CN104911821A - Production method for carbon fiber and chemical fiber mixed non-woven fabrics - Google Patents
Production method for carbon fiber and chemical fiber mixed non-woven fabrics Download PDFInfo
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- CN104911821A CN104911821A CN201510343006.3A CN201510343006A CN104911821A CN 104911821 A CN104911821 A CN 104911821A CN 201510343006 A CN201510343006 A CN 201510343006A CN 104911821 A CN104911821 A CN 104911821A
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Abstract
The invention discloses a production method for carbon fiber and chemical fiber mixed non-woven fabrics. The method comprises the steps that high-strengthened chemical fibers with the tensile strength larger than 0.8 GPa are normally loosened and combed on a production line, carbon fibers with long fabrics are evenly inlaid on a high-strengthened chemical fiber combing layer in a net laying mode to form a material layer, RB pre-needling and CD main needling are performed on the material layer by adopting an angle pin mode that an included angle is formed between a needle and the horizontal direction in the forward direction of the material layer, and then the non-woven fabrics are formed. According to the method, the non-woven fabrics are produced by combining the carbon fibers and the high-strengthened chemical fibers, the fact that the chemical fibers have the good non-woven performance is utilized, spatial weaving is generated on the fibers through the non-woven technology, the problem of the anisotropy of mechanical properties is well solved, and the high-strengthened chemical fibers develop to be in a state that the good mechanical properties are achieved and even to the level of the low-end carbon fibers. In addition, the chemical fibers have the advantages of being low in cost and energy consumption.
Description
Technical field
The invention belongs to the production method of nonwoven fabric, be specifically related to the production method of a kind of carbon fibre and chemical fibre hybrid nonwoven cloth.
Background technology
Carry out nonwoven production there is the problem that cannot complete acupuncture by common non-woven fabric production technology always with carbon fibre, the fragility of its reason mainly carbon fibre is too large, and during acupuncture, fiber easily produces phenomenon of rupture.Therefore up till now carbon fibre still adopt in engineering be first woven into cloth then with tiling mode to produce component, there is following problem like this:
1, production efficiency is low: due to successively tiling be take a lot of work very much time, and easily produce lamination;
2, thickness direction is without fiber interweaving, therefore shearing resistance and shock resistance can be weak, although improve by the mode of high microsteping rigidity, the anisotropy of mechanical property still clearly;
3, owing to successively tiling, thus main as thin-wall case workpiece at present, be difficult to make the larger component of thickness.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, the carbon fibre and the production method of chemical fibre hybrid nonwoven cloth that provide a kind of cost low, energy-saving and cost-reducing, have higher mechanical strength with fibrous composite prepared by the method.
For the technical scheme realizing the object of the invention employing is as follows:
The production method of carbon fibre and chemical fibre hybrid nonwoven cloth, on streamline, first tensile strength is greater than 0.8GPa the normal shredding of high-strength chemical-fibre, combing, again will long fine carbon fiber so that lapping the mode on average even carded layer being layered on high-strength chemical-fibre to form the bed of material, then adopt pin to carry out RB pre-needling from the horizontal by the oblique pin mode of an angle to the bed of material along bed of material direction of advance and nonwoven fabric is made in the main acupuncture of CD.
The production method of carbon fibre and chemical fibre hybrid nonwoven cloth, also can be on streamline, first tensile strength is greater than 0.8GPa high-strength chemical-fibre and carbon fiber mixing, carry out shredding, combing, lapping operation again, then adopt pin to carry out RB pre-needling from the horizontal by the oblique pin mode of an angle to the bed of material along bed of material direction of advance and nonwoven fabric is made in the main acupuncture of CD.
The angle of described oblique pin is 20 degree ~ 60 degree.
Described carbon fiber accounts for the quality incorporation of total amount of material: 5% ~ 95%.
The tensile strength of described high-strength chemical-fibre is greater than 2GPa.
Beneficial effect of the present invention:
The inventive method produces nonwoven fabric owing to being combined with high-strength chemical-fibre by carbon fiber, make use of chemical fibre and there is good nonwoven performance, produce space by making fiber without spinning process to interweave, well solve the problem of Mechanical Property Anisotropy, and high-strength chemical-fibre dimension has also developed into the state having fine mechanical property, even reaches the level of low side carbon fiber.To have cost low for chemical fibre in addition, the low advantage of energy consumption.Carbon fiber and chemical fibre are carried out mixed nonwoven fabric manufacture, and the production for engineering component is new way carbon fibre being widely used in structural member.
Technical scheme of the present invention is further illustrated below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the process chart of the inventive method embodiment 1.
