Preparation method for modified reinforced hemp fiber
A hemp fiber and enhanced technology, which is applied in the field of preparation of modified enhanced hemp fiber, can solve problems such as shaving, long hairiness on the surface of the fabric, and poor interface compatibility, so as to increase the bonding strength, eliminate formaldehyde release, and improve phase. capacitive effect
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[0027] Example 1:
[0028] Such as figure 1 Shown as an example of the preparation method of a modified reinforced hemp fiber of the present invention, including the following process steps:
[0029] Step 1. Hemp fiber is washed with water;
[0030] Step 2. Dry the hemp fiber after washing;
[0031] Step 3. Prepare the working fluid: use water as the base fluid and JFC penetrant as the additive to prepare the penetrant working fluid;
[0032] Step 4. Pre-moisten the hemp fiber with warm water;
[0033] Step 5. Put the hemp fiber into the working fluid for heat preservation and dipping;
[0034] Step 6. Wash with warm water;
[0035] Step 7. Wash in cold water;
[0036] Step 8. Drying treatment.
[0037] In this embodiment, the ratio of the working fluid of the penetrant is: 0.8-1 g of JFC penetrant is added per liter of water.
[0038] In the step 5 of this embodiment, the fixed bath ratio of putting the hemp fiber into the working fluid for heat preservation and dipping is 1:50.
[0039] In t...
Example Embodiment
[0043] Example 2:
[0044] The modified and reinforced hemp fiber prepared in Example 1 was tested for harmful substances according to the CS-A0229 standard of Fiat Automobile Company. At the same time, the hemp fiber manufactured by conventional technology is taken as a comparison. The bag size is 100L, and the sampling size is 500c㎡. Wherein, the hemp fiber manufactured by the conventional process is not modified and reinforced.
[0045] The measured data of hazardous substances are as follows:
[0046]
Example Embodiment
[0047] Example 3:
[0048] The modified reinforced hemp fiber prepared in Example 1 was used as a raw material to prepare a hemp fiber composite board, and the density test and strength test were performed. At the same time, the hemp fiber without modification and reinforcement treatment was used as the raw material to prepare the hemp fiber composite board as a comparison.
[0049] In the above two hemp fiber composite boards, the ratio of hemp fiber and polymer PP fiber is the same, and both are 50% hemp fiber + 50% polymer PP fiber.
[0050] The measured density data of hemp fiber composite board is as follows:
[0051]
[0052] The measured tensile strength and bending strength data are compared as follows:
[0053]
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