CN109467875A - 一种用于制备玻璃纤维复合材料的工艺 - Google Patents

一种用于制备玻璃纤维复合材料的工艺 Download PDF

Info

Publication number
CN109467875A
CN109467875A CN201811256958.1A CN201811256958A CN109467875A CN 109467875 A CN109467875 A CN 109467875A CN 201811256958 A CN201811256958 A CN 201811256958A CN 109467875 A CN109467875 A CN 109467875A
Authority
CN
China
Prior art keywords
glass fiber
glass
compound material
fiber compound
parts
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201811256958.1A
Other languages
English (en)
Inventor
顾亚新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201811256958.1A priority Critical patent/CN109467875A/zh
Publication of CN109467875A publication Critical patent/CN109467875A/zh
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/04Non-macromolecular additives inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C09J4/06Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B2037/1253Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives curable adhesive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B2038/0052Other operations not otherwise provided for
    • B32B2038/0076Curing, vulcanising, cross-linking
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2361/00Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2361/04Condensation polymers of aldehydes or ketones with phenols only
    • C08J2361/06Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2401/00Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2401/08Cellulose derivatives
    • C08J2401/26Cellulose ethers
    • C08J2401/28Alkyl ethers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2405/00Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2463/00Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/49Phosphorus-containing compounds
    • C08K5/51Phosphorus bound to oxygen
    • C08K5/52Phosphorus bound to oxygen only
    • C08K5/524Esters of phosphorous acids, e.g. of H3PO3
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
    • C08K7/02Fibres or whiskers
    • C08K7/04Fibres or whiskers inorganic
    • C08K7/14Glass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Reinforced Plastic Materials (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

本发明公开了一种用于制备玻璃纤维复合材料的工艺,它包括以下步骤:步骤1:首先将玻璃拉制成玻璃丝并纺成纱,然后通过织布机制得玻璃纤维布。有益效果在于:通过在玻璃纤维复合材料的基体组分中增添甲基丙烯酸缩水甘油酯,增强了玻璃纤维复合材料的挤出成型性,并明显改善玻璃纤维复合材料与金属的粘接力,通过在玻璃纤维复合材料的基体组分加入双季戊四醇二亚磷酸酯,可在环氧树脂的基础上进一步增强玻璃纤维复合材料的耐高温性,可使得玻璃纤维复合材料在高温状态下更加的稳定。

