钢-聚丙烯纤维增强人造花岗岩复合材料的制备与性能

乔雪涛; 王朋; 闫存富; 许华威; 张力斌; 贾克; 杨泽; 吴隆

doi:10.13801/j.cnki.fhclxb.20191206.006

钢-聚丙烯纤维增强人造花岗岩复合材料的制备与性能

doi: 10.13801/j.cnki.fhclxb.20191206.006

中原工学院　机电学院，郑州 450007

基金项目: 河南省科技攻关项目（172102210586 ）；河南省科技攻关项目（182102210512 ）；河南省教育厅重点计划项目（13A460131）；河南省教育厅重点计划项目（14B460003）；郑州市科技攻关项目（153PKJGG132）

详细信息

通讯作者:
乔雪涛，博士，副教授，研究方向为精密制造技术与装备　E-mail：xtqiao@126.com

中图分类号: TG584；TB332
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- 被引次数: 0
出版历程
- 收稿日期: 2019-09-05
- 录用日期: 2019-11-05
- 网络出版日期: 2019-12-07
- 刊出日期: 2020-08-15

Preparation and properties of steel-polypropylene fiber reinforced artificial granite composite

School of Mechanical & Electronic Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China

摘要

摘要: 为深入研究钢-聚丙烯纤维增强人造花岗岩复合材料（钢-聚丙烯纤维/人造花岗岩）抗压、抗弯强度的影响因素，通过排水法实验研究了骨料堆积的空隙率，确定了骨料级配和实验指数q并对大量试件进行了抗压、抗弯强度测试，分析了钢-聚丙烯纤维/人造花岗岩复合材料各组分质量分数、骨料堆积空隙率等因素对钢-聚丙烯纤维/人造花岗岩复合材料抗压、抗弯强度的影响。实验结果表明：钢纤维与聚丙烯纤维能够明显增大钢-聚丙烯纤维/人造花岗岩复合材料的抗弯强度，随着钢-聚丙烯纤维质量分数的增加，钢-聚丙烯纤维/人造花岗岩复合材料试件的抗压和抗弯强度都逐渐增大；当钢纤维与聚丙烯纤维质量比为30∶1、钢-聚丙烯纤维质量分数为1.7wt%时，钢-聚丙烯纤维/人造花岗岩复合材料试件的抗压强度达到最大，当钢-聚丙烯纤维质量分数为1.9wt%时，钢-聚丙烯纤维/人造花岗岩试件的抗弯强度达到最大；黏结剂质量分数越接近骨料堆积空隙率，钢-聚丙烯纤维/人造花岗岩复合材料试件的抗压和抗弯强度越大，当骨料质量分数为80wt%、黏结剂质量分数为11wt%时，钢-聚丙烯纤维/人造花岗岩复合材料试件的抗压、抗弯强度同时达到最大。
- 钢-聚丙烯纤维 /
- 人造花岗岩 /
- 超精密机床床身 /
- 骨料级配 /
- 空隙率 /
- 复合材料 /
- 力学性能
Abstract: In order to further study the influence factors of compressive strength and flexural strength of steel-polypropylene fiber reinforced artificial granite (steel polypropylene fiber/artificial granite) composite, the void ratio of aggregate accumulation was studied by drainage method. The aggregate gradation and experimental index q were determined, and the compressive strength and flexural strength of a large number of specimens were tested. The influences of the mass fraction of each component and the void ratio of aggregate on the compressive strength and flexural strength of the steel polypropylene fiber/artificial granite composite were analyzed. The experimental results show that steel fibers and polypropylene fibers can significantly increase the flexural strength of steel polypropylene fiber/artificial granite composite. With the increase of the content of steel-polypropylene fibers, the compressive strength and flexural strength of the steel polypropylene fiber/artificial granite composite specimens increase gradually. When the mass ratio of steel fibers to polypropylene fibers is 30∶1 and the content of steel-polypropylene fiber is 1.7wt%, the compressive strength of the steel polypropylene fiber/artificial granite composite specimens increases gradually. The flexural strength of the steel polypropylene fiber/artificial granite specimens reaches the maximum when the steel-polypropylene fiber content is 1.9wt%. The closer the mass fraction of binder to the void ratio of the aggregate, the greater the compressive strength and flexural strength of the steel polypropylene fiber/artificial granite composite are. When the aggregate is 80wt% and the binder is 11wt%, the compressive strength and flexural strength of the steel polypropylene fiber/artificial granite specimen reach the maximum at the same time.
- steel-polypropylene fibers /
- artificial granite /
- ultra-precision machine tool bed /
- aggregate gradation /
- void fraction /
- composite /
- mechanical property

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图 1 四种骨料堆积模型

Figure 1. Four aggregate aggregation models

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图 2 实验指数q为0.33和0.5时骨料堆积的最大密实度曲线

