Phenolic moulding plastic toughened by PET reclaimed material
A technology of phenolic molding compound and recycled materials, which is applied in the field of phenolic molding compound, can solve the problems that have not been seen to be remedied, and achieve the effects of enhanced toughness, simple and convenient preparation process, and reduced dosage
Pending Publication Date: 2021-06-01
常熟东南塑料有限公司
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Problems solved by technology
[0004] Although there is no lack of technical information about phenolic molding compounds in the published Chinese patent documents, such as CN101974198B recommends "high temperature resistant phenolic molding compound", CN105237948B provides "a kind of moisture-resistant phenolic molding compound", and CN105949710A discloses "a kind of moisture-resistant phenolic molding compound". Molding compound", CN103183908A discloses "a kind of high temperature resistant phenolic molding compound", CN1752136A introduces "a kind of composite phenolic molding compound and its preparation method" and CN1328317C announces "a kind of composite phenolic molding compound and its preparation method", etc., but there is no technical revelation that can make up for the aforementioned deficiency, and the technical solution to be introduced below is produced under this background
Method used
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Embodiment 1
[0026] Carry out following proportioning by weight parts:
[0027]
[0028]
preparation example 1
[0029] Preparation example 1 of phenolic molding compound toughened by recycled PET is as follows:
[0030] First wash and dry the recycled PET material, pulverize and refine the acid-catalyzed thermoplastic phenolic resin in a pulverizer, and then ball mill to pass through an 80-mesh sieve to obtain a powdery resin mixture. The raw materials and the powdery resin mixture are mixed (kneaded) in a kneader to obtain a mixture, and then the uniformly mixed mixture is masticated on the double rollers of the double-roller machine, that is, kneaded, and masticated at a temperature of 90°C. The time is 3.5 minutes. After plasticizing into flakes, cool to room temperature, and finally crush the flakes into granules in a pulverizer, and then sieve and granulate.
Embodiment 2
[0032] Carry out following proportioning by weight parts:
[0033]
[0034] The preparation example is the same as the preparation example 1, omitted.
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The invention relates to a phenolic moulding compound toughened by a PET reclaimed material, belonging to the technical field of thermosetting moulding compounds. The material is characterized by comprising the following raw materials in parts by weight: 15-20 parts of phenolic resin; 3-9 parts of a curing agent; 10 to 20 parts of lignin fiber; 10 to 20 parts of reinforcing fiber; 0.5 to 2 parts of a coupling agent; 2-5 parts of a release agent; 20-35 parts of an inorganic filler; and 15-20 parts of a PET reclaimed material. The strength can be improved; the toughness of the phenolic moulding plastic is obviously enhanced on the premise of ensuring the rigidity of the phenolic moulding plastic; the dosage of the phenolic resin is reduced, so that the ideal economical efficiency of the phenolic molding plastic is reflected; resource waste is avoided, and the green and environment-friendly effect is embodied; and the preparation process is simpler and more convenient.
Description
technical field [0001] The invention belongs to the technical field of thermosetting molding compounds, and in particular relates to a phenolic molding compound toughened with recycled PET materials. Background technique [0002] The aforementioned PET is polyethylene terephthalate, and the aforementioned PET recycled material is PET recycled material, that is, recycled PET plastic, which is usually melted and granulated for reuse to avoid resource waste. As one of the oldest industrial polymers, phenolic resin has a development history of nearly a hundred years, while phenolic molding compound is mainly composed of phenolic resin, fillers and other additives. Based on their wide source of raw materials, simple production process and simple equipment, Good processability, low price, can produce a variety of heat resistance, mechanical properties, electrical properties, thermal properties, ablation properties, chemical properties and radiation resistance properties can be wid...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C08L61/06C08L67/02C08L97/02C08K7/14C08K13/04
CPCC08L61/06C08L67/02C08L97/02C08L2205/03C08K7/14C08K13/04
Inventor 周凯荣杨犁新胡家斌吴斌齐丽华赵质斌
Owner 常熟东南塑料有限公司