Description

一种用于制备玻璃纤维复合材料的工艺
技术领域
本发明涉及到玻璃纤维复合材料制备技术领域,本发明涉及一种用于制备玻璃纤维复合材料的工艺。
背景技术
玻璃纤维是一种性能优异的无机非金属材料,种类繁多,优点是绝缘性好、耐热性强、抗腐蚀性好,机械强度高,但缺点是性脆,耐磨性较差。为了满足不同领域的需要,人们将玻璃纤维的优点与其它材料的优点相结合发明了玻璃纤维复合材料,然而现有玻璃纤维复合材料多只是通过其基体成分中的环氧树脂来实现保持材料的耐高温性,在高温状态下其稳定性相对于另外采用双季戊四醇二亚磷酸酯作为机体组分的玻璃纤维复合材料而言较低,且现有的玻璃纤维复合材料的基体组分中缺少甲基丙烯酸缩水甘油酯,使得复合材料的挤出成型性以及与金属的粘接力一般,进而造成复合材料使用不便,因此急需一种用于制备玻璃纤维复合材料的工艺来解决现有问题。
发明内容
本发明的目的就在于为了解决上述问题而提供一种用于制备玻璃纤维复合材料的工艺。
本发明通过以下技术方案来实现上述目的:
一种用于制备玻璃纤维复合材料的工艺,它包括以下步骤:
步骤1:首先将玻璃拉制成玻璃丝并纺成纱,然后通过织布机制得玻璃纤维布;
步骤2:将步骤1得到的玻璃纤维布放置于浆料中浸泡3个小时,所述浆料是由以下重量份的组分制成的:酚醛树脂5份,云母粉0.2~0.3份,甲基丙烯酸缩水甘油酯1.8份,瓜耳胶0.5份,双季戊四醇二亚磷酸酯0.4份,羧甲基淀粉钠0.03份,水100份;
步骤3:所述步骤4中的粘接剂是由以下重量份的组分制成:甲基丙烯酸甲酯2.1份,烷基苯聚醚磺酸钠1.3份,过硫酸铵0.2份,碳酸氢钠0.1分,水100份;
步骤4:然后将玻璃纤维细丝均匀铺设在由步骤2和步骤3所得的玻璃纤维布上,并通过粘接剂将玻璃纤维细丝与所述玻璃纤维布进行粘接,并通过紫外固化的方式使玻璃纤维细丝与所述玻璃纤维布成型在一起。
进一步的,所述步骤2中所述浆料的配制方法是:首先将配方量的羧甲基淀粉钠加入到水中,搅拌24小时,然后再放入云母粉、瓜耳胶、甲基丙烯酸缩水甘油酯进行搅拌,搅拌均匀后再加入酚醛树脂和双季戊四醇二亚磷酸酯,直到浆料搅拌均匀为止。
进一步的,所述步骤4中的粘接剂是由以下重量份的组分制成:甲基丙烯酸甲酯2.1份,烷基苯聚醚磺酸钠1.3份,过硫酸铵0.2份,碳酸氢钠0.1分,水100份。
进一步的,所述步骤4中粘接剂的使用方法是:将碳酸氢钠溶于1/5的水中,然后边搅拌边加入加入甲基丙烯酸甲酯、烷基苯聚醚磺酸钠和过硫酸铵,并在50—60度的水中搅拌2小时,接着加入剩余的水,搅拌均匀后便可得到粘接剂乳液,最后将乳液均匀涂覆使其紧贴于所述步骤4中的玻璃纤维细丝与所述玻璃纤维布结合的缝隙中,再经过烘干固化处理,便可将玻璃纤维细丝与所述玻璃纤维布牢固结合。
进一步的,所述步骤4中紫外固化的时间为4小时。
玻璃纤维复合材料制备工艺的具体实施步骤:在制备之前首先将玻璃纤维经拉制成细丝,并将玻璃纤维细丝防止成玻璃布,接着将玻璃布放置于浆料中浸泡3个小时,接着将玻璃纤维布取出,并在起上均匀铺设玻璃纤维丝,并通过粘接剂将其进行粘接,并通过紫外固定化的方式将其进行固定,便可制得玻璃纤维复合材料。
本发明的有益效果在于:
通过在玻璃纤维复合材料的基体组分中增添甲基丙烯酸缩水甘油酯,增强了玻璃纤维复合材料的挤出成型性,并明显改善玻璃纤维复合材料与金属的粘接力,通过在玻璃纤维复合材料的基体组分加入双季戊四醇二亚磷酸酯,可在环氧树脂的基础上进一步增强玻璃纤维复合材料的耐高温性,可使得玻璃纤维复合材料在高温状态下更加的稳定。
具体实施方式
下面对本发明作进一步说明:
一种用于制备玻璃纤维复合材料的工艺,它包括以下步骤:
步骤1:首先将玻璃拉制成玻璃丝并纺成纱,然后通过织布机制得玻璃纤维布;
步骤2:将步骤1得到的玻璃纤维布放置于浆料中浸泡3个小时,所述浆料是由以下重量份的组分制成的:酚醛树脂5份,云母粉0.2~0.3份,甲基丙烯酸缩水甘油酯1.8份,瓜耳胶0.5份,双季戊四醇二亚磷酸酯0.4份,羧甲基淀粉钠0.03份,水100份;
步骤3:所述步骤4中的粘接剂是由以下重量份的组分制成:甲基丙烯酸甲酯2.1份,烷基苯聚醚磺酸钠1.3份,过硫酸铵0.2份,碳酸氢钠0.1分,水100份;
步骤4:然后将玻璃纤维细丝均匀铺设在由步骤2和步骤3所得的玻璃纤维布上,并通过粘接剂将玻璃纤维细丝与所述玻璃纤维布进行粘接,并通过紫外固化的方式使玻璃纤维细丝与所述玻璃纤维布成型在一起。
本实施例中,所述步骤2中所述浆料的配制方法是:首先将配方量的羧甲基淀粉钠加入到水中,搅拌24小时,然后再放入云母粉、瓜耳胶、甲基丙烯酸缩水甘油酯进行搅拌,搅拌均匀后再加入酚醛树脂和双季戊四醇二亚磷酸酯,直到浆料搅拌均匀为止。
本实施例中,所述步骤4中的粘接剂是由以下重量份的组分制成:甲基丙烯酸甲酯2.1份,烷基苯聚醚磺酸钠1.3份,过硫酸铵0.2份,碳酸氢钠0.1分,水100份。
本实施例中,所述步骤4中粘接剂的使用方法是:将碳酸氢钠溶于1/5的水中,然后边搅拌边加入加入甲基丙烯酸甲酯、烷基苯聚醚磺酸钠和过硫酸铵,并在50—60度的水中搅拌2小时,接着加入剩余的水,搅拌均匀后便可得到粘接剂乳液,最后将乳液均匀涂覆使其紧贴于所述步骤4中的玻璃纤维细丝与所述玻璃纤维布结合的缝隙中,再经过烘干固化处理,便可将玻璃纤维细丝与所述玻璃纤维布牢固结合。
本实施例中,所述步骤4中紫外固化的时间为4小时。
玻璃纤维复合材料制备工艺的具体实施步骤:在制备之前首先将玻璃纤维经拉制成细丝,并将玻璃纤维细丝防止成玻璃布,接着将玻璃布放置于浆料中浸泡3个小时,接着将玻璃纤维布取出,并在起上均匀铺设玻璃纤维丝,并通过粘接剂将其进行粘接,最后通过紫外固定化的方式将其进行固定,便可制得玻璃纤维复合材料。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (5)