Fig. 2 is the process chart of the inventive method embodiment 2.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, the production method of carbon fibre and chemical fibre hybrid nonwoven cloth, adopt TENSILE STRENGTH to be the thick fibre of 4GPa and long fine carbon fiber, TENSILE STRENGTH is the terylene of 3.5GPa is raw material, first by normal for terylene shredding, combing on streamline, again by carbon fiber and terylene according to a certain percentage so that lapping the mode on average even carded layer being layered on terylene to form the bed of material, then adopt pin to carry out RB pre-needling from the horizontal by the oblique pin mode of 20 degree of angles to the bed of material along bed of material direction of advance and the nonwoven fabric finished product that thickness is 10mm is made in the main acupuncture of CD; The quality incorporation that described carbon fiber accounts for total amount of material is 5% or 10% or 20% or 40% or 70 or %95%; The terylene of described chemical fibre also can be TENSILE STRENGTH be 1.9GPa, or TENSILE STRENGTH is greater than 800MPa polyamide fibre, or the TENSILE STRENGTH polyvinyl alcohol fibre being greater than 2.4GPa etc.; The angle of described oblique pin is 20 degree, 30 degree, 45 degree, 60 degree.
Embodiment 2
As shown in Figure 2, employing TENSILE STRENGTH is thin fibre and the short fiber carbon fiber of 3GPa, TENSILE STRENGTH is the vinylon of 2.4GPa is raw material, carbon fiber first mixes with the ratio of vinylon in 1:1 by streamline, carry out shredding, combing, lapping operation again, then adopt pin to carry out RB pre-needling from the horizontal by the oblique pin mode of 60 angles to the bed of material along bed of material direction of advance and the nonwoven fabric finished product that thickness is 15mm is made in the main acupuncture of CD; The quality incorporation that described carbon fiber accounts for total amount of material is 5% or 10% or 20% or 40% or 70 or %95%; The terylene of described chemical fibre also can be TENSILE STRENGTH be 1.9GPa, or TENSILE STRENGTH is greater than 800MPa polyamide fibre, or the TENSILE STRENGTH polyvinyl alcohol fibre being greater than 2.4GPa etc.; The angle of described oblique pin is 20 degree, 30 degree, 45 degree, 60 degree.
Claims (5)
1. the production method of a carbon fibre and chemical fibre hybrid nonwoven cloth, it is characterized in that on streamline, first tensile strength is greater than 0.8GPa the normal shredding of high-strength chemical-fibre, combing, again will long fine carbon fiber so that lapping the mode on average even carded layer being layered on high-strength chemical-fibre to form the bed of material, then adopt pin to carry out RB pre-needling from the horizontal by the oblique pin mode of an angle to the bed of material along bed of material direction of advance and nonwoven fabric is made in the main acupuncture of CD.
2. the production method of a carbon fibre and chemical fibre hybrid nonwoven cloth, it is characterized in that on streamline, first tensile strength is greater than 0.8GPa high-strength chemical-fibre and carbon fiber mixing, carry out shredding, combing, lapping operation again, then adopt pin to carry out RB pre-needling from the horizontal by the oblique pin mode of an angle to the bed of material along bed of material direction of advance and nonwoven fabric is made in the main acupuncture of CD.
3. carbon fibre according to claim 1 and 2 and the production method of chemical fibre hybrid nonwoven cloth, is characterized in that the angle of described oblique pin is 20 degree ~ 60 degree.
4. carbon fibre according to claim 3 and the production method of chemical fibre hybrid nonwoven cloth, is characterized in that described carbon fiber accounts for the quality incorporation of total amount of material: 5% ~ 95%.
5. carbon fibre according to claim 4 and the production method of chemical fibre hybrid nonwoven cloth, is characterized in that the tensile strength of described high-strength chemical-fibre is greater than 2GPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510343006.3A CN104911821A (en) | 2015-06-19 | 2015-06-19 | Production method for carbon fiber and chemical fiber mixed non-woven fabrics |
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| CN201510343006.3A CN104911821A (en) | 2015-06-19 | 2015-06-19 | Production method for carbon fiber and chemical fiber mixed non-woven fabrics |
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| CN104911821A true CN104911821A (en) | 2015-09-16 |
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| CN1730764A (en) * | 2005-08-02 | 2006-02-08 | 中材科技股份有限公司 | Method for preparing continuous fiber reinforced thermoplastic plastic felt premix using needle punching |
| CN101407975A (en) * | 2008-10-31 | 2009-04-15 | 天津工业大学 | Method for preparing flexible non-weaving suction wave material and product thereof |
| EP2298541A1 (en) * | 2009-09-17 | 2011-03-23 | Rieter Technologies AG | Moulded automotive part |
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Application publication date: 20150916 |
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