Figure 2. Curves of maximum compactness of aggregate accumulation with experimental indexes q of 0.33 and 0.5

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图 3 各级骨料在实验指数q为0.44时的质量分数

Figure 3. Mass fractions of aggregate with different sizes in the total mass of aggregate when the experimental index q is 0.44

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图 4 排水法实验检测骨料堆积空隙率

Figure 4. Test of aggregate void ratio by drainage method

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图 5 排水法实验流程

Figure 5. Flow chart of drainage experiment

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图 6 钢-聚丙烯纤维/人造花岗岩复合材料制备流程

Figure 6. Steel polypropylene fiber/artificial granite composite specimen making process

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图 7 钢-聚丙烯纤维/人造花岗岩复合材料各组分材料

Figure 7. Different component materials of steel polypropylene fiber/artificial granite composite

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图 8 钢-聚丙烯纤维/人造花岗岩复合材料成型试件

Figure 8. Formed steel polypropylene fiber/artificial granite composite specimens

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图 9 钢-聚丙烯纤维/人造花岗岩复合材料试件抗压强度测试

Figure 9. Compressive strength test of steel polypropylene fiber/artificial granite composite specimen

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图 10 钢-聚丙烯纤维/人造花岗岩复合材料试件抗弯强度测试

Figure 10. Bending strength test of steel polypropylene fiber/artificial granite composite specimen

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图 11 钢-聚丙烯纤维/人造花岗岩复合材料试件的抗弯测试加载方式

Figure 11. Loading mode of bending test of steel polypropylene fiber/artificial granite composite specimen

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图 12 钢-聚丙烯纤维/人造花岗岩复合材料试件在不同原料配比下的抗压强度

Figure 12. Compressive strengths of steel polypropylene fiber/artificial granite composite specimens with different proportions of raw materials

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图 13 钢-聚丙烯纤维/人造花岗岩复合材料试件在不同原料配比下的抗弯强度

Figure 13. Bending strengths of steel polypropylene fiber/artificial granite composite specimens with different proportions of raw materials

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图 14 钢纤维在树脂基体中形貌的SEM图像

Figure 14. SEM images of steel fiber morphology in resin matrix

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表 1 HORSFIELD最密填充数据

Table 1. HORSFIELD's closest filling data

Filling state	Particle size of aggregate	Relative number of aggregates	Void fraction
First filling	D	1	0.2595
Second filling	d=0.414D	1	0.207
Notes: D—Primary aggregate size; d—Diameter of the sieve hole.

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表 2 不同骨料堆积模式对应的次级骨料粒径

Table 2. Secondary aggregate size corresponding to different aggregate accumulation models

Aggregate accumulation model	Three- circle	Two circles and one line	One circle and two lines	Three- line
Secondary aggregate size	0.15D	0.2D	0.24D	0.29D

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表 3 五种筛孔直径

Table 3. Five sieve hole diameters

Controlling sizes of sieve hole	d₁/mm	d₂/mm	d₃/mm	d₄/mm	d₅/mm
Size	0.11	0.52	2.36	4.75	10.00

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表 4 两种纤维主要性能指标

Table 4. Main performance indicators of two fibers

Fiber type	Diameter/ μm	Tensile strength/ MPa	Modulus of elasticity/ GPa	Density/ （g·cm⁻³）
Steel fiber	500	3 000	210	7.8
Polypropylene fiber	35	700	4.2	0.9

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表 5 钢-聚丙烯纤维/人造花岗岩复合材料力学性能实验设计

Table 5. Design of mechanical property experiment of steel polypropylene fiber/artificial granite composites

Serial number	Fibre/wt%	Filler/wt%	Aggregate/wt%	Binder/wt%
1	1.3	7.7	83	8
2	1.5	7.5	83	8
3	1.7	7.3	83	8
4	1.9	7.1	83	8
5	2.1	6.9	83	8
6	1.3	7.7	82	9
7	1.5	7.5	82	9
8	1.7	7.3	82	9
9	1.9	7.1	82	9
10	2.1	6.9	82	9
11	1.3	7.7	81	10
12	1.5	7.5	81	10
13	1.7	7.3	81	10
14	1.9	7.1	81	10
15	2.1	6.9	81	10
16	1.3	7.7	80	11
17	1.5	7.5	80	11
18	1.7	7.3	80	11
19	1.9	7.1	80	11
20	2.1	6.9	80	11
21	1.3	7.7	79	12
22	1.5	7.5	79	12
23	1.7	7.3	79	12
24	1.9	7.1	79	12
25	2.1	6.9	79	12
26	0	9.0	83	8
27	0	9.0	82	9
28	0	9.0	81	10
29	0	9.0	80	11
30	0	9.0	79	12

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