1.一种用于制备玻璃纤维复合材料的工艺,其特征在于:它包括以下步骤:
步骤1:首先将玻璃拉制成玻璃丝并纺成纱,然后通过织布机制得玻璃纤维布;
步骤2:将步骤1得到的玻璃纤维布放置于浆料中浸泡3个小时,所述浆料是由以下重量份的组分制成的:酚醛树脂5份,云母粉0.2~0.3份,甲基丙烯酸缩水甘油酯1.8份,瓜耳胶0.5份,双季戊四醇二亚磷酸酯0.4份,羧甲基淀粉钠0.03份,水100份;
步骤3:将步骤2中浸染后的玻璃纤维布上气泡挤出,并将其压制成型;
步骤4:然后将玻璃纤维细丝均匀铺设在由步骤2和步骤3所得的玻璃纤维布上,并通过粘接剂将玻璃纤维细丝与所述玻璃纤维布进行粘接,并通过紫外固化的方式使玻璃纤维细丝与所述玻璃纤维布成型在一起。
2.根据权利要求1所述的一种用于制备玻璃纤维复合材料的工艺,其特征在于:所述步骤2中所述浆料的配制方法是:首先将配方量的羧甲基淀粉钠加入到水中,搅拌24小时,然后再放入云母粉、瓜耳胶、甲基丙烯酸缩水甘油酯进行搅拌,搅拌均匀后再加入酚醛树脂和双季戊四醇二亚磷酸酯,直到浆料搅拌均匀为止。
3.根据权利要求1所述的一种用于制备玻璃纤维复合材料的工艺,其特征在于:所述步骤4中的粘接剂是由以下重量份的组分制成:甲基丙烯酸甲酯2.1份,烷基苯聚醚磺酸钠1.3份,过硫酸铵0.2份,碳酸氢钠0.1分,水100份。
4.根据权利要求1所述的一种用于制备玻璃纤维复合材料的工艺,其特征在于:所述步骤4中粘接剂的使用方法是:将碳酸氢钠溶于1/5的水中,然后边搅拌边加入加入甲基丙烯酸甲酯、烷基苯聚醚磺酸钠和过硫酸铵,并在50—60度的水中搅拌2小时,接着加入剩余的水,搅拌均匀后便可得到粘接剂乳液,最后将乳液均匀涂覆使其紧贴于所述步骤4中的玻璃纤维细丝与所述玻璃纤维布结合的缝隙中,再经过烘干固化处理,便可将玻璃纤维细丝与所述玻璃纤维布牢固结合。
5.根据权利要求1所述的一种用于制备玻璃纤维复合材料的工艺,其特征在于:所述步骤4中紫外固化的时间为4小时。
CN201811256958.1A 2018-10-26 2018-10-26 一种用于制备玻璃纤维复合材料的工艺 Pending CN109467875A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811256958.1A CN109467875A (zh) 2018-10-26 2018-10-26 一种用于制备玻璃纤维复合材料的工艺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811256958.1A CN109467875A (zh) 2018-10-26 2018-10-26 一种用于制备玻璃纤维复合材料的工艺

