화비닐계 라텍스의 제조방법.
A swelling promoting step of introducing the polymerized water, the vinyl chloride monomer, the emulsifier and the monomer absorption promoter into the pre-mixing tank and stirring to obtain a mixture;
A homogenization step of passing the mixture through a high pressure type homogenizer; And
A polymerization step of polymerizing the homogenized mixture in a reactor;
Method for producing a vinyl chloride-based latex comprising a.
제 1항에 있어서,
상기 염화비닐 단량체 100중량부를 기준으로 상기 중합수는 20 내지 150중량부, 상기 유화제는 0.1 내지 10중량부 및 상기 모노머 흡수 촉진제는 0.1 내지 10중량부를 투입하는 것을 특징으로 하는 염화비닐계 라텍스의 제조방법.
The method of claim 1,
20 to 150 parts by weight of the polymerized water, 0.1 to 10 parts by weight of the emulsifier and 0.1 to 10 parts by weight of the monomer absorption accelerator, are prepared based on 100 parts by weight of the vinyl chloride monomer. Way.
제 1항에 있어서,
상기 모노머 흡수 촉진제는 지방족 고급 알코올인 것을 특징으로 하는 염화비닐계 라텍스의 제조방법.
The method of claim 1,
The monomer absorption promoter is a method of producing a vinyl chloride-based latex, characterized in that the aliphatic higher alcohol.
제 1항에 있어서,
상기 유화제는 소디움 라우릴 설페이트(sodium lauryl sulfate, SLS), 소디움 도데실 벤젠 술포네이트(sodium dodecyl benzene sulfonate, SDBS), 소디움 도데실 알킬설페이트(sodium dodecyl alkylsulfate, SDS), 암모늄 라우릴 설페이트(ammonium lauryl sulfate, ALS), 소디움 세틸 스테아릴 설페이트(sodium cetyl stearyl sulfate), 소디움 라우릴 에테르 설페이트(sodium lauryl ether sulfate, SLES) 및 석시네이트(succinate)로 이루어진 군으로부터 1종 이상 선택되는 것을 특징으로 하는 염화비닐계 수지의 제조방법.
The method of claim 1,
The emulsifier is sodium lauryl sulfate (SLS), sodium dodecyl benzene sulfonate (SDBS), sodium dodecyl alkylsulfate (SDS), ammonium lauryl sulfate sulfate, ALS), sodium cetyl stearyl sulfate, sodium lauryl ether sulfate (SLES) and succinate, characterized in that at least one selected from the group consisting of Method for producing vinyl resin.
제 1항에 있어서,
상기 팽윤 촉진 단계는 0.1 내지 5kg/cm2 압력 하에서 5 내지 60분 동안 교반하는 것을 특징으로 하는 염화비닐계 수지의 제조방법.
The method of claim 1,
The swelling promoting step is a method for producing a vinyl chloride-based resin, characterized in that for 5 to 60 minutes stirring under pressure of 0.1 to 5kg / cm 2 .
제 1항에 있어서,
상기 균질화 단계에서의 고압형 균질화기의 압력은 균질화기 가용압력의 10% 내지 90%인 것을 특징으로 하는 염화비닐계 수지의 제조방법.
The method of claim 1,
The pressure of the high pressure homogenizer in the homogenization step is a method for producing a vinyl chloride-based resin, characterized in that 10% to 90% of the available pressure of the homogenizer.
제 1항에 의한 염화비닐계 라텍스의 제조방법에 의하여 제조된 염화비닐계 라텍스.Vinyl chloride-based latex prepared by the method for producing a vinyl chloride-based latex according to claim 1. 제 7항에 의한 염화비닐계 라텍스를 시드로 사용하여 시드유화중합을 실시하고 건조하여 분체상 페이스트 염화비닐 수지를 제조하는 분체상 페이스트 염화비닐 수지의 제조방법.
A method of producing a powdery paste vinyl chloride resin, wherein the seed emulsion polymerization is carried out using the vinyl chloride latex according to claim 7 and dried to prepare a powdery paste vinyl chloride resin.
KR1020120063650A 2012-02-06 2012-06-14 Method of preparing vinyl chloride latex having high stability KR101498339B1 (en)

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Publication number Priority date Publication date Assignee Title
CN103936894A (en) * 2014-03-15 2014-07-23 新疆天业(集团)有限公司 Material homogenization method in production of polyvinyl chloride paste resin

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JPH0730199B2 (en) * 1991-04-26 1995-04-05 日本ゼオン株式会社 Method for producing vinyl chloride resin foam
KR20100042159A (en) * 2008-10-15 2010-04-23 주식회사 엘지화학 Seed of vinyl chloride with large diameter, method of preparation of the same and vinylchloride resin made by the same
KR101154461B1 (en) * 2012-02-03 2012-06-13 주식회사 엘지화학 Method for making vinyl chloride resin with enhanced stability in high temperature

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103936894A (en) * 2014-03-15 2014-07-23 新疆天业(集团)有限公司 Material homogenization method in production of polyvinyl chloride paste resin
CN103936894B (en) * 2014-03-15 2016-08-24 天伟化工有限公司 The method of matter homogenizing in the production of a kind of PVC paste resin

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