KR980001824A - Precipitated Silica for Silicone Rubber - Google Patents

Precipitated Silica for Silicone Rubber Download PDF

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Publication number
KR980001824A
KR980001824A KR1019960021714A KR19960021714A KR980001824A KR 980001824 A KR980001824 A KR 980001824A KR 1019960021714 A KR1019960021714 A KR 1019960021714A KR 19960021714 A KR19960021714 A KR 19960021714A KR 980001824 A KR980001824 A KR 980001824A
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KR
South Korea
Prior art keywords
precipitated silica
silicone rubber
temperature
added
sodium silicate
Prior art date
Application number
KR1019960021714A
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Korean (ko)
Inventor
최형섭
신현철
황규민
Original Assignee
이효봉
코프랑 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 이효봉, 코프랑 주식회사 filed Critical 이효봉
Priority to KR1019960021714A priority Critical patent/KR980001824A/en
Publication of KR980001824A publication Critical patent/KR980001824A/en

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

실리콘 고무 중전제용 침강실리카의 제조방법에 관한 것으로서, 제일 먼저 반응기에 물을 투입하고 소정온도로 승온시킨 후 소정밀도의 규산소다와 황산을 동시에 투입하되 80~95℃의 온도범위에서 pH 9~10로 조절하여 90~120분만 반응시킴으로서 생산수율이 좋고, 고무에 충전시 백탁현상과 황변현상이 나타나지 않고 분산성 및 인장강도가 높고, 가스성 및 선형 압축율이 우수한 침강실리카를 얻는 침강실리카 제조방법이다.It relates to a method for producing precipitated silica for silicon rubber heavy-agent. First of all, water is added to the reactor and the temperature is raised to a predetermined temperature. Then, sodium silicate and sulfuric acid having a predetermined density are simultaneously introduced, and the pH is 9 to 10 at a temperature range of 80 to 95 ° C. It is a method of producing precipitated silica that obtains precipitated silica with high dispersibility and tensile strength and excellent gaseous and linear compressibility without appearing turbidity and yellowing when filled with rubber. .

Description

실리콘 고무용 침강 실리카Precipitated Silica for Silicone Rubber

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (2)

반응기에 제일 먼저 물을 투입하고 80~95℃ 범위의 반응온도로 승온시킨 후 밀도가 1.10~1.20인 규산소다와 밀도가 1.030~1.100인 황산을 pH 9~10의 범위로 조절하면서 동시에 첨가하여 90~120분간 반응시킴을 특징으로 하는 실리콘 고무 충전제용 침강실리카의 제조방법.First, water was added to the reactor, and the temperature was raised to a reaction temperature in the range of 80 to 95 ° C. Sodium silicate having a density of 1.10 to 1.20 and sulfuric acid having a density of 1.030 to 1.100 were added at the same time while adjusting the pH to a range of 9 to 10. A method for producing precipitated silica for a silicone rubber filler, characterized in that the reaction for ~ 120 minutes. 제1항에 있어서, 규산소다의 구성성분 SiO2와 Na2O의 조성비율을 중량비로 3.3~3.5:1로 함을 특징으로 하는 실리콘 고무 충전제용 침강실리카의 제조방법.The method for producing precipitated silica for a silicone rubber filler according to claim 1, wherein the composition ratio of the constituents SiO 2 and Na 2 O of sodium silicate is 3.3 to 3.5: 1 by weight. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960021714A 1996-06-15 1996-06-15 Precipitated Silica for Silicone Rubber KR980001824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960021714A KR980001824A (en) 1996-06-15 1996-06-15 Precipitated Silica for Silicone Rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960021714A KR980001824A (en) 1996-06-15 1996-06-15 Precipitated Silica for Silicone Rubber

Publications (1)

Publication Number Publication Date
KR980001824A true KR980001824A (en) 1998-03-30

Family

ID=66287760

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960021714A KR980001824A (en) 1996-06-15 1996-06-15 Precipitated Silica for Silicone Rubber

Country Status (1)

Country Link
KR (1) KR980001824A (en)

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