Publications (1)

Publication Number Publication Date
CN109467875A true CN109467875A (zh) 2019-03-15

Family

ID=65666320

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811256958.1A Pending CN109467875A (zh) 2018-10-26 2018-10-26 一种用于制备玻璃纤维复合材料的工艺

Country Status (1)

Country Link
CN (1) CN109467875A (zh)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106366522A (zh) * 2016-08-30 2017-02-01 海宁杰特玻纤布业有限公司 一种玻璃纤维‑合成树脂复合材料及其制备工艺
CN106868690A (zh) * 2017-02-21 2017-06-20 朱军 一种玻璃纤维复合材料的制备工艺

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106366522A (zh) * 2016-08-30 2017-02-01 海宁杰特玻纤布业有限公司 一种玻璃纤维‑合成树脂复合材料及其制备工艺
CN106868690A (zh) * 2017-02-21 2017-06-20 朱军 一种玻璃纤维复合材料的制备工艺

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
上海市教育委员会组编: "《高分子材料成型加工》", 31 May 2000 *
沙仁礼: "《非金属核工程材料》", 30 June 1996 *

Similar Documents

Publication Publication Date Title
CN105968718A (zh) 一种碳纤维/石墨烯/环氧树脂预浸料及碳纤维复合材料的制备方法
CN104870558B (zh) 用于粘合纤维材料的液体粘合剂组合物
CN106367979B (zh) 高耐磨玻璃纤维布及其制备方法
CN102099403B (zh) 增强的热固性聚合物复合物的制备方法
CN106366522B (zh) 一种玻璃纤维‑合成树脂复合材料及其制备工艺
CN107057283A (zh) 一种碳纤维增强树脂基复合材料及其制备方法
CN108755126A (zh) 电化学聚合改性表面处理碳纤维的方法及碳纤维复合材料
CN106398119B (zh) 一种纤维增强的生物树脂胶复合材料及其制备方法
CN102212965B (zh) 一种液态聚丙烯腈低聚物上浆剂及其在碳纤维上的应用
CN109082117A (zh) 一种具有低介电常数、低介电损耗并可中温固化的树脂基透波复合材料及其制备方法
CN108035143A (zh) 一种同时提高碳纤维环氧复合材料界面强度和韧性的方法
CN107620208A (zh) 氮化物纤维的浸润剂及其涂覆方法
CN108318302A (zh) 一种用于沥青基碳纤维复丝拉伸性能测试的制样方法
CN114133606A (zh) 高韧性热固性树脂基预浸料的制备方法及***
CN109467875A (zh) 一种用于制备玻璃纤维复合材料的工艺
CN108660864A (zh) 一种玻璃纤维复配碳纤维制备导电毡的方法
CN109898208A (zh) 一种高抗张力网布及其制作方法
CN107022903A (zh) 一种高导热碳纤维布及其制备方法
CN104264457A (zh) 一种新型无机纳米环保纺织浆料
CN108004781B (zh) 一种碳纤维用聚酰胺树脂基悬浮液上浆剂及其制备方法
CN105463846B (zh) 一种用于碳纤维的水溶性上浆剂组合物及其制备方法
CN106566208A (zh) 高韧性不导电轻型鱼竿用复合材料
CN110029523A (zh) 一种接枝纳米纤维增强碳纤维纸及其制备方法
CN106426975B (zh) 一种复合钓鱼竿的制备工艺
CN108547151A (zh) 一种水性环氧树脂碳纤维上浆剂

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190315