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Compound clarifying agent, preparation method thereof and method for preparing E glass fiber by adopting compound clarifying agent

A technology of compounding clarifying agent and glass fiber, applied in glass manufacturing equipment, manufacturing tools and other directions, can solve the problems of affecting the uniformity of batch materials, mixed powder transportation, expensive cerium oxide, and increasing formula cost, etc., and achieves good clarifying effect. Prolonged clarification time, good effect

Active Publication Date: 2013-04-24
NEIJIANG HUAYUAN ELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the glass fiber industry in my country mainly adopts the pool kiln wire drawing production process. When this process is used to produce alkali-free glass fiber, the main clarifier raw material is a single clarifier such as Glauber's salt or cerium oxide. The characteristics determine its strong water absorption, and it is easy to absorb moisture and agglomerate during use, which affects the uniformity of the batch material and the transportation of the mixed powder. At the same time, the melting temperature is required to be very stable. It is easy to produce "nitrate water" in the medium and affect the quality of melting, and the price of cerium oxide is expensive, which increases the cost of the formula

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation of composite clarifying agent: 10 parts of cerium oxide, 20 parts of antimony oxide, 3 parts of lepidolite and 60 parts of calcium sulfate were calcined at 700°C for 3 hours, then pulverized and ground, and the ground cerium oxide and antimony oxide , lepidolite and calcium sulfate are uniformly mixed to obtain a composite clarifying agent;

[0024] In this composite clarifying agent, CeO 2 ≥0.5%, Li 2 O≥0.15%, Sb 2 o 3 ≥1.00%, SO 3 18%~30%, PbO≤120PPm, As≤40PPm, P 2 o 5 ≤200PPm,H 2 O≤1.0, and the particle size sieve residue of the composite clarifier through a 100 mesh sieve≤10%. The composite clarifying agent has the following characteristics: ①It is often suitable for glass melting under oxidative atmosphere conditions; ②It can effectively prevent the phenomenon of "exposure" yellowing of glass and the phenomenon of glass secondary processing and reduction blackening; ③It can be used without strong oxidant It can effectively reduce the amount of n...

Embodiment 2

[0038] Preparation of composite clarifying agent: 10 parts of cerium oxide, 20 parts of antimony oxide, 3 parts of lepidolite and 60 parts of calcium sulfate were calcined at 800°C for 4 hours, and then pulverized and ground, and the ground cerium oxide and antimony oxide , lepidolite and calcium sulfate are uniformly mixed to obtain a composite clarifying agent;

[0039] In this composite clarifying agent, CeO 2 ≥0.5%, Li 2 O≥0.15%, Sb 2 o 3 ≥1.00%, SO 3 18%~30%, PbO≤120PPm, As≤40PPm, P 2 o 5 ≤200PPm,H 2 O≤1.0, and the particle size sieve residue of the composite clarifier passing through a 100 mesh sieve is ≤10%. The composite clarifying agent has the following characteristics: ①It is often suitable for glass melting under oxidizing atmosphere; ②It can effectively prevent the yellowing phenomenon of glass "exposed" and the reduction and blackening of glass after secondary processing; ③It can also play a clarifying effect without the use of strong oxidants. , can effe...

Embodiment 3

[0053] Preparation of composite clarifier: 10 parts of cerium oxide, 20 parts of antimony oxide, 3 parts of lepidolite and 60 parts of calcium sulfate were calcined at 900°C for 2 hours, then pulverized and ground, and the ground cerium oxide and antimony oxide , lepidolite and calcium sulfate are uniformly mixed to obtain a composite clarifying agent;

[0054] In this composite clarifying agent, CeO 2 ≥0.5%, Li 2 O≥0.15%, Sb 2 o 3 ≥1.00%, SO 3 18%~30%, PbO≤120PPm, As≤40PPm, P 2 o 5 ≤200PPm,H 2 O≤1.0, and the particle size sieve residue of the composite clarifier passing through a 100 mesh sieve is ≤10%. The composite clarifying agent has the following characteristics: ①It is often suitable for glass melting under oxidizing atmosphere; ②It can effectively prevent the yellowing phenomenon of glass "exposed" and the reduction and blackening of glass after secondary processing; ③It can also play a clarifying effect without the use of strong oxidants. , can effectively red...

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Abstract

The invention discloses compound clarifying agent and a preparation method thereof. The compound clarifying agent is prepared by compounding 10 parts of cerium oxide, 20 parts of antimony oxide, 3 parts of lepidolite and 60 parts of calcium sulfate. The compound clarifying agent is compounded by the cerium oxide, the antimony oxide, the lepidolite and the calcium sulfate, overcomes the difficulty of high cost caused by adopting single cerium oxide, antimony oxide and lepidolite as the clarifying agent, and has low poison and better clarifying effect; the invention further discloses a method for preparing E glass fiber by adopting the compound clarifying agent; and the method uses the gradual clarifying theory of the compound clarifying agent to gradually decompose and clarify when glass is molten, so that the clarifying capacity is always in a vigorous state, and the E glass fiber with few impurities and good quality is obtained.

Description

technical field [0001] The invention belongs to the technical field of alkali-free glass fibers, and in particular relates to a compound clarifying agent for preparing E glass fibers and a method for preparing E glass fibers by using the compound clarifying agent. Background technique [0002] E-glass fiber, R 2 O(K 2 O+Na 2 O) ≤ 0.8%, is a kind of aluminum borosilicate composition, chemical stability, electrical insulation performance and strength are very good, mainly used as electrical insulation materials, reinforced materials of glass fiber reinforced plastics, tire cords and composite cable supports, etc. At present, my country's glass fiber industry mainly adopts the pool kiln wire drawing production process. When this process is used to produce alkali-free glass fiber, the main clarifier raw material is a single clarifier such as Glauber's salt or cerium oxide. The characteristics determine its strong water absorption, and it is easy to absorb moisture and agglomer...

Claims

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Application Information

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IPC IPC(8): C03C1/00C03C6/06C03B37/022
Inventor 刘钢刘术明陈锐倪海威涂雪敏孙智
Owner NEIJIANG HUAYUAN ELECTRONICS MATERIALS
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